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Ann Gibbs

Geologist at the USGS Pacific Coastal and Marine Science Center

Science and Products

Photo of flood staff installed in Kwigillingok, Alaska

Alaska Flood Staffs

The U.S. Geological Survey (USGS) uses observations of flooding in communities to monitor hazard conditions and support research by the USGS and its partners into a variety of hazard processes in Alaska. Local observations of flooding at flood staffs are used to document flood elevations, improve flood models, and support floodplain management decisions.
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities
Alaska Flood Staffs

Alaska Flood Staffs

The U.S. Geological Survey (USGS) uses observations of flooding in communities to monitor hazard conditions and support research by the USGS and its partners into a variety of hazard processes in Alaska. Local observations of flooding at flood staffs are used to document flood elevations, improve flood models, and support floodplain management decisions.
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A building lifted from its foundation by floodwater from Typhoon Merbok is trapped under a bridge in Nome, Alaska

Typhoon Merbok Disaster Emergency Recovery Efforts

Extreme storm events, such as Extratropical-Typhoon Merbok that hit the coast of Western Alaska in September 2022, are stark reminders of the devastating impacts coastal storms can have on Alaska Native community’s livelihoods and infrastructure. A chronic lack of environmental monitoring and technical assistance in rural Alaska present major barriers to communities affected by Typhoon Merbok...
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities
Typhoon Merbok Disaster Emergency Recovery Efforts

Typhoon Merbok Disaster Emergency Recovery Efforts

Extreme storm events, such as Extratropical-Typhoon Merbok that hit the coast of Western Alaska in September 2022, are stark reminders of the devastating impacts coastal storms can have on Alaska Native community’s livelihoods and infrastructure. A chronic lack of environmental monitoring and technical assistance in rural Alaska present major barriers to communities affected by Typhoon Merbok...
Learn More
High coastal arctic bluff with broken chunks, some that are ready to fall into the crashing waves, and some that have fallen.

Coastal Climate Impacts

The impacts of climate change and sea-level rise around the Pacific and Arctic Oceans can vary tremendously. Thus far the vast majority of national and international impact assessments and models of coastal climate change have focused on low-relief coastlines that are not near seismically active zones. Furthermore, the degree to which extreme waves and wind will add further stress to coastal...
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center
Coastal Climate Impacts

Coastal Climate Impacts

The impacts of climate change and sea-level rise around the Pacific and Arctic Oceans can vary tremendously. Thus far the vast majority of national and international impact assessments and models of coastal climate change have focused on low-relief coastlines that are not near seismically active zones. Furthermore, the degree to which extreme waves and wind will add further stress to coastal...
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Aerial photograph looking at an eroding bluff on an arctic island with ponded water, green grass, and dying grass.

Climate impacts to Arctic coasts

The Arctic region is warming faster than anywhere else in the nation. Understanding the rates and causes of coastal change in Alaska is needed to identify and mitigate hazards that might affect people and animals that call Alaska home.
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center
Climate impacts to Arctic coasts

Climate impacts to Arctic coasts

The Arctic region is warming faster than anywhere else in the nation. Understanding the rates and causes of coastal change in Alaska is needed to identify and mitigate hazards that might affect people and animals that call Alaska home.
Learn More
View of a coastline from a camera that changes every half hour, with calm waters and tundra in foreground.

Using Video Imagery to Study Wave Dynamics: Unalakleet

USGS scientists installed two video cameras atop a windmill tower in Unalakleet, Alaska, pointing westward over Norton Sound, to observe and quantify coastal processes such as wave run-up, development of rip channels, bluff erosion, and movement of sandbars and ice floes.
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center
Using Video Imagery to Study Wave Dynamics: Unalakleet

Using Video Imagery to Study Wave Dynamics: Unalakleet

USGS scientists installed two video cameras atop a windmill tower in Unalakleet, Alaska, pointing westward over Norton Sound, to observe and quantify coastal processes such as wave run-up, development of rip channels, bluff erosion, and movement of sandbars and ice floes.
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A camera system with two lenses mounted to a pole with wires running down the pole.

Using Video Imagery to Study Sediment Transport and Wave Dynamics: Nuvuk (Point Barrow)

Two coastal observing video cameras are installed atop a utility pole near the northernmost point of land in the United States, at Nuvuk (Point Barrow), Alaska. The cameras point northwest toward the Arctic Ocean and the boundary between the Chukchi and Beaufort Seas, and will be used to observe and quantify coastal processes such as wave run-up, bluff erosion, movement of sandbars and ice floes...
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center
Using Video Imagery to Study Sediment Transport and Wave Dynamics: Nuvuk (Point Barrow)

Using Video Imagery to Study Sediment Transport and Wave Dynamics: Nuvuk (Point Barrow)

Two coastal observing video cameras are installed atop a utility pole near the northernmost point of land in the United States, at Nuvuk (Point Barrow), Alaska. The cameras point northwest toward the Arctic Ocean and the boundary between the Chukchi and Beaufort Seas, and will be used to observe and quantify coastal processes such as wave run-up, bluff erosion, movement of sandbars and ice floes...
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Alaska North Slope LiDAR

High-resolution light detection and ranging (lidar) elevation data were acquired along the north coast of Alaska between 2009 and 2012. The lidar acquisition, from Icy Cape, Alaska to the United States/Canadian border, comprised approximately 11,000 km2. The airborne lidar data were acquired in support of the U.S. Geological Survey Coastal and Marine Geology Program. The purpose of this lidar...
By
Earth Resources Observation and Science (EROS) Center , Coastal National Elevation Database (CoNED) Applications Project
Alaska North Slope LiDAR

Alaska North Slope LiDAR

High-resolution light detection and ranging (lidar) elevation data were acquired along the north coast of Alaska between 2009 and 2012. The lidar acquisition, from Icy Cape, Alaska to the United States/Canadian border, comprised approximately 11,000 km2. The airborne lidar data were acquired in support of the U.S. Geological Survey Coastal and Marine Geology Program. The purpose of this lidar...
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A man stands smiling on a high coastal bluff near solar panels and a pole supported by guy wires, with a camera mounted on top.

Using Video Imagery to Study Coastal Change: Barter Island, Alaska

For a short study period, two video cameras overlooked the coast from atop the coastal bluff of Barter Island in northern Alaska. The purpose was to observe and quantify coastal processes such as wave run-up, development of rip channels, bluff erosion, and movement of sandbars and ice floes.
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center
Using Video Imagery to Study Coastal Change: Barter Island, Alaska

Using Video Imagery to Study Coastal Change: Barter Island, Alaska

For a short study period, two video cameras overlooked the coast from atop the coastal bluff of Barter Island in northern Alaska. The purpose was to observe and quantify coastal processes such as wave run-up, development of rip channels, bluff erosion, and movement of sandbars and ice floes.
Learn More
Filter Total Items: 20

CoSMoS-AK Modeled flood and erosion hazards at Golovin- Coastal Alaska CoSMoS-AK Modeled flood and erosion hazards at Golovin- Coastal Alaska

This data release consists of flood hazard maps from compound coastal hazards--specifically sea-level rise (SLR) and projected coastal storms. Products include projected flood depths, flood extents including uncertainties, water elevations, wave heights, velocity hazard, and erosion and sedimentation pattern. These are generated using a suite of numerical models driven by outputs from...
By
Pacific Coastal and Marine Science Center

CoSMoS-AK Modeled flood and erosion hazards at Golovin- Coastal Alaska CoSMoS-AK Modeled flood and erosion hazards at Golovin- Coastal Alaska

This data release consists of flood hazard maps from compound coastal hazards--specifically sea-level rise (SLR) and projected coastal storms. Products include projected flood depths, flood extents including uncertainties, water elevations, wave heights, velocity hazard, and erosion and sedimentation pattern. These are generated using a suite of numerical models driven by outputs from...
By
Pacific Coastal and Marine Science Center

CoSMoS-AK Modeled flood and erosion hazards at Unalakleet - Coastal Alaska CoSMoS-AK Modeled flood and erosion hazards at Unalakleet - Coastal Alaska

This data release consists of flood hazard maps from compound coastal hazards--specifically sea-level rise (SLR) and projected coastal storms. Products include projected flood depths, flood extents including uncertainties, water elevations, wave heights, velocity hazard, and erosion and sedimentation pattern. These are generated using a suite of numerical models driven by outputs from...
By
Pacific Coastal and Marine Science Center

Underwater imagery and classifications of the substrate and coral reef habitat on the Kona coast of the Island of Hawai`i, from 2003, 2004, and 2022 Underwater imagery and classifications of the substrate and coral reef habitat on the Kona coast of the Island of Hawai`i, from 2003, 2004, and 2022

Images of the seafloor off the Kona coast of the Island of Hawai`i were collected by the United States Geological Survey in 2003, 2004, and 2022, during field activities A803HW, A204HW, A604HW, and 2022-615-FA. The images were acquired in cooperation with the National Park Service, primarily in the waters off Kaloko-Honokohau National Historical Park, Pu`ukohola Heiau National Historic...
By
Pacific Coastal and Marine Science Center

CoSMoS-AK Modeled flood and erosion hazards at Utqiagvik - Coastal Alaska CoSMoS-AK Modeled flood and erosion hazards at Utqiagvik - Coastal Alaska

This data release consists of flood hazard maps from compound coastal hazards--specifically sea-level rise (SLR) and projected coastal storms. Products include projected flood depths, flood extents including uncertainties, water elevations, wave heights, velocity hazards, and erosion and sedimentation patterns. These are generated using a suite of numerical models driven by outputs from...
By
Pacific Coastal and Marine Science Center

CoSMoS-AK Modeled flood and erosion hazards at Elim - Coastal Alaska CoSMoS-AK Modeled flood and erosion hazards at Elim - Coastal Alaska

This data release consists of flood hazard maps from compound coastal hazards--specifically sea-level rise (SLR) and projected coastal storms. Products include projected flood depths, flood extents including uncertainties, water elevations, wave heights, velocity hazards, and erosion and sedimentation patterns. These are generated using a suite of numerical models driven by outputs from...
By
Pacific Coastal and Marine Science Center

Benthic habitat map of the geomorphological structure, biological cover, and geologic zonation of Olowalu reef, Maui Benthic habitat map of the geomorphological structure, biological cover, and geologic zonation of Olowalu reef, Maui

This shapefile contains habitat polygons identifying the dominant and major geomorphological structure, biological type and percent cover, and geologic zone for 11 square kilometers of Olowalu reef off west-central Maui at a minimum mapping unit of 100 square meters. Habitats were mapped with heads-up digitization using the NOAA Habitat Digitizer Extension in ArcMap (Esri, v.10.8.2)...
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Nearshore wave time-series along the coast of Alaska computed with a numerical wave model Nearshore wave time-series along the coast of Alaska computed with a numerical wave model

Alaska's Arctic coast has some of the highest erosion rates in the world. Erosion in the Arctic is primarily driven by permafrost thaw and wave activity. The warming climate decreases sea ice coverage, resulting in an increase in wave energy. To overcome the lack of available observational wave data in the nearshore, waves were downscaled with a numerical wave model (SWAN) utilizing...
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Swath bathymetry and acoustic-backscatter data collected in 2013 offshore Maui and Kaho`olawe, Hawaii, during field activity A-01-13-HW Swath bathymetry and acoustic-backscatter data collected in 2013 offshore Maui and Kaho`olawe, Hawaii, during field activity A-01-13-HW

Bathymetry and acoustic-backscatter data were collected during a February 2013 SWATHPlus survey offshore of the Hawaiian islands of Maui and Kaho`olawe (field activity number A-01-13-HW). The data are provided as 1-meter resolution GeoTIFF files.
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Alaska coastal orthoimagery and elevation data: Icy Cape to Cape Prince of Wales, 2016 Alaska coastal orthoimagery and elevation data: Icy Cape to Cape Prince of Wales, 2016

This data release presents orthoimagery and elevation data based on aerial imagery of the Alaska coastline between Icy Cape and Cape Prince of Wales. These data products and the source aerial imagery were generated by Fairbanks Fodar for the U.S. Geological Survey. Aerial imagery was collected in 2016 between August 29 and September 4 and extends from the shoreline to 400-4000 meters...
By
Pacific Coastal and Marine Science Center

Historical shorelines and morphological metrics for barrier islands and spits along the north coast of Alaska between Cape Beaufort and the U.S.-Canadian border, 1947 to 2019 Historical shorelines and morphological metrics for barrier islands and spits along the north coast of Alaska between Cape Beaufort and the U.S.-Canadian border, 1947 to 2019

A suite of morphological metrics were derived from existing shoreline and elevation datasets for barrier islands and spits located along the north-slope coast of Alaska between Cape Beaufort and the U.S.-Canadian border. This dataset includes barrier shorelines and polygons attributed with morphological metrics from five time periods: 1950s, 1980s, 2000s, 2010s, and 2020s.
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Nearshore bathymetry data from the Unalakleet River mouth, Alaska, 2019 Nearshore bathymetry data from the Unalakleet River mouth, Alaska, 2019

This data release presents nearshore bathymetry data collected at the mouth of the Unalakleet River in Alaska, near the city of Unalakleet. The data were collected in August 2019 by the U.S. Geological Survey, Pacific Coastal and Marine Science Center. Nearshore bathymetry was measured along survey lines from the shore to a depth of approximately -7.4 m NAVD88 and in a portion of the...
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Atlas of natural hazards in the Hawaiian coastal zone Atlas of natural hazards in the Hawaiian coastal zone

The purpose of this report is to communicate to citizens and regulatory authorities the history and relative intensity of coastal hazards in Hawaii. This information is the key to the wise use and management of coastal resources. The information contained in this document,we hope,will improve the ability of Hawaiian citizens and visitors to safely enjoy the coast and provide a strong...
Background of coral reefs beneath waves. Overlaid with photo of white woman with light brown hair. Audio description icon in Background of coral reefs beneath waves. Overlaid with photo of white woman with light brown hair. Audio description icon in
Climate Science Champions, Season 2: Ann Gibbs, Geologist (AD)
Background of coral reefs beneath waves. Overlaid with photo of white woman with light brown hair. Audio description icon in

Climate Science Champions, Season 2: Ann Gibbs, Geologist (AD)

Climate Science Champions, Season 2: Ann Gibbs, Geologist (AD)

Geologist Ann Gibbs studies the vulnerability of the rapidly-warming Alaska coast to climate change effects like sea level rise and permafrost thawing.

By
Ecosystems Mission Area, Natural Hazards Mission Area, Communications and Publishing
Background of coral reefs beneath waves. Overlaid with photo of white woman with light brown hair. Audio description icon in

Climate Science Champions, Season 2: Ann Gibbs, Geologist (AD)

Climate Science Champions, Season 2: Ann Gibbs, Geologist (AD)

Geologist Ann Gibbs studies the vulnerability of the rapidly-warming Alaska coast to climate change effects like sea level rise and permafrost thawing.

By
Ecosystems Mission Area, Natural Hazards Mission Area, Communications and Publishing
Background of a coral reef beneath waves. Overlaid with a photo of a white woman with light brown hair. Background of a coral reef beneath waves. Overlaid with a photo of a white woman with light brown hair.
Climate Science Champions, Season 2: Ann Gibbs, Geologist
Background of a coral reef beneath waves. Overlaid with a photo of a white woman with light brown hair.

Climate Science Champions, Season 2: Ann Gibbs, Geologist

Climate Science Champions, Season 2: Ann Gibbs, Geologist

Geologist Ann Gibbs studies the vulnerability of the rapidly-warming Alaska coast to climate change effects like sea level rise and permafrost thawing.

By
Ecosystems Mission Area, Natural Hazards Mission Area, Communications and Publishing
Background of a coral reef beneath waves. Overlaid with a photo of a white woman with light brown hair.

Climate Science Champions, Season 2: Ann Gibbs, Geologist

Climate Science Champions, Season 2: Ann Gibbs, Geologist

Geologist Ann Gibbs studies the vulnerability of the rapidly-warming Alaska coast to climate change effects like sea level rise and permafrost thawing.

By
Ecosystems Mission Area, Natural Hazards Mission Area, Communications and Publishing
Man holds a piece of cylindrical steel attached to a handle and thick chain, on the stern of a moving boat.
Pipe dredge for collecting seabed sediment
Pipe dredge for collecting seabed sediment
Man holds a piece of cylindrical steel attached to a handle and thick chain, on the stern of a moving boat.

Pipe dredge for collecting seabed sediment

Pipe dredge for collecting seabed sediment

USGS geologist Bruce Richmond prepares to deploy a pipe dredge that will be dragged along the seabed to collect sediment.

By
Natural Hazards, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center
Man holds a piece of cylindrical steel attached to a handle and thick chain, on the stern of a moving boat.

Pipe dredge for collecting seabed sediment

Pipe dredge for collecting seabed sediment

USGS geologist Bruce Richmond prepares to deploy a pipe dredge that will be dragged along the seabed to collect sediment.

By
Natural Hazards, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center
Aerial photograph looking at an eroding bluff on an arctic island with ponded water, green grass, and dying grass.
Pingok Island, Alaska
Pingok Island, Alaska
Aerial photograph looking at an eroding bluff on an arctic island with ponded water, green grass, and dying grass.

Pingok Island, Alaska

Pingok Island, Alaska

Photograph of Pingok Island, Alaska, reveals physical features of a changing Arctic: collapsing bluffs, salt-killed tundra (lighter brown near the bluff edge), and drained thermokarst lakes (rust-colored depressions).

By
Natural Hazards, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center
Aerial photograph looking at an eroding bluff on an arctic island with ponded water, green grass, and dying grass.

Pingok Island, Alaska

Pingok Island, Alaska

Photograph of Pingok Island, Alaska, reveals physical features of a changing Arctic: collapsing bluffs, salt-killed tundra (lighter brown near the bluff edge), and drained thermokarst lakes (rust-colored depressions).

By
Natural Hazards, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center
Filter Total Items: 47

Comparisons of shoreline positions from satellite-derived and traditional field- and remote-sensing techniques Comparisons of shoreline positions from satellite-derived and traditional field- and remote-sensing techniques

Satellite-derived shorelines (SDS) have the potential to help researchers answer critical coastal science questions and support work to predict coastal change by filling in the spatial and temporal gaps present in current field-based and remote-sensing data collection methods. The U.S. Geological Survey conducted comparison analyses of traditionally sourced shorelines and SDS in diverse...
Authors
Andrea C. O'Neill, Sharon Batiste, Daniel Buscombe, Joseph Burgess, Kara S. Doran, Ann Gibbs, Rachel Henderson, Julia Heslin, Catherine Janda, Mark Lundine, Joseph Terrano, Jonathan Warrick, Kathryn Weber
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, St. Petersburg Coastal and Marine Science Center, Woods Hole Coastal and Marine Science Center

Benthic habitat map of Olowalu Reef, Maui, Hawaii—Geomorphological structure, biological cover, and geologic zonation determined with spectral, lidar, and acoustic data Benthic habitat map of Olowalu Reef, Maui, Hawaii—Geomorphological structure, biological cover, and geologic zonation determined with spectral, lidar, and acoustic data

The fringing coral reef off Olowalu, Maui, Hawaii, has been identified as a local conservation priority site. In 2007, the National Oceanic and Atmospheric Administration (NOAA) produced a benthic habitat map of the Hawaiian Islands that was used as a foundation for this study. To support place-based management of the reef in the future, the U.S. Geological Survey (USGS) mapped the...
Authors
Liana N. Heberer, Kristen Alkins, Curt Storlazzi, Susan Cochran, Ann Gibbs, Russell Sparks, Kristy Stone, Itana Silva, Tatiana Martinez, Cole Peralto, Arielle S. Levine, Douglas Stow, Jillian Maloney
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Database and time series of nearshore waves along the Alaskan coast from the United States-Canada border to the Bering Sea Database and time series of nearshore waves along the Alaskan coast from the United States-Canada border to the Bering Sea

Alaska’s Arctic coast has some of the highest coastal erosion rates in the world, primarily driven by permafrost thaw and increasing wave energy. In the Arctic, a warming climate is driving sea ice cover to decrease in space and time. A lack of long-term observational wave data along Alaska’s coast challenges the ability of engineers, scientists, and planners to study and address threats...
Authors
Anita C. Engelstad, Li Erikson, Borja Reguero, Ann Gibbs, Kees Nederhoff
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Variability in terrestrial characteristics and erosion rates on the Alaskan Beaufort Sea coast Variability in terrestrial characteristics and erosion rates on the Alaskan Beaufort Sea coast

Arctic coastal environments are eroding and rapidly changing. A lack of pan-Arctic observations limits our ability to understand controls on coastal erosion rates across the entire Arctic region. Here, we capitalize on an abundance of geospatial and remotely sensed data, in addition to model output, from the North Slope of Alaska to identify relationships between historical erosion rates...
Authors
Anastasia Piliouras, Benjamin Jones, Tabatha Clevenger, Ann Gibbs, Joel Rowland
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Barrier islands and spits of northern Alaska: Decadal scale morphological change Barrier islands and spits of northern Alaska: Decadal scale morphological change

Arctic barrier islands and spits are dynamic features influenced by a variety of oceanographic, geologic, and environmental factors. Many serve as habitat and protection for native species and shelter the coast from waves and storms that can flood and erode the adjacent mainland. This paper summarizes results of a study documenting changes to barrier morphology along the North Slope...
Authors
Ann Gibbs, Li Erikson, Anna I Hamilton
By
Pacific Coastal and Marine Science Center

Measuring and attributing sedimentary and geomorphic responses to modern climate change: Challenges and opportunities Measuring and attributing sedimentary and geomorphic responses to modern climate change: Challenges and opportunities

Today, climate change is affecting virtually all terrestrial and nearshore settings. This commentary discusses the challenges of measuring climate-driven physical landscape responses to modern global warming: short and incomplete data records, land use and seismicity masking climatic effects, biases in data availability and resolution, and signal attenuation in sedimentary systems. We...
Authors
Amy East, Jonathan Warrick, Dongfeng Li, Joel B. Sankey, Margaret H. Redsteer, Ann Gibbs, Jeffrey Coe, Patrick Barnard
By
Ecosystems Mission Area, Geology, Minerals, Energy, and Geophysics Science Center, Pacific Coastal and Marine Science Center, Southwest Biological Science Center

Nearshore bathymetric changes along the Alaska Beaufort Sea coast and possible physical drivers Nearshore bathymetric changes along the Alaska Beaufort Sea coast and possible physical drivers

Erosion rates along Alaska's Beaufort Sea coast, among the highest in the world, are negatively impacting communities, industrial and military infrastructure, and wildlife habitat. Decreasing maximal winter ice extent and increasing summer open water duration and extent in the Beaufort Sea may be making the coast more vulnerable to destructive storm waves than during recent, colder...
Authors
Mark Zimmermann, Li Erikson, Ann Gibbs, Megan M. Prescott, Stephen Escarzaga, Craig Tweedie, Jeremy L. Kasper, Paul Duvoy
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Drivers, dynamics and impacts of changing Arctic coasts Drivers, dynamics and impacts of changing Arctic coasts

Arctic coasts are vulnerable to the effects of climate change, including rising sea levels and the loss of permafrost, sea ice and glaciers. Assessing the influence of anthropogenic warming on Arctic coastal dynamics, however, is challenged by the limited availability of observational, oceanographic and environmental data. Yet, with the majority of permafrost coasts being erosive...
Authors
Anna Irrgang, Mette Bendixen, Louise Farquharson, Alisa Baranskaya, Li Erikson, Ann Gibbs, Stanislav Ogorodov, Pier Overduin, Hugues Lantuit, Mikhail Grigoriev, Benjamin M. Jones
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Seven decades of coastal change at Barter Island, Alaska: Exploring the importance of waves and temperature on erosion of coastal permafrost bluffs Seven decades of coastal change at Barter Island, Alaska: Exploring the importance of waves and temperature on erosion of coastal permafrost bluffs

Observational data of coastal change over much of the Arctic are limited largely due to its immensity, remoteness, harsh environment, and restricted periods of sunlight and ice-free conditions. Barter Island, Alaska, is one of the few locations where an extensive, observational dataset exists, which enables a detailed assessment of the trends and patterns of coastal change over decadal...
Authors
Ann Gibbs, Li Erikson, Benjamin M. Jones, Bruce M. Richmond, Anita Engelstad
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Assessment of barrier island morphological change in northern Alaska Assessment of barrier island morphological change in northern Alaska

Arctic barriers islands are highly dynamic features influenced by a variety of oceanographic, geologic, and environmental factors. Many Alaskan barrier islands and spits serve as habitat and protection for native species, as well as shelter the coast from waves and storms that cause flooding and degradation of coastal villages. This study summarizes changes to barrier morphology in time...
Authors
Anna Hamilton, Ann Gibbs, Li Erikson, Anita C. Engelstad
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

The value of US coral reefs for flood risk reduction The value of US coral reefs for flood risk reduction

Habitats, such as coral reefs, can mitigate increasing flood damages through coastal protection services. We provide a fine-scale, national valuation of the flood risk reduction benefits of coral habitats to people, property, economies and infrastructure. Across 3,100 km of US coastline, the top-most 1 m of coral reefs prevents the 100-yr flood from growing by 23% (113 km2), avoiding...
Authors
Borja Reguero, Curt Storlazzi, Ann Gibbs, James Shope, Aaron Cole, Kristen A. Cumming, Mike Beck
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

USGS permafrost research determines the risks of permafrost thaw to biologic and hydrologic resources USGS permafrost research determines the risks of permafrost thaw to biologic and hydrologic resources

The U.S. Geological Survey (USGS), in collaboration with university, Federal, Tribal, and independent partners, conducts fundamental research on the distribution, vulnerability, and importance of permafrost in arctic and boreal ecosystems. Scientists, land managers, and policy makers use USGS data to help make decisions for development, wildlife habitat, and other needs. Native villages...
Authors
Mark Waldrop, Lesleigh Anderson, Mark Dornblaser, Li Erikson, Ann Gibbs, Nicole Herman-Mercer, Stephanie R. James, Miriam Jones, Joshua Koch, Mary-Cathrine Leewis, Kristen Manies, Burke Minsley, Neal Pastick, Vijay Patil, Frank Urban, Michelle Walvoord, Kimberly Wickland, Christian Zimmerman
By
Natural Hazards Mission Area, Water Resources Mission Area, Ecosystems Land Change Science Program, Coastal and Marine Hazards and Resources Program, Land Change Science Program, Volcano Hazards Program, Earth Resources Observation and Science (EROS) Center , Geology, Geophysics, and Geochemistry Science Center, Geology, Minerals, Energy, and Geophysics Science Center, Geosciences and Environmental Change Science Center, Pacific Coastal and Marine Science Center, Volcano Science Center

Non-USGS Publications**

D'Antonio, N.L., and Gibbs, A.E., 2016, Still-image frame grabs and benthic habitat interpretation of underwater video footage, March 2014, Faga`alu Bay, Tutuila Island, American Samoa: U.S. Geological Survey data release, doi: 10.5066/F7N877V1.
Gibbs, A.E., and D'Antonio, N.L., 2016, Underwater video footage, March 2014, Faga`alu Bay, Tutuila Island, American Samoa: data release, doi: 10.5066/F70V89V6.

**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.

Coastal Change in Alaska Coastal Change in Alaska

Alaska's north coast has been home to indigenous communities for centuries. Changing coastlines threaten important infrastructure and historic sites that support indigenous communities. Changing coastlines also can potentially reduce habitat for Arctic wildlife, such as polar bears, shorebirds, and walruses. Oil- and gas-related development sites and U.S. Department of Defense installations
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center
Filter Total Items: 14
Comparing Nearly 40 years of Satellite-derived Shorelines with Traditional Shoreline Measurements

Comparing Nearly 40 years of Satellite-derived Shorelines with Traditional Shoreline Measurements

A new USGS study compares nearly 40 years of satellite-derived shorelines with traditional shoreline measurements, finding that despite greater...

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Modeling Wave Dynamics to Assess Coastal Erosion Threats Along Alaska's Arctic Coast

Modeling Wave Dynamics to Assess Coastal Erosion Threats Along Alaska's Arctic Coast

In a recently published study, scientists from the US Geological Survey (USGS), University of California Santa Cruz, and Deltares employed advanced...

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USGS aids storm response to Extratropical Typhoon Merbok in Alaska

USGS aids storm response to Extratropical Typhoon Merbok in Alaska

In September 2022, the west coast of Alaska was struck by Extratropical Typhoon Merbok, generating significant storm surge that caused severe flooding...

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Seven Decades of Coastal Change at Barter Island, AK

Seven Decades of Coastal Change at Barter Island, AK

The Beaufort Sea coast along the northern edge of Alaska is a place of extremes. Home to the northernmost year-round settlements in the United States...

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Tracking Changes to Barrier Islands in the Arctic

Tracking Changes to Barrier Islands in the Arctic

Barrier islands and spits shelter coastlines from storms, protecting coastal communities and providing habitat for native species.

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Explore Coastal Change in Alaska

Explore Coastal Change in Alaska

A new geonarrative shows how USGS Coastal Change Hazards research is directly addressing the ability to understand, measure and project coastal change...

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Coastal Change Mapping and Research in Alaska

Coastal Change Mapping and Research in Alaska

USGS studies coastal change along Alaska’s 66,000 miles of complex coastline - which stands as a tremendous resource to the Nation.

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USGS Uses Drone to Measure Methane Escaping from Arctic Permafrost: Low-Cost Method Fills Gap in Detection Techniques

USGS Uses Drone to Measure Methane Escaping from Arctic Permafrost: Low-Cost Method Fills Gap in Detection Techniques

The USGS has developed a low-cost technique for making detailed measurements of methane escaping from thawing permafrost in coastal Arctic bluffs.

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USGS provides information about Alaska coastal change to Scientific American

USGS provides information about Alaska coastal change to Scientific American

USGS scientists at the Pacific Coastal and Marine Science Center spoke by phone with Scientific American writer Andrea Thompson on November 15.

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Updated assessment of erosion rates on Alaska’s Arctic coast

Updated assessment of erosion rates on Alaska’s Arctic coast

The USGS updated its shoreline-change rates for Alaska’s north coast between the U.S.-Canadian Border and Icy Cape as part of the National Assessment...

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Gifts from the Sea

Gifts from the Sea

The USGS has completed the second phase of releasing thousands of photos and videos of the seafloor and coastline through their Coastal and Marine...

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Northern Alaska Coastal Erosion Threatens Habitat and Infrastructure

Northern Alaska Coastal Erosion Threatens Habitat and Infrastructure

ANCHORAGE, Alaska — In a new study published today, scientists from the U.S. Geological Survey found that the remote northern Alaska coast has some of...
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Science and Products

Photo of flood staff installed in Kwigillingok, Alaska

Alaska Flood Staffs

The U.S. Geological Survey (USGS) uses observations of flooding in communities to monitor hazard conditions and support research by the USGS and its partners into a variety of hazard processes in Alaska. Local observations of flooding at flood staffs are used to document flood elevations, improve flood models, and support floodplain management decisions.
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Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities
Alaska Flood Staffs

Alaska Flood Staffs

The U.S. Geological Survey (USGS) uses observations of flooding in communities to monitor hazard conditions and support research by the USGS and its partners into a variety of hazard processes in Alaska. Local observations of flooding at flood staffs are used to document flood elevations, improve flood models, and support floodplain management decisions.
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A building lifted from its foundation by floodwater from Typhoon Merbok is trapped under a bridge in Nome, Alaska

Typhoon Merbok Disaster Emergency Recovery Efforts

Extreme storm events, such as Extratropical-Typhoon Merbok that hit the coast of Western Alaska in September 2022, are stark reminders of the devastating impacts coastal storms can have on Alaska Native community’s livelihoods and infrastructure. A chronic lack of environmental monitoring and technical assistance in rural Alaska present major barriers to communities affected by Typhoon Merbok...
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Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities
Typhoon Merbok Disaster Emergency Recovery Efforts

Typhoon Merbok Disaster Emergency Recovery Efforts

Extreme storm events, such as Extratropical-Typhoon Merbok that hit the coast of Western Alaska in September 2022, are stark reminders of the devastating impacts coastal storms can have on Alaska Native community’s livelihoods and infrastructure. A chronic lack of environmental monitoring and technical assistance in rural Alaska present major barriers to communities affected by Typhoon Merbok...
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High coastal arctic bluff with broken chunks, some that are ready to fall into the crashing waves, and some that have fallen.

Coastal Climate Impacts

The impacts of climate change and sea-level rise around the Pacific and Arctic Oceans can vary tremendously. Thus far the vast majority of national and international impact assessments and models of coastal climate change have focused on low-relief coastlines that are not near seismically active zones. Furthermore, the degree to which extreme waves and wind will add further stress to coastal...
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Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center
Coastal Climate Impacts

Coastal Climate Impacts

The impacts of climate change and sea-level rise around the Pacific and Arctic Oceans can vary tremendously. Thus far the vast majority of national and international impact assessments and models of coastal climate change have focused on low-relief coastlines that are not near seismically active zones. Furthermore, the degree to which extreme waves and wind will add further stress to coastal...
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Aerial photograph looking at an eroding bluff on an arctic island with ponded water, green grass, and dying grass.

Climate impacts to Arctic coasts

The Arctic region is warming faster than anywhere else in the nation. Understanding the rates and causes of coastal change in Alaska is needed to identify and mitigate hazards that might affect people and animals that call Alaska home.
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Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center
Climate impacts to Arctic coasts

Climate impacts to Arctic coasts

The Arctic region is warming faster than anywhere else in the nation. Understanding the rates and causes of coastal change in Alaska is needed to identify and mitigate hazards that might affect people and animals that call Alaska home.
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View of a coastline from a camera that changes every half hour, with calm waters and tundra in foreground.

Using Video Imagery to Study Wave Dynamics: Unalakleet

USGS scientists installed two video cameras atop a windmill tower in Unalakleet, Alaska, pointing westward over Norton Sound, to observe and quantify coastal processes such as wave run-up, development of rip channels, bluff erosion, and movement of sandbars and ice floes.
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Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center
Using Video Imagery to Study Wave Dynamics: Unalakleet

Using Video Imagery to Study Wave Dynamics: Unalakleet

USGS scientists installed two video cameras atop a windmill tower in Unalakleet, Alaska, pointing westward over Norton Sound, to observe and quantify coastal processes such as wave run-up, development of rip channels, bluff erosion, and movement of sandbars and ice floes.
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A camera system with two lenses mounted to a pole with wires running down the pole.

Using Video Imagery to Study Sediment Transport and Wave Dynamics: Nuvuk (Point Barrow)

Two coastal observing video cameras are installed atop a utility pole near the northernmost point of land in the United States, at Nuvuk (Point Barrow), Alaska. The cameras point northwest toward the Arctic Ocean and the boundary between the Chukchi and Beaufort Seas, and will be used to observe and quantify coastal processes such as wave run-up, bluff erosion, movement of sandbars and ice floes...
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center
Using Video Imagery to Study Sediment Transport and Wave Dynamics: Nuvuk (Point Barrow)

Using Video Imagery to Study Sediment Transport and Wave Dynamics: Nuvuk (Point Barrow)

Two coastal observing video cameras are installed atop a utility pole near the northernmost point of land in the United States, at Nuvuk (Point Barrow), Alaska. The cameras point northwest toward the Arctic Ocean and the boundary between the Chukchi and Beaufort Seas, and will be used to observe and quantify coastal processes such as wave run-up, bluff erosion, movement of sandbars and ice floes...
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Alaska North Slope LiDAR

High-resolution light detection and ranging (lidar) elevation data were acquired along the north coast of Alaska between 2009 and 2012. The lidar acquisition, from Icy Cape, Alaska to the United States/Canadian border, comprised approximately 11,000 km2. The airborne lidar data were acquired in support of the U.S. Geological Survey Coastal and Marine Geology Program. The purpose of this lidar...
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Earth Resources Observation and Science (EROS) Center , Coastal National Elevation Database (CoNED) Applications Project
Alaska North Slope LiDAR

Alaska North Slope LiDAR

High-resolution light detection and ranging (lidar) elevation data were acquired along the north coast of Alaska between 2009 and 2012. The lidar acquisition, from Icy Cape, Alaska to the United States/Canadian border, comprised approximately 11,000 km2. The airborne lidar data were acquired in support of the U.S. Geological Survey Coastal and Marine Geology Program. The purpose of this lidar...
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A man stands smiling on a high coastal bluff near solar panels and a pole supported by guy wires, with a camera mounted on top.

Using Video Imagery to Study Coastal Change: Barter Island, Alaska

For a short study period, two video cameras overlooked the coast from atop the coastal bluff of Barter Island in northern Alaska. The purpose was to observe and quantify coastal processes such as wave run-up, development of rip channels, bluff erosion, and movement of sandbars and ice floes.
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center
Using Video Imagery to Study Coastal Change: Barter Island, Alaska

Using Video Imagery to Study Coastal Change: Barter Island, Alaska

For a short study period, two video cameras overlooked the coast from atop the coastal bluff of Barter Island in northern Alaska. The purpose was to observe and quantify coastal processes such as wave run-up, development of rip channels, bluff erosion, and movement of sandbars and ice floes.
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CoSMoS-AK Modeled flood and erosion hazards at Golovin- Coastal Alaska CoSMoS-AK Modeled flood and erosion hazards at Golovin- Coastal Alaska

This data release consists of flood hazard maps from compound coastal hazards--specifically sea-level rise (SLR) and projected coastal storms. Products include projected flood depths, flood extents including uncertainties, water elevations, wave heights, velocity hazard, and erosion and sedimentation pattern. These are generated using a suite of numerical models driven by outputs from...
By
Pacific Coastal and Marine Science Center

CoSMoS-AK Modeled flood and erosion hazards at Golovin- Coastal Alaska CoSMoS-AK Modeled flood and erosion hazards at Golovin- Coastal Alaska

This data release consists of flood hazard maps from compound coastal hazards--specifically sea-level rise (SLR) and projected coastal storms. Products include projected flood depths, flood extents including uncertainties, water elevations, wave heights, velocity hazard, and erosion and sedimentation pattern. These are generated using a suite of numerical models driven by outputs from...
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Pacific Coastal and Marine Science Center

CoSMoS-AK Modeled flood and erosion hazards at Unalakleet - Coastal Alaska CoSMoS-AK Modeled flood and erosion hazards at Unalakleet - Coastal Alaska

This data release consists of flood hazard maps from compound coastal hazards--specifically sea-level rise (SLR) and projected coastal storms. Products include projected flood depths, flood extents including uncertainties, water elevations, wave heights, velocity hazard, and erosion and sedimentation pattern. These are generated using a suite of numerical models driven by outputs from...
By
Pacific Coastal and Marine Science Center

Underwater imagery and classifications of the substrate and coral reef habitat on the Kona coast of the Island of Hawai`i, from 2003, 2004, and 2022 Underwater imagery and classifications of the substrate and coral reef habitat on the Kona coast of the Island of Hawai`i, from 2003, 2004, and 2022

Images of the seafloor off the Kona coast of the Island of Hawai`i were collected by the United States Geological Survey in 2003, 2004, and 2022, during field activities A803HW, A204HW, A604HW, and 2022-615-FA. The images were acquired in cooperation with the National Park Service, primarily in the waters off Kaloko-Honokohau National Historical Park, Pu`ukohola Heiau National Historic...
By
Pacific Coastal and Marine Science Center

CoSMoS-AK Modeled flood and erosion hazards at Utqiagvik - Coastal Alaska CoSMoS-AK Modeled flood and erosion hazards at Utqiagvik - Coastal Alaska

This data release consists of flood hazard maps from compound coastal hazards--specifically sea-level rise (SLR) and projected coastal storms. Products include projected flood depths, flood extents including uncertainties, water elevations, wave heights, velocity hazards, and erosion and sedimentation patterns. These are generated using a suite of numerical models driven by outputs from...
By
Pacific Coastal and Marine Science Center

CoSMoS-AK Modeled flood and erosion hazards at Elim - Coastal Alaska CoSMoS-AK Modeled flood and erosion hazards at Elim - Coastal Alaska

This data release consists of flood hazard maps from compound coastal hazards--specifically sea-level rise (SLR) and projected coastal storms. Products include projected flood depths, flood extents including uncertainties, water elevations, wave heights, velocity hazards, and erosion and sedimentation patterns. These are generated using a suite of numerical models driven by outputs from...
By
Pacific Coastal and Marine Science Center

Benthic habitat map of the geomorphological structure, biological cover, and geologic zonation of Olowalu reef, Maui Benthic habitat map of the geomorphological structure, biological cover, and geologic zonation of Olowalu reef, Maui

This shapefile contains habitat polygons identifying the dominant and major geomorphological structure, biological type and percent cover, and geologic zone for 11 square kilometers of Olowalu reef off west-central Maui at a minimum mapping unit of 100 square meters. Habitats were mapped with heads-up digitization using the NOAA Habitat Digitizer Extension in ArcMap (Esri, v.10.8.2)...
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Nearshore wave time-series along the coast of Alaska computed with a numerical wave model Nearshore wave time-series along the coast of Alaska computed with a numerical wave model

Alaska's Arctic coast has some of the highest erosion rates in the world. Erosion in the Arctic is primarily driven by permafrost thaw and wave activity. The warming climate decreases sea ice coverage, resulting in an increase in wave energy. To overcome the lack of available observational wave data in the nearshore, waves were downscaled with a numerical wave model (SWAN) utilizing...
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Swath bathymetry and acoustic-backscatter data collected in 2013 offshore Maui and Kaho`olawe, Hawaii, during field activity A-01-13-HW Swath bathymetry and acoustic-backscatter data collected in 2013 offshore Maui and Kaho`olawe, Hawaii, during field activity A-01-13-HW

Bathymetry and acoustic-backscatter data were collected during a February 2013 SWATHPlus survey offshore of the Hawaiian islands of Maui and Kaho`olawe (field activity number A-01-13-HW). The data are provided as 1-meter resolution GeoTIFF files.
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Alaska coastal orthoimagery and elevation data: Icy Cape to Cape Prince of Wales, 2016 Alaska coastal orthoimagery and elevation data: Icy Cape to Cape Prince of Wales, 2016

This data release presents orthoimagery and elevation data based on aerial imagery of the Alaska coastline between Icy Cape and Cape Prince of Wales. These data products and the source aerial imagery were generated by Fairbanks Fodar for the U.S. Geological Survey. Aerial imagery was collected in 2016 between August 29 and September 4 and extends from the shoreline to 400-4000 meters...
By
Pacific Coastal and Marine Science Center

Historical shorelines and morphological metrics for barrier islands and spits along the north coast of Alaska between Cape Beaufort and the U.S.-Canadian border, 1947 to 2019 Historical shorelines and morphological metrics for barrier islands and spits along the north coast of Alaska between Cape Beaufort and the U.S.-Canadian border, 1947 to 2019

A suite of morphological metrics were derived from existing shoreline and elevation datasets for barrier islands and spits located along the north-slope coast of Alaska between Cape Beaufort and the U.S.-Canadian border. This dataset includes barrier shorelines and polygons attributed with morphological metrics from five time periods: 1950s, 1980s, 2000s, 2010s, and 2020s.
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Nearshore bathymetry data from the Unalakleet River mouth, Alaska, 2019 Nearshore bathymetry data from the Unalakleet River mouth, Alaska, 2019

This data release presents nearshore bathymetry data collected at the mouth of the Unalakleet River in Alaska, near the city of Unalakleet. The data were collected in August 2019 by the U.S. Geological Survey, Pacific Coastal and Marine Science Center. Nearshore bathymetry was measured along survey lines from the shore to a depth of approximately -7.4 m NAVD88 and in a portion of the...
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Atlas of natural hazards in the Hawaiian coastal zone Atlas of natural hazards in the Hawaiian coastal zone

The purpose of this report is to communicate to citizens and regulatory authorities the history and relative intensity of coastal hazards in Hawaii. This information is the key to the wise use and management of coastal resources. The information contained in this document,we hope,will improve the ability of Hawaiian citizens and visitors to safely enjoy the coast and provide a strong...
Background of coral reefs beneath waves. Overlaid with photo of white woman with light brown hair. Audio description icon in Background of coral reefs beneath waves. Overlaid with photo of white woman with light brown hair. Audio description icon in
Climate Science Champions, Season 2: Ann Gibbs, Geologist (AD)
Background of coral reefs beneath waves. Overlaid with photo of white woman with light brown hair. Audio description icon in

Climate Science Champions, Season 2: Ann Gibbs, Geologist (AD)

Climate Science Champions, Season 2: Ann Gibbs, Geologist (AD)

Geologist Ann Gibbs studies the vulnerability of the rapidly-warming Alaska coast to climate change effects like sea level rise and permafrost thawing.

By
Ecosystems Mission Area, Natural Hazards Mission Area, Communications and Publishing
Background of coral reefs beneath waves. Overlaid with photo of white woman with light brown hair. Audio description icon in

Climate Science Champions, Season 2: Ann Gibbs, Geologist (AD)

Climate Science Champions, Season 2: Ann Gibbs, Geologist (AD)

Geologist Ann Gibbs studies the vulnerability of the rapidly-warming Alaska coast to climate change effects like sea level rise and permafrost thawing.

By
Ecosystems Mission Area, Natural Hazards Mission Area, Communications and Publishing
Background of a coral reef beneath waves. Overlaid with a photo of a white woman with light brown hair. Background of a coral reef beneath waves. Overlaid with a photo of a white woman with light brown hair.
Climate Science Champions, Season 2: Ann Gibbs, Geologist
Background of a coral reef beneath waves. Overlaid with a photo of a white woman with light brown hair.

Climate Science Champions, Season 2: Ann Gibbs, Geologist

Climate Science Champions, Season 2: Ann Gibbs, Geologist

Geologist Ann Gibbs studies the vulnerability of the rapidly-warming Alaska coast to climate change effects like sea level rise and permafrost thawing.

By
Ecosystems Mission Area, Natural Hazards Mission Area, Communications and Publishing
Background of a coral reef beneath waves. Overlaid with a photo of a white woman with light brown hair.

Climate Science Champions, Season 2: Ann Gibbs, Geologist

Climate Science Champions, Season 2: Ann Gibbs, Geologist

Geologist Ann Gibbs studies the vulnerability of the rapidly-warming Alaska coast to climate change effects like sea level rise and permafrost thawing.

By
Ecosystems Mission Area, Natural Hazards Mission Area, Communications and Publishing
Man holds a piece of cylindrical steel attached to a handle and thick chain, on the stern of a moving boat.
Pipe dredge for collecting seabed sediment
Pipe dredge for collecting seabed sediment
Man holds a piece of cylindrical steel attached to a handle and thick chain, on the stern of a moving boat.

Pipe dredge for collecting seabed sediment

Pipe dredge for collecting seabed sediment

USGS geologist Bruce Richmond prepares to deploy a pipe dredge that will be dragged along the seabed to collect sediment.

By
Natural Hazards, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center
Man holds a piece of cylindrical steel attached to a handle and thick chain, on the stern of a moving boat.

Pipe dredge for collecting seabed sediment

Pipe dredge for collecting seabed sediment

USGS geologist Bruce Richmond prepares to deploy a pipe dredge that will be dragged along the seabed to collect sediment.

By
Natural Hazards, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center
Aerial photograph looking at an eroding bluff on an arctic island with ponded water, green grass, and dying grass.
Pingok Island, Alaska
Pingok Island, Alaska
Aerial photograph looking at an eroding bluff on an arctic island with ponded water, green grass, and dying grass.

Pingok Island, Alaska

Pingok Island, Alaska

Photograph of Pingok Island, Alaska, reveals physical features of a changing Arctic: collapsing bluffs, salt-killed tundra (lighter brown near the bluff edge), and drained thermokarst lakes (rust-colored depressions).

By
Natural Hazards, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center
Aerial photograph looking at an eroding bluff on an arctic island with ponded water, green grass, and dying grass.

Pingok Island, Alaska

Pingok Island, Alaska

Photograph of Pingok Island, Alaska, reveals physical features of a changing Arctic: collapsing bluffs, salt-killed tundra (lighter brown near the bluff edge), and drained thermokarst lakes (rust-colored depressions).

By
Natural Hazards, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center
Filter Total Items: 47

Comparisons of shoreline positions from satellite-derived and traditional field- and remote-sensing techniques Comparisons of shoreline positions from satellite-derived and traditional field- and remote-sensing techniques

Satellite-derived shorelines (SDS) have the potential to help researchers answer critical coastal science questions and support work to predict coastal change by filling in the spatial and temporal gaps present in current field-based and remote-sensing data collection methods. The U.S. Geological Survey conducted comparison analyses of traditionally sourced shorelines and SDS in diverse...
Authors
Andrea C. O'Neill, Sharon Batiste, Daniel Buscombe, Joseph Burgess, Kara S. Doran, Ann Gibbs, Rachel Henderson, Julia Heslin, Catherine Janda, Mark Lundine, Joseph Terrano, Jonathan Warrick, Kathryn Weber
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, St. Petersburg Coastal and Marine Science Center, Woods Hole Coastal and Marine Science Center

Benthic habitat map of Olowalu Reef, Maui, Hawaii—Geomorphological structure, biological cover, and geologic zonation determined with spectral, lidar, and acoustic data Benthic habitat map of Olowalu Reef, Maui, Hawaii—Geomorphological structure, biological cover, and geologic zonation determined with spectral, lidar, and acoustic data

The fringing coral reef off Olowalu, Maui, Hawaii, has been identified as a local conservation priority site. In 2007, the National Oceanic and Atmospheric Administration (NOAA) produced a benthic habitat map of the Hawaiian Islands that was used as a foundation for this study. To support place-based management of the reef in the future, the U.S. Geological Survey (USGS) mapped the...
Authors
Liana N. Heberer, Kristen Alkins, Curt Storlazzi, Susan Cochran, Ann Gibbs, Russell Sparks, Kristy Stone, Itana Silva, Tatiana Martinez, Cole Peralto, Arielle S. Levine, Douglas Stow, Jillian Maloney
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Database and time series of nearshore waves along the Alaskan coast from the United States-Canada border to the Bering Sea Database and time series of nearshore waves along the Alaskan coast from the United States-Canada border to the Bering Sea

Alaska’s Arctic coast has some of the highest coastal erosion rates in the world, primarily driven by permafrost thaw and increasing wave energy. In the Arctic, a warming climate is driving sea ice cover to decrease in space and time. A lack of long-term observational wave data along Alaska’s coast challenges the ability of engineers, scientists, and planners to study and address threats...
Authors
Anita C. Engelstad, Li Erikson, Borja Reguero, Ann Gibbs, Kees Nederhoff
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Variability in terrestrial characteristics and erosion rates on the Alaskan Beaufort Sea coast Variability in terrestrial characteristics and erosion rates on the Alaskan Beaufort Sea coast

Arctic coastal environments are eroding and rapidly changing. A lack of pan-Arctic observations limits our ability to understand controls on coastal erosion rates across the entire Arctic region. Here, we capitalize on an abundance of geospatial and remotely sensed data, in addition to model output, from the North Slope of Alaska to identify relationships between historical erosion rates...
Authors
Anastasia Piliouras, Benjamin Jones, Tabatha Clevenger, Ann Gibbs, Joel Rowland
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Barrier islands and spits of northern Alaska: Decadal scale morphological change Barrier islands and spits of northern Alaska: Decadal scale morphological change

Arctic barrier islands and spits are dynamic features influenced by a variety of oceanographic, geologic, and environmental factors. Many serve as habitat and protection for native species and shelter the coast from waves and storms that can flood and erode the adjacent mainland. This paper summarizes results of a study documenting changes to barrier morphology along the North Slope...
Authors
Ann Gibbs, Li Erikson, Anna I Hamilton
By
Pacific Coastal and Marine Science Center

Measuring and attributing sedimentary and geomorphic responses to modern climate change: Challenges and opportunities Measuring and attributing sedimentary and geomorphic responses to modern climate change: Challenges and opportunities

Today, climate change is affecting virtually all terrestrial and nearshore settings. This commentary discusses the challenges of measuring climate-driven physical landscape responses to modern global warming: short and incomplete data records, land use and seismicity masking climatic effects, biases in data availability and resolution, and signal attenuation in sedimentary systems. We...
Authors
Amy East, Jonathan Warrick, Dongfeng Li, Joel B. Sankey, Margaret H. Redsteer, Ann Gibbs, Jeffrey Coe, Patrick Barnard
By
Ecosystems Mission Area, Geology, Minerals, Energy, and Geophysics Science Center, Pacific Coastal and Marine Science Center, Southwest Biological Science Center

Nearshore bathymetric changes along the Alaska Beaufort Sea coast and possible physical drivers Nearshore bathymetric changes along the Alaska Beaufort Sea coast and possible physical drivers

Erosion rates along Alaska's Beaufort Sea coast, among the highest in the world, are negatively impacting communities, industrial and military infrastructure, and wildlife habitat. Decreasing maximal winter ice extent and increasing summer open water duration and extent in the Beaufort Sea may be making the coast more vulnerable to destructive storm waves than during recent, colder...
Authors
Mark Zimmermann, Li Erikson, Ann Gibbs, Megan M. Prescott, Stephen Escarzaga, Craig Tweedie, Jeremy L. Kasper, Paul Duvoy
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Drivers, dynamics and impacts of changing Arctic coasts Drivers, dynamics and impacts of changing Arctic coasts

Arctic coasts are vulnerable to the effects of climate change, including rising sea levels and the loss of permafrost, sea ice and glaciers. Assessing the influence of anthropogenic warming on Arctic coastal dynamics, however, is challenged by the limited availability of observational, oceanographic and environmental data. Yet, with the majority of permafrost coasts being erosive...
Authors
Anna Irrgang, Mette Bendixen, Louise Farquharson, Alisa Baranskaya, Li Erikson, Ann Gibbs, Stanislav Ogorodov, Pier Overduin, Hugues Lantuit, Mikhail Grigoriev, Benjamin M. Jones
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Seven decades of coastal change at Barter Island, Alaska: Exploring the importance of waves and temperature on erosion of coastal permafrost bluffs Seven decades of coastal change at Barter Island, Alaska: Exploring the importance of waves and temperature on erosion of coastal permafrost bluffs

Observational data of coastal change over much of the Arctic are limited largely due to its immensity, remoteness, harsh environment, and restricted periods of sunlight and ice-free conditions. Barter Island, Alaska, is one of the few locations where an extensive, observational dataset exists, which enables a detailed assessment of the trends and patterns of coastal change over decadal...
Authors
Ann Gibbs, Li Erikson, Benjamin M. Jones, Bruce M. Richmond, Anita Engelstad
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Assessment of barrier island morphological change in northern Alaska Assessment of barrier island morphological change in northern Alaska

Arctic barriers islands are highly dynamic features influenced by a variety of oceanographic, geologic, and environmental factors. Many Alaskan barrier islands and spits serve as habitat and protection for native species, as well as shelter the coast from waves and storms that cause flooding and degradation of coastal villages. This study summarizes changes to barrier morphology in time...
Authors
Anna Hamilton, Ann Gibbs, Li Erikson, Anita C. Engelstad
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

The value of US coral reefs for flood risk reduction The value of US coral reefs for flood risk reduction

Habitats, such as coral reefs, can mitigate increasing flood damages through coastal protection services. We provide a fine-scale, national valuation of the flood risk reduction benefits of coral habitats to people, property, economies and infrastructure. Across 3,100 km of US coastline, the top-most 1 m of coral reefs prevents the 100-yr flood from growing by 23% (113 km2), avoiding...
Authors
Borja Reguero, Curt Storlazzi, Ann Gibbs, James Shope, Aaron Cole, Kristen A. Cumming, Mike Beck
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

USGS permafrost research determines the risks of permafrost thaw to biologic and hydrologic resources USGS permafrost research determines the risks of permafrost thaw to biologic and hydrologic resources

The U.S. Geological Survey (USGS), in collaboration with university, Federal, Tribal, and independent partners, conducts fundamental research on the distribution, vulnerability, and importance of permafrost in arctic and boreal ecosystems. Scientists, land managers, and policy makers use USGS data to help make decisions for development, wildlife habitat, and other needs. Native villages...
Authors
Mark Waldrop, Lesleigh Anderson, Mark Dornblaser, Li Erikson, Ann Gibbs, Nicole Herman-Mercer, Stephanie R. James, Miriam Jones, Joshua Koch, Mary-Cathrine Leewis, Kristen Manies, Burke Minsley, Neal Pastick, Vijay Patil, Frank Urban, Michelle Walvoord, Kimberly Wickland, Christian Zimmerman
By
Natural Hazards Mission Area, Water Resources Mission Area, Ecosystems Land Change Science Program, Coastal and Marine Hazards and Resources Program, Land Change Science Program, Volcano Hazards Program, Earth Resources Observation and Science (EROS) Center , Geology, Geophysics, and Geochemistry Science Center, Geology, Minerals, Energy, and Geophysics Science Center, Geosciences and Environmental Change Science Center, Pacific Coastal and Marine Science Center, Volcano Science Center

Non-USGS Publications**

D'Antonio, N.L., and Gibbs, A.E., 2016, Still-image frame grabs and benthic habitat interpretation of underwater video footage, March 2014, Faga`alu Bay, Tutuila Island, American Samoa: U.S. Geological Survey data release, doi: 10.5066/F7N877V1.
Gibbs, A.E., and D'Antonio, N.L., 2016, Underwater video footage, March 2014, Faga`alu Bay, Tutuila Island, American Samoa: data release, doi: 10.5066/F70V89V6.

**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.

Coastal Change in Alaska Coastal Change in Alaska

Alaska's north coast has been home to indigenous communities for centuries. Changing coastlines threaten important infrastructure and historic sites that support indigenous communities. Changing coastlines also can potentially reduce habitat for Arctic wildlife, such as polar bears, shorebirds, and walruses. Oil- and gas-related development sites and U.S. Department of Defense installations
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center
Filter Total Items: 14
Comparing Nearly 40 years of Satellite-derived Shorelines with Traditional Shoreline Measurements

Comparing Nearly 40 years of Satellite-derived Shorelines with Traditional Shoreline Measurements

A new USGS study compares nearly 40 years of satellite-derived shorelines with traditional shoreline measurements, finding that despite greater...

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Modeling Wave Dynamics to Assess Coastal Erosion Threats Along Alaska's Arctic Coast

Modeling Wave Dynamics to Assess Coastal Erosion Threats Along Alaska's Arctic Coast

In a recently published study, scientists from the US Geological Survey (USGS), University of California Santa Cruz, and Deltares employed advanced...

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USGS aids storm response to Extratropical Typhoon Merbok in Alaska

USGS aids storm response to Extratropical Typhoon Merbok in Alaska

In September 2022, the west coast of Alaska was struck by Extratropical Typhoon Merbok, generating significant storm surge that caused severe flooding...

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Seven Decades of Coastal Change at Barter Island, AK

Seven Decades of Coastal Change at Barter Island, AK

The Beaufort Sea coast along the northern edge of Alaska is a place of extremes. Home to the northernmost year-round settlements in the United States...

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Tracking Changes to Barrier Islands in the Arctic

Tracking Changes to Barrier Islands in the Arctic

Barrier islands and spits shelter coastlines from storms, protecting coastal communities and providing habitat for native species.

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Explore Coastal Change in Alaska

Explore Coastal Change in Alaska

A new geonarrative shows how USGS Coastal Change Hazards research is directly addressing the ability to understand, measure and project coastal change...

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Coastal Change Mapping and Research in Alaska

Coastal Change Mapping and Research in Alaska

USGS studies coastal change along Alaska’s 66,000 miles of complex coastline - which stands as a tremendous resource to the Nation.

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USGS Uses Drone to Measure Methane Escaping from Arctic Permafrost: Low-Cost Method Fills Gap in Detection Techniques

USGS Uses Drone to Measure Methane Escaping from Arctic Permafrost: Low-Cost Method Fills Gap in Detection Techniques

The USGS has developed a low-cost technique for making detailed measurements of methane escaping from thawing permafrost in coastal Arctic bluffs.

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USGS provides information about Alaska coastal change to Scientific American

USGS provides information about Alaska coastal change to Scientific American

USGS scientists at the Pacific Coastal and Marine Science Center spoke by phone with Scientific American writer Andrea Thompson on November 15.

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Updated assessment of erosion rates on Alaska’s Arctic coast

Updated assessment of erosion rates on Alaska’s Arctic coast

The USGS updated its shoreline-change rates for Alaska’s north coast between the U.S.-Canadian Border and Icy Cape as part of the National Assessment...

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Gifts from the Sea

Gifts from the Sea

The USGS has completed the second phase of releasing thousands of photos and videos of the seafloor and coastline through their Coastal and Marine...

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Northern Alaska Coastal Erosion Threatens Habitat and Infrastructure

Northern Alaska Coastal Erosion Threatens Habitat and Infrastructure

ANCHORAGE, Alaska — In a new study published today, scientists from the U.S. Geological Survey found that the remote northern Alaska coast has some of...
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