Eric Grossman
Research Geologist with the USGS Pacific Coastal and Marine Science Center
Science and Products
Filter Total Items: 31
Topobathymetric Model of Puget Sound, Washington, 1887 to 2017 Topobathymetric Model of Puget Sound, Washington, 1887 to 2017
To support the modeling of storm-induced flooding, the USGS Coastal National Elevation Database (CoNED) Applications Project has created an integrated 1-meter topobathymetric digital elevation model (TBDEM) for Puget Sound. Puget Sound is located along the northwestern coast of Washington and is part of the Salish Sea. Puget Sound is the third largest estuary in the United States. High...
Wave observations from nearshore bottom-mounted pressure sensors in Skagit and Bellingham Bays, Washington, USA from Dec 2017 to Feb 2018 Wave observations from nearshore bottom-mounted pressure sensors in Skagit and Bellingham Bays, Washington, USA from Dec 2017 to Feb 2018
RBRduo pressure and temperature sensors, mounted on aluminum frames, were moored in shallow (less than 6 m) water depths in Skagit and Bellingham Bays, Washington, USA, from December 2017 to February 2018, to capture wave heights and periods. Continuous pressure fluctuations are transformed into surface-wave observations of wave heights, periods, and frequency spectra at 30-minute...
Nearshore water properties and estuary conditions along the coral reef coastline of west Hawaii Island (2010-2014) Nearshore water properties and estuary conditions along the coral reef coastline of west Hawaii Island (2010-2014)
Spatial and continuous time-series measurements of water properties, including temperature, salinity, pH, and dissolved oxygen, from a range of depths and distances from shore, were collected along the west coast of the Island of Hawaii. These data and associated analyses help characterize the variability of coral reef habitats, and in particular, the influence of low temperature and low...
Coral cover and health determined from seafloor photographs and diver observations, West Hawai'i, 2010-2011 Coral cover and health determined from seafloor photographs and diver observations, West Hawai'i, 2010-2011
Bottom photographs and transect survey data were collected at 31 stations spanning 75 km of west Hawaii Island over the period 2010 to 2011 to examine coral community structure, coral colony size structure, and coral health. The data also establish baseline conditions and support efforts to track change in coral communities in the future. Stations were sited along a gradient in exposure...
Data collected in 2008-2010 to evaluate juvenile salmon and forage fish use of eelgrass on the Skagit River Delta, Washington State, USA Data collected in 2008-2010 to evaluate juvenile salmon and forage fish use of eelgrass on the Skagit River Delta, Washington State, USA
Data are abundance and body size (length) of juvenile salmon, forage fish, and other species captured with a lampara net in eelgrass and nearby unvegetated habitat on the Skagit River Delta monthly, April-September, 2008-2010, as well as vegetation status, water depth, temperature, salinity, and clarity for each fish netting event.
High-resolution bathymetry and acoustic-backscatter data collected in 2004, 2005, 2007, and 2010 in Skagit Bay, Washington High-resolution bathymetry and acoustic-backscatter data collected in 2004, 2005, 2007, and 2010 in Skagit Bay, Washington
This data release provides the U.S. Geological Survey (USGS) Pacific Coastal and Marine Science Center (PCMSC) 2004, 2005, 2007, and 2010 bathymetry data that was collected in Skagit Bay, Washington as well as a merged 2005-2010 bathymetry grid. Also, this data release provides the acoustic-backscatter as a merged 2005-2010 backscatter image. All bathymetry grids are provided at 1-m...
Stage, water velocity and water quality data collected in the Lower Nisqually River, McAllister Creek and tidal channels of the Nisqually River Delta, Thurston County, Washington, February 11, 2016 to September 18, 2017 (ver. 1.1, December, 2019) Stage, water velocity and water quality data collected in the Lower Nisqually River, McAllister Creek and tidal channels of the Nisqually River Delta, Thurston County, Washington, February 11, 2016 to September 18, 2017 (ver. 1.1, December, 2019)
This data release includes time series data of stage, water velocity and water quality parameters at multiple locations in the tidally-influenced reaches of the Nisqually River and McAllister Creek, and tidal channels of the Nisqually River Delta. In total, time series data were collected at multiple sites from February 11, 2016 to March 19, 2018 during separate but generally overlapping...
Filter Total Items: 49
Comparing automated classification and digitization approaches to detect change in eelgrass bed extent during restoration of a large river delta Comparing automated classification and digitization approaches to detect change in eelgrass bed extent during restoration of a large river delta
Native eelgrass (Zostera marina) is an important contributor to ecosystem services that supplies cover for juvenile fish, supports a variety of invertebrate prey resources for fish and waterbirds, provides substrate for herring roe consumed by numerous fish and birds, helps stabilize sediment, and sequesters organic carbon. Seagrasses are in decline globally, and monitoring changes in...
Authors
Anna Elizabeth Davenport, Jerry D. Davis, Isa Woo, Eric E. Grossman, Jesse B. Barham, Christopher S. Ellings, John Y. Takekawa
Suspended-sediment loads in the lower Stillaguamish River, Snohomish County, Washington, 2014–15 Suspended-sediment loads in the lower Stillaguamish River, Snohomish County, Washington, 2014–15
Continuous records of discharge and turbidity at a U.S. Geological Survey (USGS) streamgage in the lower Stillaguamish River were paired with discrete measurements of suspended-sediment concentration (SSC) in order to estimate suspended-sediment loads over the water years 2014 and 2015. First, relations between turbidity and SSC were developed and used to translate the continuous...
Authors
Scott A. Anderson, Christopher A. Curran, Eric E. Grossman
2010-2015 Juvenile fish ecology in the Nisqually River Delta and Nisqually Reach Aquatic Reserve 2010-2015 Juvenile fish ecology in the Nisqually River Delta and Nisqually Reach Aquatic Reserve
The return of tidal inundation to over 750 acres of the U. S. Fish and Wildlife Service Billy Frank Jr. Nisqually National Wildlife Refuge (NNWR) in fall of 2009 was the crowning moment in the effort to protect and restore the Nisqually Delta. The Nisqually NWR project complemented three earlier restoration projects completed by the Nisqually Indian Tribe (Tribe) on tribal property to...
Authors
Sayre Hodgson, Christopher S. Ellings, Steve P. Rubin, Michael C. Hayes, Walker Duval, Eric E. Grossman
Sediment load and distribution in the lower Skagit River, Skagit County, Washington Sediment load and distribution in the lower Skagit River, Skagit County, Washington
The Skagit River delivers about 40 percent of all fluvial sediment that enters Puget Sound, influencing flood hazards in the Skagit lowlands, critically important estuarine habitat in the delta, and some of the most diverse and productive agriculture in western Washington. A total of 175 measurements of suspended-sediment load, made routinely from 1974 to 1993, and sporadically from 2006...
Authors
Christopher A. Curran, Eric E. Grossman, Mark C. Mastin, Raegan L. Huffman
Assessing tidal marsh vulnerability to sea-level rise in the Skagit Delta Assessing tidal marsh vulnerability to sea-level rise in the Skagit Delta
Historical aerial photographs, from 1937 to the present, show Skagit Delta tidal marshes prograding into Skagit Bay for most of the record, but the progradation rates have been steadily declining and the marshes have begun to erode in recent decades despite the large suspended sediment load provided by the Skagit River. In an area of the delta isolated from direct riverine sediment...
Authors
W. Gregory Hood, Eric E. Grossman, Curt Veldhuisen
Suspended sediment delivery to Puget Sound from the lower Nisqually River, western Washington, July 2010–November 2011 Suspended sediment delivery to Puget Sound from the lower Nisqually River, western Washington, July 2010–November 2011
On average, the Nisqually River delivers about 100,000 metric tons per year (t/yr) of suspended sediment to Puget Sound, western Washington, a small proportion of the estimated 1,200,000 metric tons (t) of sediment reported to flow in the upper Nisqually River that drains the glaciated, recurrently active Mount Rainier stratovolcano. Most of the upper Nisqually River sediment load is...
Authors
Christopher A. Curran, Eric E. Grossman, Christopher S. Magirl, James R. Foreman
Changes in habitat availability for outmigrating juvenile salmon (Oncorhychus spp.) following estuary restoration Changes in habitat availability for outmigrating juvenile salmon (Oncorhychus spp.) following estuary restoration
The restoration of the Nisqually River Delta (Washington, U.S.A.) represents one of the largest efforts toward reestablishing the ecosystem function and resilience of modified habitat in the Puget Sound, particularly for anadromous salmonid species. The opportunity for outmigrating salmon to access and benefit from the expansion of available tidal habitat can be quantified by several...
Authors
Christopher S. Ellings, Melanie J. Davis, Eric E. Grossman, Sayre Hodgson, Kelley L. Turner, Isa Woo PR, Glynnis Nakai, Jean E. Takekawa, John Y. Takekawa
Impacts of Climate Change on Regulated Streamflow, Hydrologic Extremes, Hydropower Production, and Sediment Discharge in the Skagit River Basin Impacts of Climate Change on Regulated Streamflow, Hydrologic Extremes, Hydropower Production, and Sediment Discharge in the Skagit River Basin
Previous studies have shown that the impacts of climate change on the hydrologic response of the Skagit River are likely to be substantial under natural (i.e. unregulated) conditions. To assess the combined effects of changing natural flow and dam operations that determine impacts to regulated flow, a new integrated daily-time-step reservoir operations model was constructed for the...
Authors
Se-Yeun Lee, Alan F. Hamlet, Eric E. Grossman
Combined effects of projected sea level rise, storm surge, and peak river flows on water levels in the Skagit Floodplain Combined effects of projected sea level rise, storm surge, and peak river flows on water levels in the Skagit Floodplain
Current understanding of the combined effects of sea level rise (SLR), storm surge, and changes in river flooding on near-coastal environments is very limited. This project uses a suite of numerical models to examine the combined effects of projected future climate change on flooding in the Skagit floodplain and estuary. Statistically and dynamically downscaled global climate model...
Authors
Josheph J Hamman, Alan F. Hamlet, Roger Fuller, Eric E. Grossman
The Swinomish Indian Tribal Community prepares for climate change impacts The Swinomish Indian Tribal Community prepares for climate change impacts
From changes in traditional foods to concerns of displacement from rising seas, this coastal community in the Pacific Northwest is assessing potential impacts to make decisions for their future.
Authors
Eric E. Grossman, Jamie Donatuto, Sarah Grossman, Larry W. Campbell
Island outlook: Warm and swampy Island outlook: Warm and swampy
In his In Depth News story “Warming may not swamp islands” (1 August, p. 496), C. Pala argues that “coral reefs supporting sandy atoll islands will grow and rise in tandem with the sea,” based largely on studies that showed stable Pacific-island area over recent decades (1–4). He suggests that recent land losses are driven mostly by bad choices and that islanders are being affected “for...
Authors
Dennis Hubbard, Eberhard Gischler, Peter Davies, Lucien Montaggioni, Gilbert Camoin, Wolf-Christian Dullo, Curt D. Storlazzi, Michael E. Field, Charles Fletcher, Eric E. Grossman, C. Sheppard, Halard Lescinsky, Douglas Fenner, John McManus, Sander Scheffers
Mount Baker lahars and debris flows, ancient, modern, and future Mount Baker lahars and debris flows, ancient, modern, and future
The Middle Fork Nooksack River drains the southwestern slopes of the active Mount Baker stratovolcano in northwest Washington State. The river enters Bellingham Bay at a growing delta 98 km to the west. Various types of debris flows have descended the river, generated by volcano collapse or eruption (lahars), glacial outburst floods, and moraine landslides. Initial deposition of sediment...
Authors
David S. Tucker, Kevin M. Scott, Eric E. Grossman, Scott Linneman
Science and Products
Filter Total Items: 31
Topobathymetric Model of Puget Sound, Washington, 1887 to 2017 Topobathymetric Model of Puget Sound, Washington, 1887 to 2017
To support the modeling of storm-induced flooding, the USGS Coastal National Elevation Database (CoNED) Applications Project has created an integrated 1-meter topobathymetric digital elevation model (TBDEM) for Puget Sound. Puget Sound is located along the northwestern coast of Washington and is part of the Salish Sea. Puget Sound is the third largest estuary in the United States. High...
Wave observations from nearshore bottom-mounted pressure sensors in Skagit and Bellingham Bays, Washington, USA from Dec 2017 to Feb 2018 Wave observations from nearshore bottom-mounted pressure sensors in Skagit and Bellingham Bays, Washington, USA from Dec 2017 to Feb 2018
RBRduo pressure and temperature sensors, mounted on aluminum frames, were moored in shallow (less than 6 m) water depths in Skagit and Bellingham Bays, Washington, USA, from December 2017 to February 2018, to capture wave heights and periods. Continuous pressure fluctuations are transformed into surface-wave observations of wave heights, periods, and frequency spectra at 30-minute...
Nearshore water properties and estuary conditions along the coral reef coastline of west Hawaii Island (2010-2014) Nearshore water properties and estuary conditions along the coral reef coastline of west Hawaii Island (2010-2014)
Spatial and continuous time-series measurements of water properties, including temperature, salinity, pH, and dissolved oxygen, from a range of depths and distances from shore, were collected along the west coast of the Island of Hawaii. These data and associated analyses help characterize the variability of coral reef habitats, and in particular, the influence of low temperature and low...
Coral cover and health determined from seafloor photographs and diver observations, West Hawai'i, 2010-2011 Coral cover and health determined from seafloor photographs and diver observations, West Hawai'i, 2010-2011
Bottom photographs and transect survey data were collected at 31 stations spanning 75 km of west Hawaii Island over the period 2010 to 2011 to examine coral community structure, coral colony size structure, and coral health. The data also establish baseline conditions and support efforts to track change in coral communities in the future. Stations were sited along a gradient in exposure...
Data collected in 2008-2010 to evaluate juvenile salmon and forage fish use of eelgrass on the Skagit River Delta, Washington State, USA Data collected in 2008-2010 to evaluate juvenile salmon and forage fish use of eelgrass on the Skagit River Delta, Washington State, USA
Data are abundance and body size (length) of juvenile salmon, forage fish, and other species captured with a lampara net in eelgrass and nearby unvegetated habitat on the Skagit River Delta monthly, April-September, 2008-2010, as well as vegetation status, water depth, temperature, salinity, and clarity for each fish netting event.
High-resolution bathymetry and acoustic-backscatter data collected in 2004, 2005, 2007, and 2010 in Skagit Bay, Washington High-resolution bathymetry and acoustic-backscatter data collected in 2004, 2005, 2007, and 2010 in Skagit Bay, Washington
This data release provides the U.S. Geological Survey (USGS) Pacific Coastal and Marine Science Center (PCMSC) 2004, 2005, 2007, and 2010 bathymetry data that was collected in Skagit Bay, Washington as well as a merged 2005-2010 bathymetry grid. Also, this data release provides the acoustic-backscatter as a merged 2005-2010 backscatter image. All bathymetry grids are provided at 1-m...
Stage, water velocity and water quality data collected in the Lower Nisqually River, McAllister Creek and tidal channels of the Nisqually River Delta, Thurston County, Washington, February 11, 2016 to September 18, 2017 (ver. 1.1, December, 2019) Stage, water velocity and water quality data collected in the Lower Nisqually River, McAllister Creek and tidal channels of the Nisqually River Delta, Thurston County, Washington, February 11, 2016 to September 18, 2017 (ver. 1.1, December, 2019)
This data release includes time series data of stage, water velocity and water quality parameters at multiple locations in the tidally-influenced reaches of the Nisqually River and McAllister Creek, and tidal channels of the Nisqually River Delta. In total, time series data were collected at multiple sites from February 11, 2016 to March 19, 2018 during separate but generally overlapping...
Filter Total Items: 49
Comparing automated classification and digitization approaches to detect change in eelgrass bed extent during restoration of a large river delta Comparing automated classification and digitization approaches to detect change in eelgrass bed extent during restoration of a large river delta
Native eelgrass (Zostera marina) is an important contributor to ecosystem services that supplies cover for juvenile fish, supports a variety of invertebrate prey resources for fish and waterbirds, provides substrate for herring roe consumed by numerous fish and birds, helps stabilize sediment, and sequesters organic carbon. Seagrasses are in decline globally, and monitoring changes in...
Authors
Anna Elizabeth Davenport, Jerry D. Davis, Isa Woo, Eric E. Grossman, Jesse B. Barham, Christopher S. Ellings, John Y. Takekawa
Suspended-sediment loads in the lower Stillaguamish River, Snohomish County, Washington, 2014–15 Suspended-sediment loads in the lower Stillaguamish River, Snohomish County, Washington, 2014–15
Continuous records of discharge and turbidity at a U.S. Geological Survey (USGS) streamgage in the lower Stillaguamish River were paired with discrete measurements of suspended-sediment concentration (SSC) in order to estimate suspended-sediment loads over the water years 2014 and 2015. First, relations between turbidity and SSC were developed and used to translate the continuous...
Authors
Scott A. Anderson, Christopher A. Curran, Eric E. Grossman
2010-2015 Juvenile fish ecology in the Nisqually River Delta and Nisqually Reach Aquatic Reserve 2010-2015 Juvenile fish ecology in the Nisqually River Delta and Nisqually Reach Aquatic Reserve
The return of tidal inundation to over 750 acres of the U. S. Fish and Wildlife Service Billy Frank Jr. Nisqually National Wildlife Refuge (NNWR) in fall of 2009 was the crowning moment in the effort to protect and restore the Nisqually Delta. The Nisqually NWR project complemented three earlier restoration projects completed by the Nisqually Indian Tribe (Tribe) on tribal property to...
Authors
Sayre Hodgson, Christopher S. Ellings, Steve P. Rubin, Michael C. Hayes, Walker Duval, Eric E. Grossman
Sediment load and distribution in the lower Skagit River, Skagit County, Washington Sediment load and distribution in the lower Skagit River, Skagit County, Washington
The Skagit River delivers about 40 percent of all fluvial sediment that enters Puget Sound, influencing flood hazards in the Skagit lowlands, critically important estuarine habitat in the delta, and some of the most diverse and productive agriculture in western Washington. A total of 175 measurements of suspended-sediment load, made routinely from 1974 to 1993, and sporadically from 2006...
Authors
Christopher A. Curran, Eric E. Grossman, Mark C. Mastin, Raegan L. Huffman
Assessing tidal marsh vulnerability to sea-level rise in the Skagit Delta Assessing tidal marsh vulnerability to sea-level rise in the Skagit Delta
Historical aerial photographs, from 1937 to the present, show Skagit Delta tidal marshes prograding into Skagit Bay for most of the record, but the progradation rates have been steadily declining and the marshes have begun to erode in recent decades despite the large suspended sediment load provided by the Skagit River. In an area of the delta isolated from direct riverine sediment...
Authors
W. Gregory Hood, Eric E. Grossman, Curt Veldhuisen
Suspended sediment delivery to Puget Sound from the lower Nisqually River, western Washington, July 2010–November 2011 Suspended sediment delivery to Puget Sound from the lower Nisqually River, western Washington, July 2010–November 2011
On average, the Nisqually River delivers about 100,000 metric tons per year (t/yr) of suspended sediment to Puget Sound, western Washington, a small proportion of the estimated 1,200,000 metric tons (t) of sediment reported to flow in the upper Nisqually River that drains the glaciated, recurrently active Mount Rainier stratovolcano. Most of the upper Nisqually River sediment load is...
Authors
Christopher A. Curran, Eric E. Grossman, Christopher S. Magirl, James R. Foreman
Changes in habitat availability for outmigrating juvenile salmon (Oncorhychus spp.) following estuary restoration Changes in habitat availability for outmigrating juvenile salmon (Oncorhychus spp.) following estuary restoration
The restoration of the Nisqually River Delta (Washington, U.S.A.) represents one of the largest efforts toward reestablishing the ecosystem function and resilience of modified habitat in the Puget Sound, particularly for anadromous salmonid species. The opportunity for outmigrating salmon to access and benefit from the expansion of available tidal habitat can be quantified by several...
Authors
Christopher S. Ellings, Melanie J. Davis, Eric E. Grossman, Sayre Hodgson, Kelley L. Turner, Isa Woo PR, Glynnis Nakai, Jean E. Takekawa, John Y. Takekawa
Impacts of Climate Change on Regulated Streamflow, Hydrologic Extremes, Hydropower Production, and Sediment Discharge in the Skagit River Basin Impacts of Climate Change on Regulated Streamflow, Hydrologic Extremes, Hydropower Production, and Sediment Discharge in the Skagit River Basin
Previous studies have shown that the impacts of climate change on the hydrologic response of the Skagit River are likely to be substantial under natural (i.e. unregulated) conditions. To assess the combined effects of changing natural flow and dam operations that determine impacts to regulated flow, a new integrated daily-time-step reservoir operations model was constructed for the...
Authors
Se-Yeun Lee, Alan F. Hamlet, Eric E. Grossman
Combined effects of projected sea level rise, storm surge, and peak river flows on water levels in the Skagit Floodplain Combined effects of projected sea level rise, storm surge, and peak river flows on water levels in the Skagit Floodplain
Current understanding of the combined effects of sea level rise (SLR), storm surge, and changes in river flooding on near-coastal environments is very limited. This project uses a suite of numerical models to examine the combined effects of projected future climate change on flooding in the Skagit floodplain and estuary. Statistically and dynamically downscaled global climate model...
Authors
Josheph J Hamman, Alan F. Hamlet, Roger Fuller, Eric E. Grossman
The Swinomish Indian Tribal Community prepares for climate change impacts The Swinomish Indian Tribal Community prepares for climate change impacts
From changes in traditional foods to concerns of displacement from rising seas, this coastal community in the Pacific Northwest is assessing potential impacts to make decisions for their future.
Authors
Eric E. Grossman, Jamie Donatuto, Sarah Grossman, Larry W. Campbell
Island outlook: Warm and swampy Island outlook: Warm and swampy
In his In Depth News story “Warming may not swamp islands” (1 August, p. 496), C. Pala argues that “coral reefs supporting sandy atoll islands will grow and rise in tandem with the sea,” based largely on studies that showed stable Pacific-island area over recent decades (1–4). He suggests that recent land losses are driven mostly by bad choices and that islanders are being affected “for...
Authors
Dennis Hubbard, Eberhard Gischler, Peter Davies, Lucien Montaggioni, Gilbert Camoin, Wolf-Christian Dullo, Curt D. Storlazzi, Michael E. Field, Charles Fletcher, Eric E. Grossman, C. Sheppard, Halard Lescinsky, Douglas Fenner, John McManus, Sander Scheffers
Mount Baker lahars and debris flows, ancient, modern, and future Mount Baker lahars and debris flows, ancient, modern, and future
The Middle Fork Nooksack River drains the southwestern slopes of the active Mount Baker stratovolcano in northwest Washington State. The river enters Bellingham Bay at a growing delta 98 km to the west. Various types of debris flows have descended the river, generated by volcano collapse or eruption (lahars), glacial outburst floods, and moraine landslides. Initial deposition of sediment...
Authors
David S. Tucker, Kevin M. Scott, Eric E. Grossman, Scott Linneman