Skip to main content
U.S. flag

An official website of the United States government

2022 Supplemental Appropriations Activities

By Supplemental Appropriations for Disaster Recovery Activities

The Extending Government Funding and Delivering Emergency Assistance Act (Public Law 117-43) was enacted on September 30, 2021. The USGS received $26.3 million in supplemental funding to support direct recovery and rebuilding decisions in areas affected by declared disasters—earthquakes, wildfires, hurricanes, and floods—that occurred between 2019 and 2021.

Media
FY22 Supplemental Appropriations to USGS
Sources/Usage: Public Domain. View Media Details

USGS activities funded under the Extending Government Funding and Delivering Emergency Assistance Act include:

 

 
 

 

 
 
 

Related

mountainous valley with burn scar in foreground and person near an instrument with a solar panel

Postfire Landslide Monitoring Station: "Chambers" (2021 Dixie Fire) near Belden, CA

Wildfire can increase landslide susceptibility in mountainous terrain. The USGS maintains postfire landslide monitoring stations to track hillslope hydrologic conditions in the years following fire.
By
Natural Hazards Mission Area, Landslide Hazards Program, Supplemental Appropriations for Disaster Recovery Activities
Postfire Landslide Monitoring Station: "Chambers" (2021 Dixie Fire) near Belden, CA

Postfire Landslide Monitoring Station: "Chambers" (2021 Dixie Fire) near Belden, CA

Wildfire can increase landslide susceptibility in mountainous terrain. The USGS maintains postfire landslide monitoring stations to track hillslope hydrologic conditions in the years following fire.
Learn More
mountain tops with burn scars, and landslide instrument in foreground

Postfire Landslide Monitoring Station: "Chips" (2021 Dixie Fire) near Belden, CA

Wildfire can increase landslide susceptibility in mountainous terrain. The USGS maintains postfire landslide monitoring stations to track hillslope hydrologic conditions in the years following fire.
By
Natural Hazards Mission Area, Landslide Hazards Program, Supplemental Appropriations for Disaster Recovery Activities
Postfire Landslide Monitoring Station: "Chips" (2021 Dixie Fire) near Belden, CA

Postfire Landslide Monitoring Station: "Chips" (2021 Dixie Fire) near Belden, CA

Wildfire can increase landslide susceptibility in mountainous terrain. The USGS maintains postfire landslide monitoring stations to track hillslope hydrologic conditions in the years following fire.
Learn More
mountain tops with burn scars, and landslide instrument in foreground

"Chambers" - Recent Conditions

Recent Monitoring Data
By
Natural Hazards Mission Area, Landslide Hazards Program, Supplemental Appropriations for Disaster Recovery Activities
"Chambers" - Recent Conditions

"Chambers" - Recent Conditions

Recent Monitoring Data
Learn More
mountainous valley with burn scar in foreground and person near an instrument with a solar panel

"Chips" - Recent Conditions

Recent Monitoring Data
By
Natural Hazards Mission Area, Landslide Hazards Program
"Chips" - Recent Conditions

"Chips" - Recent Conditions

Recent Monitoring Data
Learn More

Sediment Data From Surface Samples and Sand Augers Collected in 2023 From the Northern Chandeleur Islands, Louisiana Sediment Data From Surface Samples and Sand Augers Collected in 2023 From the Northern Chandeleur Islands, Louisiana

In 2023, scientists from the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center (USGS SPCMSC) conducted a sediment sampling survey at the northern Chandeleur Islands, Louisiana. Funded by the Extending Government Funding and Delivering Emergency Assistance Act (Public Law 117-43) enacted on September 30, 2021, these data complement sediment data from samples...
By
St. Petersburg Coastal and Marine Science Center

Inventory of debris flows in burned (2020-2022) and unburned (1995-2020) areas in the western Cascade Range of Oregon Inventory of debris flows in burned (2020-2022) and unburned (1995-2020) areas in the western Cascade Range of Oregon

This data release contains two debris-flow inventories summarizing observations from burned and unburned areas in the western Cascade Range of Oregon (OR). The burned inventory focuses on debris flows that occurred during the first two years after the 2020 Archie Creek, Holiday Farm, Beachie Creek/Lionshead, and Riverside fires (OR_field_observations.csv). The unburned inventory (1995...
By
Landslide Hazards Program, Supplemental Appropriations for Disaster Recovery Activities

Bathymetry and Acoustic Backscatter data for Jenkinson Lake, California collected during three USGS field activities, 2022-604-FA, 2022-649-FA, and 2023-634-FA Bathymetry and Acoustic Backscatter data for Jenkinson Lake, California collected during three USGS field activities, 2022-604-FA, 2022-649-FA, and 2023-634-FA

Bathymetry and acoustic-backscatter data were collected during three separate SWATHPlus surveys of Jenkinson Lake, California to determine any impacts on the lake floor following the 2021 Caldor fire. Data were collected and processed by the U.S. Geological Survey (USGS), Pacific Coastal and Marine Science Center (PCMSC) with fieldwork activity numbers 2022-604-FA (January 2022), 2022...
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities

Digital Surface Models and orthomosaic images from UAS surveys of Jenkinson Lake, El Dorado County, CA Digital Surface Models and orthomosaic images from UAS surveys of Jenkinson Lake, El Dorado County, CA

This data release presents Digital Surface Models (DSM) and orthomosaic images derived from uncrewed aerial system (UAS) surveys conducted at Jenkinson Lake in El Dorado County, California. The surveys were conducted to perform repeat structure-from-motion topographic mapping at the upper end of the reservoir, near the inlets of Sly Park Creek and Hazel Creek, with the purpose of...
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities

Compilation of runoff-generated debris-flow inventories for 18 fires across Arizona, California, Colorado, New Mexico, Utah, and Washington, USA Compilation of runoff-generated debris-flow inventories for 18 fires across Arizona, California, Colorado, New Mexico, Utah, and Washington, USA

Description This data release is an inventory of runoff-generated postfire debris flows compiled from 18 burn areas across six western U.S. states. Debris-flow data from the following fires are included: Arizona: 2019 Museum, 2021 Flag, and 2022 Pipeline Fires California: 2014 Silverado, 2015 Valley, 2019 Briceburg, 2020 Dolan, 2020 El Dorado, 2020 Lake, and 2021 Dixie Fires Colorado...
By
Landslide Hazards Program, Geologic Hazards Science Center, Supplemental Appropriations for Disaster Recovery Activities

Chirp Sub-Bottom Profile Geophysical Data Collected in 2023 From the Chandeleur Islands, Louisiana Chirp Sub-Bottom Profile Geophysical Data Collected in 2023 From the Chandeleur Islands, Louisiana

As part of the 2022 Disaster Supplemental project, scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center (SPCMSC) conducted a nearshore geophysical survey to map the shoreface and inner shelf, as well as characterize stratigraphy near the Chandeleur Islands, Louisiana (LA) in June and August 2023. The purpose of this study was to conduct a...
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities

Compilation of runoff-generated debris-flow inventories for 17 fires across Arizona, California, Colorado, New Mexico, and Washington, USA Compilation of runoff-generated debris-flow inventories for 17 fires across Arizona, California, Colorado, New Mexico, and Washington, USA

Summary This data release is an inventory of runoff-generated postfire debris flows compiled from 17 burn areas across five western U.S. states. Debris-flow data from the following fires are included: Arizona: 2017 Pinal and 2019 Woodbury Fires California: 2020 Apple, 2020 Bond, 2015 Butte, 2020 El Dorado, 2014 El Portal, 2018 Ferguson, 2016 Fish (San Gabriel Complex), 2011 Motor, and...
By
Landslide Hazards Program, Geologic Hazards Science Center, Supplemental Appropriations for Disaster Recovery Activities

Field-verified inventory of postfire debris flows for the 2021 Dixie Fire following a 23-25 October 2021 atmospheric river storm and 12 June 2022 thunderstorm Field-verified inventory of postfire debris flows for the 2021 Dixie Fire following a 23-25 October 2021 atmospheric river storm and 12 June 2022 thunderstorm

Summary This data release is a field-verified inventory of postfire debris flows for the 2021 Dixie Fire following a 23-25 October 2021 atmospheric river storm and 12 June 2022 thunderstorm. The “README.txt” file describes the fields for the “Inventory.csv” file. The “Chambers” and “Chips” rain gage data referenced in the inventory are included as: “Chambers-Oct2021-Storm.csv”, “Chambers...
By
Geologic Hazards Science Center, Supplemental Appropriations for Disaster Recovery Activities

Rain measurements in the Dolan Fire Area, Los Padres National Forest, California, 2021 to 2022 Rain measurements in the Dolan Fire Area, Los Padres National Forest, California, 2021 to 2022

Rainfall measurements were collected in and near the Dolan Fire burn area, Los Padres National Forest, California. The Dolan Fire ignited on August 18, 2020. By the time of full containment on December 31, 2020, the fire had burned 518 km2 (128,050 acres) in Monterey County. Post-fire debris flows occurred in many watersheds burned by the Dolan Fire during the first post-fire wet season...
By
Pacific Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities

Coastal Land-Cover and Feature Datasets Extracted from Landsat Satellite Imagery, Northern Chandeleur Islands, Louisiana Coastal Land-Cover and Feature Datasets Extracted from Landsat Satellite Imagery, Northern Chandeleur Islands, Louisiana

This data release serves as an archive of coastal land-cover and feature datasets derived from Landsat satellite imagery at the northern Chandeleur Islands, Louisiana. To minimize effects of tidal water-level variations, only images that were collected within 2 hours of predicted low tide or that were collected on a rising tide with predicted water levels less than mean sea level at time...
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

National Assessment of Hurricane-Induced Coastal Erosion Hazards National Assessment of Hurricane-Induced Coastal Erosion Hazards

These datasets contain information on the probabilities of hurricane-induced erosion (collision, inundation, and overwash) for each 1-km section of the United States sandy open-ocean coastline for category 1-5 hurricanes. The analysis is based on a storm-impact scaling model (Sallenger, 2000; https://www.jstor.org/stable/4300099) that uses observations of beach morphology combined with
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities, Gulf of America

Storm-Induced Coastal Change Forecasts: Archive of Individual Storm Events Storm-Induced Coastal Change Forecasts: Archive of Individual Storm Events

These data sets contain information on the probabilities of storm-induced erosion (collision, inundation and overwash) on sandy beaches along the U.S. Gulf and Atlantic coasts during real-time peak forecast conditions. The analysis is based on a storm-impact scaling model that uses observations of beach morphology combined with sophisticated hydrodynamic models to predict how the coast...
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities, Gulf of America

Quantifying post-fire live tree presence and spatial variation using Sentinel-2 time series Quantifying post-fire live tree presence and spatial variation using Sentinel-2 time series

Accurate mapping of post-fire surviving trees is important for tracking forest recovery and prioritizing land management decisions. Satellite-based remote sensing is an effective method to assess post-fire forest conditions. Traditionally, differenced satellite-derived burn severity indices are computed by differencing one year pre- and post-fire spectral reflectance values. Differenced...
Authors
Saba J. Saberi, Phillip J. van Mantgem, Micah C. Wright, Christopher Y.S. Wong, Andrew M. Latimer, Derek J.N. Young
By
Ecosystems Mission Area, Western Ecological Research Center (WERC)

Present and future coastal flooding hazard for Long Island, NY and Long Island Sound (NY/CT), USA Present and future coastal flooding hazard for Long Island, NY and Long Island Sound (NY/CT), USA

Coastal flooding and the associated damages due to storms are increasing with sea level rise around the world, with regional variability in the severity of impacts., Researchers and resource managers need to better understand and predict the future shifts in coastal flooding due to these processes to plan for resilient and sustainable communities. Here we present an analysis of long-term
Authors
Salme Ellen Cook, Liv M. Herdman
By
New York Water Science Center

A spatial analysis of the groundwater emergence flood hazard in Long Island, New York and near coastal areas surrounding Long Island Sound in New York, Connecticut, and Rhode Island A spatial analysis of the groundwater emergence flood hazard in Long Island, New York and near coastal areas surrounding Long Island Sound in New York, Connecticut, and Rhode Island

Long Island, New York and near coastal areas surrounding Long Island Sound are densely populated and, like other coastal areas, are susceptible to flooding from several potential sources, including stormwater from precipitation events, tidal flooding and storm surge, and groundwater inundation or groundwater emergence flooding. The latter refers to the intersection of a rising water...
Authors
Kristina Kirkyla Masterson, Robert J. Welk, Janet R. Barclay, Kalle Jahn, Liv M. Herdman
By
New York Water Science Center

Cascading consequences and interventions for hazards after wildfire in Okanogan County, Washington Cascading consequences and interventions for hazards after wildfire in Okanogan County, Washington

This report details the application of the chains of consequences method within the postfire hazard context after the 2021 Cedar Creek and Muckamuck Fires around Okanogan County, Washington. The U.S. Geological Survey Social and Economic Analysis branch convened 20 stakeholders with content- and context-specific knowledge related to these fires and their postfire hazards in an April 2023...
Authors
Briar H. Goldwyn, James R. Meldrum, Rudy Schuster
By
Ecosystems Mission Area, Fort Collins Science Center

Rainfall thresholds for postfire debris-flow initiation vary with short-duration rainfall climatology Rainfall thresholds for postfire debris-flow initiation vary with short-duration rainfall climatology

The size, frequency, and geographic scope of severe wildfires are expanding across the globe, including in the Western United States. Recently burned steeplands have an increased likelihood of debris flows, which pose hazards to downstream communities. The conditions for postfire debris-flow initiation are commonly expressed as rainfall intensity-duration thresholds, which can be...
Authors
David B. Cavagnaro, Scott W. McCoy, Donald N. Lindsay, Luke A. McGuire, Jason W. Kean, Daniel T. Trugman
By
Landslide Hazards Program, Geologic Hazards Science Center

Assessment of western Oregon debris-flow hazards in burned and unburned environments Assessment of western Oregon debris-flow hazards in burned and unburned environments

In the steep and mountainous environment of western Oregon, debris flows pose a considerable threat to property, infrastructure and life. Wildfire is commonly known to increase the susceptibility of steep slopes to debris flows, but the extent of this process in the western Cascades is not well understood. The US Geological Survey (USGS) currently estimates postfire debris-flow...
Authors
Brittany Danielle Selander, Nancy C. Calhoun, William Burns, Jason W. Kean, Francis K. Rengers
By
Landslide Hazards Program, Geologic Hazards Science Center

Post-fire sediment yield from a western Sierra Nevada watershed burned by the 2021 Caldor Fire Post-fire sediment yield from a western Sierra Nevada watershed burned by the 2021 Caldor Fire

Watershed sediment yield commonly increases after wildfire, often causing negative impacts to downstream infrastructure and water resources. Post-fire erosion is important to understand and quantify because it is increasingly placing water supplies, habitat, communities, and infrastructure at risk as fire regimes intensify in a warming climate. However, measurements of post-fire sediment
Authors
Amy E. East, Joshua B. Logan, Peter Dartnell, Helen Willemien Dow, Donald N. Lindsay, David B. Cavagnaro
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, Wildland Fire Science

Postfire sediment mobilization and its downstream implications across California, 1984 – 2021 Postfire sediment mobilization and its downstream implications across California, 1984 – 2021

Fire facilitates erosion through changes in vegetation and soil, with major postfire erosion commonly occurring even with moderate rainfall. As climate warms, the western United States (U.S.) is experiencing an intensifying fire regime and increasing frequency of extreme rain. We evaluated whether these hydroclimatic changes are evident in patterns of postfire erosion by modeling...
Authors
Helen Willemien Dow, Amy E. East, Joel B. Sankey, Jonathan A. Warrick, Jaime Kostelnik, Donald N. Lindsay, Jason W. Kean
By
Ecosystems Mission Area, Natural Hazards Mission Area, Landslide Hazards Program, Geologic Hazards Science Center, Pacific Coastal and Marine Science Center, Southwest Biological Science Center, Supplemental Appropriations for Disaster Recovery Activities, Wildland Fire Science

Post-fire sediment yield from a central California watershed: Field measurements and validation of the WEPP model Post-fire sediment yield from a central California watershed: Field measurements and validation of the WEPP model

In a warming climate, an intensifying fire regime and higher likelihood of extreme rain are expected to increase watershed sediment yield in many regions. Understanding regional variability in landscape response to fire and post-fire rainfall is essential for managing water resources and infrastructure. We measured sediment yield resulting from sequential wildfire and extreme rain and...
Authors
Amy E. East, Joshua B. Logan, Helen Willemien Dow, Douglas P. Smith, Pat Iampietro, Jonathan A. Warrick, Thomas Lorenson, Leticia Hallas, Benjamin Kozlowicz
By
Pacific Coastal and Marine Science Center, Wildland Fire Science

How long do runoff-generated debris-flow hazards persist after wildfire? How long do runoff-generated debris-flow hazards persist after wildfire?

Runoff-generated debris flows are a potentially destructive and deadly response to wildfire until sufficient vegetation and soil-hydraulic recovery have reduced susceptibility to the hazard. Elevated debris-flow susceptibility may persist for several years, but the controls on the timespan of the susceptible period are poorly understood. To evaluate the connection between vegetation...
Authors
Andrew Paul Graber, Matthew A. Thomas, Jason W. Kean
By
Natural Hazards Mission Area, Landslide Hazards Program, Geologic Hazards Science Center, Supplemental Appropriations for Disaster Recovery Activities

The rainfall intensity-duration control of debris flows after wildfire The rainfall intensity-duration control of debris flows after wildfire

Increased wildfire activity in the western United States has exposed regional gaps in our understanding of postfire debris-flow generation. To address this problem, we characterized flows in an unstudied area to test the rainfall intensity-duration control of the hazard. Our rainfall measurements and field observations from the northern Sierra Nevada (California, USA) show that debris...
Authors
Matthew A. Thomas, Donald N. Lindsay, David B. Cavagnaro, Jason W. Kean, Scott W. McCoy, Andrew Paul Graber
By
Natural Hazards Mission Area, Landslide Hazards Program, Geologic Hazards Science Center, Supplemental Appropriations for Disaster Recovery Activities

2022 Emergency Assistance Act — USGS recovery activities 2022 Emergency Assistance Act — USGS recovery activities

The Extending Government Funding and Delivering Emergency Assistance Act (Public Law 117-43) was enacted on September 30, 2021. The U.S. Geological Survey received $26.3 million in supplemental funding to repair and replace facilities and equipment, collect high-resolution elevation data, and complete scientific assessments to support direct recovery and rebuilding decisions in areas...
Authors
Jo Ellen Hinck, Joseph Stachyra
By
Ecosystems Mission Area, Columbia Environmental Research Center, Supplemental Appropriations for Disaster Recovery Activities

Hurricane Ida: USGS Response in Pennsylvania to September 1-2, 2021, Flooding Related to Remnants of Hurricane Ida Hurricane Ida: USGS Response in Pennsylvania to September 1-2, 2021, Flooding Related to Remnants of Hurricane Ida

This geonarrative is an interactive online presentation of the USGS Pennsylvania Water Science Center's data collection efforts related to Hurricane Ida. This geonarrative includes a summary of the storm in Pennsylvania, USGS data collection methods, embedded interactive maps of flood extents in 5 southeastern Pennsylvania localities, and visual depictions of the storm’s impact across the state.
By
Pennsylvania Water Science Center, Supplemental Appropriations for Disaster Recovery Activities

pfdf 1.1.0 pfdf 1.1.0

This release add the following major features to pfdf: * Comprehensive documentation * Raster preprocessing * Parallelization options when locating outlet basins * Windowed raster reading The release also provides minor improvements, as follows: * Raster data/nodata masks, * Improved model broadcasting options, * The Segments.in_mask and Segments.in_perimeter methods
By
Geologic Hazards Science Center, Supplemental Appropriations for Disaster Recovery Activities

Related

mountainous valley with burn scar in foreground and person near an instrument with a solar panel

Postfire Landslide Monitoring Station: "Chambers" (2021 Dixie Fire) near Belden, CA

Wildfire can increase landslide susceptibility in mountainous terrain. The USGS maintains postfire landslide monitoring stations to track hillslope hydrologic conditions in the years following fire.
By
Natural Hazards Mission Area, Landslide Hazards Program, Supplemental Appropriations for Disaster Recovery Activities
Postfire Landslide Monitoring Station: "Chambers" (2021 Dixie Fire) near Belden, CA

Postfire Landslide Monitoring Station: "Chambers" (2021 Dixie Fire) near Belden, CA

Wildfire can increase landslide susceptibility in mountainous terrain. The USGS maintains postfire landslide monitoring stations to track hillslope hydrologic conditions in the years following fire.
Learn More
mountain tops with burn scars, and landslide instrument in foreground

Postfire Landslide Monitoring Station: "Chips" (2021 Dixie Fire) near Belden, CA

Wildfire can increase landslide susceptibility in mountainous terrain. The USGS maintains postfire landslide monitoring stations to track hillslope hydrologic conditions in the years following fire.
By
Natural Hazards Mission Area, Landslide Hazards Program, Supplemental Appropriations for Disaster Recovery Activities
Postfire Landslide Monitoring Station: "Chips" (2021 Dixie Fire) near Belden, CA

Postfire Landslide Monitoring Station: "Chips" (2021 Dixie Fire) near Belden, CA

Wildfire can increase landslide susceptibility in mountainous terrain. The USGS maintains postfire landslide monitoring stations to track hillslope hydrologic conditions in the years following fire.
Learn More
mountain tops with burn scars, and landslide instrument in foreground

"Chambers" - Recent Conditions

Recent Monitoring Data
By
Natural Hazards Mission Area, Landslide Hazards Program, Supplemental Appropriations for Disaster Recovery Activities
"Chambers" - Recent Conditions

"Chambers" - Recent Conditions

Recent Monitoring Data
Learn More
mountainous valley with burn scar in foreground and person near an instrument with a solar panel

"Chips" - Recent Conditions

Recent Monitoring Data
By
Natural Hazards Mission Area, Landslide Hazards Program
"Chips" - Recent Conditions

"Chips" - Recent Conditions

Recent Monitoring Data
Learn More

Sediment Data From Surface Samples and Sand Augers Collected in 2023 From the Northern Chandeleur Islands, Louisiana Sediment Data From Surface Samples and Sand Augers Collected in 2023 From the Northern Chandeleur Islands, Louisiana

In 2023, scientists from the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center (USGS SPCMSC) conducted a sediment sampling survey at the northern Chandeleur Islands, Louisiana. Funded by the Extending Government Funding and Delivering Emergency Assistance Act (Public Law 117-43) enacted on September 30, 2021, these data complement sediment data from samples...
By
St. Petersburg Coastal and Marine Science Center

Inventory of debris flows in burned (2020-2022) and unburned (1995-2020) areas in the western Cascade Range of Oregon Inventory of debris flows in burned (2020-2022) and unburned (1995-2020) areas in the western Cascade Range of Oregon

This data release contains two debris-flow inventories summarizing observations from burned and unburned areas in the western Cascade Range of Oregon (OR). The burned inventory focuses on debris flows that occurred during the first two years after the 2020 Archie Creek, Holiday Farm, Beachie Creek/Lionshead, and Riverside fires (OR_field_observations.csv). The unburned inventory (1995...
By
Landslide Hazards Program, Supplemental Appropriations for Disaster Recovery Activities

Bathymetry and Acoustic Backscatter data for Jenkinson Lake, California collected during three USGS field activities, 2022-604-FA, 2022-649-FA, and 2023-634-FA Bathymetry and Acoustic Backscatter data for Jenkinson Lake, California collected during three USGS field activities, 2022-604-FA, 2022-649-FA, and 2023-634-FA

Bathymetry and acoustic-backscatter data were collected during three separate SWATHPlus surveys of Jenkinson Lake, California to determine any impacts on the lake floor following the 2021 Caldor fire. Data were collected and processed by the U.S. Geological Survey (USGS), Pacific Coastal and Marine Science Center (PCMSC) with fieldwork activity numbers 2022-604-FA (January 2022), 2022...
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities

Digital Surface Models and orthomosaic images from UAS surveys of Jenkinson Lake, El Dorado County, CA Digital Surface Models and orthomosaic images from UAS surveys of Jenkinson Lake, El Dorado County, CA

This data release presents Digital Surface Models (DSM) and orthomosaic images derived from uncrewed aerial system (UAS) surveys conducted at Jenkinson Lake in El Dorado County, California. The surveys were conducted to perform repeat structure-from-motion topographic mapping at the upper end of the reservoir, near the inlets of Sly Park Creek and Hazel Creek, with the purpose of...
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities

Compilation of runoff-generated debris-flow inventories for 18 fires across Arizona, California, Colorado, New Mexico, Utah, and Washington, USA Compilation of runoff-generated debris-flow inventories for 18 fires across Arizona, California, Colorado, New Mexico, Utah, and Washington, USA

Description This data release is an inventory of runoff-generated postfire debris flows compiled from 18 burn areas across six western U.S. states. Debris-flow data from the following fires are included: Arizona: 2019 Museum, 2021 Flag, and 2022 Pipeline Fires California: 2014 Silverado, 2015 Valley, 2019 Briceburg, 2020 Dolan, 2020 El Dorado, 2020 Lake, and 2021 Dixie Fires Colorado...
By
Landslide Hazards Program, Geologic Hazards Science Center, Supplemental Appropriations for Disaster Recovery Activities

Chirp Sub-Bottom Profile Geophysical Data Collected in 2023 From the Chandeleur Islands, Louisiana Chirp Sub-Bottom Profile Geophysical Data Collected in 2023 From the Chandeleur Islands, Louisiana

As part of the 2022 Disaster Supplemental project, scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center (SPCMSC) conducted a nearshore geophysical survey to map the shoreface and inner shelf, as well as characterize stratigraphy near the Chandeleur Islands, Louisiana (LA) in June and August 2023. The purpose of this study was to conduct a...
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities

Compilation of runoff-generated debris-flow inventories for 17 fires across Arizona, California, Colorado, New Mexico, and Washington, USA Compilation of runoff-generated debris-flow inventories for 17 fires across Arizona, California, Colorado, New Mexico, and Washington, USA

Summary This data release is an inventory of runoff-generated postfire debris flows compiled from 17 burn areas across five western U.S. states. Debris-flow data from the following fires are included: Arizona: 2017 Pinal and 2019 Woodbury Fires California: 2020 Apple, 2020 Bond, 2015 Butte, 2020 El Dorado, 2014 El Portal, 2018 Ferguson, 2016 Fish (San Gabriel Complex), 2011 Motor, and...
By
Landslide Hazards Program, Geologic Hazards Science Center, Supplemental Appropriations for Disaster Recovery Activities

Field-verified inventory of postfire debris flows for the 2021 Dixie Fire following a 23-25 October 2021 atmospheric river storm and 12 June 2022 thunderstorm Field-verified inventory of postfire debris flows for the 2021 Dixie Fire following a 23-25 October 2021 atmospheric river storm and 12 June 2022 thunderstorm

Summary This data release is a field-verified inventory of postfire debris flows for the 2021 Dixie Fire following a 23-25 October 2021 atmospheric river storm and 12 June 2022 thunderstorm. The “README.txt” file describes the fields for the “Inventory.csv” file. The “Chambers” and “Chips” rain gage data referenced in the inventory are included as: “Chambers-Oct2021-Storm.csv”, “Chambers...
By
Geologic Hazards Science Center, Supplemental Appropriations for Disaster Recovery Activities

Rain measurements in the Dolan Fire Area, Los Padres National Forest, California, 2021 to 2022 Rain measurements in the Dolan Fire Area, Los Padres National Forest, California, 2021 to 2022

Rainfall measurements were collected in and near the Dolan Fire burn area, Los Padres National Forest, California. The Dolan Fire ignited on August 18, 2020. By the time of full containment on December 31, 2020, the fire had burned 518 km2 (128,050 acres) in Monterey County. Post-fire debris flows occurred in many watersheds burned by the Dolan Fire during the first post-fire wet season...
By
Pacific Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities

Coastal Land-Cover and Feature Datasets Extracted from Landsat Satellite Imagery, Northern Chandeleur Islands, Louisiana Coastal Land-Cover and Feature Datasets Extracted from Landsat Satellite Imagery, Northern Chandeleur Islands, Louisiana

This data release serves as an archive of coastal land-cover and feature datasets derived from Landsat satellite imagery at the northern Chandeleur Islands, Louisiana. To minimize effects of tidal water-level variations, only images that were collected within 2 hours of predicted low tide or that were collected on a rising tide with predicted water levels less than mean sea level at time...
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

National Assessment of Hurricane-Induced Coastal Erosion Hazards National Assessment of Hurricane-Induced Coastal Erosion Hazards

These datasets contain information on the probabilities of hurricane-induced erosion (collision, inundation, and overwash) for each 1-km section of the United States sandy open-ocean coastline for category 1-5 hurricanes. The analysis is based on a storm-impact scaling model (Sallenger, 2000; https://www.jstor.org/stable/4300099) that uses observations of beach morphology combined with
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities, Gulf of America

Storm-Induced Coastal Change Forecasts: Archive of Individual Storm Events Storm-Induced Coastal Change Forecasts: Archive of Individual Storm Events

These data sets contain information on the probabilities of storm-induced erosion (collision, inundation and overwash) on sandy beaches along the U.S. Gulf and Atlantic coasts during real-time peak forecast conditions. The analysis is based on a storm-impact scaling model that uses observations of beach morphology combined with sophisticated hydrodynamic models to predict how the coast...
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities, Gulf of America

Quantifying post-fire live tree presence and spatial variation using Sentinel-2 time series Quantifying post-fire live tree presence and spatial variation using Sentinel-2 time series

Accurate mapping of post-fire surviving trees is important for tracking forest recovery and prioritizing land management decisions. Satellite-based remote sensing is an effective method to assess post-fire forest conditions. Traditionally, differenced satellite-derived burn severity indices are computed by differencing one year pre- and post-fire spectral reflectance values. Differenced...
Authors
Saba J. Saberi, Phillip J. van Mantgem, Micah C. Wright, Christopher Y.S. Wong, Andrew M. Latimer, Derek J.N. Young
By
Ecosystems Mission Area, Western Ecological Research Center (WERC)

Present and future coastal flooding hazard for Long Island, NY and Long Island Sound (NY/CT), USA Present and future coastal flooding hazard for Long Island, NY and Long Island Sound (NY/CT), USA

Coastal flooding and the associated damages due to storms are increasing with sea level rise around the world, with regional variability in the severity of impacts., Researchers and resource managers need to better understand and predict the future shifts in coastal flooding due to these processes to plan for resilient and sustainable communities. Here we present an analysis of long-term
Authors
Salme Ellen Cook, Liv M. Herdman
By
New York Water Science Center

A spatial analysis of the groundwater emergence flood hazard in Long Island, New York and near coastal areas surrounding Long Island Sound in New York, Connecticut, and Rhode Island A spatial analysis of the groundwater emergence flood hazard in Long Island, New York and near coastal areas surrounding Long Island Sound in New York, Connecticut, and Rhode Island

Long Island, New York and near coastal areas surrounding Long Island Sound are densely populated and, like other coastal areas, are susceptible to flooding from several potential sources, including stormwater from precipitation events, tidal flooding and storm surge, and groundwater inundation or groundwater emergence flooding. The latter refers to the intersection of a rising water...
Authors
Kristina Kirkyla Masterson, Robert J. Welk, Janet R. Barclay, Kalle Jahn, Liv M. Herdman
By
New York Water Science Center

Cascading consequences and interventions for hazards after wildfire in Okanogan County, Washington Cascading consequences and interventions for hazards after wildfire in Okanogan County, Washington

This report details the application of the chains of consequences method within the postfire hazard context after the 2021 Cedar Creek and Muckamuck Fires around Okanogan County, Washington. The U.S. Geological Survey Social and Economic Analysis branch convened 20 stakeholders with content- and context-specific knowledge related to these fires and their postfire hazards in an April 2023...
Authors
Briar H. Goldwyn, James R. Meldrum, Rudy Schuster
By
Ecosystems Mission Area, Fort Collins Science Center

Rainfall thresholds for postfire debris-flow initiation vary with short-duration rainfall climatology Rainfall thresholds for postfire debris-flow initiation vary with short-duration rainfall climatology

The size, frequency, and geographic scope of severe wildfires are expanding across the globe, including in the Western United States. Recently burned steeplands have an increased likelihood of debris flows, which pose hazards to downstream communities. The conditions for postfire debris-flow initiation are commonly expressed as rainfall intensity-duration thresholds, which can be...
Authors
David B. Cavagnaro, Scott W. McCoy, Donald N. Lindsay, Luke A. McGuire, Jason W. Kean, Daniel T. Trugman
By
Landslide Hazards Program, Geologic Hazards Science Center

Assessment of western Oregon debris-flow hazards in burned and unburned environments Assessment of western Oregon debris-flow hazards in burned and unburned environments

In the steep and mountainous environment of western Oregon, debris flows pose a considerable threat to property, infrastructure and life. Wildfire is commonly known to increase the susceptibility of steep slopes to debris flows, but the extent of this process in the western Cascades is not well understood. The US Geological Survey (USGS) currently estimates postfire debris-flow...
Authors
Brittany Danielle Selander, Nancy C. Calhoun, William Burns, Jason W. Kean, Francis K. Rengers
By
Landslide Hazards Program, Geologic Hazards Science Center

Post-fire sediment yield from a western Sierra Nevada watershed burned by the 2021 Caldor Fire Post-fire sediment yield from a western Sierra Nevada watershed burned by the 2021 Caldor Fire

Watershed sediment yield commonly increases after wildfire, often causing negative impacts to downstream infrastructure and water resources. Post-fire erosion is important to understand and quantify because it is increasingly placing water supplies, habitat, communities, and infrastructure at risk as fire regimes intensify in a warming climate. However, measurements of post-fire sediment
Authors
Amy E. East, Joshua B. Logan, Peter Dartnell, Helen Willemien Dow, Donald N. Lindsay, David B. Cavagnaro
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, Wildland Fire Science

Postfire sediment mobilization and its downstream implications across California, 1984 – 2021 Postfire sediment mobilization and its downstream implications across California, 1984 – 2021

Fire facilitates erosion through changes in vegetation and soil, with major postfire erosion commonly occurring even with moderate rainfall. As climate warms, the western United States (U.S.) is experiencing an intensifying fire regime and increasing frequency of extreme rain. We evaluated whether these hydroclimatic changes are evident in patterns of postfire erosion by modeling...
Authors
Helen Willemien Dow, Amy E. East, Joel B. Sankey, Jonathan A. Warrick, Jaime Kostelnik, Donald N. Lindsay, Jason W. Kean
By
Ecosystems Mission Area, Natural Hazards Mission Area, Landslide Hazards Program, Geologic Hazards Science Center, Pacific Coastal and Marine Science Center, Southwest Biological Science Center, Supplemental Appropriations for Disaster Recovery Activities, Wildland Fire Science

Post-fire sediment yield from a central California watershed: Field measurements and validation of the WEPP model Post-fire sediment yield from a central California watershed: Field measurements and validation of the WEPP model

In a warming climate, an intensifying fire regime and higher likelihood of extreme rain are expected to increase watershed sediment yield in many regions. Understanding regional variability in landscape response to fire and post-fire rainfall is essential for managing water resources and infrastructure. We measured sediment yield resulting from sequential wildfire and extreme rain and...
Authors
Amy E. East, Joshua B. Logan, Helen Willemien Dow, Douglas P. Smith, Pat Iampietro, Jonathan A. Warrick, Thomas Lorenson, Leticia Hallas, Benjamin Kozlowicz
By
Pacific Coastal and Marine Science Center, Wildland Fire Science

How long do runoff-generated debris-flow hazards persist after wildfire? How long do runoff-generated debris-flow hazards persist after wildfire?

Runoff-generated debris flows are a potentially destructive and deadly response to wildfire until sufficient vegetation and soil-hydraulic recovery have reduced susceptibility to the hazard. Elevated debris-flow susceptibility may persist for several years, but the controls on the timespan of the susceptible period are poorly understood. To evaluate the connection between vegetation...
Authors
Andrew Paul Graber, Matthew A. Thomas, Jason W. Kean
By
Natural Hazards Mission Area, Landslide Hazards Program, Geologic Hazards Science Center, Supplemental Appropriations for Disaster Recovery Activities

The rainfall intensity-duration control of debris flows after wildfire The rainfall intensity-duration control of debris flows after wildfire

Increased wildfire activity in the western United States has exposed regional gaps in our understanding of postfire debris-flow generation. To address this problem, we characterized flows in an unstudied area to test the rainfall intensity-duration control of the hazard. Our rainfall measurements and field observations from the northern Sierra Nevada (California, USA) show that debris...
Authors
Matthew A. Thomas, Donald N. Lindsay, David B. Cavagnaro, Jason W. Kean, Scott W. McCoy, Andrew Paul Graber
By
Natural Hazards Mission Area, Landslide Hazards Program, Geologic Hazards Science Center, Supplemental Appropriations for Disaster Recovery Activities

2022 Emergency Assistance Act — USGS recovery activities 2022 Emergency Assistance Act — USGS recovery activities

The Extending Government Funding and Delivering Emergency Assistance Act (Public Law 117-43) was enacted on September 30, 2021. The U.S. Geological Survey received $26.3 million in supplemental funding to repair and replace facilities and equipment, collect high-resolution elevation data, and complete scientific assessments to support direct recovery and rebuilding decisions in areas...
Authors
Jo Ellen Hinck, Joseph Stachyra
By
Ecosystems Mission Area, Columbia Environmental Research Center, Supplemental Appropriations for Disaster Recovery Activities

Hurricane Ida: USGS Response in Pennsylvania to September 1-2, 2021, Flooding Related to Remnants of Hurricane Ida Hurricane Ida: USGS Response in Pennsylvania to September 1-2, 2021, Flooding Related to Remnants of Hurricane Ida

This geonarrative is an interactive online presentation of the USGS Pennsylvania Water Science Center's data collection efforts related to Hurricane Ida. This geonarrative includes a summary of the storm in Pennsylvania, USGS data collection methods, embedded interactive maps of flood extents in 5 southeastern Pennsylvania localities, and visual depictions of the storm’s impact across the state.
By
Pennsylvania Water Science Center, Supplemental Appropriations for Disaster Recovery Activities

pfdf 1.1.0 pfdf 1.1.0

This release add the following major features to pfdf: * Comprehensive documentation * Raster preprocessing * Parallelization options when locating outlet basins * Windowed raster reading The release also provides minor improvements, as follows: * Raster data/nodata masks, * Improved model broadcasting options, * The Segments.in_mask and Segments.in_perimeter methods
By
Geologic Hazards Science Center, Supplemental Appropriations for Disaster Recovery Activities
Was this page helpful?