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Western Geographic Science Center

The WGSC is responsible for research and applications to understand coupled human-environmental systems in the face of land change and delivering pertinent information to decision makers on the vulnerability and resilience of these systems.  WGSC scientists collaborate with partners to advance the goals of the USGS Core Science Systems and Ecosystems Mission Areas and their programs. 

News

Using Spectral Imaging to Map Vital Mudflat Microbial Life in San Francisco Bay

Understanding Wildfire Behavior Across Alaska Using Remote Sensing of Fire Intensity

Mapping Mercury in San Francisco Bay

Publications

Multi-scale spectroscopy to map intertidal microbial biofilm community and trait diversity Multi-scale spectroscopy to map intertidal microbial biofilm community and trait diversity

Intertidal microbial biofilms, or microphytobenthos, support estuarine biogeochemical cycling, the physical stability of mudflats, and food webs, particularly those of migratory shorebirds. Photosynthetic biofilms dominated by diatoms, cyanobacteria, and chlorophytes represent a significant fraction of biofilm biomass and contain pigments that can be detected with remote sensing. These...
Authors
Kristin B. Byrd, Sherry L. Palacios, Nicole Chin Taylor, Isa Woo, Stacy M Moskal, Raymond F. Kokaly, Todd M. Hoefen, John Chapman, Susan E.W. De La Cruz

Assessing causes and consequences of winter surface water dynamics in California’s Central Valley using satellite remote sensing Assessing causes and consequences of winter surface water dynamics in California’s Central Valley using satellite remote sensing

California's Central Valley is increasingly vulnerable to winter floods. A comprehensive spatial baseline of flood extents is critical for inundation analyses that can enhance future flood predictions, but cloud cover has prevented the regular observation of surface water extents with optical satellite imagery. In this study, we leveraged the daily resolution of Moderate Resolution...
Authors
Christine M. Albano, Christopher E. Soulard, Blake A. Minor, Jessica J. Walker, Britt Windsor Smith, Eric K. Waller, Michael D. Bartles, Tom Corringham, Anthony T. O'Geen, Melissa M. Rohde, Anne Wein

Linking fire radiative power to land cover, fire history, and environmental setting in Alaska, 2003–2022 Linking fire radiative power to land cover, fire history, and environmental setting in Alaska, 2003–2022

BackgroundFire radiative power (FRP) shows promise as a diagnostic and predictive indicator of fire behavior and post-fire effects in Alaska, USA.AimsTo investigate relationships between FRP, vegetation functional groups, and environmental settings in Alaska (2003–2022) under various fire history conditions.MethodsWe tested for distinctness of MODIS FRP distributions associated with...
Authors
Jessica J. Walker, Rachel A. Loehman, Britt Windsor Smith, Christopher E. Soulard

Science

Supporting energy and mineral development through successful reclamation

Federal lands of the US contain important reserves of oil, gas and other resources important for Unleashing American Energy (SO 3418). After development of these resources is complete, successfully reclaiming disturbed lands is a necessary step towards restoring wildlife habitat, forage production, and maintaining natural resources for future use. To improve reclamation outcomes on these lands and...
Supporting energy and mineral development through successful reclamation

Supporting energy and mineral development through successful reclamation

Federal lands of the US contain important reserves of oil, gas and other resources important for Unleashing American Energy (SO 3418). After development of these resources is complete, successfully reclaiming disturbed lands is a necessary step towards restoring wildlife habitat, forage production, and maintaining natural resources for future use. To improve reclamation outcomes on these lands and...
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Coastal Wetland Vulnerability to Climate Change and Sea-Level Rise: Understanding Ecological Thresholds and Ecosystem Transformations

Coastal Wetland Vulnerability to Climate Change and Sea-Level Rise: Understanding Ecological Thresholds and Ecosystem Transformations

Eighteen USGS coastal scientists from all four coasts of the conterminous United States are working together to advance the understanding of climate change and sea-level rise impacts to coastal wetlands.
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Developing General Coastal Vegetation Maps for Coastal Morphodynamic Models

The USGS is collaborating with researchers from other agencies, academia, and industry to predict coastal impacts from hurricanes. The results from this study will better inform coastal morphological change models, which will lead to improved hurricane impact projections.
Developing General Coastal Vegetation Maps for Coastal Morphodynamic Models

Developing General Coastal Vegetation Maps for Coastal Morphodynamic Models

The USGS is collaborating with researchers from other agencies, academia, and industry to predict coastal impacts from hurricanes. The results from this study will better inform coastal morphological change models, which will lead to improved hurricane impact projections.
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