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Previous work performed as part of the USGS Holocene Synthesis project illuminated complex centennial-scale patterns of drought and wetter-than-average conditions across the North American continent interior during the past two millennia, where paleorecord data coverage is sparse

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https://www.usgs.gov/centers/florence-bascom-geoscience-center/science/natural-drought-and-flood-histories-lacustrine

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https://www.usgs.gov/programs/ecosystems-land-change-science-program/science/natural-drought-and-flood-histories

Active Previous work performed as part of the USGS Holocene Synthesis project illuminated complex centennial-scale patterns of drought and wetter-than-average conditions across the North American continent interior during the past two millennia, where paleorecord data coverage is sparse

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https://www.usgs.gov/programs/environmental-health-program/science/synthesis-mercury-distribution-and-bioaccumulation

Photo Credit: Joshua Ackerman, USGS The environmental health risk of Hg is strongly associated with landscape-scale processes that facilitate the conversion of inorganic Hg to methylmercury (MeHg)

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https://www.usgs.gov/centers/colorado-water-science-center/science/water-energy-and-biogeochemical-budgets-webb-loch

Analyses of temporal and spatial variations in the depth and water content of seasonal snowpacks was another area of extensive research at the Loch Vale WEBB site