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Luminescence, Radiocarbon, and Pollen data for a Geomorphic Investigation of the Chalk Hill Site, Northern Rodgers Creek Fault near Windsor, California Luminescence, Radiocarbon, and Pollen data for a Geomorphic Investigation of the Chalk Hill Site, Northern Rodgers Creek Fault near Windsor, California
Data release containing luminescence data for five samples, radiocarbon data for six samples, and one pollen count associated with three paleoseismic trenches at the Chalk Hill site on the northern section of the Rodgers Creek Fault, part of the dextral San Andreas fault system in northern California. We document at least three active fault strands of the northern Rodgers Creek Fault...
2016-2026 Annual Net Primary Production (ANPP) mapping of Badlands National Park 2016-2026 Annual Net Primary Production (ANPP) mapping of Badlands National Park
Annual Aboveground Net Primary Production (ANPP) is the net aboveground primary production in a given area in a calendar year. As such, it is a key metric of ecosystem health, carbon cycling, and the amount of energy available to herbivores. We model ANPP for Badlands National Park and surrounding region by combining field-measured herbaceous biomass data, Harmonized Landsat Sentinel...
Landsat cloud masks in western South Dakota Landsat cloud masks in western South Dakota
This dataset contains masks for six Landsat scenes in the northern U.S. Great Plains. Masks were created manually to enable analysis of the entire available time series (April-October, 1972-2015). Automatic cloud masking was used as a starting point, with data from the Fmask masking algorithm available for reference. Automatic masks were then edited by hand (by the author) to reduce...
High-resolution mapping survey and vertical profiles of water quality, nitrate, and chlorophyll fluorescence in the lower Sacramento River (California, USA) High-resolution mapping survey and vertical profiles of water quality, nitrate, and chlorophyll fluorescence in the lower Sacramento River (California, USA)
The Sacramento River supplies most of the freshwater to the Sacramento-San Joaquin Delta (Delta). Phytoplankton are an important food source for zooplankton and pelagic fish in the Delta. Using a boat-based flow-through system, water quality parameters were mapped along the Sacramento River on August 11, 2025. The mapping began at Tisdale Weir, north of Sacramento, and extended...
Historical and Future Projections of Spring Phenology and False Springs in the South Central United States (1981 - 2099) Historical and Future Projections of Spring Phenology and False Springs in the South Central United States (1981 - 2099)
The dataset contains historical simulations and future projections of multiple variables from the extended spring indices (SIx) and (false spring exposure indices). The SIx variables included are the first leaf index (FLI), first bloom index (FBI), damage index (DMG), and day of last freeze in the spring (lastfreeze). The false spring indices include an indicator for early or late false...
Landslide susceptibility and shaded-relief data for the Utuado Municipio, Puerto Rico Landslide susceptibility and shaded-relief data for the Utuado Municipio, Puerto Rico
This data release provides basemap and landslide susceptibility raster data as described in Brien, D.L., Reid, M.E., Baum, R.L., Schulz, W.H., Cronkite-Ratcliff, C., Tello, M.J., and Perkins, J.P., 2026, Map depicting susceptibility to landslide hazards triggered by prolonged intense rainfall, Utuado Municipio, Puerto Rico: U.S. Geological Survey Scientific Investigations Map 3546, 1...
Landslide susceptibility and shaded-relief data for the Lares Municipio, Puerto Rico Landslide susceptibility and shaded-relief data for the Lares Municipio, Puerto Rico
This data release provides basemap and landslide susceptibility raster data as described in Schulz, W.H., Reid, M.E., Baum, R.L., Brien, D.L., Cronkite-Ratcliff, C., Tello, M.J., and Perkins, J.P., 2026, Map depicting locations susceptible to landslide hazards triggered by prolonged intense rainfall, Lares Municipio, Puerto Rico: U.S. Geological Survey Scientific Investigations Map 3558...
Landslide susceptibility and shaded-relief data for the Naranjito Municipio, Puerto Rico Landslide susceptibility and shaded-relief data for the Naranjito Municipio, Puerto Rico
This data release provides basemap and landslide susceptibility raster data as described in Reid, M.E., Baum, R.L., Brien, D.L., Schulz, W.H., Cronkite-Ratcliff, C., Tello, M.J., and Perkins, J.P., 2026, Map depicting locations susceptible to landslide hazards triggered by prolonged intense rainfall, Naranjito Municipio, Puerto Rico: U.S. Geological Survey Scientific Investigations Map...
Meteorological, seawater temperature, and current velocity data, from Ofu, American Samoa, 2020 Meteorological, seawater temperature, and current velocity data, from Ofu, American Samoa, 2020
Time series data of meteorological and oceanographic data (temperature & single-point currents) from the southern reef of Ofu, American Samoa, in support of a study on submarine groundwater discharge (SGD) dynamics on this reef within the National Park of American Samoa’s (NPSA) Ofu Unit. In January 2020, USGS scientists, in collaboration with NPSA, initiated an extensive field study on...
Data supporting investigations of lodgepole pine tree mortality in the Upper Geyser Basin, Yellowstone National Park Data supporting investigations of lodgepole pine tree mortality in the Upper Geyser Basin, Yellowstone National Park
More than half of Earth’s natural geysers are concentrated in Yellowstone National Park, mostly in the Upper Geyser Basin. Data were collected to support a study investigating the causal mechanisms linking geyser eruptions to lodgepole pine tree mortality and growth declines near Grand and Riverside Geysers in the Upper Geyser Basin. At these locations, growth-impacted and dead lodgepole...
Luminescence Data for Holocene and Late Pleistocene surface faulting, Monument Hill fault, Red Rock Valley, southwest Montana Luminescence Data for Holocene and Late Pleistocene surface faulting, Monument Hill fault, Red Rock Valley, southwest Montana
This data release contains luminescence data associated with 10 samples collected to accompany detailed geomorphic mapping and interpretations of two paleoseismic trenches along the Monument Hill fault, a northwest-striking fault bounding the eastern Red Rock Valley in southwestern Montana. These optically stimulated luminescence ages, between >80 and 8 ka, provide new information to...
Using wildfire tracer molecules to investigate the role of eolian dust and aerosols on pedogenesis and watershed chemistry in the Colorado Front Range Using wildfire tracer molecules to investigate the role of eolian dust and aerosols on pedogenesis and watershed chemistry in the Colorado Front Range
This data release compiles concentrations of biomass-burning biomarkers, including the monosaccharide anhydride levoglucosan and its stereoisomers mannosan and galactosan, measured in water samples collected during the summer of 2018 in the Green Lakes Valley (GLV) watershed of the Colorado Front Range (Table_1_Site_Locations.csv and Table_2_Constituents_Analyzed.csv). Sampling sites are...