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Silicified wood from around Old Faithful Geyser, Yellowstone National Park Silicified wood from around Old Faithful Geyser, Yellowstone National Park
Old Faithful Geyser in the Upper Geyser Basin of Yellowstone National Park is one of the best studied geysers in the world. Under research permit YELL-SCI-8030, samples from 13 silicified tree remnants were collected adjacent to the Old Faithful Geyser cone in April and November 2019. The silicified wood samples were dated using the radiocarbon (14C) method and were analyzed by scanning...
At-site flood frequency for 139 urban streamgages in Tennessee and parts of Alabama, Georgia, Mississippi, North Carolina, and South Carolina using data through water year 2022 At-site flood frequency for 139 urban streamgages in Tennessee and parts of Alabama, Georgia, Mississippi, North Carolina, and South Carolina using data through water year 2022
This dataset contains site information and results of flood-frequency analysis for 139 urban streamflow gaging stations (streamgages) operated by the U.S. Geological Survey (USGS) in Tennessee and parts of Alabama, Georgia, Mississippi, North Carolina, and South Carolina. Developed imperviousness in the basins, based on the 2011 National Land Cover Database, was at least 10 percent...
Water and gas chemistry data from wells and hot springs in the Western USA, 1930 – 2006 Water and gas chemistry data from wells and hot springs in the Western USA, 1930 – 2006
Historical water and gas chemistry data from geothermal areas are important for detecting long-term patterns, informing geothermal energy exploration, development, and use, and for contextualizing more recent data. The U.S. Geological survey has published water and gas chemistry data from geothermal areas in the western United States, which is primarily available as scanned PDF files...
Ground Penetrating Radar and Global Positioning System Data collected in 2021 from Pinellas County Barrier Islands, Florida Ground Penetrating Radar and Global Positioning System Data collected in 2021 from Pinellas County Barrier Islands, Florida
In 2021, scientists from the USGS St. Petersburg Coastal and Marine Science Center (SPCMSC) conducted ground penetrating radar (GPR) and sediment sampling surveys on barrier islands located along the central Florida (FL) Gulf Coast (CFGC), Pinellas County, FL. This study investigated the past evolution of the CFGC from field sites at Anclote Key, Caladesi and Honeymoon Islands, and Fort...
Water level, water temperature, and specific conductance data collected during natural gradient tests in observation wells set in the upper transmissive zone of the Ogallala Aquifer, North East 2nd Street Superfund Site, Happy, Texas, 2023 Water level, water temperature, and specific conductance data collected during natural gradient tests in observation wells set in the upper transmissive zone of the Ogallala Aquifer, North East 2nd Street Superfund Site, Happy, Texas, 2023
Water level, water temperature, and specific conductance data were collected during natural gradient tests on six observation wells screened in the upper transmissive zone of the Ogallala aquifer at the North East 2nd Street Superfund site in Happy, Texas, from November 6-13, 2023. Tests involved gravity draining 100-160 gallons of a low-concentration salt-spiked solution with an...
MODFLOW models for the simulation of groundwater-flow dynamics in the U.S. Northern High Plains driven by multi-model estimates of surficial aquifer recharge. MODFLOW models for the simulation of groundwater-flow dynamics in the U.S. Northern High Plains driven by multi-model estimates of surficial aquifer recharge.
There is a growing interest in incorporating higher-resolution groundwater modeling within the framework of large-scale land surface models (LSMs), including new processes such as three- dimensional flow, variable soil saturation, and surface water/groundwater interactions. Conversely, complex groundwater models (e.g., the U.S. Geological Survey Groundwater-Flow Model, MODFLOW) often use...