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Two-way Travel Time (TWTT) In Snowpack, Derived from Software-defined Radar Data Collected by Small, Uncrewed Aircraft Systems (sUAS) in Colorado, 2022-25. Two-way Travel Time (TWTT) In Snowpack, Derived from Software-defined Radar Data Collected by Small, Uncrewed Aircraft Systems (sUAS) in Colorado, 2022-25.
These datasets were collected by a ground penetrating radar unit installed on small Uncrewed Aircraft Systems (sUAS). Data include the two-way travel time (TWTT) for the ground surface (distance between the snow-ground interface and sUAS) and the calculated snow depth. The snow depth TWTT is defined as the time duration in nanoseconds that the electromagnetic wave takes to travel from...
Cyanotoxins in the California Sacramento-San Joaquin Delta: Whole Water Cyanotoxin Samples Cyanotoxins in the California Sacramento-San Joaquin Delta: Whole Water Cyanotoxin Samples
This dataset is comprised of cyanotoxin concentrations from whole water cyanotoxin samples collected at water quality stations in the Sacramento-San Joaquin Delta, beginning in 2020. Cyanotoxin congeners were measured from whole water cyanotoxin samples within the cyanotoxin classes: microcystins, anatoxins, cylindrospermopsins, saxitoxins, anabaenopeptins, and nodularin. Concentrations...
Multiphase simulations of CO2 injectivity with and without brine extraction constrained by brine reinjectivity to optimize CO2 storage in the Illinois Basin Multiphase simulations of CO2 injectivity with and without brine extraction constrained by brine reinjectivity to optimize CO2 storage in the Illinois Basin
We developed a methodology to estimate maximum CO2 injection rates in subsurface layers across wide geographic areas using inverse modeling-based optimization techniques. We first defined geographic areas where groundwater was too saline to meet the standard for drinking water and where sufficient confining units existed above and below the injection layers. We then assumed concurrent...
Field photographs of landslides triggered by the February 2023 Kahramanmaraş, Türkiye earthquake sequence Field photographs of landslides triggered by the February 2023 Kahramanmaraş, Türkiye earthquake sequence
This dataset contains 212 geotagged photographs documenting landslides and other ground failure triggered by the February 2023 Kahramanmaraş, Türkiye earthquake sequence. The photographs were primarily taken by USGS scientists during field reconnaissance conducted with Turkish colleagues from 10-20 June 2023. The primary objective of the reconnaissance was to identify and investigate...
Estimated Median Riverbed Grain Size (D50) throughout the Willamette River Basin, Oregon Estimated Median Riverbed Grain Size (D50) throughout the Willamette River Basin, Oregon
Riverbed grain-size is an important indicator of geomorphic and ecological processes and conditions, as it provides a key building block for channel form and benthic aquatic habitats. Understanding the distribution of riverbed sediment throughout a basin can help inform a variety of river and ecosystem management questions. This dataset provides estimates of median riverbed grain-sizes...
Inset models used to evaluate the effects of layering configuration on model calibration from 1900 to 2018, and assess managed aquifer recharge near Shellmound, Mississippi, from 2019 to 2050 Inset models used to evaluate the effects of layering configuration on model calibration from 1900 to 2018, and assess managed aquifer recharge near Shellmound, Mississippi, from 2019 to 2050
The U.S. Geological Survey (USGS), in cooperation with the Mississippi Department of Environmental Quality (MDEQ), have developed a high-resolution inset groundwater flow model for the Mississippi River delta as part of an interdisciplinary collaboration, coordinated by the Mississippi Alluvial Plain (MAP) project to provide a tool that stakeholders can use to support water resources...