Data Releases
The data collected and the techniques used by USGS scientists should conform to or reference national and international standards and protocols if they exist and when they are relevant and appropriate. For datasets of a given type, and if national or international metadata standards exist, the data are indexed with metadata that facilitates access and integration.
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Improving tailwater ecosystem metabolism estimation—Metabolism and associated environmental data from a model comparison exercise for the Colorado River tailwater below Glen Canyon Dam—2008-2014 Improving tailwater ecosystem metabolism estimation—Metabolism and associated environmental data from a model comparison exercise for the Colorado River tailwater below Glen Canyon Dam—2008-2014
These data were compiled to model ecosystem metabolism in the Glen Canyon Dam tailwater (e.g., the Colorado River below Glen Canyon Dam). The primary objective of our study was to develop a new ecosystem metabolism model which we refer to as the variable flow two-station (VFTS) model. The VFTS modifies the classic two-station metabolism approach to account for unsteady flow, thus...
Dabbling Duckling Habitat Use and Movements Dabbling Duckling Habitat Use and Movements
We conducted a multi-year study (2016-2019) to identify elements of wetland habitat management that could potentially benefit breeding ducks. Specifically, we examined the influence of habitat variables in explaining habitat selection of managed wetlands near upland nesting sites by radio-tagged Mallard (Anas platyrhynchos) and Gadwall (Mareca strepera) ducklings in a brackish marsh...
Estimated Annual Recharge to the Edwards Aquifer in the San Antonio Area, by Stream Basin or Ungaged Area, 1934–2023 Estimated Annual Recharge to the Edwards Aquifer in the San Antonio Area, by Stream Basin or Ungaged Area, 1934–2023
The Edwards aquifer in south-central Texas is one of the most permeable and productive aquifers in the United States and is the major source of public water supply for Bexar, Comal, Hays, Medina, and Uvalde Counties. The Edwards aquifer also supplies large quantities of water for use in agriculture, business, and industry in the region. The major artesian springs of the Edwards aquifer...
Physical and hydraulic monitoring on the Yellowstone River fish bypass channel, Montana Physical and hydraulic monitoring on the Yellowstone River fish bypass channel, Montana
This data release was produced by the U.S. Geological Survey (USGS) in cooperation with the Bureau of Reclamation (Reclamation) to present the results of monitoring efforts on the Yellowstone River fish bypass channel according to the specifications of the Lower Yellowstone Adaptive Management and Monitoring Plan. The fish bypass channel was constructed to provide upstream migrating fish...
Whole rock geochemical data for ore and host rock for select iron oxide-apatite and iron oxide-copper-gold deposits found in the Basin and Range province of California, Nevada, and Utah collected 2023-2024 Whole rock geochemical data for ore and host rock for select iron oxide-apatite and iron oxide-copper-gold deposits found in the Basin and Range province of California, Nevada, and Utah collected 2023-2024
This data release encompasses whole rock geochemical data determined on iron ore and host rock samples collected in California, Nevada, and Utah from March 2023 through June 2024. Whole rock geochemistry was conducted on 269 samples. Major element oxides were determined by borate fusion and wavelength dispersion X-ray fluorescence; 61 elements were determined by sodium peroxide fusion...
Mechanisms of Devils Lake’s Responses to Recent Climatic Wetting: Insights from a Physically Based Hydrologic Model Mechanisms of Devils Lake’s Responses to Recent Climatic Wetting: Insights from a Physically Based Hydrologic Model
These data cover Devils Lake Basin of Northern Great Plains (NGP) region, North Dakota. We aimed to understand the mechanism of the Devils Lake responses and basin-wide hydrologic change under a wet-climatic regime using a process-based and cold region hydrologic model. The data include areal measurements (km2) of each of the Hydrological Response Units (HRUs) that were modeled.