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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Bathymetric Map of the Lummi Sea Pond, October 2022 Bathymetric Map of the Lummi Sea Pond, October 2022
On October 5-6, 2022, a combination of Acoustic Doppler Current Profiler (ADCP) and Global Navigation Satellite System (GNSS) surveying were used to collect bathymetric data of the Lummi Sea Pond near Bellingham, WA. Distributed XYZ points were interpolated to create a continuous bathymetric map of the sea pond. The final product is two-meter raster in NAD88 (2011) UTM 10N coordinates...
Inundation metrics by 10-km bend, Lower Missouri River Floodplain Inundation metrics by 10-km bend, Lower Missouri River Floodplain
This is a shapefile of points summarizing inundation metrics and geomorphic variables for bends in the downstream-most 800 km of the Lower Missouri River. Points are located at the centroids of 10-km bends of the river. The metrics were developed through analysis of inundation maps calculated from a 1-dimensional hydraulic model for the channel and floodplain. Water-surface elevations...
Salinity and total dissolved solid determinations using PHREEQCI Salinity and total dissolved solid determinations using PHREEQCI
The total concentration of dissolved constituents in water is routinely quantified by measurements of salinity or total dissolved solids (TDS). However, salinity and TDS are operationally defined by their analytical methods and are not equivalent for most waters. Furthermore, multiple methods are available to determine salinity and TDS, and these methods have inherent differences. TDS is...
Supporting data and model outputs for hydrologic alteration modeling in the Pearl and Pascagoula river basins Supporting data and model outputs for hydrologic alteration modeling in the Pearl and Pascagoula river basins
Anthropogenic hydrologic alteration threatens the health of riverine ecosystems. This study assesses hydrologic alteration in the Pearl and Pascagoula river basins using modeled daily streamflow. Machine learning was used to identify locations that have undergone statistically significant streamflow alteration, quantify the volume of the alteration, and predict alteration using cubist...
Total monthly water withdrawals for public supply by 12-digit hydrologic unit in the conterminous United States for 2015 Total monthly water withdrawals for public supply by 12-digit hydrologic unit in the conterminous United States for 2015
This dataset presents the total estimated monthly public-supply water withdrawal by 12-digit hydrologic unit code (HUC12) in the conterminous United States for 2015. Public-supply water use was estimated by spatially and temporally downscaling available data from each state. The total represents combined groundwater and surface water withdrawals for 83,178 watersheds. Public supply...
PopEquus: A Predictive Modeling Tool to Support Management Decisions for Free-roaming Horse Populations, Version 1.0.1 PopEquus: A Predictive Modeling Tool to Support Management Decisions for Free-roaming Horse Populations, Version 1.0.1
PopEquus is a website application that can be used to understand trade-offs and inform decisions in free-roaming horse (Equus caballus) population management. The application (https://rconnect.usgs.gov/popequus/) contains a predictive population modeling tool that can be used to simulate how different management actions drive changes in horse population size, while measuring management...