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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Red Spruce Forest Condition in Virginia Northern Flying Squirrel Distribution Red Spruce Forest Condition in Virginia Northern Flying Squirrel Distribution
These data are forest stand structure observations for high elevation red spruce and northern hardwood forest communities in the central Appalachians of Maryland, Virginia and West Virginia associated with known Virginia northern flying squirrel (Glaucomys sabrinus fuscus) presence points and user generated random points. Data were extracted from U.S. Forest Service TreeMap spatial model...
Dissolved organic and inorganic carbon in a Southeast Alaskan watershed (2021) Dissolved organic and inorganic carbon in a Southeast Alaskan watershed (2021)
Data from high frequency sampling of multiple carbon forms were collected in a predominately rain-fed watershed in Southeast Alaska during the main run-off season (May-October 2021). The dataset includes hourly measurements of stream temperature, specific conductivity, turbidity, and fluorescent dissolved organic matter, point samples of dissolved organic carbon (DOC), alkalinity...
Wall diffuser velocity effects on American Shad (Alosa sapidissima) inside a fishway entrance channel Wall diffuser velocity effects on American Shad (Alosa sapidissima) inside a fishway entrance channel
In this dataset, there are six csv files that provide the raw fish behavior telemetry data and a single csv file that provides the processed velocity data.
Island of Hawaiʻi mosquito, hydrological, and environmental data from riparian habitats, 2022-2024 Island of Hawaiʻi mosquito, hydrological, and environmental data from riparian habitats, 2022-2024
This data release includes 12 data files documenting climatic, hydrologic, and mosquito variables collected at seven riparian study sites on three streams located on the windward flank of Mauna Kea on the Island of Hawai'i from 2022 to 2024. Daily ambient temperature, ambient relative humidity, cumulative precipitation, stream pool water temperatures, and stream height (stage) were...
Concurrent Occurrence of Pesticides and Per- and Polyfluoroalkyl Substances (PFAS) in Agricultural Streams in California, USA Concurrent Occurrence of Pesticides and Per- and Polyfluoroalkyl Substances (PFAS) in Agricultural Streams in California, USA
Per-and polyfluoroalkyl substances (PFAS) are frequently found in streams, with most research focusing on urban sources of PFAS to surface water (e.g., firefighting foams, industrial releases, and wastewater treatment plant discharges). Pesticide applications are an under-investigated source of PFAS to streams in both agricultural and urban areas. There are few studies that analyze the...
Orthomosaics, Digital Elevation Models, and other uncrewed aerial systems data from 2021 to 2024 over eskers at the Breidamerkurjokull glacier margin in Iceland Orthomosaics, Digital Elevation Models, and other uncrewed aerial systems data from 2021 to 2024 over eskers at the Breidamerkurjokull glacier margin in Iceland
This dataset consists of data products derived from uncrewed aerial systems visible images and videos taken over three years from 2021 to 2024 over eskers at the Breiðamerkurjökull glacier margin in Iceland. This includes orthomosaics, digital elevation models (DEMs), elevation difference maps, shapefiles detailing the esker footprints that are visible in the previous datasets, videos of...