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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2015 National Coastal Conditions Assessment: Algal Toxins and Cyanotoxins in United States Estuary Samples Detected by Liquid Chromatography Triple Quadrupole Mass Spectrometry (LC/MS/MS) 2015 National Coastal Conditions Assessment: Algal Toxins and Cyanotoxins in United States Estuary Samples Detected by Liquid Chromatography Triple Quadrupole Mass Spectrometry (LC/MS/MS)
The U.S. Environmental Protection Agency (EPA) National Coastal Condition Assessment (NCCA) is a nationwide survey of coastal and estuarine water quality. During the 2015 EPA NCCA, samples were collected at 732 sites for analysis of algal toxins and cyanotoxins at the Organic Geochemistry Research Laboratory (OGRL) at the U.S. Geological Survey Kansas Water Science Center (KSWSC) by...
“DelRiv 24k – LU": Land Use/Land Cover Related Data Summaries for the Delaware River Watershed Within NHD Plus HR catchments “DelRiv 24k – LU": Land Use/Land Cover Related Data Summaries for the Delaware River Watershed Within NHD Plus HR catchments
These tabular data are the summarization of land use/land cover related variables within the Delaware River watershed at the 1:24,000 scale using the xstrm methodology. Variables being counted as land use/land cover related include all land use and land cover data. Outputs consist of tabular comma-separated values files (CSVs), and parquet formatted files for both the local catchment and...
“DelRiv 24k – NE": Natural Environment Related Data Summaries for the Delaware River Watershed Within NHD Plus HR catchments “DelRiv 24k – NE": Natural Environment Related Data Summaries for the Delaware River Watershed Within NHD Plus HR catchments
These tabular data are the summarization of natural environment related variables within catchments of the Delaware River watershed at the 1:24,000 scale using the xstrm methodology. Variables being counted as natural environment related include soils/geology, lithology, elevation, slope, landform (geomorphon) and others. Outputs include tabular comma-separated values files (CSVs) and...
Water-borne electromagnetic induction, handheld thermal infrared and sediment temperature, chemical, and pressure data collected at Hen Cove, Pocasset, Massachusetts, 2022 Water-borne electromagnetic induction, handheld thermal infrared and sediment temperature, chemical, and pressure data collected at Hen Cove, Pocasset, Massachusetts, 2022
Groundwater discharge points to coastal waters can be identified and quantified using natural electrical and temperature data. In August 2022, U.S. Geological Survey (USGS) collected water-borne electromagnetic induction and temperature along selected transects within Hen Cove on Cape Cod, Massachusetts, following a spatial survey of bed sediment temperature. Handheld thermal infrared...
Chloropyron molle Single Nucleotide Polymorphism Genotype Data from Contra Costa, Napa, and Solano Counties, California, USA Chloropyron molle Single Nucleotide Polymorphism Genotype Data from Contra Costa, Napa, and Solano Counties, California, USA
This dataset contains 253 samples from 11 occurrences of Chloropyron molle subsp. molle, and 3 occurrences of Chloropyron molle hispidum. Genomic markers were generated from ddRAD loci and analyzed using the Stacks v2.60 pipeline. The genotypes for all samples are provided in a VCF file with 40,707 independent loci . A companion sample data file is provided with sample names, and...
Rare Plant Occurrences Geodatabase for the Northern Channel Islands (ver. 2.0, June 2025) Rare Plant Occurrences Geodatabase for the Northern Channel Islands (ver. 2.0, June 2025)
The Rare Plant Occurrences geodatabase is an element occurrence data system with about 10,000 records of rare plant observations on the 6 northernmost California Channel Islands. It is a live database created with the purpose of bringing together in one space all discoverable historic and current information on the localities of about 180 rare and sensitive plants of the northern Channel...