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.
Filter Total Items: 16240
Radiocarbon Dates and Foraminiferal Geochemistry Data for Sediment Core Collected from Garrison Basin, Gulf of Mexico Radiocarbon Dates and Foraminiferal Geochemistry Data for Sediment Core Collected from Garrison Basin, Gulf of Mexico
Stable oxygen and carbon isotope composition (delta18O and delta13C) and magnesium-to-calcium (Mg/Ca) ratios were measured in the tests of planktic foraminiferal species, Globigerinoides ruber (white variety), in a northwestern Gulf of Mexico sediment core 2010-GB2-GC1 collected from the Garrison Basin (26.67 degrees N, 93.92 degrees W) at a water depth of 1776 meters (m), aboard the R/V...
Mean seasonal SPARROW model inputs and simulated nitrogen and phosphorus loads for the Northeastern United States 2002 base year Mean seasonal SPARROW model inputs and simulated nitrogen and phosphorus loads for the Northeastern United States 2002 base year
This U.S. Geological Survey (USGS) data release includes input and output tabular files associated with mean seasonal 2002 simulations of total nitrogen and total phosphorus loads of the northeastern United States. The mean seasonal (MS) simulations are performed using a dynamic configuration of the USGS's Spatially Referenced Regression On Watershed attributes (dynamicSPARROW-MS) model...
Walrus Haulout Outlines Apparent from Satellite Imagery Near Point Lay Alaska, Autumn 2018-2020 Walrus Haulout Outlines Apparent from Satellite Imagery Near Point Lay Alaska, Autumn 2018-2020
These data are in three folders of Keyhole Markup Language (KML) geospatial polygons representing the outlines of walrus herds apparent in satellite imagery. Each KML file contains one or more geospatial polygons of walrus herd outlines created by one observer who visually interpreted the images. The attribute values from all KML files are collected in a CSV table included with this data...
Vegetation Composition and Management History Data (2015-2019) from Experimental Plots at Badlands NP, Wind Cave NP, and Scotts Bluff NM Used to Develop the ABAM Model Vegetation Composition and Management History Data (2015-2019) from Experimental Plots at Badlands NP, Wind Cave NP, and Scotts Bluff NM Used to Develop the ABAM Model
Plant species cover and richness data were collected in experimental plots at three sites: one at Badlands National Park (BADL), South Dakota, one at Scotts Bluff National Monument (SCBL), Nebraska, and one at Wind Cave National Park (WICA), South Dakota. At the Badlands and Scotts Bluff sites, data were collected in the summers of 2015 and 2017-2020 in 50 x 50-m plots with one of five...
Penstemon grahamii genetic data from a dryland region of the western United States Penstemon grahamii genetic data from a dryland region of the western United States
These data were compiled to investigate the evolutionary history of Graham's beardtongue (Penstemon grahamii). Objective(s) of our study were to determine the evolutionary history of P. grahamii, including ancestral population sizes, the history of population divergences, and historical connectivity. In addition, we characterized population structure, genetic diversity summary statistics...
Structure from motion products associated with UAS flights in Sandwich, Massachusetts between January 2016 - September 2017 Structure from motion products associated with UAS flights in Sandwich, Massachusetts between January 2016 - September 2017
Low-altitude (80-100 meters above ground level) Unmanned Aircraft Systems (UAS) imagery of Town Neck Beach in Sandwich, Massachusetts, were used in a structure-from-motion (SfM) photogrammetry workflow to create high-resolution topographic datasets. Imagery was collected at close to low tide on twelve days to observe changes in beach and dune morphology. Ground control points (GCPs)...