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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Surface Geophysical Data Collected at, and Adjacent to Hanscom Air Force Base, Bedford, Massachusetts, 2024 Surface Geophysical Data Collected at, and Adjacent to Hanscom Air Force Base, Bedford, Massachusetts, 2024
In 2024 the U.S. Geological Survey (USGS), in cooperation with the Air Force Civil Engineer Center (AFCEC), conducted geophysical surveys at Hanscom Air Force Base, Hanscom Field, and surrounding areas in Massachusetts. Methods used included frequency-domain electromagnetic induction (EMI), ground-penetrating radar (GPR), horizontal-to-vertical spectral ratio (HVSR) passive seismic...
Water Quality Vertical Profile Data in West Thompson Lake, Connecticut, 2022 and 2024 Water Quality Vertical Profile Data in West Thompson Lake, Connecticut, 2022 and 2024
This data release consists of vertical water-quality profile data collected at three locations in West Thompson Lake Connecticut from June to October 2022 and from May to October 2024. The U.S. Geological Survey, in cooperation with the Connecticut Department of Energy and Environmental Protection, collected these data to assess physical property stratification in the West Thompson Lake...
Kīpahulu Valley, Haleakalā National Park, Maui bird, mosquito, and avian malaria infection data, 2002 and 2019 Kīpahulu Valley, Haleakalā National Park, Maui bird, mosquito, and avian malaria infection data, 2002 and 2019
This data publication contains data files collected as part of a field and laboratory effort aimed at estimating the prevalence and altitudinal distribution of avian malaria in forest birds and in the primary vector of malaria in Hawaii, Culex quinquefasciatus in Kīpahulu Valley, Haleakalā National Park, on the island of Maui in 2002 and 2019. To track the spread of mosquitoes and...
Gravity data, geophysical grids, and horizontal gradient maxima of the Healdsburg 30 by 60 minute quadrangle, California Gravity data, geophysical grids, and horizontal gradient maxima of the Healdsburg 30 by 60 minute quadrangle, California
This data release contains (1) principal facts of gravity measurements by previous studies and collected by the U.S. Geological Survey in 2006-2024, (2) geophysical grids, and (3) horizontal gradient maxima derived from gravity and magnetic potential fields of the Healdsburg 30 by 60 minute quadrangle, California. Gridded data are provided in geotiff format. These data support modeling...
Projections of vegetated area and vegetated plain elevation in Chesapeake Bay salt marsh units Projections of vegetated area and vegetated plain elevation in Chesapeake Bay salt marsh units
Projections of vegetated area and vegetated plain elevation for salt marsh units within the Chesapeake Bay (CB) salt marsh complex are calculated using geospatial information for conceptual marsh units defined by Ackerman and others (2022) and Defne and others (2023). The projections are based on the UBMorph model, described in Ganju and others (2025), which estimates changes in areal...
SHRIMP-RG U-Pb ages and trace element data of zircons, and whole-rock Sr-Nd-Pb isotopic data, from Sonoran and Sinaloan Neoproterozoic to Paleogene metaigneous and metasedimentary samples, northern Mexico SHRIMP-RG U-Pb ages and trace element data of zircons, and whole-rock Sr-Nd-Pb isotopic data, from Sonoran and Sinaloan Neoproterozoic to Paleogene metaigneous and metasedimentary samples, northern Mexico
This dataset accompanies two proposed publications, "Descriptions and age constraints for new Jurassic flora fossils in west-central Sonora, Mexico: Results from U-Pb zircon geochronology, Sr-Nd isotopes, and megafossil taxa" and "Summary of Paleozoic and Mesozoic Rocks in Sonora and northern Sinaloa, Mexico", which will both report zircon SHRIMP-RG U-Pb ages and whole-rock isotope...