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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Geochemistry, thin section images, and 40Ar/39Ar isotopic data of selected bedrock samples in the Orange-Milford Belt, Connecticut Geochemistry, thin section images, and 40Ar/39Ar isotopic data of selected bedrock samples in the Orange-Milford Belt, Connecticut
This data release contains geochemical data, thin section images, and 40Ar/39Ar isotopic data from bedrock samples in the Orange-Milford Belt of south-central Connecticut. The geochemical data comprise whole-rock major oxide and trace element abundances in 111 samples. Pairs of images in plane-polarized light and cross-polarized light are included for 90 thin sections. Step-heated 40Ar...
Field Observations of Past Debris Flows, February 2024, Pohnpei State, Federated States of Micronesia Field Observations of Past Debris Flows, February 2024, Pohnpei State, Federated States of Micronesia
Landslide hazards pose a significant threat to communities and infrastructure across the Federated States of Micronesia (FSM). To support hazard assessment and mitigation efforts, the USGS Landslide Disaster Assistance Team (LDAT) produced landslide susceptibility and debris-flow runout models and map products for Pohnpei State, FSM. For more information on the LDAT FSM project, refer to...
Fish eggs collected in the St. Clair, Detroit, and St. Marys rivers, 2005-2024 Fish eggs collected in the St. Clair, Detroit, and St. Marys rivers, 2005-2024
A long-term, multi-season, fish egg sampling program is conducted annually on the Detroit, Saint Clair, and Saint Marys rivers to identify where productive fish spawning habitat currently exists and evaluate habitat restoration projects. Egg mats were placed on the river bottom during the spring and fall at historic spawning areas, candidate fish spawning habitat restoration sites, and...
Field Observations of Past Debris Flows, February 2024, Kosrae State, Federated States of Micronesia Field Observations of Past Debris Flows, February 2024, Kosrae State, Federated States of Micronesia
Landslide hazards pose a significant threat to communities and infrastructure across the Federated States of Micronesia (FSM). To support hazard assessment and mitigation efforts, the USGS Landslide Disaster Assistance Team (LDAT) produced landslide susceptibility and debris-flow runout models and map products for Kosrae State, FSM. For more information on the LDAT FSM project, refer to...
Field Observations of Past Debris Flows, February 2024, Chuuk State, Federated States of Micronesia Field Observations of Past Debris Flows, February 2024, Chuuk State, Federated States of Micronesia
Landslide hazards pose a significant threat to communities and infrastructure across the Federated States of Micronesia (FSM). To support hazard assessment and mitigation efforts, the USGS Landslide Disaster Assistance Team (LDAT) produced landslide susceptibility and debris-flow runout models and map products for Chuuk State, FSM. For more information on the LDAT FSM project, refer to...
ANN-classified crop type map for the year 2022 in California's Central Valley ANN-classified crop type map for the year 2022 in California's Central Valley
Classified map of crop types in California's Central Valley generated using artificial neural network multilayer perceptron models and Harmonized Landsat-8 Sentinel-2 Landsat 30m (HLSL30) data. The model was trained on data from the year 2021 and validated on the independent year 2022.