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The USGS Science Analytics and Synthesis Foundational Data Community supports the SAS mission by providing reliable scientific occurrence, habitat, taxonomic, and range data for terrestrial, freshwater and marine species and ecosystems and protected areas data for the U.S.. These datasets are each supported by an update plan that is determined to meet stakeholder and user needs. The datasets are national in scope and are an authoritative source for the information they provide.
Inductively coupled plasma - optical emission spectrometry (ICP-OES) analysis data compiled using sample preparation procedures outlined by ASTM D2013/D2013M-18 and ASTM D6357, and using two independent sets of element standards for instrument calibration. Additional analysis methodologies are described in detail in the resulting publication Rare earth elements and yttrium in Pennsylvanian coals and shales in the eastern part of the Illinois Basin (Mastalerz et al., 2020).
Categories: Data;
Types: Data,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Brazil Formation,
Coal,
Coal Ash,
Dugger Formation,
Illinois Basin,
This product consists of multiple tabular datasets and associated metadata of water quality information related to rivers, streams, and lakes in the Yukon River watershed between 2014 and 2018. This data release is apart of the National Aeronautics and Space Administration (NASA) funded Arctic-Boreal Vulnerability Experiment (ABoVE) and is an assessment of water quality and greenhouse gas fluxes within the interior of Alaska. Sampling frequency varied across locations, with some sites sampled twice a year or more. Data consist of: organic and inorganic carbon related species, carbon dioxide and methane gas fluxes calculated from manual chamber measurements, nitrogen species, carbon isotopes, oxygen and deuterium...
Categories: Data;
Types: Data,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Alaska,
Boot Lake,
CH4,
CO2,
CO2 Bubble Trap,
The estimation and mapping of actual evapotranspiration (ETa) is an active area of applied research in the fields of agriculture and water resources. Thermal remote sensing-based methods, using coarse resolution satellites, have been successful at estimating ETa over the conterminous United States (CONUS) and other regions of the world. In this study, we present CONUS-wide ETa from Landsat thermal imagery-using the Operational Simplified Surface Energy Balance (SSEBop) model in the Google Earth Engine (GEE) cloud computing platform. Over 150,000 Landsat satellite images were used to produce 10 years of annual ETa (2010-2019). The accuracy assessment of the SSEBop results included point-based evaluation using monthly...
Evapotranspiration is the process by which water is transferred from the soil or land surface to the atmosphere. It is the sum of direct evaporation from the ground and transpiration from plants. The Operational Simplified Surface Energy Balance (SSEBop) is a remote-sensing based model that provides actual evapotranspiration estimates. SSEBop uses the Simplified Surface Energy Balance (SSEBop) model and ET fractions from NASA's Moderate Resolution Imaging Spectroradiometer (MODIS) and predefined parameters for operational applications. This SSEBop layer is a time-enabled image service. It is a live feed layer that is updated automatically once a month.
Categories: Data,
Web Site;
Types: Data,
Downloadable,
GeoTIFF;
Tags: Actual Evapotranspiration,
Global,
Water Use
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