Core Science Systems


狠狠噜天天噜日日噜CSS leads USGS’s mission as the civilian mapping agency for the Nation. We conduct detailed surveys and develop high quality, highly accurate topographic, geologic, hydrographic, and biogeographic maps and data. Our maps allow precise planning for critical mineral assessments; energy development; infrastructure projects; urban planning; flood prediction; emergency response; and hazard mitigation.

National Geospatial Program

National Geospatial Program

狠狠噜天天噜日日噜The National Geospatial Program is the Federal civilian mapping agency and provides the digital geospatial foundation for the Nation. It engages partners and communities of use to collaboratively produce consistent and accurate topographic map data.

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Science Analytics and Synthesis (SAS)

Science Analytics and Synthesis (SAS)

The USGS Science Data Catalog, supported by SAS, provides seamless access to USGS research and monitoring data from across the nation. Users have the ability to search, browse, or use a map-based interface to discover data.

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Date published: June 8, 2020

Continuous Monitoring of Land Surface Change Over 30 Years Using the Landsat Record

The USGS Land Change Monitoring, Assessment, and Projection project has released a new suite of land-cover change products for the conterminous U.S.

Date published: June 4, 2020

NEW TNMCorps Mapping Challenge for Fire Stations in Alabama!

狠狠噜天天噜日日噜TNMCorps mapping challenges continue in the southern states with another challenge for fire stations in Alabama!

Date published: June 3, 2020

Coronavirus victims include restoration, monitoring of Bay

狠狠噜天天噜日日噜Bay Journal — By Timothy B. Wheeler, Jeremy Cox & Karl Blankenship — June 3, 2020


Year Published: 2020

狠狠噜天天噜日日噜A study was conducted by the U.S. Geological Survey (USGS) in cooperation with the Washington, D.C., Department of Energy & Environment to estimate the loads of suspended-sediment-bound chemical compounds in five gaged tributaries and four ungaged tributaries of the Anacostia River (known locally as “Lower Anacostia River”) in Washington, D.C...

Wilson, Timothy P.
Wilson, T.P., 2019, Sediment and chemical contaminant loads in tributaries to the Anacostia River, Washington, District of Columbia, 2016–17: U.S. Geological Survey Scientific Investigations Report 2019–5092, 146 p.,

Year Published: 2020

A prototype system to explore Linked Data that semantically integrates geospatial data in various formats from different publication sources with data from The National Map of the U.S. Geological Survey is presented. The focus is on accessing advanced feature descriptions for data from The National Map with data coreferenced from other sources....

Wagner, Matthew; Varanka, Dalia E.; Usery, E. Lynn
Wagner, M., Varanka, D.E., and Usery, E.L., 2020, A system design for implementing advanced feature descriptions for a map knowledge base: U.S. Geological Survey Scientific Investigations Report 2019–5148, 25 p.,

Year Published: 2020

More data are being collected about the world around us than ever before, but effectively using this information requires different data stores to be integrated in such a way that they can be seamlessly queried and analyzed. Automated alignment algorithms exist to facilitate this data integration challenge. In this paper we examine the utility of...

Cheatham, Michelle; Varanka, Dalia E.; Arauz, Fatima; Zhou, Lu