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This dataset includes 800m resolution long-term average estimates of the contributions to the quick-flow runoff component of the water budget over the time period from 2000-2013 and annual estimates for the individual years. These estimates were developed with a new empirical regression for surface runoff data generated from a USGS-developed hydrograph separation program (PART) run on streamflow data from 1434 gaged watersheds as a function of surficial geology type (USGS), precipitation (PRISM), and soil hydraulic conductivity (STATSGO). Irrigated water quantities reported in the 2000, 2005, and 2010 USGS Water Use datasets are also incorporated as effective additional precipitation. The contributing input datasets...
The U.S. Army Corps of Engineers' Upper Mississippi River Restoration (UMRR) program, through its Long Term Resource Monitoring (LTRM) element, collected aerial imagery of the systemic Upper Mississippi River System (UMRS).
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This USGS Data Release represents geospatial and tabular data for the Denali Sampling Project. The data release was produced in compliance with the new 'open data' requirements as a way to make the scientific products associated with USGS research efforts and publications available to the public. The dataset consists of 4 separate items: 1. Sample Site Locations (Vector GIS dataset) 2. Sample Transects (Vector GIS dataset) 3. Final Index Score Output (Raster GIS dataset) 4. Sample Site Recordings - Finalized (Tabular dataset) These data support the following publication: Ignizio, D.A., 2015, Sample associated publication: U.S. Geological Survey Open-File Report 2016–xxxx, xx p., http://dx.doi.org/10.3133/ofr2015xxxx.
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The Core Research Center (CRC) was established in 1974 by the USGS to preserve valuable samples of the Earth’s subsurface for use by scientists and educators representing government, industry, and academia. The CRC collections include full-diameter rock cores, slabbed cores (cut in half longitudinally), well cuttings, thin sections, and associated analytical data. A majority of the material was donated to the CRC by private industrial companies, although some cores and cuttings were collected by the USGS and other government agencies. Rock cores were collected from roughly 9,500 drilled borehole locations representing approximately 610,000 meters (2 million feet) of subsurface strata in 35 states. Many of the boreholes...
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Earthquake Hazards Program Data Sources includes the ANSS
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This collection is comprised of digital, slide and print photographs taken during engineering geology, energy and minerals resource related field projects from 1970-2020. These photos document field sites, geologic features, landscapes and landforms from the various areas of Alaska. There are collections specific to each of the Division's sections that document the effort needed to complete the culling and documentation of exisiting photos. As of 2020, DGGS has cataloged 19,724 photos, with 12,813 available to the public. Only those photos with location information are available within the National Digital Catalog
This project established a permafrost monitoring network in this region, providing a baseline of permafrost thermal regimes for assessing future change at a total of 26 automated monitoring stations. Stations have collected year-round temperature data from the active layer and the permafrost starting from the summer of 2011. The strong correspondence between spatial variability in permafrost thermal regime and an existing ecotype map allowed for the development of a map of ‘permafrost thermal classes’ for the broader study region. Further, the annual temperature data was used to calibrate models of soil thermal regimes as a function of climate, providing estimates of both historic and future permafrost thermal regimes...
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This pilot project has initiated a long-term integrated modeling project that aims todevelop a dynamically linked model framework focused on climate driven changes tovegetation, disturbance, hydrology, and permafrost, and their interactions and feedbacks.This pilot phase has developed a conceptual framework for linking current state-of-thesciencemodels of ecosystem processes in Alaska – ALFRESCO, TEM, GIPL-1 – and theprimary processes of vegetation, disturbance, hydrology, and permafrost that theysimulate. A framework that dynamically links these models has been defined and primaryinput datasets required by the models have been developed.
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Layered GeoPDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features. This map depicts geographic features on the surface of the earth. One intended purpose is to support emergency response at all levels of government. The geospatial data in this map are from selected National Map data holdings and other government sources.
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The Gap Analysis Project (GAP) is an element of the U.S. Geological Survey. GAP helps to implement the Department of the Interior’s goals of inventory, monitoring, research, and information transfer. GAP has three primary goals: Identify conservation gaps that help keep common species common; Provide conservation information to the public so that informed resource management decisions can be made; and Facilitate the application of GAP data and analysis to specific resource management activities. To implement these goals, GAP carries out the following objectives: Map the land cover of the United States Map predicted distributions of vertebrate species for the U.S. Map the location, ownership and stewardship of...
The western coastline of Alaska is highly susceptible to coastal storms, which can cause coastal erosion, flooding, and have other pernicious effects to the environment and commercial efforts. The reduction in ice coverage due to climate change could potentially increase the frequency and degree of coastal flooding and erosion. Further, estuaries and delta systems act as conduits for storm surges, so when there is less nearshore ice coverage, these systems could introduce storm surge into terrestrial environments unaccustomed to saline intrusion, flooding, or other alien biogeochemical factors.This project quantified the effect of reduced nearshore ice coverage on coastal flooding. The project developed a large...
Categories: Collection, Data; Tags: Academics & scientific researchers, COASTAL AREAS, COASTAL AREAS, COASTAL PROCESSES, COASTAL PROCESSES, All tags...
The Upper Mississippi River Basin Data Portal (UMRBDP) supports the research, science and monitoring missions of the USGS's Midwest Region (MWR) and others by allowing the users to discover, visualize, share, and retrieve geographic information and data sets related to the Upper Mississippi and other large rivers in the MWR.
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map background search result map search result map USGS Core Research Center US Topo USGS Gap Analysis Project (GAP) Grasslands Inventory 2015 Sample Data Release Imagery Collection of field photographs from Alaska Annual average quick-flow runoff across the CONUS, 2000-2013 Integrated Ecosystem Model Reports Random core keywords record 9 Random core keywords record 11 Random core keywords record 15 Random core keywords record 29 Random core keywords record 27 Random core keywords record 25 Random core keywords record 23 Random core keywords record 9 Random core keywords record 11 Random core keywords record 15 Random core keywords record 29 Random core keywords record 27 Random core keywords record 25 Random core keywords record 23 2015 Sample Data Release Imagery Grasslands Inventory Collection of field photographs from Alaska Integrated Ecosystem Model Reports Annual average quick-flow runoff across the CONUS, 2000-2013 US Topo USGS Gap Analysis Project (GAP)