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The glacial aquifer system of the United States encompasses all or parts of 25 states and is the most widely used supply of drinking water in the Nation (Maupin and Barber, 2005; Maupin and Arnold, 2010). A series of seven raster data sets were derived from a database of water-well drillers' records that was compiled in partial fulfillment of the goals of the U.S. Geological Survey’s Groundwater Availability and Use assessment program (U.S. Geological Survey, 2002). They contain hydrogeologic information for areas of the U.S. that are north of the southern limit of Pleistocene glaciation, including the total thickness of glacial deposits, thickness of coarse-grained sediment within the glacial deposits, specific-capacity...
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The U.S. Geological Survey (USGS) has developed and implemented an algorithm that identifies burned areas in dense time series of Landsat image stacks to produce the Landsat Burned Area Essential Climate Variable (BAECV) products. The algorithm makes use of predictors derived from individual Landsat scenes, lagged reference conditions, and change metrics between the scene and reference conditions. Outputs of the BAECV algorithm consist of pixel-level burn probabilities for each Landsat scene, and annual burn probability, burn classification, and burn date composites. These products were generated for the conterminous United States for 1984 through 2015. These data are also available for download at https://rmgsc.cr.usgs.gov/outgoing/baecv/BAECV_CONUS_v1.1_2017/...
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Field spikes were prepared at 207 stream and river sites as part of the U.S. Geological Survey (USGS) National Water Quality Assessment (NAWQA) project between December, 2012, and September, 2015. At the field site, a depth-and width-integrated environmental sample was collected, and one subsample of the environmental sample was spiked with a known amount of a spike mixture. Both the spiked subsample ("spike sample") and another subsample ("environmental sample") of the original water sample were analyzed for pesticides at the USGS National Water Quality Laboratory (NWQL) by direct injection liquid chromatography with tandem mass spectrometry (LC-MS/MS), and were used to calculate the spike recovery of each analyte....
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The High Resolution National Hydrography Dataset Plus (NHDPlus HR) is an integrated set of geospatial data layers, including the best available National Hydrography Dataset (NHD), the 10-meter 3D Elevation Program Digital Elevation Model (3DEP DEM), and the National Watershed Boundary Dataset (WBD). The NHDPlus HR combines the NHD, 3DEP DEMs, and WBD to create a stream network with linear referencing, feature naming, "value added attributes" (VAAs), elevation-derived catchments, and other features for hydrologic data analysis. The stream network with linear referencing is a system of data relationships applied to hydrographic systems so that one stream reach "flows" into another and "events" can be tied to and traced...
Types: Citation; Tags: McLean County, geographic information systems, National Hydrography Dataset (NHD), watersheds, geoscientific, All tags...


map background search result map search result map Landsat Burned Area Essential Climate Variable products for the conterminous United States (1984 - 2015) USGS Small-scale Dataset - Congressional Districts of the United States - 110th Congress 200710 Shapefile USGS Small-scale Dataset - Congressional Districts of the United States - 112th Congress 201101 Shapefile Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P3 from 1983 Total Thickness of Glacial Deposits Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P2 from 09 July 1993 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T1 from 26 July 1996 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P3 from 2000 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T6 from 2000 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P2 from 2001 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T9 from 2003 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T4 from 2006 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetlands T6 and T7 from 2011 USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) for HU4-0901 (Subregion) Publication Date 20170907 HU-4 Subregion USGS Topo Map Vector Data (Vector) 9466 Cogswell, North Dakota 20170905 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 14941 Fallon NE, North Dakota 20170822 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 28176 Mayville South, North Dakota 20170822 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 43487 Streeter, North Dakota 20170822 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 6478 Butte, North Dakota 20170912 for 7.5 x 7.5 minute FileGDB 10.1 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T6 from 2000 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P3 from 1983 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T1 from 26 July 1996 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T4 from 2006 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T9 from 2003 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P3 from 2000 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P2 from 09 July 1993 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetlands T6 and T7 from 2011 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P2 from 2001 USGS Topo Map Vector Data (Vector) 9466 Cogswell, North Dakota 20170905 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 14941 Fallon NE, North Dakota 20170822 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 28176 Mayville South, North Dakota 20170822 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 43487 Streeter, North Dakota 20170822 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 6478 Butte, North Dakota 20170912 for 7.5 x 7.5 minute FileGDB 10.1 USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) for HU4-0901 (Subregion) Publication Date 20170907 HU-4 Subregion Total Thickness of Glacial Deposits Landsat Burned Area Essential Climate Variable products for the conterminous United States (1984 - 2015) USGS Small-scale Dataset - Congressional Districts of the United States - 110th Congress 200710 Shapefile USGS Small-scale Dataset - Congressional Districts of the United States - 112th Congress 201101 Shapefile