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The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water...
Tags: Administrative watershed units, Administrative watershed units, Area of Complex Channels, Area to be submerged, Basin, All tags...
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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.
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The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water...
Tags: Administrative watershed units, Administrative watershed units, Appling, Area of Complex Channels, Area to be submerged, All tags...
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The Geographic Names Information System (GNIS) is the Federal standard for geographic nomenclature. The U.S. Geological Survey developed the GNIS for the U.S. Board on Geographic Names, a Federal inter-agency body chartered by public law to maintain uniform feature name usage throughout the Government and to promulgate standard names to the public. The GNIS is the official repository of domestic geographic names data; the official vehicle for geographic names use by all departments of the Federal Government; and the source for applying geographic names to Federal electronic and printed products of all types.
Tags: Antarctica, Antarctica, Appling, Atkinson, BGN, All tags...
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The Geographic Names Information System (GNIS) is the Federal standard for geographic nomenclature. The U.S. Geological Survey developed the GNIS for the U.S. Board on Geographic Names, a Federal inter-agency body chartered by public law to maintain uniform feature name usage throughout the Government and to promulgate standard names to the public. The GNIS is the official repository of domestic geographic names data; the official vehicle for geographic names use by all departments of the Federal Government; and the source for applying geographic names to Federal electronic and printed products of all types.
Tags: Antarctica, Antarctica, Appling, Atkinson, BGN, All tags...
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The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water...
Tags: Administrative watershed units, Administrative watershed units, Appling, Area of Complex Channels, Area to be submerged, All tags...
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A Turner Designs C3 submersible fluorometer was deployed in the Brandon Road Lock chamber (BRLD) near Rockdale, Illinois, to measure Rhodamine WT dye concentrations during a U.S. Geological Survey dye study conducted on October 20, 2015. The lock chamber at BRLD was dyed with 4 liters of Rhodamine WT dye during a routine filling procedure. Measurements of dye concentration profiles were collected at 15 stations in the lock chamber and capture the three-dimensional distribution of the dye in the chamber after filling, after the lock was emptied, and after a 17-minute flushing operation of the lock. A series of five taglines and rope and pulley systems were used to position the fluorometer at each station to avoid...
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Water velocities were measured in the lock chamber of Brandon Road Lock on the Des Plaines River at river mile 286 on December 10, 2014 using a Teledyne RDI Rio Grande 600 kHz acoustic Doppler current profiler (ADCP). The data were georeferenced with a differential GPS receiver with submeter accuracy. These velocity measurements were collected in support of the US Army Corps of Engineers Great Lakes and Mississippi River Interbasin Study (GLMRIS). Data were processed using the Velocity Mapping Toolbox (Parsons and others, 2013) to derive temporally- and spatially-averaged water velocity values. Parsons, D. R., Jackson, P. R., Czuba, J. A., Engel, F. L., Rhoads, B. L., Oberg, K. A., Best, J. L., Mueller, D. S.,...
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An Insitu Level Troll 500 was deployed in the Brandon Road Lock chamber (BRLD) near Rockdale, Illinois between 12:09 Central Daylight Time (CDT) on October 19, 2015 and 14:57 CDT October 21, 2015 to monitor water-surface elevation in the lock chamber during a U.S. Geological Survey dye study conducted on October 20, 2015. The duration of the deployment included a day prior to and a day following the dye study to capture the lock operations leading up to and following the dye study. The instrument was deployed within conduit placed inside the ladder well near the 500-foot station on the right wall of the lock chamber (when looking downstream). At the time of deployment, the Level Troll was calibrated to the water...
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Geospatial data is comprised of government boundaries.
Types: Citation; Tags: Appling, Atkinson, Bacon, Baker, Baldwin, All tags...
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The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water...
Tags: Administrative watershed units, Administrative watershed units, Area of Complex Channels, Area to be submerged, Basin, All tags...


map background search result map search result map Rhodamine WT dye concentration profiles measured at fixed stations in the Brandon Road Lock chamber near Rockdale, Illinois (October 20, 2015) Water surface elevation in the Brandon Road Lock chamber near Rockdale, Illinois (October 19-21, 2015) Velocity measurements collected in the lock chamber of Brandon Road Lock and Dam, Joliet, Illinois, USA in December 2014 USGS National Boundary Dataset (NBD) in Georgia State or Territory (published 20240215) FileGDB USGS National Hydrography Dataset Best Resolution (NHD) for Hydrological Unit (HU) 8 - 03070103 (published 20231215) Shapefile USGS National Hydrography Dataset Best Resolution (NHD) for Hydrological Unit (HU) 8 - 03070103 (published 20231215) FileGDB USGS 1:24000-scale Quadrangle for Rockdale, WI 1961 USGS US Topo 7.5-minute map for Loganville, GA 2014 USGS US Topo 7.5-minute map for Porterdale, GA 2011 USGS US Topo 7.5-minute map for Porterdale, GA 2017 USGS US Topo 7.5-minute map for Snellville, GA 2014 USGS US Topo 7.5-minute map for Snellville, GA 2017 USGS US Topo 7.5-minute map for Stockbridge, GA 2017 USGS National Hydrography Dataset Best Resolution (NHD) - Georgia (published 20231227) Shapefile USGS National Hydrography Dataset Best Resolution (NHD) for Hydrological Unit (HU) 4 - 0307 (published 20231118) GeoPackage Geographic Names Information System (GNIS) Full Model for GA (published 20240206) FileGDB Geographic Names Information System (GNIS) Domestic Names for GA (published 20240201) pipes Rhodamine WT dye concentration profiles measured at fixed stations in the Brandon Road Lock chamber near Rockdale, Illinois (October 20, 2015) Water surface elevation in the Brandon Road Lock chamber near Rockdale, Illinois (October 19-21, 2015) Velocity measurements collected in the lock chamber of Brandon Road Lock and Dam, Joliet, Illinois, USA in December 2014 USGS 1:24000-scale Quadrangle for Rockdale, WI 1961 USGS US Topo 7.5-minute map for Loganville, GA 2014 USGS US Topo 7.5-minute map for Porterdale, GA 2011 USGS US Topo 7.5-minute map for Porterdale, GA 2017 USGS US Topo 7.5-minute map for Snellville, GA 2014 USGS US Topo 7.5-minute map for Snellville, GA 2017 USGS US Topo 7.5-minute map for Stockbridge, GA 2017 USGS National Hydrography Dataset Best Resolution (NHD) for Hydrological Unit (HU) 8 - 03070103 (published 20231215) Shapefile USGS National Hydrography Dataset Best Resolution (NHD) for Hydrological Unit (HU) 8 - 03070103 (published 20231215) FileGDB USGS National Hydrography Dataset Best Resolution (NHD) for Hydrological Unit (HU) 4 - 0307 (published 20231118) GeoPackage USGS National Boundary Dataset (NBD) in Georgia State or Territory (published 20240215) FileGDB USGS National Hydrography Dataset Best Resolution (NHD) - Georgia (published 20231227) Shapefile Geographic Names Information System (GNIS) Full Model for GA (published 20240206) FileGDB Geographic Names Information System (GNIS) Domestic Names for GA (published 20240201) pipes