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Location Folder Show Tree ROOT _Users Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts Maryland-Delaware-D.C. Water Science Center U.S. Geological Survey Shannon E Jackson U.S. Geological Survey - ScienceBase Gregory E Schwarz Water Resources Tag Types Theme (4) Place (4) Tag Schemes None (4) View Results as: JSON ATOM CSV Browse Folder

Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Routed Upstream Watersheds for the Conterminous United States: STATSGO Soil Characteristics, Layer Attributes This tabular data set represents the STATSGO Soil Layer Attributes compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. The source data is found in the LAYER table from the "STATSGO soil characteristics for the conterminous United States" produced by the United States Geological Survey (Wolock, 1997). The variables included are water-table depth, soil erodibility (k-fact), soil erodibility for the uppermost soil horizon (k-factup), permeability, average water capacity, bulk density, percent organic material, rainfall and runoff factor ("R factor"... Types: Citation; Tags: Catchment, Conterminous United States, Inlandwaters, K factor, K factor upper horizon, All tags... NAWQA, NHDPlus, Number 10 sieve, Number 200 sieve, Number 4 sieve, R factor, STATSGO, average water capacity, bulk density, organic material, permeability, rock depth, soil, water table depth, Fewer tags Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Routed Upstream Watersheds for the Conterminous United States: National Inventory of Dams (NID) Storage and Construction by Decade, 1930 to 2010 This tabular data set contains decadal information on dams compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. This dataset can be linked to the NHDPlus version 2 data suite by the unique identifier COMID. The source data for dam information was produced by the United States Army Corps of Engineers. The information provided here contains the number of dams (both major and minor), dam storage (acre feet) and decade of construction compiled as described above. Reach catchment information characterizes data at the local scale. Reach catchments accumulated... Types: Citation; Tags: Conterminous United States, Dam storage, Dams, Inlandwaters, Major dams, All tags... NHDPlus, National Inventory of Dams, Fewer tags Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Estimated 30-Year (1971-2000) Average Annual Runoff Based on Flow Measured at Streamgages, Millimeters per Year This tabular data set represents estimated 30-year (1971-2000) average annual runoff in millimeters per year compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. This dataset can be linked to the NHDPlus version 2 data suite by the unique identifier COMID. The source data was compiled by the United States Geological Survey (USGS, Dave Wolock written commun., 2012) based on based on flow measured at streamgages as described in Brakebill and others (2011). Units are millimeters per year. Reach catchment information characterizes data at the local... Types: Citation; Tags: Catchment, Conterminous United States, Inlandwaters, NAWQA, NHDPlus, All tags... SPARROW, annual runoff, Fewer tags Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Routed Upstream Watersheds for the Conterminous United States: Nematicide Use on Agricultural Land in Kilograms per square Kilometer, 2009 This data set represents the Nematicide use on agricultural land in kilograms per square kilometer, 2009 value compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network (i.e., watersheds). This dataset can be linked to the NHDPlus version 2 data suite by the unique identifier COMID. The source data were produced by Naomi Nakagaki (USGS, written communication, 2013). Units for the Nematicide use on agricultural land in kilograms per square kilometer, 2009 are kilogram per square kilometer. Reach catchment information characterizes data at the local scale.... Types: Citation; Tags: Arkansas-White_Red, California, Catchment, Conterminous United States, Great Lakes, All tags... Inlandwaters, Lower Mississippi, Missouri, NAWQA, NHDPlus, Nematicide use on agricultural land in kilograms per square kilometer, 2009, New England and Mid-Atlantic, Ohio, Pacific Northwest, Rio Grande, Colorado, and Great Basin, Souris-Red-Rainy, South Atlantic-Gulf and Tennessee, Tennessee, Texas Gulf, Upper Mississippi, Fewer tags