Filters: Tags: Hydrologic network (X) > partyWithName: U.S. Geological Survey - ScienceBase (X)

Filters Date Range Past year (2) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts Gregory E Schwarz Benjamin P Gressler U.S. Geological Survey Michael E Wieczorek John A Young More... Categories Data (4) Tag Types Theme (4) USGS Scientific Topic Keyword (4) Place (4) Harvest Set (4) Label (1) Tag Schemes None (2) ISO 19115 Topic Category (1) View Results as: JSON ATOM CSV

“ChesBay 24k – LU": Land Use/Land Cover Related Data Summaries for the Chesapeake Bay Watershed Within NHD Plus HR catchments These tabular data are summaries of land use/land cover related variables within catchments of the Chesapeake Bay watershed using the Xstrm methodology at 1:24,000 scale. Variables being counted as land use/land cover related contain all land use and land cover data including datasets that are split off or combined from those data (eg. agriculture or impervious classes only datasets). Outputs consist of tabular comma-separated values files (CSVs) for both the local catchment and network summaries linked to the National Hydrography Dataset Plus High-Resolution (NHDPlus HR) framework by NHDPlus ID. Local catchments are defined as the single catchment the data is summarized within. Network accumulation summaries were... Categories: Data; Tags: Agriculture, Aquatic Biology, Catchment, Catchments, Chesapeake, All tags... Chesapeake Bay, Chesapeake Bay Watershed, Delaware, District of Columbia, Ecology, Ecology, Forest, Geographic Information Systems, Geography, Geography, Hydrography, Hydrologic network, Hydrology, Hydrology, Impervious Surfaces, Land Use Change, Land Use Change, Land Use/ Land Cover, Lower Chesapeake Bay, Maryland, National Hydrography Dataset Plus, National Hydrography Datasets High Resolution, New York, Pennsylvania, Remote Sensing, Remote Sensing, Stream / River, USGS Science Data Catalog (SDC), United States, Upper Chesapeake Bay, Virginia, Water Resources, Water Resources, West Virginia, barren lands, cities, geospatial datasets, hydrographic datasets, hydrographic features, inlandWaters, Fewer tags “ChesBay 24k – HU": Human Related Data Summaries for the Chesapeake Bay Watershed Within NHD Plus HR catchments These tabular data are summaries of human related landscape variables within catchments of the Chesapeake Bay watershed using the Xstrm methodology at 1:24,000 scale. Variables being counted as human related include agriculture, barriers, road density and road/stream crossing data. Outputs consist of tabular comma-separated values files (CSVs) for both local catchment and network summaries linked to the National Hydrography Dataset Plus High-Resolution (NHDPlus HR) framework by NHDPlus ID. Local catchments are defined as the single catchment the data is summarized within. Network accumulation summaries were completed for each of the local catchments and their network connected upstream and/or downstream catchments.... Categories: Data; Tags: Agriculture, Aquatic Biology, Catchment, Catchments, Chesapeake, All tags... Chesapeake Bay, Chesapeake Bay Watershed, Dams, Delaware, Designing Sustainable Landscapes, District of Columbia, Ecology, Ecology, Environmental Health, Environmental Health, Fish Passage, Geographic Information Systems, Geography, Geography, Hydrography, Hydrologic network, Hydrology, Hydrology, Lower Chesapeake Bay, Maryland, National Hydrography Dataset Plus, National Hydrography Datasets High Resolution, New York, Pennsylvania, Roads, Soil Sciences, Soil Sciences, Stream / River, Stream-road crossing, TIGER roads, USGS Science Data Catalog (SDC), United States, Upper Chesapeake Bay, Virginia, Water Quality, Water Quality, Water Resources, Water Resources, West Virginia, geospatial datasets, hydrographic datasets, hydrographic features, inlandWaters, transportation features, Fewer tags E2NHDPlusV2_us: Database of Ancillary Hydrologic Attributes and Modified Routing for NHDPlus Version 2.1 Flowlines The National Hydrography Dataset Plus, Version 2 (NHDPlusV2) is an attribute rich, digital hydrologic network for the Conterminous U.S. developed by the U.S. Environmental Protection Agency (EPA) and U.S. Geological Survey (USGS). SPAtially Referenced Regressions On Watershed attributes (SPARROW), is a process-based/statistical model that relies on a digital hydrologic network, like NHDPlusV2, in order to establish spatial relations between monitored contaminant loads, contaminant sources, and other watershed characteristics. The USGS National Water Quality Assessment (NAWQA) project adopted the medium-resolution NHDPlusV2 network as the primary framework supporting SPARROW modeling, and has become a unifying system... Categories: Data; Tags: Conterminous United States, Hydrology, NHDPlus, SPARROW, USGS Science Data Catalog (SDC), All tags... Water Quality, Water Resources, biota, hydrography, hydrologic network, routing, Fewer tags Database of modified routing for NHDPlus version 2.1 flowlines: ENHDPlusV2_us This database (ENHDPlusV2_us) contains a topologically reconditioned (enhanced) version of the U.S. Environmental Protection Agency (USEPA) and the U.S. Geological Survey (USGS) NHDPlus Version 2.1 (NHDPlusV2) flowline network. The comma separated file included in this release contains routing and stream connection information, with the intention of improving accuracy and networking capabilities. The enhancements described here include corrections to inconsistencies in network and routing information, filling-in missing attribute values of associated characteristics, and revisions to diverted flow routing. The database is intended for routing purposes only; no cartographic changes were made to the original NHDPlusv2... Categories: Data; Tags: Conterminous United States, Geography, Hydrologic network, NHDPlus, National Water Quality Program, All tags... USGS Science Data Catalog (SDC), Water Quality, Water Resources, routing, Fewer tags