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This metadata record documents 11 comma delimited tables representing the amount of reported best management practice (BMP) implementation for the years from 1985 to 2014 at three geographic scales: county or land-river modeling segment, River Input Monitoring (RIM) station drainage areas, and the entire Chesapeake Bay Watershed (CBWS). Data originated from the Chesapeake Bay Watershed jurisdictions including Maryland, Pennsylvania, Virginia, Delaware, New York, West Virginia, and the District of Columbia. Data were reported to the Chesapeake Bay Program for an annual review of progress toward meeting nitrogen, phosphorus, and sediment reduction goals.
The files contained on this site are for use with the National Hydrologic Model (NHM) for the Precipitation Runoff Modeling System (PRMS), developed by the Modeling of Watershed Systems (MoWS) group of the U.S. Geological Survey. PRMS is a daily deterministic watershed-scale model (Markstrom and others, 2015), and can be used at a conterminous United States (CONUS) extent with on the Geospatial Fabric (Viger and Bock, 2014) in the NHM infrastructure (Regan and others, 2018). The NHM-PRMS is the sum of three parts: the source code, parameter values, geospatial fabric (Regan and others, in press). These components are used to generate the simlation output files. Child items of this page include all or parts of these...
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This metadata record documents 3 sets of comma delimited tables representing the amount of reported best management practice (BMP) implementation within the Chesapeake Bay watershed as well as output data from scenarios of the Chesapeake Bay Program Phase 5.3.2 Watershed Model. The scenario data were used to estimate the effects of BMPs on water quality. The data are organized by three themes (child items below); 1) BMP implementation and definitions, 2) isolation scenarios, and 3) "Progress" and "No Action" scenarios.
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Model Name (Name of the model, including acronyms): Coupled Ground-Water and Surface-Water Flow Model Based on the Integration of the Precipitation-Runoff Modeling System (PRMS) and the Modular Ground-Water Flow Model (MODFLOW-2005) (GSFLOW) Contact Name(s) (Person(s) responsible for maintenance of the model): Richard Niswonger, Andrew T Leaf Contact Email(s): rniswon@usgs.gov, aleaf@usgs.gov Originator(s) (Name(s) of the model developer(s)/author(s)): Richard Niswonger, Robert S Regan Model Version (Version of the model, (i.e., 2.0)): 2.1.0 Online Link (An organizational website or repository, if available. Multiple allowed): https://www.usgs.gov/software/coupled-ground-water-and-surface-water-flow-model-gsflow...
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This metadata record documents 2 comma delimited tables representing output from the Chesapeake Bay Program Phase 5.3.2 Watershed Model. The effect of best management practices (BMP) in 2014 in the Chesapeake Bay Watershed (CBWS) is estimated through a series of model scenarios that isolate the effect of individual BMPs. Data include a table describing the series of isolation scenarios and the summarized output of all scenarios. Scenario output include the estimated nitrogen, phosphorus, and sediment mass reductions for each BMP. Analysis of BMP implementation over time can provide insight to water quality restoration progress.
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This metadata record documents a comma-delimited table representing scenario output from the Chesapeake Bay Program Phase 5.3.2 Watershed Model. The annual effect of best management practices (BMP) on water quality in the Chesapeake Bay Watershed (CBWS) is estimated through a series of model scenarios. The model output data tables for each year from 1985 to 2014 are included with estimated mass of nitrogen, phosphorus, and sediment. Each year has an output table for a “Progress” scenario, which is a model run with all BMPs active, and a “No Action” scenario, which is a model run with all BMPs deactivated. Model output is provided at the Watershed Model land-river segment scale.


    map background search result map search result map USGS NHM-PRMS Releases Estimated effect of best management practice implementation on water quality in the Chesapeake Bay watershed from 1985 to 2014 1) Best management practice implementation in the Chesapeake Bay watershed from 1985 to 2014 3) Annual estimated effect of best management practice implementation on water quality in the Chesapeake Bay watershed from 1985 to 2014 2) Estimated effect of best management practice implementation on water quality in the Chesapeake Bay watershed from 1985 to 2014 Estimated effect of best management practice implementation on water quality in the Chesapeake Bay watershed from 1985 to 2014 1) Best management practice implementation in the Chesapeake Bay watershed from 1985 to 2014 2) Estimated effect of best management practice implementation on water quality in the Chesapeake Bay watershed from 1985 to 2014 3) Annual estimated effect of best management practice implementation on water quality in the Chesapeake Bay watershed from 1985 to 2014