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Katahdin Woods and Waters National Monument boundary
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The U.S. Geological Survey (USGS) developed a regression model for estimating mean August baseflow per square mile of drainage area in cooperation with National Oceanic and Atmospheric Administration (NOAA) to help resource managers assess relative amounts of baseflow in streams with Maine Atlantic Salmon habitat (Lombard and others, 2021). The model was applied to each reach of a stream network derived from select National Hydrography Dataset Plus High-Resolution (NHDPlusHR) data in the State of Maine south of 46º 21′55″ N latitude. The spatial coverage developed from the stream network contains model-estimated mean August baseflow per square mile of drainage area as an attribute of each NHDPlusHR reach. Please...
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During the spring and summer of 2022, the U.S. Geological Survey collected water-quality samples for nutrient analysis at 45 stations across the state of Connecticut and adjacent areas of New York and Rhode Island to better understand the groundwater discharge component of nitrogen loading to the Long Island Sound. The targeted stations were located in small drainage basins (less than 50 square kilometers) in the southern portion of the Long Island Sound watershed. Sites were selected randomly from groups based on expected drivers or controls on baseflow nitrogen loads. Factors used in the grouping included four metrics calculated for the upstream watershed: percent impervious cover, septic system density, percent...
map background search result map search result map Massachusetts boundary Rhode Island boundary New Hampshire boundary New England boundary Vermont boundary Cape Cod boundary Three Bays watershed, Cape Cod Conterminous US Franklin and Orleans Counties, Vermont Chittenden County, Vermont Coastal Connecticut Herring River Pawcatuck River Maravista NH4towns Spatial Coverage for Estimated Baseflow for Streams Containing Endangered Atlantic Salmon in Maine, USA (version 1.1, June 2022) KAWW_Boundary Long Island Sound Watershed Nitrogen Loads, Yields, and Associated Field Data Collected During Baseflow Conditions and Site Attributes for Small Basins Draining to Long Island Sound Maravista Herring River Three Bays watershed, Cape Cod NH4towns KAWW_Boundary Pawcatuck River Chittenden County, Vermont Cape Cod boundary Franklin and Orleans Counties, Vermont Rhode Island boundary Nitrogen Loads, Yields, and Associated Field Data Collected During Baseflow Conditions and Site Attributes for Small Basins Draining to Long Island Sound Coastal Connecticut Vermont boundary New Hampshire boundary Massachusetts boundary Long Island Sound Watershed Spatial Coverage for Estimated Baseflow for Streams Containing Endangered Atlantic Salmon in Maine, USA (version 1.1, June 2022) New England boundary Conterminous US