USGS 1:62500-scale Quadrangle for Wilmington, DE 1906

USGS Historical Quadrangle in GeoPDF.

Tags: 15 x 15 minute, DE, Downloadable Data, GeoPDF, GeoTIFF, All tags... Historical Topographic Maps, Historical Topographic Maps 15 x 15 Minute Map Series, Map, Wilmington, imageryBaseMapsEarthCover, Fewer tags

USGS 1:250000-scale Quadrangle for Wilmington, DE 1966

USGS Historical Quadrangle in GeoPDF.

Tags: 1 x 2 degree, DE, Downloadable Data, GeoPDF, GeoTIFF, All tags... Historical Topographic Maps, Historical Topographic Maps 1 x 2 Degree Map Series, Map, Wilmington, imageryBaseMapsEarthCover, Fewer tags

USGS 1:24000-scale Quadrangle for Trap Pond, DE 1955

USGS Historical Quadrangle in GeoPDF.

Tags: 7.5 x 7.5 minute, DE, Downloadable Data, GeoPDF, GeoTIFF, All tags... Historical Topographic Maps, Historical Topographic Maps 7.5 x 7.5 Minute Map Series, Map, Trap Pond, imageryBaseMapsEarthCover, Fewer tags

USGS 1:24000-scale Quadrangle for Milton, DE 1955

USGS Historical Quadrangle in GeoPDF.

Tags: 7.5 x 7.5 minute, DE, Downloadable Data, GeoPDF, GeoTIFF, All tags... Historical Topographic Maps, Historical Topographic Maps 7.5 x 7.5 Minute Map Series, Map, Milton, imageryBaseMapsEarthCover, Fewer tags

USGS 1:24000-scale Quadrangle for Mispillion River, DE 1949

USGS Historical Quadrangle in GeoPDF.

Tags: 7.5 x 7.5 minute, DE, Downloadable Data, GeoPDF, GeoTIFF, All tags... Historical Topographic Maps, Historical Topographic Maps 7.5 x 7.5 Minute Map Series, Map, Mispillion River, imageryBaseMapsEarthCover, Fewer tags

USGS 1:24000-scale Quadrangle for Lewes, DE 1997

USGS Historical Quadrangle in GeoPDF.

Tags: 7.5 x 7.5 minute, DE, Downloadable Data, GeoPDF, GeoTIFF, All tags... Historical Topographic Maps, Historical Topographic Maps 7.5 x 7.5 Minute Map Series, Lewes, Map, imageryBaseMapsEarthCover, Fewer tags

USGS 1:62500-scale Quadrangle for Harrington, DE 1918

USGS Historical Quadrangle in GeoPDF.

Tags: 15 x 15 minute, DE, Downloadable Data, GeoPDF, GeoTIFF, All tags... Harrington, Historical Topographic Maps, Historical Topographic Maps 15 x 15 Minute Map Series, Map, imageryBaseMapsEarthCover, Fewer tags

USGS 1:24000-scale Quadrangle for Harbeson, DE 1955

USGS Historical Quadrangle in GeoPDF.

Tags: 7.5 x 7.5 minute, DE, Downloadable Data, GeoPDF, GeoTIFF, All tags... Harbeson, Historical Topographic Maps, Historical Topographic Maps 7.5 x 7.5 Minute Map Series, Map, imageryBaseMapsEarthCover, Fewer tags

USGS 1:24000-scale Quadrangle for Lewes, DE 1944

USGS Historical Quadrangle in GeoPDF.

Tags: 7.5 x 7.5 minute, DE, Downloadable Data, GeoPDF, GeoTIFF, All tags... Historical Topographic Maps, Historical Topographic Maps 7.5 x 7.5 Minute Map Series, Lewes, Map, imageryBaseMapsEarthCover, Fewer tags

USGS 1:24000-scale Quadrangle for Kenton, DE 1993

USGS Historical Quadrangle in GeoPDF.

Tags: 7.5 x 7.5 minute, DE, Downloadable Data, GeoPDF, GeoTIFF, All tags... Historical Topographic Maps, Historical Topographic Maps 7.5 x 7.5 Minute Map Series, Kenton, Map, imageryBaseMapsEarthCover, Fewer tags

USGS 1:24000-scale Quadrangle for Frederica, DE 1993

USGS Historical Quadrangle in GeoPDF.

Tags: 7.5 x 7.5 minute, DE, Downloadable Data, Frederica, GeoPDF, All tags... GeoTIFF, Historical Topographic Maps, Historical Topographic Maps 7.5 x 7.5 Minute Map Series, Map, imageryBaseMapsEarthCover, Fewer tags

A deep learning model and associated data to support understanding and simulation of salinity dynamics in Delaware Bay

Salinity dynamics in the Delaware Bay estuary are a critical water quality concern as elevated salinity can damage infrastructure and threaten drinking water supplies. Current state-of-the-art modeling approaches use hydrodynamic models, which can produce accurate results but are limited by significant computational costs. We developed a machine learning (ML) model to predict the 250 mg/L Cl- isochlor, also known as the salt front, using daily river discharge, meteorological drivers, and tidal water level data. We use the ML model to predict the location of the salt front, measured in river miles (RM) along the Delaware River, during the period 2001-2020, and we compare the ML model results to results from the hydrodynamic...

Categories: Data; Tags: DE, Delaware, Delaware River Basin, Hydrology, MD, All tags... Maryland, NJ, NY, New Jersey, New York, PA, Pennsylvania, US, USGS Science Data Catalog (SDC), United States, coastal science, deep learning, environment, estuary, explainable AI, hybrid modeling, information theory, inlandWaters, machine learning, modeling, salinity, salt front, water, water resources, Fewer tags

USGS Watershed Boundary Dataset (WBD) for 2-digit Hydrologic Unit - 02 (published 20231103) Shapefile

The Watershed Boundary Dataset (WBD) is a comprehensive aggregated collection of hydrologic unit data consistent with the national criteria for delineation and resolution. It defines the areal extent of surface water drainage to a point except in coastal or lake front areas where there could be multiple outlets as stated by the "Federal Standards and Procedures for the National Watershed Boundary Dataset (WBD)" "Standard" (https://pubs.usgs.gov/tm/11/a3/). Watershed boundaries are determined solely upon science-based hydrologic principles, not favoring any administrative boundaries or special projects, nor particular program or agency. This dataset represents the hydrologic unit boundaries to the 12-digit (6th level)...

Tags: 10-digit, 12-digit, 14-digit, 16-digit, 2-digit, All tags... 4-digit, 6-digit, 8-digit, Accomack, Adams, Albany, Albemarle, Alexandria, Allegany, Alleghany, Amelia, Amherst, Anne Arundel, Appomattox, Arlington, Atlantic, Augusta, Baltimore, Basin, Bath, Bedford, Bennington, Bergen, Berkeley, Berks, Berkshire, Blair, Botetourt, Bradford, Bronx, Broome, Buckingham, Bucks, Buena Vista, Burlington, CT, Calvert, Cambria, Camden, Cameron, Campbell, Cape May, Carbon, Caroline, Carroll, Cecil, Centre, Charles, Charles City, Charlotte, Charlottesville, Chemung, Chenango, Chesapeake, Chester, Chesterfield, Clarke, Clearfield, Clinton, Colonial Heights, Columbia, Connecticut, Cortland, Covington, Craig, Culpeper, Cumberland, DC, DE, Dauphin, Delaware, Delaware, Dinwiddie, District of Columbia, District of Columbia, Dorchester, Downloadable Data, Dutchess, Elk, Esri Shapefile nan, Essex, Fairfax, Falls Church, Fauquier, Fluvanna, Franklin, Frederick, Fredericksburg, Fulton, Garrett, Giles, Gloucester, Goochland, Grant, Greater Bridgeport, Greenbrier, Greene, HU-2, HU-2 Region, HU2_02, HUC, Hamilton, Hampshire, Hampton, Hanover, Hardy, Harford, Harrisonburg, Henrico, Herkimer, Highland, Hopewell, Howard, Hudson, Hunterdon, Huntingdon, Hydrography, Hydrologic Unit Code, Hydrologic Units, Indiana, Isle of Wight, James City, Jefferson, Juniata, Kent, King George, King William, King and Queen, Kings, Lackawanna, Lancaster, Lebanon, Lehigh, Lewis, Lexington, Livingston, Loudoun, Louisa, Lower Connecticut River Valley, Lunenburg, Luzerne, Lycoming, Lynchburg, MA, MD, Madison, Manassas, Manassas Park, Maryland, Massachusetts, Mathews, McKean, Mercer, Middlesex, Mifflin, Mineral, Monmouth, Monroe, Montgomery, Montour, Morgan, Morris, NJ, NY, Nassau, National Watershed Boundary Dataset (WBD), National Watershed Boundary Dataset (WBD), Nelson, New Castle, New Jersey, New Kent, New York, New York, Newport News, Norfolk, Northampton, Northumberland, Nottoway, Ocean, Oneida, Onondaga, Ontario, Orange, Otsego, PA, Page, Passaic, Pendleton, Pennsylvania, Perry, Petersburg, Philadelphia, Pike, Pocahontas, Poquoson, Portsmouth, Potter, Powhatan, Preston, Prince Edward, Prince George, Prince George's, Prince William, Putnam, Queen Anne's, Queens, RI, Randolph, Rappahannock, Region, Rensselaer, Rhode Island, Richmond, Roanoke, Rockbridge, Rockingham, Rockland, Rutland, Salem, Saratoga, Schenectady, Schoharie, Schuyler, Schuylkill, Shapefile, Shenandoah, Snyder, Somerset, South Central Connecticut, Southeastern Connecticut, Spotsylvania, St. Mary's, Stafford, Staunton, Steuben, Sub-basin, Sub-region, Subwatershed, Suffolk, Sullivan, Surry, Susquehanna, Sussex, Talbot, Tioga, Tompkins, Tucker, US, Ulster, Union, United States, VA, VT, Vermont, Virginia, Virginia Beach, WBD, WV, Warren, Washington, Watershed, Watershed Boundary Dataset, Wayne, Waynesboro, West Virginia, Westchester, Western Connecticut, Westmoreland, Wicomico, Williamsburg, Winchester, Windham, Worcester, Wyoming, Yates, York, inlandWaters, Fewer tags

USGS Topo Map Vector Data (Vector) 25091 Laurel DE (published 20231222) GeoPackage

Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.

Tags: 7.5 x 7.5 minute, 7_5_Min, Combined Vector, Combined Vector, Combined Vector, All tags... DE, Delaware, Downloadable Data, GeoPackage, Open Geospatial Consortium GeoPackage 1.2, Public Land Survey System, Sussex, Topo Map Vector Data, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags

USGS Topo Map Vector Data (Vector) 11846 Delaware City DE (published 20231222) GeoPackage

Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.

Tags: 7.5 x 7.5 minute, 7_5_Min, Combined Vector, Combined Vector, Combined Vector, All tags... DE, Delaware, Downloadable Data, GeoPackage, NJ, New Castle, New Jersey, Open Geospatial Consortium GeoPackage 1.2, Public Land Survey System, Salem, Topo Map Vector Data, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags

USGS Topo Map Vector Data (Vector) 41848 Smyrna DE (published 20231222) Shapefile

Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.

Types: Citation; Tags: 7.5 x 7.5 minute, 7_5_Min, Combined Vector, Combined Vector, Combined Vector, All tags... DE, Delaware, Downloadable Data, Esri Shapefile nan, Kent, New Castle, Public Land Survey System, Shapefile, Topo Map Vector Data, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags

USGS Topo Map Vector Data (Vector) 11846 Delaware City DE (published 20231222) FileGDB

Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.

Types: Citation; Tags: 7.5 x 7.5 minute, 7_5_Min, Combined Vector, Combined Vector, Combined Vector, All tags... DE, Delaware, Downloadable Data, Esri File GeoDatabase 10, FileGDB, NJ, New Castle, New Jersey, Public Land Survey System, Salem, Topo Map Vector Data, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags

USGS Topo Map Vector Data (Vector) 29396 Millington MD (published 20231222) GeoPackage

Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.

Tags: 7.5 x 7.5 minute, 7_5_Min, Cecil, Combined Vector, Combined Vector, All tags... Combined Vector, DE, Delaware, Downloadable Data, GeoPackage, Kent, MD, Maryland, New Castle, Open Geospatial Consortium GeoPackage 1.2, Public Land Survey System, Queen Anne's, Topo Map Vector Data, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags

USGS Topo Map Vector Data (Vector) 43602 Sudlersville MD (published 20231222) GeoPackage

Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.

Tags: 7.5 x 7.5 minute, 7_5_Min, Caroline, Combined Vector, Combined Vector, All tags... Combined Vector, DE, Delaware, Downloadable Data, GeoPackage, Kent, MD, Maryland, Open Geospatial Consortium GeoPackage 1.2, Public Land Survey System, Queen Anne's, Topo Map Vector Data, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags

USGS Topo Map Vector Data (Vector) 49297 Wilmington North DE (published 20231222) GeoPackage

Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.

Tags: 7.5 x 7.5 minute, 7_5_Min, Chester, Combined Vector, Combined Vector, All tags... Combined Vector, DE, Delaware, Delaware, Downloadable Data, GeoPackage, New Castle, Open Geospatial Consortium GeoPackage 1.2, PA, Pennsylvania, Public Land Survey System, Topo Map Vector Data, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags