Information on water depth in river channels is important for a number of applications in water resource management but can be difficult to obtain via conventional field methods, particularly over large spatial extents and with the kind of frequency and regularity required to support monitoring programs. Remote sensing methods could provide a viable alternative means of mapping river bathymetry (i.e., water depth). The purpose of this study was to develop and test new, spectrally based techniques for estimating water depth from satellite image data. More specifically, a neural network-based temporal ensembling approach was evaluated in comparison to several other neural network depth retrieval (NNDR) algorithms. These methods are described in a manuscript titled "Neural Network-Based Temporal Ensembling of Water Depth Estimates Derived from SuperDove Images" and the purpose of this data release is to make available the depth maps produced using these techniques. The images used as ...

The Virginia Scenic Rivers Program was enabled by the Virginia Scenic Rivers Act of 1970. Within Loudoun County are two Virginia-designated scenic rivers - Catoctin Creek from Waterford to the confluence of the Potomac, and Goose Creek from the confluence of the north and south prongs near Linden to the confluence of the Potomac. These creeks are represented in the Loudoun County GIS using the base map drainage data, which is collected via a planimetric update process from aerial photography and processed for a cartographic representation at 1:2400 Scale, and are mapped to National Map Accuracy Standards (NMAS). As the designation is to the main trunk of each stream, tributaries were removed and the centerlines were dissolved by name.Updated - 2016Additional Information:Scenic Rivers Act - Catoctin Creek State Scenic RiverScenic Rivers Act - Goose Creek State Scenic RiverIf you would like more information or would like to get involved please contact the following:Catoctin Creek Scenic River Advisory CommitteeGoose Creek Scenic River Advisory Committee

This is a reference dataset for the Virginia Water Quality Standards for all free-flowing, freshwater streams, rivers and flowpaths designated as stockable or natural trout waters within the Virginia state boundary. See section 9VAC-25-260 of the Virginia Administrative Code for specific standards descriptions.Click Here to see Data Fact Sheet.

This line shapefile represents the major rivers within the world at 1:15,000,000 scale. This layer is part of the 2014 ESRI Data and Maps collection for ArcGIS 10.2.World Rivers provides a base map layer of major rivers of the world.

Correlation of flows at pairs of streamgages were evaluated using a Spearman’s rho correlation coefficient to better identify gages that can be used as index gages to estimate daily flow at ungaged stream sites in West Virginia. Correlation maps were developed for each candidate index streamgage using ordinary kriging, and have been compiled as grids. Sets of grids were developed for correlation of daily flows of streamgages on unregulated streams in and near (within 50 miles of) West Virginia that were operated during the 1930-2011 water years for: (1) complete water years for the entire period of record (1930-2011), (2) October-December for the entire period of record, (3) January-March for the entire period of record, (4) April-June for the entire period of record, (5) July-September for the entire period of record, (6) complete water years for 1963-1969, (7) complete water years for 1970-1979, and (8) complete water years for 1992-2011.

Details of analytical approach, results, discussion, and limitations are contained in U.S. Geological Survey Scientific Investigations Report 2014-5061.at https://pubs.usgs.gov/sir/2014/5061/

Geospatial data about Botetourt County, Virginia Streams. Export to CAD, GIS, PDF, CSV and access via API.

This polygon shapefile shows the rivers and tributaries of the Tapi Watershed in India for 2012. Rivers & tributaries data is compiled from high-resolution (1m) imagery. This layer is part of the Watershed Map of India which includes information about drainage networks (i.e. major rivers, streams and large reservoirs.) Also includes data on catchment areas/watersheds boundaries, basins and sub-basins.These data are intended for researchers, students, and policy makers for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production.Read More

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This polygon shapefile shows the sub-basin boundaries of the Ravi Watershed in India for 2012. This layer is part of the Watershed Map of India which includes information about drainage networks (i.e. major rivers, streams and large reservoirs.) Also includes data on catchment areas/watersheds boundaries, basins and sub-basins.These data are intended for researchers, students, and policy makers for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production.

This line shapefile shows the rivers of the Bādghīs Province in Afghanistan for 2005. This layer is part of the Topographic Maps of Afghanistan and Kabul dataset which contains shapefiles relating to district and provincial boundaries, land use, transportation, buildings and structures, rivers, settlements and other specific city data.This dataset is intended for researchers, students, and policy makers for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analysis with other spatial data.Read More

https://www.loc.gov/item/gvhs01.vhs00317/TitleMap of Albemarle : Made under the direction of Maj. A.H. Campbell Capt. Engs. in charge of Top. Dept. D.N.V. from surveys and reconnaissancesNamesConfederate States of America. Army. Dept. of Northern Virginia. Chief Engineer's Office.Campbell, Albert H. (Albert Henry), 1826-1899.Dwight, C. S.Created / Published[S.l. : Chief Engineer's Office D.N.V., 1864].Headings- Gilmer, Jeremy Francis,--1818-1883--Map collection- Albemarle County (Va.)--History--Civil War, 1861-1865--Maps- United States--Virginia--Albemarle CountyNotes- "Map from the Confederate Engineer Bureau in Richmond, Va. General J.F. Gilmer, Chief Engineer[.] Presented to the Virginia Historical Society by his only daughter, Mrs. J.F. Minis, Sav[ana]h, Ga."--Note on map.- Forms part of the Gilmer Map Collection.- Relief shown by hachures.- Shows towns, waterways, roads, geographical features and land owners.- Available also through the Library of Congress web site as a raster image.- Gift of Mrs. Louisa Porter (Gilmer) Minis (i.e., Mrs. J. F. Minis), Savannah, Ga., in 1911.- Manuscripts o.s. Library of Congress, Geography and Map Division.

The Potomac River Atlas of Washington County, first published in 2013, has been updated for 2020 and optimized for use with the Avenza App. This atlas is the most complete and detailed map ever created of the 83-miles of the Potomac River in Washington County. The 39 maps include the westernmost section at Sideling Hill Creek, along the river to just east of Weverton Cliffs and Knoxville. The atlas is all inclusive of every natural and manmade feature, with labels: roads, rail lines, bridges, all parks, trails, boat ramps, caves, power lines, tunnels, buildings, canal structures, and a great deal more. The maps include elevations, water flow, and subdivisions. Western Maryland Rail Trail and C&O Canal Towpath mile markers are included. West Virginia (Morgan, Berkeley, and Jefferson Counties) and Virginia (Loudoun County) are included.

This feature layer describes surface water samples taken along the Parsons to Davis portion of the Corridor H route in Tucker County, WV, as part of the Citizen Science Trout Unlimited WV-VA Water Quality Monitoring Project. Purpose:This data describes water quality data collected as part of a Citizen Science project organized by Trout Unlimited and local volunteers in West Virginia and Virginia. The purpose of this monitoring effort is to evaluate ambient water quality and evaluate impacts to aquatic ecosystems from nearby construction of Corridor H, a highway project traversing mountainous terrain in West Virginia.Source & Date:Data was received from West Virginia Rivers Coalition (an organizing partner of the effort) on 5/28/2024. Links to individual data records, hosted on the project's Citizen Science page, can be accessed by clicking the monitoring site points in the map.Processing:Data was received in Excel tablular format. Fields were re-ordered and the table was converted to Comma Separated Values (CSV) format. A copy was made and only station-related fields were kept. The CSV tables were imported into a file geodatabase. The Stations were converted to a point feature class using Lat/Long coordinates. A relationship class was created between the two tables based on the CitSci Site Name field. The original Stations CSV file was deleted and the file geodatabase published to ArcGIS Online as a feature service. Popups utilizing the related records were set up in Map Viewer.Symbology:Monitoring Stations: medium blue points

This feature layer describes surface water samples taken along the Parsons to Davis portion of the Corridor H route in Tucker County, WV, as part of the Citizen Science Trout Unlimited WV-VA Water Quality Monitoring Project. Purpose:This data describes water quality data collected as part of a Citizen Science project organized by Trout Unlimited and local volunteers in West Virginia and Virginia. The purpose of this monitoring effort is to evaluate ambient water quality and evaluate impacts to aquatic ecosystems from nearby construction of Corridor H, a highway project traversing mountainous terrain in West Virginia.Source & Date:Data was received from West Virginia Rivers Coalition (an organizing partner of the effort) on 5/28/2024. Links to individual data records, hosted on the project's Citizen Science page, can be accessed by clicking the monitoring site points in the map.Processing:Data was received in Excel tablular format. Fields were re-ordered and the table was converted to Comma Separated Values (CSV) format. A copy was made and only station-related fields were kept. The CSV tables were imported into a file geodatabase. The Stations were converted to a point feature class using Lat/Long coordinates. A relationship class was created between the two tables based on the CitSci Site Name field. The original Stations CSV file was deleted and the file geodatabase published to ArcGIS Online as a feature service. Popups utilizing the related records were set up in Map Viewer.Symbology:Monitoring Stations: medium blue points

Source Chesapeake Conservation Partnership Location Pennsylvania, New York, Delaware, Maryland, Virginia, West Virginia, and the District of Columbia. Description The map displays areas with varying levels of heritage resource overlap related to the Chesapeake Conservation Partnership long-term heritage conservation goal: “Protect the treasured landscapes of our collective heritage from development that would alter the scenery and character that conveys their importance - along our designated trails and scenic rivers and byways, at our parks, and throughout our state and national heritage areas, valued cultural landscapes and historic districts.” The goal identifies numerous mappable aspects including both designated areas and the resource values on which they are based. Some of these are site specific and others span significant areas within a state or across state lines. This map is based on the designated areas listed below and described in more detail in the page for the Important Heritage Resources -- Chesapeake Bay Watershed map. For this map the designated areas are treated as follows: National Register of Historic Places: Based on point data of NRHP listings, mostly sites, buildings, objects, and structures, with 30 meter buffer applied for calculating general acreage. National Historic Landmarks: Based on point data of NHL listings on NRHP with 30 meter buffer applied for calculating general acreage. NRHP Historic Districts: Includes area within designated district boundaries. National Historic & Scenic Trails: Includes the length of designated national historic and scenic trails, adding a 30 meter buffer for calculating a general corridor acreage. For the Appalachian National Scenic Trail, the actual land base and a corridor are mapped. ABPP Core Areas: Includes area within Core Areas identified by the American Battlefield Protection Program. National, State, and Local Parks: Includes public land managed as existing county, state, regional, and national parks Publicly Managed Conservation Lands: Includes public land managed as existing state and federal game and wildlife areas, and state and national forests. Scenic Byways: Includes the length of designated state and national scenic byways, adding a 30 meter buffer for calculating a general corridor acreage. State Scenic Rivers: Includes the length of state designated scenic rivers, adding a 30 meter buffer for the linear units to calculate a general corridor acreage. The region has no federally designated scenic rivers. State & National Heritage Areas: Includes area within boundaries of designated state and national heritage areas. Appalachian Trail Landscape: Includes area within landscape identified by Appalachian Trail Conservancy. PA Conservation Landscapes: Includes area within the boundaries of Conservation Landscapes. Maryland Focal Areas Rural Legacy Areas: Includes area within the boundaries of designated Rural Legacy Areas. All heritage data layers were given a value of “1”, and subsequently stacked, with high overlap areas resulting in higher values versus lower overlap areas with lower values. The sum of all the heritage data layers resulted in a hotspot landscape that was visualized with a color stretch where the highest values are in red and lower values in green. Important caveat: Datasets on many heritage resources included in this map are not fully complete. This map will be revised and updated as additional datasets become available. How you might make use of this data layer This dataset illustrates the relative concentrations of important heritage hotspots and landscapes for long-term conservation and preservation. This information may be useful in planning and supporting various collaborative heritage preservation efforts. How to get more information For more information about the Chesapeake Conservation Partnership contact: John Griffin, Program Manager, jgriffin@chesapeakeconservation.org