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The US Geological Survey Chesapeake Bay Watershed Land Cover Data Series, 2011 edition, (CBLCD-e11) consists of Level I Land Cover data for the years 1984, 1992, 2001, 2006 and 2011. It consists of a series of five 8-bit unsigned integer raster data files of 30 meter spatial resolution in Albers Conic Equal Area projection, NAD83 datum. The 1984 – 2006 data layers were created by aggregating most Level II Anderson classes of the USGS CBLCD Land Cover Data Series released in 2010 (Irani and Claggett, 2010).
A shapefile containing the irrigated wedges (both dry and wet) used in this study. These wedges cover a small portion of the Eastern Shore of Maryland, centered on Hillsboro, MD.
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Conservation agriculture,
Eastern Shore of Maryland
This posting contains the source climate data used to run the SWAT model in the Tuckahoe and Greensboro subwatersheds of the Choptank River watershed, Maryland.
To better understand how the land is changing and to relate those changes to water quality trends, the USGS funded the production of a Chesapeake Bay Watershed Land Cover Data Series (CBLCD) representing four dates: 1984, 1992, 2001, and 2006. These data were produced by MDA Federal Inc., under contract to the USGS and were derived from Landsat 5 Thematic Mapper and Landsat 7 Enhanced Thematic Mapper satellite imagery. Each of the four datasets consists of 16 land use and land cover classes (Anderson, et al., 1976). The datasets are temporally comparable and encompass the entire Chesapeake Bay watershed and most intersecting counties. The 2001 dataset represents the base layer for the Data Series and is composed...
Types: GeoTIFF,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service,
Raster;
Tags: Chesapeake Bay Watershed
A spread sheet documenting the application and derivation of equations used in the moisture correction process. This sheet outputs a corrected fractional residue cover and also has estimates of standard error, residual standard error, residual mean squared error and range of the calculated fractional residue estimates.
This posting contains the source crop rotation data used to run the SWAT model in the Tuckahoe and Greensboro subwatersheds of the Choptank River watershed, Maryland. The dataset consists of the following items: Croprotations.zip = Shapefiles of HRU boundaries and crop rotations for Greensboro (GSB) and Tuckahoe (TK) watershed
This posting contains the stream flow and load data used to run the SWAT model in the Tuckahoe subwatershed of the Choptank River watershed, Maryland.
This data release includes the data used to generate histograms that compared total watershed pollutant removal efficiency (TWPRE) in the two study watersheds Crystal Rock (traditional watershed) and Tributary (Trib.) 104 low impact development (LID watershed) to determine if LID BMP design offered an improved water quality benefit. Input/calibrants data used in the model (Monte Carlo) are described in the manuscript as mentioned in the list below: -BMP Name and Type: references in the manuscript -BMP Connectivity: Proprietary (derived from Montgomery County GIS Data) -BMP Drainage Areas: Proprietary (derived from Montgomery County GIS Data) -BMP Efficiency Ranges: referenced in manuscript -Baseline Pollutant Loadings:...
Categories: Data;
Tags: Maryland,
Montgomery County,
geographic information systems (GIS),
runoff,
surface water quality
Worldview 3 SWIR Image Mosaic that has been atmospherically corrected to surface reflectance covering a small portion of the Eastern Shore of Maryland, centered on Hillsboro, MD.
Categories: Data;
Types: Downloadable,
GeoTIFF,
Map Service,
Raster;
Tags: Conservation agriculture,
Eastern Shore of Maryland
This posting contains field and satellite data collected in support of the scientific manuscript "Improved crop residue cover estimates by coupling spectral indices for residue and moisture." Quemada, M., W.D. Hively, C.S. Daughtry, B.T. Lamb, and J. Shermeyer. In review by Remote Sensing of Environment. In this study, field data were collected on May 15, 2015 and paired with reflectance data collected May 14th 2015. The manuscript compares portions of agricultural fields that were irrigated the day of imagery acquisitions with portions of the same fields not yet irrigated, using the contrast to derive a moisture correction algorithm for determination of percent crop residue cover. The data publication contains...
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: USGS Science Data Catalog (SDC)
A spread sheet documenting the application and derivation of equations used in the moisture correction process. This sheet outputs a corrected fractional residue cover and also has estimates of standard error, residual standard error, residual mean squared error and range of the calculated fractional residue estimates.
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