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de_lc_change_2013_2018_2022_WM
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Local Area Network
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Projected
GCS_WGS_1984
Linear Unit: Meter (1.000000)
WGS_1984_Web_Mercator_Auxiliary_Sphere
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DE_LandCover_2013_2018_Change
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The database was produced to inform effects of land use and land cover change on the
water quality in the Chesapeake Bay watershed by providing states, counties and local
jurisdictions with detailed and consistent land use information to make data-driven and
effective management decisions. The products were developed to be broadly used for
informing both conservation and restoration efforts decisions such as habitat suitability
assessments, riparian buffer implementation, agriculture and forest conservation, and
tracking the conversion of forests and farmlands to other uses.
The Chesapeake Bay Land Use and Land Cover Database (LULC) facilitates characterization of the landscape and land change for and between discrete time periods. The database was developed by the University of Vermont’s Spatial Analysis Laboratory in cooperation with Chesapeake Conservancy (CC) and U.S. Geological Survey (USGS) as part of a 6-year Cooperative Agreement between Chesapeake Conservancy and the U.S. Environmental Protection Agency (EPA) and a separate Interagency Agreement between the USGS and EPA to provide geospatial support to the Chesapeake Bay Program Office.
The database contains one-meter 13-class Land Cover (LC) and 54-class Land Use/Land Cover (LULC) for all counties within or adjacent to the Chesapeake Bay watershed for 2013/14 and 2017/18, depending on availability of National Agricultural Imagery Program (NAIP) imagery for each state. Additionally, 54 LULC classes are generalized into 18 LULC classes to simplify process of mapping LULC change, ease visualization and discussion of larger LULC trends. LC change between discrete time periods, detected by spectral changes in NAIP imagery and LiDAR, represents changes between the 12 land cover classes. LULC change uses LC change to identify where changes are happening and then LC is translated to LULC to represent transitions between the 54 LULC classes. The LULCC data is represented as a LULC class change transition matrix which provides users acres of change between multiple classes. It is organized by 18x18 and 54x54 LULC classes. The Chesapeake Bay Water (CBW) indicates raster tabulations were performed for only areas that fall inside the CBW boundary e.g., if user is interested in CBW portion of a county then they will use LULC Matrix CBW. Conversely, if they are interested change transitions across the entire county, they will use LULC Matrix.
For the complete metadata, citation and data dictionary please visit: https://doi.org/10.5066/P981GV1L
land cover
land cover change
Chesapeake Bay
Delaware
District of Columbia
Maryland
New York
Pennsylvania
Virginia
West Virginia
University of Vermont Spatial Analysis Laboratory, Chesapeake Conservancy, U.S. Geological Survey, U.S. Environmental Protection Agency Chesapeake Bay Program
The organizations responsible for generating and funding this dataset make no representations of
any kind including, but not limited to the warranties of merchantability or fitness for a particular
use, nor are any such warranties to be implied with respect to the data. The data is provided on
the condition that neither the USGS nor the U.S. Government, or any of the collaborating
organizations shall be held liable for any damages resulting from the authorized or unauthorized
use of the data. Although every effort has been made to ensure the accuracy of information,
errors may be reflected in data supplied. Possible errors or limitations of the data have been
documented but the list is not exhaustive. The user must be aware of data conditions and bear
responsibility for the appropriate use of the information with respect to possible errors, original
map scale, collection methodology, currency of data, and other conditions. Credit should always
be given to the data source when this data is transferred, altered, or used for analysis.
File Geodatabase Raster Dataset
dataset
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1801840.000000 1901205.000000
1752942.500000 1978190.000000
97795
1.000000
153970
1.000000
VAT_de_lc_change_2013_2018_2022_WM
Table
91
OBJECTID
OBJECTID
OID
4
0
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Value
Value
Integer
4
0
0
Count
Count
Double
8
0
0
Acres
Acres
Double
8
0
0
ChangeType
ChangeType
String
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0
0
LCChange
LCChange
String
58
0
0
Red
Red
Integer
4
0
0
Green
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Integer
4
0
0
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Integer
4
0
0
Alpha
Alpha
Integer
4
0
0
Band_1
212.000000
1.000000
8
20230919
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FALSE
LZ77
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pixel codes
FGDBR
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row and column
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1.000000