Name: CIC2014_VA_STATEWIDE.tif

Display Field: Value

Type: Raster Layer

Geometry Type: null

Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This raster dataset was developed as part of the Land Cover Project, a cooperative agreement between the Chesapeake Conservancy and the National Park Service funded through an interagency agreement with the Environmental Protection Agency. Virginia Geographic Information Network (VGIN) coordinated with Worldview Solutions the creation of a separate VA statewide high-resolution land cover dataset, which has unique class names and descriptions. For the purposes of a matching bay-wide dataset, this VA dataset was reclassified and some classes were edited to better match the Chesapeake Bay Dataset class definitions below. High Resolution mapping was used to develop consistent and extremely accurate land cover dataset for all the counties that comprise the Chesapeake Bay watershed. This land cover was created based on 2014 National Agriculture Imagery Program (NAIP) aerial imagery. </SPAN></P><P><SPAN /></P><P><SPAN>The Land Cover Dataset has 9 classes: </SPAN></P><P><SPAN>0/2/7/10/13/14 NoData: Background Value</SPAN></P><P><SPAN>1 Water: All areas of open water. This includes ponds, rivers, lakes and boats not attached to docks. MMU = 25 square meters. </SPAN></P><P><SPAN>3 Tree Canopy: Deciduous and evergreen woody vegetation of either natural succession or human planting that is over approximately 3-5 meters in height. Stand-alone individuals, discrete clumps, and interlocking individuals are included. MMU = 9 square meters</SPAN></P><P><SPAN>4 Shrubland: Heterogeneous area of both/either deciduous and/or evergreen woody vegetation. Characterized by variation in height of vegetation through patchy coverage of shrubs and young trees interspersed with grasses and other lower vegetation. Discrete clumps and small patches of interlocking individuals are included, as are true shrubs, young trees, and trees or shrubs that are small or stunted because of environmental conditions, when intermingled in a heterogeneous landscape with low vegetation. MMU = 225 square meters</SPAN></P><P><SPAN>5 Low Vegetation: Plant material less than approximately 2 meters in height. Includes lawns, tilled fields, nursery plantings with or without tarp cover and natural ground cover. MMU = 9 square meters </SPAN></P><P><SPAN>6 Barren: Areas void of vegetation consisting of natural earthen material regardless of how it has been cleared. This includes beaches, mud flats, and bare ground in construction sites. MMU = 25 square meters</SPAN></P><P><SPAN>8 Impervious Surfaces: Human-constructed surfaces through which water cannot penetrate, and that are below approximately 2 meters in height. MMU = 9 square meters</SPAN></P><P><SPAN>9 Impervious Roads: Impervious surfaces that are used and maintained for transportation. MMU = 9 square meters</SPAN></P><P><SPAN>11 Tree Canopy over Impervious Surfaces: Forest or Tree Cover that overlaps with impervious surfaces rendering the impervious surface partially or completely not visible to plain sight. MMU = 9 square meters</SPAN></P><P><SPAN>12 Tree Canopy over Impervious Roads: Forest or Tree Cover that overlaps with impervious surfaces rendering the roads partially or completely not visible to plain sight. MMU = 9 square meters</SPAN></P><P><SPAN /></P><P><SPAN>Minimum Mapping Unit (MMU) in this instance is the minimum size, dimensions or threshold for features to be mapped or classified within a specific class.</SPAN></P><P><SPAN /></P></DIV></DIV></DIV>

Service Item Id: 96983d40ead84178968ced0656307efb

Copyright Text: Dataset created and developed by the Conservation Innovation Center at the Chesapeake Conservancy. The creation of this dataset was made possible as a result of a cooperative agreement between the Chesapeake Conservancy and the National Park Service being funded through an interagency agreement with the Environmental Protection Agency.

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