20191224
17550800
1.0
North American Profile of ISO19115 2003
FALSE
STSPEvocativeLandscape_Calvert
002
0.000
Projected
GCS_North_American_1983
Linear Unit: Foot_US (0.304801)
NAD_1983_StatePlane_Maryland_FIPS_1900_Feet
<ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/10.1'><WKT>PROJCS["NAD_1983_StatePlane_Maryland_FIPS_1900_Feet",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",1312333.333333333],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-77.0],PARAMETER["Standard_Parallel_1",38.3],PARAMETER["Standard_Parallel_2",39.45],PARAMETER["Latitude_Of_Origin",37.66666666666666],UNIT["Foot_US",0.3048006096012192],AUTHORITY["EPSG",2248]]</WKT><XOrigin>-120561100</XOrigin><YOrigin>-95444400</YOrigin><XYScale>3048.0060960121918</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.0032808333333333331</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>102685</WKID><LatestWKID>2248</LatestWKID></ProjectedCoordinateSystem>
20140709
12563600
NAP
20140709
12563600
This dataset shows areas of forest, agriculture, and wetland that is visible from land and water routes and is generally evocative of the early 19th century
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Evocative landscapes are places possessing a feeling that expresses the aesthetic or historic sense of a particular period of time. This feeling results from the presence of physical features that, taken together, convey a landscape's historic character. For example, landscapes that generally relate the feeling of the early 19th centurly landscape in the Chesapeake Bay Region - or that are "evocative" of that landscape - would be those that are generally free from intrusion by the sights, sounds, and smells of modern development. </SPAN></P><P><SPAN>The evocative landscape layer was created based on the viewshed analysis conducted and available land cover data. Using the raster calculator in spatial analyst, the two layers were added together to determine areas of forest or wetlands visible from the Star-Spangled Banner routes. Assumptions: -Tree cover was accounted for by adding an additional 50' to the elevation data -Observation point elevation: water surface elevation + 6' -Line of sight: 3.29 miles (distance to horizon based on 6' observation point-calculated on the National Geospatial Agency website) GIS layers and data sources used to create the model: -National Elevation Dataset (USGS 1-Arc Second NED) -Tree Cover Virginia: 2005 Virginia Forest Cover (VA Department of Forestry) -Tree Cover Maryland: Maryland Department of Planning 2002 Land Use/Land cover -Wetlands (NWI May 2009 Statewide Shapefiles) - Star-Spangled Banner Routes (NPS) </SPAN></P></DIV></DIV></DIV>
Star-Spangled Banner National Historic Trail National Park Service Chesapeake Bay Office
410 Severn Avenue, Suite 314
Annapolis, MD 21403
Esri ArcGIS 10.1.1.3143
STSPEvocativeLandscape_Calvert
20120504
File Geodatabase Feature Class
0.000
dataset
EPSG
7.11.2
0
Simple
FALSE
0
TRUE
FALSE
STSPEvocativeLandscape_Calvert
Feature Class
0
OBJECTID
OBJECTID
OID
4
0
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Shape
Shape
Geometry
0
0
0
Feature geometry.
Esri
Coordinates defining the features.
ID
ID
Double
8
0
0
GRIDCODE
GRIDCODE
Double
8
0
0
Shape_Length
Shape_Length
Double
8
0
0
Length of feature in internal units.
Esri
Positive real numbers that are automatically generated.
Shape_Area
Shape_Area
Double
8
0
0
Area of feature in internal units squared.
Esri
Positive real numbers that are automatically generated.