In ArcMap, towns within our study area were selected from LANDUSE and a new layer was created from this selection.
Towns were selected by attribute, based on their Town_ID code. The following Town_IDs were selected:
9, 30, 31, 38, 48, 71, 92, 105, 116, 119, 144, 164, 184, 205, 206, 210, 213, 229, 246, 254, 295, 320, 298, 324, 342, and 347.
The selected features were then exported as a new layer, TOWNSFROMLU.
Process_Date: 200607
The land use map of the study area was imported into Idrisi Kiliminjaro and converted to a raster file. After importing TOWNSFROMLU,
the data base file was opened and the field TILE_NAME was exported to a raster image.
Process_Date: 200607
The map was reclassified so that the towns were assigned a value of 1 and the background was assigned a value of 0.
Process_Date: 200607
The map was updated to give a value of 1 to pixels in the following positions: (r: 344. c: 1017) and (r: 769, c: 1179). This value was assigned because these pixels were not classified in the conversion from vector to raster.
Process_Date: 200609
The map was converted to a vector polygon image using the RasterVector module in Idrisi. Background values were excluded.
Process_Date: 200609
Information relevant to the GIS data encoding
This layer provides a vector mask for the total Plum Island Ecosystem study areaHorizontal Coordinate System Name:NAD 1983 StatePlane Massachusetts Mainland FIPS 2001
Datum: D North American 1983
Reference Ellipsoid: Name: GRS 1980 Semi Axis: 6378137.0
Meridian: Greenwich
Projection Name : Lambert Conformal Conic
