wetlands

Wetland Areas - Ipswich Watershed - Idrisi Raster File

Abstract: 

This map shows the location of wetland areas inside of the Ipswich River watershed sudy area.

Data set ID: 

267

Keywords: 

Short name: 

GIS_ip30_info_wetlands

Purpose: 

This map can be used to show where wetlands are located within the Ipswich Study Area.

Data sources: 

GIS_ip30_info_wetlands

Methods: 

1. Overlay (*) ip30_noinfo_wetlands and ip30_info_townmask

2. Crosstab the overlay output with ip30_info_townmask

3. Reclass the crosstab output code 2 to code 28 and all else 0

4. Overlay (+) category 28 and the overlay output from step 1 and that = ip30_info_wetlands

Process_Date: 7/9/2001

 

Information relevant to the GIS data encoding

Wetland areas in the Ipswich watershedHorizontal 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
Number of bands : 1
Raster Origin : Lower Left
Rows : 1152
Columns : 1692
Cell Geometry :pixel

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