Land Use

Land Use, 37 Categories - Ipswich and Parker River Watersheds - 1999 - Idrisi Raster File.


This datalayer is part of a group of layers used for research in the Ipswich River Watershed. This layer was created in July 2006 for Marine Biological Laboratory (MBL) in Woods Hole, MA. This layer shows the land use, 37 categories, for the towns in the Ipswich River Watershed and the Parker River Watershed for 1999. This datalayer has complete information. Provide land use information for general mapping and display, and landuse change analysis.

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Provide land use information for general mapping and display, and landuse change analysis.

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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.

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 LU37_1999 was exported to a raster image.

The map was updated to give a value of 3 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. They were assigned membership to the foreset class based on visual analysis of the original vector data.

Process_Date: Jul 2006

Information relevant to the GIS data encoding

This layer shows land use for the Ipswich Study area, which includes the Parker River, Ipswich River, and Rowley River watersheds,
based upon MassGIS classification and grouped in accordance with the Anderson: Level I convention.Horizontal 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 : 1476
Columns : 1692
Cell Geometry :pixel


Progress: Complete. Maintenance and Update Frequency: As needed. Edition: 1st

Metadata converted from MSWord documentation on 1.15.2013 by M. Hayn using "PIE_WordMetaConvert" package developed for conversion of data to EML 2.1.0 in R environment.

8/1/2019 corrected lat/long inversion for Ipswich Watershed boundary box.


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