Individual Towns that are Fully or Partially in the Ipswich and Parker River Watersheds - Idrisi Vector 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. This layer shows the boundaries for the towns in the Ipswich River Watershed and the Parker River Watershed. This data layer was created so that the town boundaries would correspond to the boundaries of the corresponding land use maps. This datalayer has complete information. Display town boundaries for the study area.

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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.
Process_Date: 200607

In ArcMap, the features in TOWNSFROMLU were brought combined based on the TILE_NAME field, using DISSOLVE.
Process_Date: 200609

The dissolved land use layer, which now shows town boundaries, was imported into Idrisi Kiliminjaro as a vector file. The .vdc file was edited to assign the names of each town to the proper polygon.
Process_Date: 200609



Information relevant to the GIS data encoding

This layer shows the areas of towns located in the Plum Island watersheds.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


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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