Status and Custodianship of Designated Open Space - Ipswich Watershed - Idrisi Raster File.

Summary

Short name: 

GIS_ip30_info_open_status

Abstract: 

This datalayer is part of a group of layers used for research in the Ipswich River Watershed. This datalayer shows the Status for areas that are defined as Protected and Recreational Open Space by MassGIS (www.state.ma.us/mgis). This layer is derived from the Protected and Recreational Open Space layer provided by for each town. The values are from the status field (status_fee) field in the data table.

Citation Suggestion: 

Huffaker, D., , Pontius, R. G. 2019. Status and Custodianship of Designated Open Space - Ipswich Watershed - Idrisi Raster File. Environmental Data Initiative. http://dx.doi.org/10.6073/pasta/e51f28cfba23677af5f7ddb776657663

Data set ID: 

261

EML revision ID: 

2

Data sources: 

GIS Data Archive Download: GIS_ip30_info_open_status.zip

This layer shows the status of open space in the Ipswich Watershed

Categories

PIE Research Areas: 

Keywords: 

GIS Section: 

Section: 

Dates

Date Range: 

Tuesday, January 1, 2002 to Tuesday, December 31, 2002

Publication Date: 

Thursday, August 1, 2019
People

Owner/Creator: 

Robert G. Pontius Jr.
Related
Downloads
Methodology

Methods: 

1. Download Protected and Recreational Open Space layer for each town in the watershed (www.state.ma.us/mgis)

2 Add each towns ‘osp(#)p1.shp file.

3. Merge individual towns layers into one complete coverage with table for all values.

4. Union open space layer with a layer of MassGIS towns.

5. Convert to grid using “status_fee” field as value.

6. Extract to IDRISI

7. Reclass back ground values from -9999 to 0.

8. Overlay with inverse mask with a value of 9 outside the study area.

9. Reclass to switch 0 and 7 values.

10. Edit Legend.

11. Save

Process_Date: June 10, 2002

 

Information relevant to the GIS data encoding

This layer shows the status of open space 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