Primary Use of Open Space and Protected Land - Ipswich Watershed - Idrisi Raster File.

Summary

Short name: 

GIS_ip30_info_open_purpose

Abstract: 

This datalayer is part of a group of layers used for research in the Ipswich River Watershed. This datalayer shows the primary use of land that is defined as protected by MassGIS. (http://state.ma.us/mgis/). This layer has information derived from the Protected and Recreational Open Space town coverages provided by MassGIS. To provide information about the use of open space.

Citation Suggestion: 

Huffaker, D., Pontius, R. G., 2019. Primary Use of Open Space and Protected Land - Ipswich Watershed - Idrisi Raster File. Environmental Data Initiative. http://dx.doi.org/10.6073/pasta/29af1c877d9772dae149aa2aeda74251

Data set ID: 

260

EML revision ID: 

2

Data sources: 

GIS Data Archive Download: GIS_ip30_info_open_purpose.zip

The primary use of open space

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 “p_purp” 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 10 outside the study area.

9. Reclass to switch 0 and 10 values.

10. Edit Legend.

11. Save

Process_Date: June 4, 2002

 

Information relevant to the GIS data encoding

The primary use of open space 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 : 1152
Columns : 1692
Cell Geometry :pixel