HERO Digital Data Sets: Truly Protected Land in Central Massachusetts Data Set Types: Cartographic/Imagery 1. Data Set Overview: Data Set Title: Truly Protected Land of Central Massachusetts Data Set Description: NAD 83 ArcView shapefile containing truly protected parcels in Worcester County. Objective/Purpose: To refine MassGIS Protected and Recreational Open Space Layer, thereby excluding land that is not protected permanently for conservation, conservation and recreation, or water supply protection. Summary of Parameters: Several parameters describing level of protection; see Data Characteristics. Discussion: NA Related data sets: Land Cover Richness For Truly Protected Land 2. HERO Data Set Investigators: Names: Melissa Floyd Type of Investigating: Town data for Central Massachusetts was downloaded from MassGIS (http://www.magnet.state.ma.us/mgis/osp.htm). Methodology of Losing Ground (Steele et al. 1999) was used. Time of Investigation: Fall 1999 - Spring 2000 3. Data Set Origin: Source data title: Protected and Recreational Open Space Layer Source Organization/Agency/Person: Jane Pfister, Program Coordinator Name: MassGIS Address: 20 Somerset St., 3rd Floor, Boston, MA 02108 Email: firstname.lastname@example.org WWW: http://www.magnet.state.ma.us/mgis/osp.htm Source Data Investigator: NA Address: NA Phone: NA Fax: NA Email: NA Data Acquisition Method: Downloaded from MassGIS website. Original Data Acquisition Method: ORIGINAL SOURCE MANUSCRIPTS and ORIGINAL PRODUCTION State and federal lands were originally compiled in 1988 from 1:25,000 scale maps by the Department of Regional Planning and Landscape Architecture at the University of Massachusetts at Amherst. The data were verified and are maintained by each agency of the Executive Office of Environmental Affairs (EOEA). Each agency maintains its own maps according to its own standard operating procedures and the accuracy of these maps varies. Some parcels were drafted onto USGS quadrangles from detailed surveys, while in other cases the exact property boundary is not known. The compilation process that produced a unified manuscript faithfully reproduced the property boundaries as represented on the agencies' maps. The DFWELE cartographer then compiled onto this manuscript the land holdings of the National Park Service (NPS), US Fish & Wildlife Service (USFWS), and The Trustees of Reservations (TTOR, incomplete). Updating of this coverage began in the fall of 1989 and is ongoing. Also included in the original open space datalayer were some community and local lands within Berkshire and Essex Counties and the Nashua River Basin. The production methodology varied subtly by region. Compilation of open space holdings in Essex County had already been done by the Essex County Greenbelt Association (ECGA), and these 1:25,000 scale maps were used as the manuscript for Essex County. Manuscripts for Berkshire County were compiled by the Berkshire County Cooperative Extension Service in cooperation with town assessors, conservation commissions, and local land trusts. Manuscripts for the Nashua River Basin were prepared jointly by DFWELE and the Department of Food and Agriculture (DFA) from town assessors maps. (http://www.magnet.state.ma.us/mgis/osp.htm) CURRENT SOURCE MANUSCRIPTS and PRODUCTION METHODOLOGY The open space datalayer is divided into 351 town panels and is held in the MassGIS TOWN library. Existing information (both geographic and attribute) continues to be updated with the assistance of volunteers at the local level and with the assistance of regional planning commissions. The resulting data are variable in their accuracy and completeness. Geographic data sources are predominantly town tax assessor’s maps and existing open space plans. We maintain a record of all source maps used. Often these maps have been recompiled by the volunteers onto a standard 1:25,000 basemap produced by MassGIS. The data are then digitized from these basemaps. In other cases data may be digitized from a map supplied by our volunteer if this map meets minimum digitizing requirements. Increasingly, data are also pulled into the open space coverage from preexisting digital data layers provided by a municipality, regional planning agency, or state agency. All polygons bordering a road, stream, pond, town boundary, or coastline are snapped to that feature and the coincident arcs are coded according to the coincident feature. The production methodology used with each town coverage and an evaluation of the quality of source materials can be found in the OS_STATUS INFO file included in the data export. (http://www.magnet.state.ma.us/mgis/osp.htm) Original Data Format: ArcView Shapefiles 4.Data Description: Data Format: ArcView shapefile Data Structure: Data consists of shapefile with attribute table Spatial Characteristics: Worcester County (town tiles merged) Spatial Coverage: min. X:132700 max. X:201800 min. Y:862000 max. Y:941000 Spatial Coverage Map: NA Spatial Resolution/Scale: 30 m Projection: spc83ma1 Grid Description: NA Cols: Rows: Temporal Characteristics: Temporal Coverage: 1988 - July 1999 Data Characteristics: 1. STATUS FIELDS Fields Code - Description STATUS_OWNER (SFO) STATUS_MANAGER STATUS_1 STATUS_2 STATUS_3 F- Federal S - State C - County M - Municipal N - Private Non profit P - Private for profit B - Public Nonprofit O - None of the above (e.g. joint ownership) X - Unknown I - Inholding (a piece of unprotected property surrounded on all sides by a protected property or a recreational facility) W - Water body (entire polygon is water) Unconfirmed: 1 - EOEA or EOEA (alternate state agencies) 2 - EOEA or non-profit 3 - EOEA or municipality 4 - EOEA or private land-owner 2. INTEREST FIELDS Field Code - Description INT_1 CR - Conservation Restriction INT_2 APR - Agricultural Preservation Restriction INT_3 CAPR - Conservation/Agricultural Preservation Restriction AQR - Aquifer Protection AR - Air Rights HPR - Historic Preservation EASE - Easement (official restriction only) WR - Watershed Restriction (local) WR - Wetlands Restriction (Program) OLI - Other Legal Restriction 3. GRANT PROGRAMS Field Code - Description GRANTPROG1 State programs: GRANTPROG2 ALA - Aquifer Lands Acquisition SH - State Self-help USH - Urban Self-help Federal programs: LWCF - Land and Water Conservation Fund FF - Other federal funds 4. PUBLIC ACCESS TYPES Field Code - Description PUB_ACCESS (PA) Y - Yes (open to public) N - No (not open to public) L - Limited (membership only) X - Unknown 1 - Public 2 - Public (residents only) 3 - Public (seasonal) 4 - Private (public welcome) 5 - Private (members only) 6 - None 5. PRIMARY PURPOSE Field Code - Description PRIMARY_PURP (PP) R - Recreation (activities are facility based) C - Conservation (activities are non-facility based) B - Recreation and Conservation H - Historical/Cultural A - Agriculture W - Water Supply Protection S - Scenic (official designation only) O - Other (explain) X - Unknown 6.LEVEL OF PROTECTION Field Code - Description LEV_PROT (LP) P - Inperpetuity T - Temporary (Chapter 6161A61Bsome CRs) L - Limited (by something other than time) N - None X - Unknown 7. CHAPTER 61 TYPE Field Code - Description CH61_PROG (Forestry) F- CH61 (Forestry) A - CH61A (Agriculture) B - CH61B (Recreation) Y - In Chapter 61 program, but specific land use unknown 8. OWNERSHIP ABBREVIATIONS Field Code/Description FEE_OWNER (FO) eg. M<town-id> SD= Town of <town-id> School Department MANAGER eg. M004 = Town of Adams OTHER_1 eg. M004SD = Town of Adams school department OTHER_2 MGLT = Mount Grace Land Trust OTHER_3 (A file containing all abbreviations used in these fields, such as SD and MGLT above is available upon request.) 9. ACQUISITION SUPPORTPROVIDED BY THE EXECUTIVE OFFICE OF ENVIRONMENTAL AFFAIRS Field Code -Description EOEAINVOLV 1 - a. Fee ownership or other legal interest held by an EOEA agency or b. DCS contributed or administered acquisition monies 2 - Conservation restriction registered with DCS and not held by an EOEA agency (http://www.magnet.state.ma.us/mgis/osp.htm) Data Set Completeness: Complete Data Set Consistency: Consistent 5. Data Manipulation: Formulae: NA Derivation Techniques and Algorithms: NA Processing Steps: Export polygons whose attributes consist of permanent protection for primary purposes of conservation, conservation and recreation, or water supply protection. Processing Changes: NA Calculations: NA Special Corrections/Adjustments: NA Calculated Variables: NA Graphs and Plots: NA 6. Errors: Sources of Error: Incompleteness of source data caused some polygons to be excluded. Quality Assessment: Because it is an ongoing project, incompleteness for some entries should be expected (http://www.magnet.state.ma.us/mgis/osp.htm). Data Validation by Source: Confidence Level/Accuracy Judgment: High Measurement Error for Parameters: NA Additional Quality Assessments: NA Data Verification by HERO project: Checked some polygons with other maps to confirm that they were at the least, not developed land or water. 7. Notes: Limitations of the Data: Known Problems with the Data: see Quality Assessment Usage Guidance: MassGIS recommends this to be used for town planning purposes. Any Other Relevant Information about the Study: NA 8. Application of the data set: These data are very useful for most statewide and regional planning purposes. However, they are not a legal record of ownership, and the user should understand that parcel representations are generally not based on property surveys. The data are also useful in projects examining attributes of truly protected land – a growing concern is the disappearance of open, healthy land due to urban sprawl. 9. Future Modifications and Plans: None 10. Software: ArcView 11. Data Access: Contact Information: Address: Phone: Fax: Email: Procedures for Obtaining Data:Download from HERO website. 12. References: The published references for the source data are: MassGIS website. (http://www.magnet.state.ma.us/mgis/osp.htm) Other references used in metadata preparation: Steele, J. et al. 1999.Losing Ground: An Analysis of Recent Rates and Patterns of Development and Their Effects on Open Space in Massachusetts. Full Technical Report. Massachusetts Audubon Society: Lincoln, MA. 13. Glossary of terms: Truly protected land – land deemed by attributes (determined by Mass Audubon) to be ecologically healthy and protected from development permanently.