Metadata Record Dublin Core Standard Title: LCMMP, Second Statewide Cycle, Change Image, 1994-03 Catalog Name: California Department of Forestry and Fire Protection OID: 713 CITATION INFORMATION Identifier: chg2 Title: LCMMP, Second Statewide Cycle, Change Image, 1994-03 Originator: CA Dept. of Forestry and Fire Protection & USDA Forest Service Publication Date: 2002 Edition: 1 Scale: 30m pixels Other Citation Details: Data is provided in two projections: Albers Equal Area, NAD27, and UTM NAD27 IDENTIFICATION INFORMATION Abstract: Landsat Thematic Mapper (TM) satellite imagery is used to locate magnitudes of land cover change within five-year time periods across all vegetation types and ownerships. These ArcInfo GRID data depict increases and decreases in vegetative cover over 5 year periods for 5 different project areas in California. The exact dates of TM imagery are contained in a supplementary Arc/Info regions coverage. Field data are collected to calibrate levels of change and to check the accuracy of change classes. Browse Graphic URL: http://frap.cdf.ca.gov/data/browsegraphic/chg2.gif Purpose: The California Land Cover Mapping & Monitoring Program (LCMMP) is a collaborative effort of the USDA Forest Service and CDF to map and assess changes in California's vegetation. This effort provides monitoring data for regional assessment across ownerships and vegetation types. We also identify the cause of changes using current fire perimeter data, USFS harvest/plantation data and fieldwork. By revisiting each project area on a five year schedule, it is possible to detect trends and conversion rates of vegetation. Supplemental Info: Additional products include publications for each project area and time frame, and county change maps. Additional information about the program and these related products can be obtained at; http://frap.cdf. ca.gov/projects/change_detection/changedetectfr.html. Time Period Start: 1/1/1994 Time Period End: 8/1/2003 Currentness: Ground Condition Progress: Complete Update Frequency: Continually Place: California Themes: Forests and forestry, Timber, Nontimber forest resources, Conifers, Fire, Vegetation, Wildfires, Forest management User Keywords: Habitat loss, Monitoring, Development impacts, landscape vegetation changes, Mortality, Range Lands, remote sensing, TM Access Limitations: No Restrictions Use Limitations: FRAP disclaimer Read disclaimer within data dictionary supplied when data are downloaded from FRAP site Contact Information Data Contact: LCMMP Monitoring Coordinator Organization: CDF-FRAP Phone: 916-445-5366 Fax: 916-324-1180 Email: Mark.Rosenberg@fire.ca.gov Url: http://frap.cdf.ca.gov/ Address: 1920 20th Street 1920 20th Street City: Sacramento State: California Postal Code: 95814 Country: USA DISTRIBUTION INFORMATION Online Linkage: http://frap.cdf.ca.gov/data.html Size (MB): 3 MB Distribution Format: ARC/INFO Export Ordering Instructions: Obtain on-line or request through distribution contact Contact Information Distribution Contact: FRAP data librarian Organization: CDF-FRAP Phone: 916-445-5342 Fax: 916-324-1180 Url: http://frap.cdf.ca.gov Address: 1920 20th Street 1920 20th Street City: Sacramento State: California Postal Code: 95814 Country: USA METADATA INFORMATION Date: 1/18/2002 Contact Information Metadata Contact: LCMMP Monitoring Coordinator Organization: CDF-FRAP Phone: 916-445-5366 Fax: 916-324-1180 Email: Mark.Rosenberg@fire.ca.gov Url: http://frap.cdf.ca.gov/ Address: 1920 20th Street 1920 20th Street City: Sacramento State: California Postal Code: 95814 Country: USA DATA DICTIONARY FEATURE TYPE: pixel MINUMUM MAPPING UNIT: Change areas mapped to 1 hectare (approx. 2.5 acres) Data provided in 30m pixels ACCURACY: Overall user's accuracy of change data: Cascade-Northeast - 84.5% DATABASE FIELDS: INPUT OUTPUT DATA DECI DESCRIPTION FIELD NAME WIDTH WIDTH TYPE MALS ---------- ----- ------ ---- ---- ---------------------------- VALUE 4 10 B COUNT 4 10 B CHG_CODE 3 3 I - Numeric value of change class CLASS_NAME 31 31 C - Full name of change class FIELD NAMES: CHG_CODE and CLASS_NAME CHG_CODE CLASS_NAME ----------- ------------------------- 1 71 to 100% cover decrease 2 41 to 70% cover decrease 3 16 to 40% cover decrease 4 +15 to -15% (Little or No Change) 5 16 to 40% cover increase 6 41 to 100% cover increase 7 Shrub/Grass Decrease > 15% 8 Shrub/Grass Increase > 15% 9 Non-veg Change Including Urban 15 Cloud/Shadow/Smoke NOTES ON PROJECTIONS: The native projection of the change data is UTM. Reprojecting these data to Albers can cause distortions in cell locations that give the appearance of an incorrect minumum mapping unit. As this projection is a different representation of the earth's surface, the actual cell locations are correct for the Albers projection. Projection parameters for the UTM and Albers are provided below. COORDINATE SYSTEM DESCRIPTIONS Projection UTM Zone 10 Datum NAD27 Units METERS Spheroid CLARKE1866 Projection ALBERS Datum NAD27 Units METERS Spheroid CLARKE1866 Parameters: 1st standard parallel 34 0 0.000 2nd standard parallel 40 30 0.000 central meridian -120 00 00.00 latitude of projection's origin 0 0 0.000 false easting (meters) 0.00000 false northing (meters) -4000000.0000 DISCLAIMER The State of California and the Department of Forestry and Fire Protection make no representations or warranties regarding the accuracy of data or maps. The user will not seek to hold the State or the Department liable under any circumstances for any damages with respect to any claim by the user or any third party on account of or arising from the use of data or maps. The user will cite the Department of Forestry and Fire Protection as the original source of the data, but will clearly denote cases where the original data have been updated, modified, or in any way altered from the original condition. There are no restrictions on distribution of the data by users. However, users are encouraged to refer others to the Department of Forestry and Fire Protection to acquire the data, in case updated data become available.