rr_chg1_ncu

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator:The original landcover change layer was developed as a coverage named chg1 by CA Dept. of Forestry and Fire. Rr_chg1_ncu.shp was created by Circuit Rider Productions, Inc. Rr_chg1_ncu represents the portion of thelayer within the Russian River basin. This metadata file incorporates information that is specific to this layer as well as information that is available in the original metadata file for the lancover change layer (chg1.txt). The portions of this metadata file that borrow text from chg1.txt are indicated in quotation marks.

Publication_Date:

Original data source: 2002

RRGIS: September 2002

Title: rr_chg1_ncu

Geospatial_Data_Presentation_Form: vector digital data

Online_Linkage: \\D3PJ9F11\C\rrgis\Landuse_Landcover\rr_chg1_ncu.shp

Description:

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 4 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/chg1.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 Information:

"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_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date:

1991-1998

Currentness_Reference:

Landsat Thematic Mapper (TM) satellite imagery with a scale of 30 m pixels

Status:

Progress: complete

Maintenance_and_Update_Frequency:

none scheduled

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -123.387866

East_Bounding_Coordinate: -122.522658

North_Bounding_Coordinate: 39.399217

South_Bounding_Coordinate: 38.298024

Keywords:

Theme:

Theme_Keyword_Thesaurus:

none

Theme_Keyword:

Monitoring, Development impacts, Hardwoods, landscape vegetation changes, Mortality, remote sensing, TM, Russian River, watershed, Mendocino county, Sonoma county

Access_Constraints:

none

Use_Constraints:

The responsibility of the risks associated in regards to the results and representations of using this type of spatial data is understood by the user. In all cases, the user should refer to the associated metadata files or the original source data for accuracy, currentness and appropriate contact information. CRP shall not have any liability to any person or entity with respect to liability, loss or damage caused or alleged to be caused directly or indirectly by information contained in this file.

Native_Data_Set_Environment:

Microsoft Windows 2000 Version 5.1 (Build 2600) ; ESRI ArcCatalog 8.2.0.700

Data_Quality_Information:

Lineage:

Process_Step:

Process_Description: Dataset copied.

Source_Used_Citation_Abbreviation: C:\GIS_Temp\FRAP\first_clipped

Process_Step:

Process_Description: Dataset copied.

Source_Used_Citation_Abbreviation: C:\GIS_Temp\FRAP\rr_chg1_ncu

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: G-polygon

Point_and_Vector_Object_Count: 5046

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 10

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.999600

Longitude_of_Central_Meridian: -123.000000

Latitude_of_Projection_Origin: 0.000000

False_Easting: 500000.000000

False_Northing: 0.000000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.000256

Ordinate_Resolution: 0.000256

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: Geodetic Reference System 80

Semi-major_Axis: 6378137.000000

Denominator_of_Flattening_Ratio: 298.257222

Entity_and_Attribute_Information:

Detailed_Description:

"DATA DICTIONARY

FEATURE TYPE: Pixel (GRID Format)

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:
Southern Sierra - No accuracy
Northeastern CA - 89.3%
South Coast - 89.6%
North Coast - 89.8%

DATABASE FIELDS FOR SOUTHERN SIERRA AND NORTHEASTERN CA:

INPUT OUTPUT DATA DECI DESCRIPTION
ITEM NAME WIDTH WIDTH TYPE MALS
---------- ----- ------ ---- ---- ------------------------------
CLASS_NAME 32 32 C 0 Full name of change class
CHANGE_CODE 3 3 C 0 Abbreviated name of change class
CHANGE_NBR 2 2 B 0 Change class number

Southern Sierra
CHANGE_NBR CLASS_NAME CHANGE_CODE Display Color

1 Large Decrease in Vegetation ldv Red
2 Moderate Decrease in Vegetation mdv Dk Orange
3 Small Decrease in Vegetation sdv Lt Orange
4 Little or No Change lnc Lt Gray
5 Small Increase in Vegetation siv Lt Green
6 Moderate Increase in Vegetation miv Olive
7 Large Increase in Vegetation liv Dk Green
8 Non-veg Change nvc Lavender
9 Terrain Shadow or Wet tsw Brown

Northeastern CA
CHANGE_NBR CLASS_NAME CHANGE_CODE Display Color

1 Large Decrease in Vegetation ldv Red
2 Moderate Decrease in Vegetation mdv Dk Orange
3 Small Decrease in Vegetation sdv Lt Orange
4 Little or No Change lnc Lt Gray
5 Small Increase in Vegetation siv Lt Green
6 Moderate Increase in Vegetation miv Olive
7 Large Increase in Vegetation liv Dk Green
8 Non-veg Change nvc Lavender
15 Cloud or Cloud Shadow cs Dk Gray

DATABASE FIELDS FOR SOUTH COAST AND NORTH COAST:

INPUT OUTPUT DATA DECI DESCRIPTION
ITEM NAME WIDTH WIDTH TYPE MALS
---------- ----- ------ ---- ---- ------------------------------
CHG_CODE 3 3 I - Numeric value of change class
CLASS_NAME 50 50 C - Full name of change class

South Coast
CHG_CODE CLASS_NAME Display Color

1 -71 to -100 % CC (canopy cover) Red
2 -41 to -70 % CC Dk Orange
3 -16 to -40 % CC Lt Orange
4 +15 to -15 % CC (Little or No Change) Lt Gray
5 +16 to +40 % CC Lt Green
6 +41 to +100 % CC Green
7 Shrub/Grass Decrease > 15 % Gold
8 Shrub/Grass Increase > 15 % Olive
9 Change within Existing Urban Area Violet
15 Cloud or Cloud Shadow Dk Gray

North Coast
CHG_CODE CLASS_NAME

1 -71 to -100% (conifer or hardwood canopy cover change)
2 -41 to -70% (conifer or hardwood canopy cover change)
3 -16 to -40% (conifer or hardwood canopy cover change)
4 +15 to -15% (Little or No Change)
5 +16 to +40% (conifer or hardwood canopy cover change)
6 +41 to +100% (conifer or hardwood canopy cover change)
7 Shrub/Grass Decrease > 15 %
8 Shrub/Grass Increase > 15 %
10 Non-veg Change / Change Within Existing Urban
15 Cloud/Fog/Smoke"

Distribution_Information:

Resource_Description: Downloadable Data

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Transfer_Size: 1.887

Metadata_Reference_Information:

Metadata_Date: 20020928

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

 

Circuit Rider Productions, Inc.

Contact_Person: David Bennett, GIS Coordinator

Contact_Address:

Address_Type:

9619 Old Redwood Highway

City: Windsor

State_or_Province: California

Postal_Code: 95492

Contact_Voice_Telephone:

707-838-6641

 

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile