Remote Sensing Lab,
Pacific Southwest Region
Remote Sensing Lab,
Pacific Southwest Region
Table of Contents
Identification_Information Abstract Purpose Supplemental Information Data_Quality_Information Spatial_Data_Organization_Information Entity_and_Attribute_Information Detailed Description Overview Distribution_Information Metadata_Reference_Section
Identification_Information
Citation_Information Originator: Remote Sensing Lab, Region 5, USDA Forest Service Publication_Date: 6/1/04 Title: CALRISK03_1G Geospatial_Data_Presentation_Format: grid Publication_Information Publication_Place: Sacramento, CA Publisher: Remote Sensing Lab, USFSDescription Abstract The risk mapping effort was initiated in 1995 with the formation of a group of specialists from several disciplines including representatives from state and other federal agencies to map and identify risk to insect caused tree mortality. An area is defined to be at risk if 25% or more tree mortality (beyond the normal level of approximately 0.6% annually) is expected over the next 15 years. This effort developed a statewide insect mortality risk layer based upon rules and statistics developed for the National forests and expanded to cover all state and private forest land. Rule structures were based primarily upon stand density index and also included, precipitation, percent canopy cover of host species, and host type. Purpose The purpose of the risk mapping effort is to develop a geographic information system (GIS) database containing information needed for a strategic evaluation of forest health risk on all forested lands in California. Risk mapping is an iterative process that revises and fine-tunes the database as more and better information becomes available. Supplemental_Information Procedures_Used Updated calrisk02_1g for CA state wide risk grid using updated inventory and vegetation data. Done by You-Lee Kim at RSL. Methodology: Scientific literature, professional knowledge, and existing statistical data were used to develop models for mapping risk. The insect mortality risk grid is based upon rules and statistics developed for the National forests. The rule structures for most forests were based primarily upon stand density index (SDI) and also included precipitation, plantation information, elevation, and canopy cover by host type. SDI numbers were developed on a forest-by-forest basis based on the forest's integrated inventory data. SDI numbers were averaged for each strata which aggregates statistically similar vegetation structure classes and is cross-walked to vegetation layers for use in model development. Strata were used to assign SDI and basal area values. Vegetation data is synchronous with respect to inventory, vegetation maps, and strata map labels, and was used to assign host type and canopy cover information. The models were run using specific rule-sets developed for each forest by each forest. Because strata mapping is restricted to USFS lands only, an approach was developed to extend strata labeling to non-USFS lands. By extending strata labels beyond USFS boundaries, the associated SDI is extended beyond USFS boundaries, allowing insect risk modeling on a statewide scale. The approach used to aggregate USFS lands with non-USFS lands used eco-tile boundaries to expand forest by forest data into a statewide forest association layer. "Association" in the sense that the aggregation rules applied to the calveg map data in order to generate a strata label for any forest were used on the associated non-USFS eco-tile area. The rules used to associate a forest with an eco-tile(s) are: A. If a forest intersected a singular eco-tile, that tile became associated with the forest and received its strata labeling rules. B. If 2 or more forests intersected a tile, the area if the tile not intersected by a forest would be associated with the forest occupying the most area of the tile. C. If no forest boundary intersected the tile, and the tile contained model-able conifer types, the tile is associated with the closest forest. D. The tile boundaries stayed intact with the exception of the sierra foothills, where a single eco-tile intersected more than 4 forests. This tile was subdivided into smaller processing regions by using natural watershed boundaries. Yosemite and Sequoia-Kings Cyn. National Parks are not covered by the cooperative vegetation mapping program which produces the Calveg map product. These National Parks were processed using the California GAP dataset. This data has none of the strata label synchronicity problems found in the USFS vegetation data. However, this data is less straightforward and less detailed than the USFS's cooperative vegetation data. The GAP data-set provides a primary, secondary, and tertiary vegetation type with crown closure class values. In order to define crown closure for the stand, the lower bound class definitions for the 3 primary vegetation types were added together before rules were applied (see rule set in the appendix). Model Rule-sets: Sierran Forests: Stanislaus, Eldorado, Sierra NF (plus Yosemite NP) SDI >= 230 PP SDI >= 333 MP SDI >= 375 WF SDI >= 440 RF SDI >= 300 MF SDI >= 223 LP SDI >= 230 JP SDI >= 300 DF Add the following rules for Staninslaus NF Calaveras, Groveland, Miwok Ranger Districts All plantations >= 5 years old (from 1999) Eldorado NF Pacific Ranger District All plantations >= 10 years old (from 1999) Lake Tahoe Basin Management Unit SDI >= 230 JP, WF, MP, MF SDI >= 440 RF SDI >= 196 LP Sequoia NF and Sequoia-Kings Canyon NP SDI >= 230 PP, JP SDI >= 300 MF, MP SDI >= 300 WF SDI >= 375 RF Red Mtn burn area Northwest Sequoia NP (as described on map including Hume Lake RD and Sequoia-Kings NP SDI >= 205 LP Southeast portion (as described on map, division at Kern R. and Kern/Tulare Co) SDI >= 230 MP PP JP SDI >= 350 LP SDI >= 375 RF SDI >= 300 WF MF Inyo NF SDI >= 230 EP, JP, PP, WF, RF, MF SDI >= 205 LP Lassen and Plumas NF Eastside (precip <= 30 ) All conifer SDI >= 230 Transition ( > 30 <= 45 precip.) SDI >= 440 RF SDI >= 314 PP SDI >= 300 DF SDI >= 417 WF SDI >= 314 JP SDI >= 228 LP SDI >= 280 MF Westside (precipitation > 45) SDI >= 560 RF SDI >= 399 PP SDI >= 382 DF SDI >= 531 WF SDI >= 400 JP SDI >= 283 LP SDI >= 380 MF Tahoe NF Plantations > 25 years (from 1999) Eastside (precip <= 30 ) All conifer SDI >= 230 Transition ( > 30 <= 40 precip.) SDI >= 350 RF SDI >= 314 PP SDI >= 300 DF SDI >= 417 WF SDI >= 314 JP SDI >= 228 LP SDI >= 280 MF Westside (precipitation > 40) SDI >= 350 RF SDI >= 399 PP SDI >= 382 DF SDI >= 531 WF SDI >= 400 JP SDI >= 283 LP SDI >= 380 MF Modoc NF Warner Mountains and Big valley RD SDI >= 230 All conifers Double Head RD Precip < 40 inches SDI >= 230 All conifers Northern forests (Shasta - Trinity, Mendocino, Six Rivers, Klamath) SDI >= 355 MF SDI >= 205 LP SDI >= 440 RF SDI >= 230 PP, JP All plantations >= 10 years old Southern California: Elevation < 8500 ft. Precipitation >= 20 inches annual All conifer All PJ CC >= 50% JP All PC All Plantations Sequoia - Kings Canyon National Park: SMC, WFR, LPN= 70% (#7) SCN, JPN, EPN, PPN= 60% (#6) RFR= 80% (#8) Yosemite National Park: SMC, WFR= 70% (#7) LP LPN, SCN, PPN, JPN, EPN= 60% (#6) RFR= 80% (#8) Revisions Reviews_Applied_to_Data This data has been reviewed to ensure conformance to the source data. Related_Spatial_and_Tabular_Data_Sets References_Cited Notes --------------------------------------------------------------------------- USFS: United States Forest Service RSL: Remote Sensing Lab, Sacramento, CA. --------------------------------------------------------------------------- This metadata report was created with the use of Arc:DOCUMENT. This format is designed to be compliant with the Federal Geographic Data Committee Spatial Data Transfer Standard. Document file preparer: Carol Clark Date: 6/1/04 Document file updated by: Date: Document file verified by: Date: --------------------------------------------------------------------------- Time_Period_of_Content Currentness_Reference This dataset is current as of 6/1/04 Status Progress: Complete Maintenance_and_Update_Frequency Maintenance and updates are conducted on an as needed basis. Spatial_Domain Bounding_Coordinates West_Bounding_Coordinate: -124.30209798 East_Bounding_Coordinate: -114.63031029 North_Bounding_Coordinate: 42.12155258 South_Bounding_Coordinate: 32.47176696
Keywords Theme Theme_Keyword_Thesaurus: None Theme_Keyword: insect, risk Place Place_Keyword_Thesaurus: None Place_Keyword: State of California Stratum Stratum_Keyword_Thesaurus: None Stratum_Keyword: Temporal Temporal_Keyword_Thesaurus: None Temporal_Keyword:
Access_Constraints None. Use_Constraints There is no accuracy assessment associated with this data at this time. Point_of_Contact: See Distribution_Information for contact information.
Data_Set_Credit Security_Information Security_Classification_System: None Security_Classification: UNCLASSIFIED Security_Handling_Description: None
Native_Data_Set_Environment: AIX UNIX, ARC/INFO version 8.3
Cross_Reference Originator: Remote Sensing Lab, Region 5, USDA Forest Service Publication_Date: 6/1/04 Publication_Time: Title: CALRISK03_1G Edition: Geospatial_Data_Presentation_Form: GRID Series_Information Series_Name: Issue_Identification: Publication_Information Publication_Place: Sacramento, CA Publisher: Remote Sensing Lab, USFS Other_Citation_Details: Online_Linkage: Larger_Work_Citation:
Data_Quality_Information
Attribute_Accuracy Attribute_Accuracy_Report: See Entity_Attribute_InformationQuantitative_Attribute_Accuracy_Assessment Attribute_Accuracy_Value: See Explanation Attribute_Accuracy_Explanation: Attribute accuracy is described, where present, with each attribute defined in the Entity and Attribute Section.
Logical_Consistency_Report: Not applicable for raster data.
Completeness_Report See Entity and Attribute Overview Positional_Accuracy Horizontal_Positional_Accuracy Horizontal_Positional_Accuracy_Report:
Vertical_Positional_Accuracy Vertical_Positional_Accuracy_Report: Lineage: See Supplemental_Information for overview.Process_Steps Process_Step Process_Description: YLKIM GRIDINSERT F:\RISK_MODEL\SCSA\SCSA_RISK NSST_RISK CALRISK04_1G UPDATE Source_Used_Citation_Abbreviation:None Process_Date: 20040507 Process_Time: 1423 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: YLKIM GRIDINSERT F:\RISK_MODEL\SCSA\SCSA_RISK NSST_RISK CALRISK04_1G UPDATE Source_Used_Citation_Abbreviation:None Process_Date: 20040507 Process_Time: 1423 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: KEEPER DOCUMENT CALRISK03_1G COPY /FSFILES/REF/LIBRARY/GIS/CALCOVS/RSL/FS/CA Source_Used_Citation_Abbreviation:None Process_Date: 20040602 Process_Time: 1311 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: KEEPER DOCUMENT CALRISK03_1G UPDATE KEEPER Source_Used_Citation_Abbreviation:None Process_Date: 20040602 Process_Time: 1317 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: KEEPER DOCUMENT CALRISK03_1G UPDATE KEEPER Source_Used_Citation_Abbreviation:None Process_Date: 20040602 Process_Time: 1333 Source_Produced_Citation_Abbreviation: None
Cloud_Cover N/A.
Spatial_Data_Organization_Information
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information: Raster_Object_Type: Grid Cell Row_Count: 35613 Column_Count: 26714
Spatial_Reference_Information
Horizontal_Coordinate_System_DefinitionPlanar Map_Projection: Map_Projection_Name: ALBERS Longitude_of_Central_Meridian: -120 Latitude_of_Projection_Origin: 0 Latitude_of_First_Standard_Parallel: 34 Latitude_of_Second_Standard_Parallel: 40.5 False_Easting: 0.00000 False_Northing: -4000000.00000 Geodetic Model Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: GRS1980
Entity_and_Attribute_Information
Detailed_Description Entity_Type Entity_Type_Label: CALRISK03_1G.VAT Entity_Type_Definition: value attribute table Entity_Type_Definition_Source: ARC/INFO Attribute: Attribute_Label: - Attribute_Definition: value attribute table Attribute_Definition_Source: ARC/INFO Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: - Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: VALUE Attribute_Definition: Internal feature number for GRIDs Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Integer 0 = no risk 1 = risk Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: COUNT Attribute_Definition: Number of GRID cells of a VALUE Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Integer Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Entity_Type Entity_Type_Label: CALRISK03_1G.STA Entity_Type_Definition: Statistics table Entity_Type_Definition_Source: GRID Attribute: Attribute_Label: - Attribute_Definition: Statistics table Attribute_Definition_Source: GRID Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: - Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: MIN Attribute_Definition: Minimum GRID cell VALUE Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Real number Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: MAX Attribute_Definition: Maximum GRID cell VALUE Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Real number Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: MEAN Attribute_Definition: Mean GRID cell VALUE Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Real number Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: STDV Attribute_Definition: Standard Deviation of GRID cell VALUEs Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Positive real number Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source:Overview_Description Entity_and_Attribute_Overview items CALRISK03_1G.vat COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME INDEXED? 1 VALUE 4 10 B - Indexed 5 COUNT 4 10 B - - list CALRISK03_1G.vat VALUE COUNT Record VALUE COUNT 1 0 205325498 2 1 16493411 Value 0 = no risk Value 1 = risk Entity_and_Attribute_Detail_Citation: Not Available
Distribution_Information
Distributor Contact_Person_Primary Contact_Person: Carol Clark Contact_Organization: USDA Forest Service, Remote Sensing Lab Contact_Position: GIS librarian Contact_Address Address_Type: mailing and physical address Address: 1920 20th St City: Sacramento State_or_Province: California Postal_Code: 95814 Country: USA Contact_Voice_Telephone: 916-454-0813 Contact_Facsimile_Telephone: 916-454-0820 Contact_Electronic_Mail_Address: carol_clark@fs.fed.us Hours_of_Service: 0800-1700, M-F Resource_Description: RSL datasets: GIS data Standard_Order_Process Digital_Form Digital_Transfer_Information Format_Name: ARC/INFO Export Format Format_Version_Number: 8.3 Format_Version_Date: 12/18/02 File_Decompression_Technique: Unix Gzip or Windows Winzip Digital_Transfer_Option Online_Option Computer_Contact_Information Network_Address Network_Resource_Name: http://fsweb.rsl.r5.fs.fed.us/ Access_Instructions: Contact distributor for details Online_Computer_and_Operating_System: IBM AIX Version 4.3 Custom_Order_Process: Contact distributor for details Technical_Prerequisites: Working knowledge of ArcInfo
Metadata_Reference_Section
Metadata_Date: 19040602 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Lisa Fischer Contact_Organization: State and Private Forestry Contact_Position: Remote Sensing/GIS Specialist Contact_Address: Address_Type: mailing address Address: 1920 20th Street City: Sacramento State_or_Province: California Postal_Code: 95814 Country: USA Contact_Voice_Telephone: (916) 454-0803 Contact_Electronic_Mail_Address: lisafischer@fs.fed.us Hours_of_Service: 0800-1700 M-F Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: 19940608 Metadata_Time_Convention: Local Time Metadata_Security_Information: Metadata_Security_Classification_System: None Metadata_Security_Classification: UNCLASSIFIED Metadata_Security_Handling_Description: None
Last modified: 04-06-02.13:33:55.Wed