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Reducing Wildfire Risk to Forest Ecosystem Services, California, 2018

Identification Information
Citation
Originator
Publication Date
20180101
Title
Reducing Wildfire Risk to Forest Ecosystem Services, California, 2018
Geospatial Data Presentation Form
raster digital data
Collection Title
California Department of Forestry and Fire Protection, GIS Maps Data
Publication Information
Publisher
Fire and Resource Assessment Program (Calif.)
Online Linkage
https://purl.stanford.edu/nw945zv2996
Abstract
This Priority Landscape (PL) prioritizes watersheds for potential treatment to reduce wildfire risk based on threats and assets to forested lands. Ranking: The ranking varies from 1 (least risk) to 5 (greatest risk). Lands such as conifer woodlands (e.g. juniper and pinyon-juniper), oak woodlands (blue oak woodland, valley oak woodland, coastal oak woodland, etc.), shrublands, grasslands, were not included. In addition, only forested lands with a fire return interval departure (FRID) of class 2 or greater were included. This ensures that the areas most in need of treatment to restore natural fire regimes and improve ecological functions are prioritized. Assets: Surface water value: Watersheds (HUC12s) were ranked based on surface drinking water value from the USDA Forest Service's Forests to Faucet data, https://www.fs.fed.us/ecosystemservices/FS_Efforts/forests2faucets.shtml Carbon storage: Estimated amount of carbon in the forest that is in living trees above the ground was spatially imputed into a GIS layer from Forest Service FIA data by Wilson et al. (2013) using a gradient nearest neighbor (GNN) technique. See Wilson, B.T., C.W. Woodall, and D.M. Griffith, Imputing forest carbon stock estimates from inventory plots to a nationally continuous coverage. Carbon Balance and Management, 2013. 8(1): p. 15. Standing timber: Shows the estimated commercial timber volume on lands available for harvesting. Standing Timber was was primarily derived from LEMMA Structure Maps (https://lemma.forestry.oregonstate.edu/data/structure-maps) that also used Forest Service FIA data and a GNN methodology (2012 vintage). LEMMA commercial timber volume was reduced for areas of high fire severity burns through 2017 (from FRAP), BAER imagery for areas of high severity wildfires that have occurred in 2018 (from:https://fsapps.nwcg.gov/afm/baer/download.php), and Aerial Detection Survey data of areas of high tree mortality (also subsequent to 2012). Lands not available for timber harvest were removed, including southern California and South Central Coast counties with no viable timber processing facilities. Site quality: This shows the productivity of timberland, based upon potential volume of wood (i.e. cubic feet) that can be produced per acre in a year. Site Class GIS data was produced by Wilson from Forest Service FIA data (using the same methods as for the Carbon storage layer), based upon FIA attribute SITECLCD – site productivity class code. It shows the potential timber volume produced at culmination of mean annual increment, in the standard classes used by the USFS. Large trees: Derived from FRAP vegetation layer FVEG15 (WHRSIZE), which in turn (for this attribute) came from CALVEG data of the USFS. Tree size class scores were 1=(6-11" DBH), 3=(11-24" DBH), and 5=(over 24" DBH). Threats: Fire threat: FRAP fire threat data (fthrt14_2) was derived from a combination of FRAP surface fuels data and large fire probability from the Fire Simulation (FSim) system developed by the US Forest Service Missoula, Montana Fire Sciences Laboratory. Fire Return Interval Departure (FRID): FRID shows the deviation from historic averages of fire occurrence. FRID from USFS Region 5 was used to prioritize areas most in need of treatment. FRID scores of 2, 3, and 4 were assigned scores of 1, 3, and 5 respectively. Composite Ranks: All assets were combined and the result ranked from 1 to 5 to derive a composite asset. Likewise, all threats were combined the results ranked from 1 to 5 to create a composite threat. The composite asset layer and composite threat ranks were then combined and classified to a final priority landscape rank for each 30m pixel. Watershed Ranking: A zonal mean of pixel ranks was then calculated for HUC12 watersheds (the smallest consistently delineated watershed, average approximately 24,000 acres). The end result is that each watershed is ranked from 1 (lowest threat) to 5 (highest threat) based on the combination of assets and threats and averaged by watershed. Watershed boundaries used were from the National Hydrography Dataset Watershed Boundary Dataset. This dataset was developed in 2018 to support the California Assessment of Forest and Rangelands.
Temporal Extent
Currentness Reference
publication date
Time Instant
20180101
Bounding Box
West
-124.506094
East
-113.498472
North
42.068840
South
32.423745
Theme Keyword
Fire risk assessment
Theme Keyword Thesaurus
lcsh
Theme Keyword
boundaries
Theme Keyword Thesaurus
ISO 19115 Topic Categories
Place Keyword
California
Place Keyword Thesaurus
geonames
Temporal Keyword
Access Restrictions
COPYRIGHT 2014, 2015, 2016, 2017, 2018, 2019, 2020 CALIFORNIA STATE PARKS, ALL RIGHTS RESERVED. These datasets and materials (“Materials”) have been developed by the State of California, Department of Parks and Recreation (“DPR”) for uses beneficial to DPR and as a public service to enhance open government, transparency and accountability. DPR is also known as California State Parks (“CSP”).All Materials are made available on an “as is” basis, on the express condition that users who view, download, transfer or otherwise access or use the Materials expressly accept these Terms of Use and DisclaimersTERMS OF USEAll materials contained herein are protected by the United States Copyright Law, may not be sold or altered, and must be attributed to CSP. These Materials are intended for free distribution for personal or public sector use. Commercial uses of these Materials must be approved by CSP in advance; contact geodata@parks.ca.govfor permission.DATA WARRANTY DISCLAIMERCSP strives to ensure that published Materials are accurate, but makes no warranty, representation or guaranty of any type as to the content, accuracy, timeliness, completeness or fitness for any particular purpose or use, nor shall any such warranty be implied, including, without limitation, the implied warranties of merchantability and fitness for a particular purpose. All warranties are specifically disclaimed. DATA CURRENCY DISCLAIMERThese Materials may be updated at irregular intervals. All users should check for updates regularly and ensure the most current version of the Materials is being used.LIABILITY DISCLAIMERCSP disclaims any responsibility or legal liability to users for damages of any kind, including lost profits, lost savings, business interruption, or any other incidental or consequential damages relating to the providing of the Materials or the use of it. CSP expressly disclaims any responsibility to defend or indemnify users against claims of others based on users’ copying, reliance, distribution, or other use of any of the Materials. Users assume the risk of using these Materials and shall have no remedy at law or equity against CSP in case the Materials provided are inaccurate, incomplete or otherwise defective.
Use Restrictions
None
Status
Complete
Point of Contact
Contact Organization
Fire and Resource Assessment Program (Calif.)
Contact Telephone
916 999 9999
Contact Electronic Mail Address
geodata@parks.ca.gov
Credit
Fire and Resource Assessment Program (Calif.). (2018). Reducing Wildfire Risk to Forest Ecosystem Services, California, 2018. Fire and Resource Assessment Program (Calif.). Available at: https://purl.stanford.edu/nw945zv2996
Native Data Set Environment
Version 6.2 (Build 9200) ; Esri ArcGIS 10.4.1.5686
Collection
Title
California Department of Forestry and Fire Protection, GIS Maps Data
Spatial Data Organization Information
Direct Spatial Reference Method
Raster
Point and Vector Object Information
SDTS Terms Description
SDTS Point and Vector Object Type
Entity point
Raster Object Information
Raster Object Type
Grid Cell
Row Count
35152
Column Count
30467
Entity and Attribute Information
Entity Type
Entity Type Label
PL_ReduceWildfireRisksToEcosystems18_1.tif.vat
Attributes
OID
Internal feature number. (Sequential unique whole numbers that are automatically generated.)
Definition Source
Esri
Value
Count
Distribution Information
Distributor
Stanford Geospatial Center
Name
Metadata Reference Information
Metadata Date
20200323
Metadata Contact
Contact Information
Contact Organization Primary
Contact Organization
Stanford Geospatial Center
Contact Address
Address
Mitchell Bldg. 2nd floor
Address
397 Panama Mall
City
Stanford
State or Province
California
Postal Code
94305
Country
US
Contact Voice Telephone
650-723-2746
Contact Electronic Mail Address
brannerlibrary@stanford.edu
Metadata Standard Name
FGDC Content Standard for Digital Geospatial Metadata
Metadata Standard Version
FGDC-STD-001-1998

Reducing Wildfire Risk to Forest Ecosystem Services, California, 2018

Identification Information

Citation
Title
Reducing Wildfire Risk to Forest Ecosystem Services, California, 2018
Originator
Fire and Resource Assessment Program (Calif.)
Publisher
Fire and Resource Assessment Program (Calif.)
Publication Date
2018-01-01
Identifier
https://purl.stanford.edu/nw945zv2996
Geospatial Data Presentation Form
mapDigital
Collection Title
California Department of Forestry and Fire Protection, GIS Maps Data
Abstract
This Priority Landscape (PL) prioritizes watersheds for potential treatment to reduce wildfire risk based on threats and assets to forested lands. Ranking: The ranking varies from 1 (least risk) to 5 (greatest risk). Lands such as conifer woodlands (e.g. juniper and pinyon-juniper), oak woodlands (blue oak woodland, valley oak woodland, coastal oak woodland, etc.), shrublands, grasslands, were not included. In addition, only forested lands with a fire return interval departure (FRID) of class 2 or greater were included. This ensures that the areas most in need of treatment to restore natural fire regimes and improve ecological functions are prioritized. Assets: Surface water value: Watersheds (HUC12s) were ranked based on surface drinking water value from the USDA Forest Service's Forests to Faucet data, https://www.fs.fed.us/ecosystemservices/FS_Efforts/forests2faucets.shtml Carbon storage: Estimated amount of carbon in the forest that is in living trees above the ground was spatially imputed into a GIS layer from Forest Service FIA data by Wilson et al. (2013) using a gradient nearest neighbor (GNN) technique. See Wilson, B.T., C.W. Woodall, and D.M. Griffith, Imputing forest carbon stock estimates from inventory plots to a nationally continuous coverage. Carbon Balance and Management, 2013. 8(1): p. 15. Standing timber: Shows the estimated commercial timber volume on lands available for harvesting. Standing Timber was was primarily derived from LEMMA Structure Maps (https://lemma.forestry.oregonstate.edu/data/structure-maps) that also used Forest Service FIA data and a GNN methodology (2012 vintage). LEMMA commercial timber volume was reduced for areas of high fire severity burns through 2017 (from FRAP), BAER imagery for areas of high severity wildfires that have occurred in 2018 (from:https://fsapps.nwcg.gov/afm/baer/download.php), and Aerial Detection Survey data of areas of high tree mortality (also subsequent to 2012). Lands not available for timber harvest were removed, including southern California and South Central Coast counties with no viable timber processing facilities. Site quality: This shows the productivity of timberland, based upon potential volume of wood (i.e. cubic feet) that can be produced per acre in a year. Site Class GIS data was produced by Wilson from Forest Service FIA data (using the same methods as for the Carbon storage layer), based upon FIA attribute SITECLCD – site productivity class code. It shows the potential timber volume produced at culmination of mean annual increment, in the standard classes used by the USFS. Large trees: Derived from FRAP vegetation layer FVEG15 (WHRSIZE), which in turn (for this attribute) came from CALVEG data of the USFS. Tree size class scores were 1=(6-11" DBH), 3=(11-24" DBH), and 5=(over 24" DBH). Threats: Fire threat: FRAP fire threat data (fthrt14_2) was derived from a combination of FRAP surface fuels data and large fire probability from the Fire Simulation (FSim) system developed by the US Forest Service Missoula, Montana Fire Sciences Laboratory. Fire Return Interval Departure (FRID): FRID shows the deviation from historic averages of fire occurrence. FRID from USFS Region 5 was used to prioritize areas most in need of treatment. FRID scores of 2, 3, and 4 were assigned scores of 1, 3, and 5 respectively. Composite Ranks: All assets were combined and the result ranked from 1 to 5 to derive a composite asset. Likewise, all threats were combined the results ranked from 1 to 5 to create a composite threat. The composite asset layer and composite threat ranks were then combined and classified to a final priority landscape rank for each 30m pixel. Watershed Ranking: A zonal mean of pixel ranks was then calculated for HUC12 watersheds (the smallest consistently delineated watershed, average approximately 24,000 acres). The end result is that each watershed is ranked from 1 (lowest threat) to 5 (highest threat) based on the combination of assets and threats and averaged by watershed. Watershed boundaries used were from the National Hydrography Dataset Watershed Boundary Dataset. This dataset was developed in 2018 to support the California Assessment of Forest and Rangelands.
Temporal Extent
Currentness Reference
publication date
Time Instant
2018-01-01T00:00:00
Bounding Box
West
-124.506094
East
-113.498472
North
42.06884
South
32.423745
ISO Topic Category
boundaries
Place Keyword
California
Place Keyword Thesaurus
geonames
Theme Keyword
Fire risk assessment
Theme Keyword Thesaurus
lcsh
Legal Constraints
Use Restrictions
otherRestrictions
Other Restrictions
COPYRIGHT 2014, 2015, 2016, 2017, 2018, 2019, 2020 CALIFORNIA STATE PARKS, ALL RIGHTS RESERVED. These datasets and materials (“Materials”) have been developed by the State of California, Department of Parks and Recreation (“DPR”) for uses beneficial to DPR and as a public service to enhance open government, transparency and accountability. DPR is also known as California State Parks (“CSP”).All Materials are made available on an “as is” basis, on the express condition that users who view, download, transfer or otherwise access or use the Materials expressly accept these Terms of Use and DisclaimersTERMS OF USEAll materials contained herein are protected by the United States Copyright Law, may not be sold or altered, and must be attributed to CSP. These Materials are intended for free distribution for personal or public sector use. Commercial uses of these Materials must be approved by CSP in advance; contact geodata@parks.ca.govfor permission.DATA WARRANTY DISCLAIMERCSP strives to ensure that published Materials are accurate, but makes no warranty, representation or guaranty of any type as to the content, accuracy, timeliness, completeness or fitness for any particular purpose or use, nor shall any such warranty be implied, including, without limitation, the implied warranties of merchantability and fitness for a particular purpose. All warranties are specifically disclaimed. DATA CURRENCY DISCLAIMERThese Materials may be updated at irregular intervals. All users should check for updates regularly and ensure the most current version of the Materials is being used.LIABILITY DISCLAIMERCSP disclaims any responsibility or legal liability to users for damages of any kind, including lost profits, lost savings, business interruption, or any other incidental or consequential damages relating to the providing of the Materials or the use of it. CSP expressly disclaims any responsibility to defend or indemnify users against claims of others based on users’ copying, reliance, distribution, or other use of any of the Materials. Users assume the risk of using these Materials and shall have no remedy at law or equity against CSP in case the Materials provided are inaccurate, incomplete or otherwise defective.
Status
completed
Collection
Collection Title
California Department of Forestry and Fire Protection, GIS Maps Data
URL
https://purl.stanford.edu/ng146rv3289
Language
eng
Credit
Fire and Resource Assessment Program (Calif.). (2018). Reducing Wildfire Risk to Forest Ecosystem Services, California, 2018. Fire and Resource Assessment Program (Calif.). Available at: https://purl.stanford.edu/nw945zv2996
Point of Contact
Contact
Fire and Resource Assessment Program (Calif.)
Email
geodata@parks.ca.gov
Phone
916 999 9999

Spatial Reference Information

Reference System Identifier
Code
4326
Code Space
EPSG
Version
6.8(9.2.0)

Distribution Information

Format Name
Shapefile
Distributor
Stanford Geospatial Center
Online Access
Protocol
Name

Content Information

Content Type
thematicClassification

Spatial Representation Information

Vector
Topology Level
Vector Object Type
point
Vector Object Count

Metadata Reference Information

Hierarchy Level
dataset
Metadata File Identifier
edu.stanford.purl:nw945zv2996
Parent Identifier
https://purl.stanford.edu/ng146rv3289.mods
Dataset URI
https://purl.stanford.edu/nw945zv2996
Metadata Date Stamp
2020-03-23
Metadata Standard Name
ISO 19139 Geographic Information - Metadata - Implementation Specification
Metadata Standard Version
2007
Character Set
utf8
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