LANDFIRE 2022 Vegetation Departure (VDep) CONUS
Metadata also available as
Metadata:
- Identification_Information:
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- Citation:
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- Citation_Information:
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- Originator:
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Landscape Fire and Resource Management Planning Tools (LANDFIRE)
- Originator: Earth Resources Observation and Science Center (EROS)
- Originator: U.S. Geological Survey (USGS)
- Originator: Timothy Hatten, USGS PM
- Publication_Date: 20231214
- Title: LANDFIRE 2022 Vegetation Departure (VDep) CONUS
- Edition: LF 2022
- Geospatial_Data_Presentation_Form: raster digital data
- Publication_Information:
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- Publication_Place: Sioux Falls, SD
- Publisher:
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Earth Resources Observation and Science Center (EROS), U.S. Geological Survey
- Online_Linkage: https://www.landfire.gov
- Online_Linkage: https://doi.org/10.5066/P974JF8W
- Description:
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- Abstract:
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LANDFIRE’s (LF) 2022 Vegetation Departure (VDep) product categorizes departure between current vegetation condition and reference vegetation condition, according to the methods outlined in the Interagency Fire Regime Condition Class Guidebook (FRCC Guidebook (Hann et al 2010)). VDep differs from the FRCC Guidebook, however, because it is based on the departure of current vegetation condition only, whereas the FRCC Guidebook approach includes departure of current fire regimes for the reference period. For VDep, summary units are defined as a BioPhysical Setting (BpS) with identical reference condition values regardless of map zone. For example, when a BpS is present in map zone 1, 2, 4, 5, 6 and 8, the reference conditions for this BpS are identical in map zones 1, 2, 4, 5, and 8, those map zones become a summary unit for VDep computation. Since reference conditions are unique for this BpS in map zone 6, it is a separate summary unit for calculating VDep. Within each BpS summary unit, we compare the reference percentage of each Succession Class (SClass) to the current percentage, then the smaller of the two is summed to determine the similarity index for the BpS. This value is then subtracted from 100 to determine the departure value, VDep value is always between 0 and 100, with 100 representing maximum departure.
Reference conditions are derived from quantitative vegetation dynamics models that mimic native, pre-European colonization disturbance regimes. The current conditions are derived from the corresponding LF 2022 SClass data for each BpS. The proportion of the landscape occupied by each SClass, in each BpS unit, within each summary unit represents current condition of that SClass in VDep calculation. VDep is based entirely on the remaining area of each BpS unit that is occupied by valid SClasses. Each pixel in a BpS within a summary unit has the same VDep value.
- Purpose:
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The LANDFIRE 2022 Update (LF 2022) is designed to produce vegetation, disturbance, and fuels products that inform wildland fire and ecological decision systems. LF 2022 is another update to the LF 2016 Remap base map and LF 2020, it includes adjustments to vegetation and fuels in disturbed areas for disturbances recorded in 2021 and 2022. Disturbances in 2022 represent the first full fiscal year of disturbance. Transition rulesets for vegetation account for disturbances from 2017 to 2022 while fuel updates utilize 2012 to 2022 disturbances. In LF 2022 Existing Vegetation Type (EVT) Ecological Systems classifications are the same as LF 2020, except in areas where agriculture or urban areas have changed. LF 2022 contains the first application of the “zero to one” Time Since Disturbance (TSD) rules for EVC and EVH transition rules. Both LF Existing Vegetation Cover (EVC) and Height (EVH), as well as all fuels products, are 2023 capable in disturbed areas.
LF 2022 products are designed to facilitate national and regional level strategic fire and resource management planning and reporting of management activities. The principal purposes of the products include providing, 1) national level, landscape scale geospatial products to support fire and fuels management planning, and 2) consistent fuels products to support fire planning, analysis, and budgeting to evaluate fire management alternatives.
Products are created at a 30-meter raster; however, the applicability of products varies by location and specific use. LF products were designed to support 1) national (all states) strategic planning, 2) regional (single large states or groups of smaller states), and 3) strategic/tactical planning for large sub regional landscapes and Fire Management Units (FMUs) (such as significant portions of states or multiple federal administrative entities). The applicability of LF products to support fire and land management planning on smaller areas will vary by product, location, and specific use. Managers and planners must evaluate LF products according to the scale and requirements specific to their needs.
- Supplemental_Information:
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Beginning in the LF 2020 update and continued into the LF 2022 update, all CONUS products are created with a 90km buffer into both Canada and Mexico. The data in this buffer was last updated in LF 2020. LF 2022 AK products also feature a 90km buffer into Canada, but this buffer was last updated with new data in LF 2016 Remap.
- Time_Period_of_Content:
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- Time_Period_Information:
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- Single_Date/Time:
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- Calendar_Date: 2022
- Currentness_Reference: ground condition
- Status:
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- Progress: Complete
- Maintenance_and_Update_Frequency: Annually
- Spatial_Domain:
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- Bounding_Coordinates:
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- West_Bounding_Coordinate: -127.9878
- East_Bounding_Coordinate: -65.2544
- North_Bounding_Coordinate: 51.6497
- South_Bounding_Coordinate: 22.7654
- Keywords:
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- Theme:
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- Theme_Keyword_Thesaurus: ISO 19115 Topic Category
- Theme_Keyword: imageryBaseMapsEarthCover
- Theme_Keyword: biota
- Theme:
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- Theme_Keyword_Thesaurus: USGS Thesaurus
- Theme_Keyword: fires
- Theme_Keyword: hazard preparedness
- Theme_Keyword: remote sensing
- Theme_Keyword: image collections
- Theme_Keyword: geospatial datasets
- Theme_Keyword: geographic information systems
- Theme:
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- Theme_Keyword_Thesaurus: None
- Theme_Keyword: raster digital data
- Theme_Keyword: Vegetation Departure
- Theme_Keyword: VDep
- Theme_Keyword: U.S. Geological Survey (USGS)
- Theme_Keyword: U.S. Forest Service (USFS)
- Theme_Keyword: LANDFIRE 2022
- Theme_Keyword: LF 2022
- Place:
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- Place_Keyword_Thesaurus: Common geographic areas
- Place_Keyword: US
- Place_Keyword: CONUS
- Place_Keyword: United States
- Place_Keyword: Conterminous United States
- Place_Keyword: Continental U.S.
- Access_Constraints: None
- Use_Constraints: None
- Point_of_Contact:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization:
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LANDFIRE, Earth Resources Observation and Science Center (EROS), U.S. Geological Survey
- Contact_Position: Customer Service Representative
- Contact_Address:
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- Address_Type: physical
- Address: 47914 252nd Street
- City: Sioux Falls
- State_or_Province: SD
- Postal_Code: 57198
- Country: U.S.
- Contact_Voice_Telephone: 605-594-6151
- Contact_Electronic_Mail_Address: helpdesk@landfire.gov
- Data_Set_Credit:
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These products were created by the LF team at USGS EROS, Sioux Falls, SD. Refer to the contact information throughout this metadata to contact the LF team.
- Security_Information:
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- Security_Classification_System: None in place
- Security_Classification: Unclassified
- Security_Handling_Description:
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If there is ever doubt, contact the LF Help Desk at helpdesk@landfire.gov
- Native_Data_Set_Environment: Microsoft Windows 10; ESRI ArcGIS Suite
- Cross_Reference:
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- Citation_Information:
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- Originator:
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National Interagency Fuels, Fire, and Vegetation Technology Transfer (NIFTT)
- Publication_Date: 2010
- Title:
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Interagency Fire Regime Condition Class Guidebook (FRCC Guidebook)
- Edition: 3
- Geospatial_Data_Presentation_Form: publication
- Other_Citation_Details:
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Hann, Wendel J.; Shlisky, Ayn; Havlina, Doug; Schon, Kathy; Barrett, Stephen W.; DeMeo, Thomas E.; Pohl, Kelly; Menakis, James P.; Hamilton, D.; Jones, J.; Levesque, Marc; Frame, Christine K. 2008. Interagency Fire Regime Condition Class (FRCC) guidebook. Version 1.3.0. 119 p. Homepage of the Interagency and The Nature Conservancy Fire Regime Condition Class website, USDA Forest Service, U.S. Department of the Interior, The Nature Conservancy, and Systems for Environmental Management
Hann et al. 2010
- Data_Quality_Information:
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- Attribute_Accuracy:
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- Attribute_Accuracy_Report:
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Products were tested to ensure that each attribute is represented consistently across all data sets. Attributes were not validated against in person observations.
- Logical_Consistency_Report:
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The products were pixel "truth" tested for consistency of land or water characteristics across all products.
- Completeness_Report:
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Products were formally tested to ensure that valid data was produced for all pixels. Each product was then validated and tested for duplicates, omissions, and errors.
- Lineage:
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- Process_Step:
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- Process_Description:
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Beginning with the new base map of LF 2016 Remap (LF Remap), products were created using recent advances in image compositing, tiling algorithms, and faster computing hardware to ensure that LF products remained relevant. LF Remap leveraged the Landsat archive, lidar data, and user contributed field plot data compiled into the LF Reference Database (LFRDB), to create new vegetation products.
Reference resources included, but were not limited to, Forest Inventory and Analysis (FIA) program plot data (USFS https://www.fia.fs.usda.gov/), Landsat Dynamic Surface Water Extent [(DSWE) USGS https://www.usgs.gov/landsat-missions], the National Land Cover Database [(NLCD) USGS https://www.mrlc.gov/data], and National Agricultural Statistics Service [(NASS) USDA - https://www.nass.usda.gov/].
For LF 2022 reference resources included, but were not limited to, Monitoring Trends in Burn Severity [(MTBS) USGS https://mtbs.gov/], Burned Area Reflectance Classification [(BARC) USFS and USGS] and Rapid Assessment of Vegetation Condition after Wildfire [(RAVG) https://burnseverity.cr.usgs.gov/ravg/], National Agricultural Statistics Service [(NASS) USDA - https://www.nass.usda.gov/] for 2022, PAD 3.0 for federal and protected lands identification [https://doi.org/10.5066/P9Q9LQ4B], and a rasterized version of the Microsoft building footprint for 2022 to update developed areas [https://github.com/Microsoft/USBuildingFootprints]. Disturbances in LF 2022 were also identified with LF's remote sensing of landscape change (RSLC), which identifies spectral change in vegetation using automated algorithms and image analyst review of the entire country with Landsat imagery. Burned Area (BA) data from Landsat was also used and national events (polygons) were used to identify areas and types of disturbance.
To read more about LF reference resources go to https://www.landfire.gov/reference.php. Information about LF 2022 product testing is available by request or via the website at https://www.landfire.gov.
- Process_Date: 20231214
- Spatial_Data_Organization_Information:
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- Direct_Spatial_Reference_Method: Raster
- Raster_Object_Information:
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- Raster_Object_Type: Grid Cell
- Row_Count: 101538
- Column_Count: 156335
- Spatial_Reference_Information:
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- Horizontal_Coordinate_System_Definition:
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- Planar:
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- Map_Projection:
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- Map_Projection_Name: Albers Conical Equal Area
- Albers_Conical_Equal_Area:
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- Standard_Parallel: 29.5
- Standard_Parallel: 45.5
- Longitude_of_Central_Meridian: -96.0
- Latitude_of_Projection_Origin: 23.0
- False_Easting: 0
- False_Northing: 0
- Planar_Coordinate_Information:
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- Planar_Coordinate_Encoding_Method: row and column
- Coordinate_Representation:
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- Abscissa_Resolution: 30
- Ordinate_Resolution: 30
- Planar_Distance_Units: meters
- Geodetic_Model:
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- Horizontal_Datum_Name: North American Datum of 1983 (NAD 83)
- Ellipsoid_Name: Geodetic Reference System 1980
- Semi-major_Axis: 6378137.000000
- Denominator_of_Flattening_Ratio: 298.257222
- Vertical_Coordinate_System_Definition:
- Entity_and_Attribute_Information:
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- Detailed_Description:
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- Entity_Type:
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- Entity_Type_Label: VDep
- Entity_Type_Definition: LF 2022 VDep attributes spreadsheet.
- Entity_Type_Definition_Source: LF 2022
- Attribute:
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- Attribute_Label: VALUE
- Attribute_Definition: Value. 0 to 100 is percent departure.
- Attribute_Definition_Source: LF 2022
- Attribute_Domain_Values:
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- Enumerated_Domain:
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- Enumerated_Domain_Value: -9999
- Enumerated_Domain_Value_Definition: No Data
- Enumerated_Domain_Value_Definition_Source: LF 2022
- Attribute_Domain_Values:
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- Range_Domain:
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- Range_Domain_Minimum: -1111
- Range_Domain_Maximum: 180
- Attribute:
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- Attribute_Label: LABEL
- Attribute_Definition: VDep label. 0 to 100 is percent departure.
- Attribute_Definition_Source: LF 2022
- Attribute_Domain_Values:
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- Range_Domain:
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- Range_Domain_Minimum: 0
- Range_Domain_Maximum: 100
- Attribute:
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- Attribute_Label: DESCRIPTION
- Attribute_Definition:
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VDep categorizes departure between current vegetation conditions and reference vegetation conditions.
- Attribute_Definition_Source: LF 2022
- Attribute_Domain_Values:
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- Unrepresentable_Domain: See the ADD for additional information.
- Attribute:
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- Attribute_Label: R
- Attribute_Definition: Red color value/255
- Attribute_Definition_Source: LF 2022
- Attribute_Domain_Values:
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- Range_Domain:
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- Range_Domain_Minimum: 0
- Range_Domain_Maximum: 255
- Attribute:
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- Attribute_Label: G
- Attribute_Definition: Green color value/255
- Attribute_Definition_Source: LF 2022
- Attribute_Domain_Values:
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- Range_Domain:
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- Range_Domain_Minimum: 0
- Range_Domain_Maximum: 255
- Attribute:
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- Attribute_Label: B
- Attribute_Definition: Blue color value/255
- Attribute_Definition_Source: LF 2022
- Attribute_Domain_Values:
-
- Range_Domain:
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- Range_Domain_Minimum: 0
- Range_Domain_Maximum: 255
- Attribute:
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- Attribute_Label: RED
- Attribute_Definition: Red color value.
- Attribute_Definition_Source: LF 2022
- Attribute_Domain_Values:
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- Range_Domain:
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- Range_Domain_Minimum: 0.0
- Range_Domain_Maximum: 1.0
- Attribute:
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- Attribute_Label: GREEN
- Attribute_Definition: Green color value.
- Attribute_Definition_Source: LF 2020
- Attribute_Domain_Values:
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- Range_Domain:
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- Range_Domain_Minimum: 0.0
- Range_Domain_Maximum: 1.0
- Attribute:
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- Attribute_Label: BLUE
- Attribute_Definition: Blue color value.
- Attribute_Definition_Source: LF 2020
- Attribute_Domain_Values:
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- Range_Domain:
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- Range_Domain_Minimum: 0.0
- Range_Domain_Maximum: 1.0
- Overview_Description:
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- Entity_and_Attribute_Overview:
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LANDFIRE (LF) 2022 Vegetation Departure (VDep) CONUS. An Attribute Table is included with each product download as a .csv and embedded in the metadata. The Attribute Data Dictionary (ADD) can be found at https://www.landfire.gov/.
- Entity_and_Attribute_Detail_Citation: https://www.landfire.gov/vdep.php
- Distribution_Information:
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- Distributor:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization: U.S. Geological Survey
- Contact_Person: GS ScienceBase
- Contact_Address:
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- Address_Type: mailing address
- Address: Denver Federal Center, Building 810, Mail Stop 302
- City: Denver
- State_or_Province: CO
- Postal_Code: 80225
- Country: United States
- Contact_Voice_Telephone: 1-888-275-8747
- Contact_Electronic_Mail_Address: sciencebase@usgs.gov
- Distribution_Liability:
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This product is reproduced from geospatial information prepared by the U.S. Department of the Interior (DOI) USGS EROS. By removing the contents of this package or taking receipt of these files via electronic file transfer methods, you understand that the data stored on this media can be updated at any time. Represented features may not be in an accurate geographic location. USGS EROS makes no expressed or implied warranty, including warranty of merchantability and fitness, with respect to the character, function, or capabilities of the data or their appropriateness for any user's purposes. USGS EROS reserves the right to correct, update, modify, or replace this geospatial information without notification.
Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty.
- Standard_Order_Process:
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- Digital_Form:
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- Digital_Transfer_Information:
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- Format_Name: ARCG
- Format_Version_Date: 20231214
- Format_Specification: LF 2022
- Digital_Transfer_Option:
-
- Online_Option:
-
- Computer_Contact_Information:
-
- Network_Address:
-
- Network_Resource_Name: https://doi.org/10.5066/P974JF8W
- Fees: none
- Metadata_Reference_Information:
-
- Metadata_Date: 20231214
- Metadata_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization:
-
LANDFIRE, Earth Resources Observation and Science Center (EROS), U.S. Geological Survey
- Contact_Position: Customer Service Representative
- Contact_Address:
-
- Address_Type: physical
- Address: 47914 252nd Street
- City: Sioux Falls
- State_or_Province: SD
- Postal_Code: 57198
- Country: U.S.
- Contact_Voice_Telephone: 605-594-6151
- Contact_Electronic_Mail_Address: helpdesk@landfire.gov
- Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
- Metadata_Standard_Version: FGDC-STD-001-1998
- Metadata_Time_Convention: local time
- Metadata_Security_Information:
-
- Metadata_Security_Classification_System: None
- Metadata_Security_Classification: Unclassified
- Metadata_Security_Handling_Description: None
Generated by mp version 2.9.12 on Mon Nov 27 09:35:08 2023