LANDFIRE Limited Update Forest Canopy Bulk Density (CBD) CONUS

Metadata also available as

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator:
LANDFIRE, Earth Resources Observation and Science Center (EROS), U.S. Geological Survey
Publication_Date: 20210601
Title: LANDFIRE Limited Update Forest Canopy Bulk Density (CBD) CONUS
Edition: LF 2019L
Geospatial_Data_Presentation_Form: raster digital data
Publication_Information:
Publication_Place: Sioux Falls, SD
Publisher:
Earth Resources Observation and Science Center (EROS), U.S. Geological Survey
Online_Linkage: https://www.landfire.gov
Description:
Abstract:
LANDFIRE's (LF) 2019 Limited Update (2019L) Canopy Bulk Density (CBD) describes the mass of available canopy fuel per unit canopy volume that would burn in a crown fire. A spatially explicit map of CBD supplies information used in fire behavior models to determine the spread characteristics of crown fires across the landscape. The CBD mapping process derives field referenced estimates of canopy characteristics through LF Reference Database (LFRDB) plot analysis. Utilizing the LFRDB plots, field referenced CBD values are computed for each plot with the canopy fuel estimation software FuelCalc. In FuelCalc, for tree species that have no crown biomass, an equation for a species with a similar genus is used as a substitute. Species widely considered to be resistant to fire are excluded, for example, Acer and Populus spp. are excluded from the canopy fuel profile because these species are considered relatively inflammable and therefore unavailable. In LF 2019L, fuel products were created with LF 2016 Remap (LF Remap) vegetation in non-disturbed areas, but pre-disturbance vegetation was used in disturbed areas using fuel rule sets. More information about 2019L can be found at https://landfire.gov/lf_limited.php.
LF Remap Annual Disturbance products are incorporated into CBD to provide informed changes by disturbance type, severity, and time since disturbance (TSD). The capable fuels process calculates TSD assignments for disturbed areas using an "effective year". Year 2021 fuels, for example, may be calculated for the year 2021. This process considers all the existing disturbances included in 2019L and assigns fuels to the pre-disturbance vegetation based on the adjusted TSD, making the products "2021 capable fuels." By synchronizing TSDs for surface and canopy fuels, these refinements improve performance of fire behavior modeling. More information about capable fuels can be found at https://www.landfire.gov/lf_remap.php.
Purpose:
LF 2019L is the first update to the LF 2016 Remap conterminous United States (CONUS) extent. This update includes a limited set of products that represent circa 2019 ground conditions. Read more about LF 2019L here (https://landfire.gov/lf_limited.php).
LF 2019L 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:
In LF 2019L, fuel products were created with LF 2016 Remap vegetation in non-disturbed areas, but pre-disturbance vegetation was used in disturbed areas. This product has 2021 capable fuels functionality. Units are (kg/m^3 )*100 . To retrieve the real data value, user must divide the raster values in this data set by 100. The conversion from (kg/m^3 ) to (lb/ft^3 ) is 0.061728 (multiply (kg/m^3 ) by 0.061728). CBD Data Range: 0 - 0.45 (kg/m^3 ) (0 - 45 on the map) 0.45 = thematic class of all values greater than 0.45 meters
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2019
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: Biennially
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -127.9878
East_Bounding_Coordinate: -65.2544
North_Bounding_Coordinate: 51.6497
South_Bounding_Coordinate: 22.7654
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: imageryBaseMapsEarthCover
Theme_Keyword: biota
Theme:
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:
Theme_Keyword_Thesaurus: None
Theme_Keyword: raster digital data
Theme_Keyword: Canopy Bulk Density
Theme_Keyword: CBD
Theme_Keyword: U.S. Geological Survey (USGS)
Theme_Keyword: U.S. Forest Service (USFS)
Theme_Keyword: 2019 Limited Update
Theme_Keyword: 2019L
Place:
Place_Keyword_Thesaurus: Common geographic areas
Place_Keyword: US
Place_Keyword: CONUS
Place_Keyword: United States
Place_Keyword: Continental U.S.
Place_Keyword: Conterminous United States
Access_Constraints: None
Use_Constraints: None
Point_of_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
Data_Set_Credit:
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:
Security_Classification_System: None in place
Security_Classification: Unclassified
Security_Handling_Description:
If there is ever doubt, contact the LF Help Desk at helpdesk@landfire.gov
Native_Data_Set_Environment: Microsoft Windows 10; ESRI ArcCatalog 10.6.1
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
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:
The products were pixel "truth" tested for consistency of land or water characteristics across all products.
Completeness_Report:
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:
Process_Step:
Process_Description:
Beginning in 2019 LF 2019L products were created using recent advances in image compositing, tiling algorithms, and faster computing hardware to ensure that LF products remained relevant. LF 2019L leveraged the Landsat archive, lidar data, and user contributed field plot data compiled into the LF Reference Database (LFRDB), to create new base map vegetation products. Reference resources included, but were not limited to, Forest Inventory and Analysis (FIA) program plot data (USFS https://fia.fs.fed.us/), Landsat Dynamic Surface Water Extent [(DSWE) USGS https://www.usgs.gov/core-science-systems/nli/landsat], the National Land Cover Dataset [(NLCD) USGS https://www.mrlc.gov/data], and National Agricultural Statistics Service [(NASS) USDA - https://www.nass.usda.gov/]. To read more about LF reference resources go to https://www.landfire.gov/reference.php. Information about LF 2019L product testing is available by request or via the website at https://www.landfire.gov.
Process_Date: 20210601
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Grid Cell
Row_Count: 20729
Column_Count: 24853
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Albers Conical Equal Area
Albers_Conical_Equal_Area:
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:
Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:
Abscissa_Resolution: 30
Ordinate_Resolution: 30
Planar_Distance_Units: meters
Geodetic_Model:
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:
Detailed_Description:
Entity_Type:
Entity_Type_Label: CBD
Entity_Type_Definition: LF 2019L CBD attributes spreadsheet.
Entity_Type_Definition_Source: LF 2019L
Attribute:
Attribute_Label: VALUE
Attribute_Definition:
Forest Canopy Bulk Density (CBD) is the mass of available canopy fuel per unit canopy volume that would burn in a crown fire and values range from 0 to 45.
Attribute_Definition_Source: LF 2019L
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -9999
Enumerated_Domain_Value_Definition: No Data
Enumerated_Domain_Value_Definition_Source: LF 2019L
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 45
Attribute:
Attribute_Label: CBD_KGM3_X
Attribute_Definition: CBD is kilograms per meter cubed multiplied by 100.
Attribute_Definition_Source: LF 2019L
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: NoData
Enumerated_Domain_Value_Definition: No Data
Enumerated_Domain_Value_Definition_Source: LF 2019L
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Non-Forested
Enumerated_Domain_Value_Definition: Value is 0.
Enumerated_Domain_Value_Definition_Source: LF 2019L
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: CBD greater than =45
Enumerated_Domain_Value_Definition: Value is 45.
Enumerated_Domain_Value_Definition_Source: LF 2019L
Overview_Description:
Entity_and_Attribute_Overview:
LANDFIRE (LF) Remap Forest Canopy Bulk Density (CBD). An Attribute Table is included with each product download as a .dbf 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/cbd.php
Distribution_Information:
Distributor:
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
Distribution_Liability:
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.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ARCG
Format_Version_Date: 20210601
Format_Specification: LF 2019L
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: https://www.landfire.gov
Fees: none
Metadata_Reference_Information:
Metadata_Date: 20210601
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 Thu May 06 07:05:29 2021