RxCADRE 2011 and 2012: Predicted surface fuel maps

Metadata:

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Within Measurement Uncertainty: For details regarding accuracy of clip plot fuel measurements, see Ottmar and Restaino (2014); for details regarding accuracy of lidar data measurements, see Hudak et al. (2015). The 2011 clip plot location data were recorded with field-grade Garmin GPS units using waypoint averaging to record locations to within 1-2 meter accuracy, while the 2012 clip plot data were located via resource-grade Trimble GeoXT units with the ability to differentially correct locations to within 0.25-meter accuracy.

Between Measurement Uncertainty: The model used to predict total surface fuel loads across the full extent of the lidar collections explained 32% of the variance in total surface fuel load at measured clip plot locations, with a RMSE of 3.73 Milligrams per hectare (Hudak et al. 2016).

Hudak, Andrew T.; Bright, Benjamin C. 2014. RxCADRE 2008, 2011, and 2012: Clip plot locations. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2014-0030

Ottmar, Roger D.; Restaino, Joseph C. 2014. RxCADRE 2008, 2011, and 2012: Ground fuel measurements from prescribed fires. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2014-0028

Hudak, Andrew T.; Bright, Benjamin, C.; Satterberg, Kevin L. 2015. RxCADRE 2008, 2011, and 2012: Lidar data and derived raster products. Fort Collins, CO: Forest Service Research Data Archive. Updated 08 September 2016. https://doi.org/10.2737/RDS-2015-0010

Hudak, Andrew T.; Dickinson, Matthew B.; Bright, Benjamin C.; Kremens, Robert L.; Loudermilk, E. Louise; O'Brien, Joseph J.; Hornsby, Benjamin S.; Ottmar, Roger D. 2016. Measurements relating fire radiative energy density and surface fuel consumption - RxCADRE 2011 and 2012. International Journal of Wildland Fire. 25: 25-37. https://doi.org/10.1071/wf14159

Logical_Consistency_Report:

Three small burn blocks (S3, S4 and S5) were burned on 1 November 2012, 2 days before the lidar survey; therefore, clip plot fuel measures at the 75 clip plots surrounding these three blocks were excluded from the predictive model (Hudak et al. 2016).

Hudak, Andrew T.; Dickinson, Matthew B.; Bright, Benjamin C.; Kremens, Robert L.; Loudermilk, E. Louise; O'Brien, Joseph J.; Hornsby, Benjamin S.; Ottmar, Roger D. 2016. Measurements relating fire radiative energy density and surface fuel consumption - RxCADRE 2011 and 2012. International Journal of Wildland Fire. 25: 25-37. https://doi.org/10.1071/wf14159

Completeness_Report:

By design, there were 12 pre- and post-fire clip plots established at the highly instrumented plots (HIP) established in the L2F block burned in 2012. However, there are only 11 plot observations for L2F-HIP3 because plot 12 was never established.

Lineage:

Process_Step:

Process_Description:

The creation of surface fuel maps from sample plots and airborne lidar data is described in Hudak et al. (2016). Briefly, surface fuel loads, as measured on clip plots in 2011 and 2012 by Ottmar and Restaino (2014), were predicted from lidar data acquired 5-6 February, 2011 and November 3, 2012 (Hudak et al. 2015) via multiple linear regression modeling, using nine statistical metrics of surface fuel height and density derived from the lidar points within 3-meter (m) radius of the clip plot centers (Hudak and Bright 2015). Models were then applied to the entire lidar dataset, from which the same metrics were generated from the lidar points binned within 2.5-m x 2.5-m raster grid cells, to map surface fuel.

Surface fuel loads were measured by destructive harvesting in 1x1-m clip plots within all burn blocks except L2F, where clip plots were 0.5-m x 0.5-m. The pre- and post-fire clip plot positions alternated across a given sample unit, so consumption could not be estimated at the plot level (i.e. consumption estimates were limited in resolution to the sample unit level). A sample unit consisted of a set of clip plots arranged systematically in one of three configurations: (1) surrounding a 40-m x 40-m (2011) or 20-m x 20-m (2012) highly instrumented plot (HIP) that was randomly located within a representative fuel condition inside a large burn block with two (2011) or three HIPs (2012) per large burn block; (2) surrounding a 200x200-m small burn block (S7, S8, and S9); or (3) along parallel transects from a random starting point within a large burn block (608A, L1G, L2G, and L2F). Further details on the fuel sampling protocols can be found in Ottmar et al. (2016).

Initial preprocessing of lidar data was performed by the vendor, Kucera International. Subsequent processing of lidar data necessary of the creation of this product is described in Hudak et al. (2015).

Ottmar, Roger D.; Restaino, Joseph C. 2014. RxCADRE 2008, 2011, and 2012: Ground fuel measurements from prescribed fires. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2014-0028

Hudak, Andrew T.; Bright, Benjamin, C.; Satterberg, Kevin L. 2015. RxCADRE 2008, 2011, and 2012: Lidar data and derived raster products. Fort Collins, CO: Forest Service Research Data Archive. Updated 08 September 2016. https://doi.org/10.2737/RDS-2015-0010

Hudak, Andrew T.; Dickinson, Matthew B.; Bright, Benjamin C.; Kremens, Robert L.; Loudermilk, E. Louise; O'Brien, Joseph J.; Hornsby, Benjamin S.; Ottmar, Roger D. 2016. Measurements relating fire radiative energy density and surface fuel consumption - RxCADRE 2011 and 2012. International Journal of Wildland Fire. 25: 25-37. https://doi.org/10.1071/wf14159

Ottmar, Roger D.; Hudak, Andrew T.; Prichard, Susan J.; Wright, Clinton S.; Restaino, Joseph C.; Kennedy, Maureen C.; Vihnanek, Robert E. 2016. Pre-fire and post-fire surface fuel and cover measurements collected in the southeastern United States for model evaluation and development - RxCADRE 2008, 2011 and 2012. International Journal of Wildland Fire. 25: 10-24. https://doi.org/10.1071/WF15092

Process_Date: 2016

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster

Raster_Object_Information:

Raster_Object_Type: Pixel

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: UTM Zone 16 Northern Hemisphere

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.9996

Longitude_of_Central_Meridian: -87.0

Latitude_of_Projection_Origin: 0.0

False_Easting: 500000.0

False_Northing: 0.0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.000000002220024164500956

Ordinate_Resolution: 0.000000002220024164500956

Planar_Distance_Units: meter

Geodetic_Model:

Horizontal_Datum_Name: D North American 1983

Ellipsoid_Name: GRS 1980

Semi-major_Axis: 6378137.0000

Denominator_of_Flattening_Ratio: 298.257222101

Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview:

This data package contains 3 GeoTiff files where each 25 square meter pixel represents surface fuel load in Megagrams per hectare. (Typical surface fuel load measurements for this area range from 1-10 Megagrams per hectare.)

\Data\703C_prefire_surface_fuel_load_proj_ccadj.tif: Surface fuels for block 703C

\Data\608A_prefire_surface_fuel_load_proj_ccadj.tif: Surface fuels for block 608A

\Data\2012_prefire_surface_fuel_load_proj_ccadj.tif: Surface fuels for L1G, L2G, and L2F.

Entity_and_Attribute_Detail_Citation:

Hudak, Andrew T.; Dickinson, Matthew B.; Bright, Benjamin C.; Kremens, Robert L.; Loudermilk, E. Louise; O'Brien, Joseph J.; Hornsby, Benjamin S.; Ottmar, Roger D. 2016. Measurements relating fire radiative energy density and surface fuel consumption - RxCADRE 2011 and 2012. International Journal of Wildland Fire. 25: 25-37. https://doi.org/10.1071/wf14159

Metadata_Reference_Information:

Metadata_Date: 20180611

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Andrew T. Hudak

Contact_Organization: USDA Forest Service, Rocky Mountain Research Station

Contact_Position: Research Forester

Contact_Address:

Address_Type: mailing and physical

Address: 1221 South Main St.

City: Moscow

State_or_Province: ID

Postal_Code: 83843

Country: USA

Contact_Voice_Telephone: 208-882-3557

Contact_Electronic_Mail_Address: ahudak@fs.fed.us

Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time