--------------------------------------------------------------------- Peatland Type at Fort McMurray East Site Alberta, Canada Data authors: Bourgeau-Chavez, L.L., S. Endres, E. Banda, R. Powell, M.R. Turetsky, B. Benscoter, and E.S Kasischke Funding from: North American Carbon Program Version: 2017-03-14 Prepared by: Alison Boyer, ORNL DAAC -------------------------------------------------------------------- CONTENTS 1. Data overview 2. Use of data 3. Temporal and spatial characteristics 4. File information 5. References -------------------------------------------------------------------- 1. DATA OVERVIEW The Peatland Type Maps (fen vs. bog including treed vs. open vs. shrubby) were based on multidate, multi-sensor fusion (Optical-IR, C-band and L-band SAR); the Burn Severity Maps (percent unburned moss, and a burn severity index (BSI)) were based on the ground consumption and Landsat pre- and post-burn imagery specific to peatlands. Over 350 field locations were sampled in in central Alberta to train and validate the peatland type maps. Data Uncertainty: Over 350 field locations were sampled at the five field sites in central Alberta to train and validate the peatland type maps shown below. Overall map accuracy was 97% using a Random Forests classifier. Random Forests is a machine learning algorithm that uses a series of decision trees to classify individual pixels The total accuracy for Utikuma was 96.0%, Kidney Lake was 92.5%, Wabasca was 88.5%, Fort McMurray East was 94.4%, and Fort McMurray West was 90.7%. -------------------------------------------------------------------- 2. USE OF DATA These data are made freely available to the public and the scientific community in the belief that their wide dissemination will lead to greater understanding and new scientific insights. Please include the following citation in any publication that uses this data: Bourgeau-Chavez, L.L., S. Endres, E. Banda, R. Powell, M.R. Turetsky, B. Benscoter, and E.S Kasischke. 2015. NACP Peatland Landcover Type and Wildfire Burn Severity Maps, Alberta, Canada. ORNL DAAC, Oak Ridge, Tennessee, USA. http://dx.doi.org/10.3334/ORNLDAAC/1283 -------------------------------------------------------------------- 3. TEMPORAL AND SPATIAL CHARACTERISTICS Temporal range: 2010-06-17 to 2013-07-22 Temporal resolution / sampling frequency: one time Spatial Data Properties: Number Columns: 6896 Column Resolution: 12.5 meter Number Rows: 9727 Row Resolution: 12.5 meter Extent in the item's coordinate system North: 6278803.284 South: 6157215.784 West: 437201.645 East: 523401.645 Spatial Reference Properties Type: Projected Geographic Coordinate Reference: WGS 1984 Projection: UTM_Zone_12_Northern_Hemisphere Open Geospatial Consortium (OGC) Well Known Text (WKT) PROJCS["UTM_Zone_12N", GEOGCS["WGS 84", DATUM["WGS_1984", SPHEROID["WGS 84",6378137,298.257223563, AUTHORITY["EPSG","7030"]], AUTHORITY["EPSG","6326"]], PRIMEM["Greenwich",0], UNIT["degree",0.0174532925 AUTHORITY["EPSG","4326"]], PROJECTION["Transverse_Mercator"], PARAMETER["latitude_of_origin",0], PARAMETER["central_meridian",-111], PARAMETER["scale_factor",0.9996], PARAMETER["false_easting",500000], PARAMETER["false_northing",0], UNIT["metre",1, AUTHORITY["EPSG","9001"]], AUTHORITY["EPSG","32612"]] Site description: This data set provides landcover maps of (1) peatland type (bog, fen, marsh, swamp) with levels of biomass (open, forested) and (2) Burn Severity Index (BSI) (Dyrness and Norum, 1983) for four wildfire areas in northern Alberta, Canada. The four wildfire sites include the Utikuma fire site of 2011, Kidney Lake fire site of 2011, Fort McMurray west fire site of 2009, and Fort McMurray east fire site of 2009. The peatland classification at 12.5-m resolution (fen vs. bog including treed vs. open vs. shrubby) at each wildfire site was based on a pre-burn 2007 multi-date, multi-sensor fusion (Optical-IR, C-band and L-band SAR) approach. Over 350 field locations were sampled in central Alberta to train and validate the peatland type maps. -------------------------------------------------------------------- 4. FILE INFORMATION File format: GeoTiff (.tif) Spatial Representation Type: Raster Pixel Depth: 4 bit Pixel Type: byte Compression Type: LZW Number of Bands: 1 Raster Format: TIFF Source Type: discrete No Data Value: 15 Scale Factor: 0.9996 Raster values range from 0 - 14. # what is the legend for each class ?? -------------------------------------------------------------------- 5. REFERENCES This data supports the following publication: