MODIS Composite Fire Product Suite
(Updated July 9, 2010)

NGDC's Earth Observation Group (EOG) has generated global composites of MODIS M[OY]D14 fire products.  These initial composite products are created from one year of MODIS data, but they can be created from any specified time period.

Basic Processing Steps:
  A) Acquire MODIS Level 2 Fire Products  (M[OY]D14 files)
  B) Acquire MODIS Level 1b Geolocation Products (M[OY]D03 files)
  C) Reproject firemask and fire radiative power (FRP) data from M[OY]D14 files into 30 arc second grids.  To reproject, the EOG group used a modified version of the swath2grid routine, which is part of the MRTSwath package.
  D) The firemask and FRP data were run through a compositing routine to produce the suite of output files with the following extensions:
    1) cvg - the number of available coverages, or observations.  The MODIS Level 2 fire products only consider fires on land, so water is masked and not considered a valid "observation" in this product.
    2) cf_cvg - the number of available cloud-free coverages, or observations
    3) n_frp - the number of observations tagged as fire
    4) pct_frp - the percent frequency of observations tagged as fire (pct_frp=n_frp/cf_cvg)
    5) sum_frp - the sum of the FRP values tagged as fire (units=MW)
    6) sum_frpkm2 - the sum of the normalized FRP values tagged as fire (units=MW/km^2)
    7) avg_frp - the average of the FRP values tagged as fire (units=MW, avg_frp= sum_frp/n_frp)
    8) avg_frpkm2 - the average of the normalized FRP values tagged as fire (units=MW/km^2, avg_frpkm2 = sum_frpkm2/n_frp)
    9) max_frp - the max of the FRP values tagged as fire (units=MW)
    10) max_frpkm2 - the max of the normalized FRP values tagged as fire (units=MW/km^2)
    11) min_frp - the min of the FRP values tagged as fire (units=MW)
    12) min_frpkm2 - the min of the normalized FRP values tagged as fire (units=MW/km^2)

Example filenames for satellite Aqua, year 2009 (satellite Terra files will start with a T):
  A_20090101_20091231.v0.avg_frpkm2.tif
  A_20090101_20091231.v0.avg_frp.tif
  A_20090101_20091231.v0.cf_cvg.tif
  A_20090101_20091231.v0.cvg.tif
  A_20090101_20091231.v0.max_frpkm2.tif
  A_20090101_20091231.v0.max_frp.tif
  A_20090101_20091231.v0.min_frpkm2.tif
  A_20090101_20091231.v0.min_frp.tif
  A_20090101_20091231.v0.n_frp.tif
  A_20090101_20091231.v0.pct_frp.tif
  A_20090101_20091231.v0.sum_frpkm2.tif
  A_20090101_20091231.v0.sum_frp.tif

Contacts:
  Chris Elvidge
  NOAA/NGDC
    325 Broadway E/GC2
    Boulder, CO 80305
  Chris.Elvidge@noaa.gov
  303-497-6121

  Kimberly Baugh
  CIRES
  NOAA/NGDC
    325 Broadway E/GC2
    Boulder, CO 80305
  Kim.Baugh@noaa.gov
  303-497-4452

  Daniel Ziskin
  CIRES
  NOAA/NGDC
    325 Broadway E/GC2
    Boulder, CO 80305
  Daniel.Ziskin@noaa.gov
  303-497-6469