4.10. VIIRS EDR Active Fires Reader¶
The VIIRS EDR Active Fires reader operates on CSPP NetCDF I-Band (AFIMG) Resolution or M-Band Resolution (AFMOD) Environmental Data Record files.
Files supported usually have the following naming schemes:
AFIMG_j01_d20221006_t2101052_e2102297_b25304_c20221006214545032016_cspp_dev.nc and/or, AFMOD_npp_d20221006_t2017005_e2018247_b56701_c20221006205259096916_cspp_dev.nc
For more information about the this CSPP product, please visit the CSPP LEO website: https://cimss.ssec.wisc.edu/cspp/.
This reader’s default resampling algorithm --method is
nearest for Nearest Neighbor resampling. The frontend can
be specified with the polar2grid.sh command using the
viirs_edr_active_fires frontend name. The VIIRS Active Fire
frontend provides the following products:
Product Name |
Description |
|---|---|
confidence_cat |
Fire Confidence Category (AFIMG Resolution Only) |
T4 |
I-Band 4 Temperature (AFIMG Resolution Only) |
power |
Fire Radiative Power |
confidence_pct |
Fire Confidence Percentage (AFMOD Resolution Only) |
T13 |
M-Band 13 Temperature (AFMOD Resolution Only) |
4.10.1. Command Line Arguments¶
usage: polar2grid.sh -r viirs_edr_active_fires -w <writer> [-h]
Some output GeoTIFF fire products are color enhanced:
AFIMG
confidence_cat - Low (Yellow), Nominal (Orange), High (Red)
power - 1 - 250 and above (MW) Yellow->Red
AFMOD
confidence_pct - 1-100% Yellow->Red
power - 1 - 250 and above (MW) Yellow->Red
Examples:
$POLAR2GRID_HOME/bin/polar2grid.sh -r viirs_edr_active_fires -w geotiff -h
polar2grid.sh -r viirs_edr_active_fires -w geotiff --list-products -f ../active_fire_edr/AFIMG*.nc
polar2grid.sh -r viirs_edr_active_fires -w geotiff --list-products -f ../active_fire_edr/AFMOD*.nc
polar2grid.sh -r viirs_edr_active_fires -w geotiff -p confidence_cat T4 img_edr/AFIMG*.nc
polar2grid.sh -r viirs_edr_active_fires -w geotiff -g lcc_aus -p confidence_pct T13 -f AFMOD_j01_d20191120_t1513353_e1514581_b10389_c20191121192444396115_cspp_dev.nc
NOTE: The active fire images can be overlaid onto another GeoTIFF. See Overlay GeoTIFF Images for instructions.
