Polar2grid and AOD and NDVI
The Community Satellite Processing Package (CSPP) Polar2grid package is being updated and amended. Polar2grid version 3.1 (coming soon to a computer near your desk!) will include the ability to create reprojected images of Aerosol Optical Depth (AOD) and Normalized Difference Vegetation Index (NDVI). The imagery above from AWIPS shows the NOAA-20 AOD near the Lone Rock fire in north-central Oregon. The large values of AOD within the smoke plume are obvious. AOD display values are capped at 1.
Normalized Difference Vegetation Index, shown below in a toggle outlines the region where the fire has been, as an orange region surrounded by yellow to the north and green to the south, with the fire burning to the southeast of the burnscar.
A zoomed-out toggle of True Color and AOD, below, shows a much large smoke plume (characterized by very large AOD values) over much of Idaho in addition to the smoke plumes from individual fires in the Pacific Northwest.
