GOES Product Improvement and Development (Hillger, Campbell, Combs)
A channel 4 minus 5 longwave difference product is being generated from
both GOES-8 and 9 and is displayed on RAMSDIS at CIRA. The resulting
differences are displayed as a loop of 8 frames, along with a loop of GOES
channel 5 images. The difference is the largest for thin cirrus clouds
streaming downwind from larger anvil tops. Eventually this difference
product will be combined with the GOES channel 4 image to generate a surface
skin temperature image.
Work continued this quarter on the visible enhancement program under Day
2 Product Development. This program enhances visible data according
to two ranges of 10.7 micrometer infrared brightness temperature.
That is, cold and warm clouds will be enhanced separately.