Sounder SIPS: JPSS-1 ATMS Level 1 Daily Polygon Granule Map at GES DISC

Description

The Advanced Technology Microwave Sounder (ATMS) Level 1B data files contain brightness temperature measurements along with ancillary spacecraft, instrument, and geolocation data of the ATMS instrument on the Joint Polar Satellite System-1 (JPSS-1) platform. This platform is also known as NOAA-20 (National Oceanic and Atmospheric Administration). The ATMS is a 22-channel mm-wave radiometer. The ATMS will measure upwelling radiances in six frequency bands centered at 23 GHz, 31 GHz, 50-58 GHz, 89 GHz, 66 GHz, and 183 GHz. The ATMS is a total power radiometer, with "through-the-antenna" radiometric calibration. Radiometric data is collected by a pair of antenna apertures, scanned by rotating flat plate reflectors. Scanning is performed cross-track to the satellite motion from sun to anti-sun, using the "integrate-while-scan" type data collection. The scan period is 8/3 second, synchronized to the Cross-track Infrared Sounder (CrIS) using a spacecraft provided scan synchronization pulse. Since the JPSS-1 satellite is orbiting at an altitude of about 830 km, the instantaneous spatial resolution on the ground at nadir is about 16 km, 32 km, or 75 km depending upon the channel. The brightness temperature data are contained in an array with 135 rows in the along-track direction, 96 columns in the cross-track direction, and a 3rd dimension for each of the 22 channels. The ATMS cross-track scan interval is 0.018 seconds and the along-track scan period is 8/3 seconds.. Data products are constructed on six minute boundaries. The Granule Map Product consists of daily images of granule coverage in PDF format.

Resources

Name Format Description Link
5 https://airs.jpl.nasa.gov%2Findex.html
5 https://disc.gsfc.nasa.gov%2Finformation%2Fdocuments%3Ftitle%3DAIRS%2520Documentation
5 https://docserver.gesdisc.eosdis.nasa.gov%2Fpublic%2Fproject%2FImages%2FATMS.map.png
5 https://disc.gsfc.nasa.gov%2Fdatacollection%2FSNDRJ1ATMSMAP_1.html
5 https://sounder.gesdisc.eosdis.nasa.gov%2Fdata%2FGranule_Maps%2FSNDRJ1ATMSMAP.1%2F
5 https://search.earthdata.nasa.gov%2Fsearch%3Fq%3DSNDRJ1ATMSMAP%2B1
5 https://docserver.gesdisc.eosdis.nasa.gov%2Fpublic%2Fproject%2FSounder%2FReadme.ATMS.GranuleMap.pdf
34 ATMS.map.png https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/ATMS.map.png
21 SNDRJ1ATMSMAP_1.html https://disc.gsfc.nasa.gov/datacollection/SNDRJ1ATMSMAP_1.html
5 https://sounder.gesdisc.eosdis.nasa.gov/data/Granule_Maps/SNDRJ1ATMSMAP.1/
5 https://search.earthdata.nasa.gov/search?q=SNDRJ1ATMSMAP%2B1
21 index.html https://airs.jpl.nasa.gov/index.html
5 https://disc.gsfc.nasa.gov/information/documents?title=AIRS%2520Documentation
33 Readme.ATMS.GranuleMap.pdf https://docserver.gesdisc.eosdis.nasa.gov/public/project/Sounder/Readme.ATMS.GranuleMap.pdf
0 The metadata's original source. https://cmr.earthdata.nasa.gov/search/concepts/C2373816920-GES_DISC.iso19115

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  • earth-science-microwave-spectral-engineering-microwave-radiance-granule-coverage

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