Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
All 1C products have a common L1C data structure, simple and generic. Each L1C swath includes scan time, latitude and longitude, scan status, quality, incidence angle, Sun glint angle, and the intercalibrated brightness temperature (Tc). One or more swaths are included in a product. The radiometer data are recalibrated to a common basis so that precipitation products derived from them are consistent. 1CMHS contains common calibrated brightness temperature from the MHS passive microwave instrument flown on the NOAA and METOPS satellites. Swath S1 is the only swath and has 5 channels (89.0GHzV, 157.0GHzV, 183.3GHz+/-250MHzH, 183.3GHz+/- 500MHzH, and 190.3 GHzV). MHS is very similar to AMSU-B. The scan period is 2.667s.The purpose of Level 1C algorithms is to provide common intercalibrated microwave brightness temperature (Tc) products for GPM core and constellation satellites using the GPM Microwave Imager (GMI) as the reference standard to ensure the consistency among global precipitation retrieval and climate studies. Current available L1C products are listed in the following table found in the document Introduction To Data Products ("http://pps.gsfc.nasa.gov/Documents/IntroductionToDataProducts.pdf")