Extended Abstract (168K)P3.38
Is the resolution of GOES sounder data sufficient to support single field of view retrievals and derived products?
Gail M. Bayler, CIMSS/Univ. of Wisconsin, Madison, WI; and S. Wetzel-Seemann, J. Li, and T. J. Schmit
Operational GOES Sounder retrievals are calculated using a field of regard (FOR) of 5x5 fields of view (FOV). Each FOV is approximately 10 square km so temperature and moisture retrievals (at 40 pressure levels) have a spatial resolution of approximately 50 km. At the Cooperative Institute for Meteorological Satellite Studies (CIMSS), retrievals are produced with a 3x3 FOR. The improved spatial resolution of 50 to 30 km allows more precise depiction of cloud/no cloud regions, profiles of temperature and dew point temperature, and derived product images (precipitable water, lifted index and skin temperature). The question then arises if single FOV (1x1) retrievals continue the trend of improved products. That is, does the single FOV depict a true meteorological signal or does the instrument noise overcome the signal. MODIS (MODerate resolution Imaging Spectroradiometer) data will be used as a source of validation. Cases will be presented to answer these questions.
Supplementary URL: http://cimss.ssec.wisc.edu/goes/pdf/satconf01_sfov_rets_P3.38.pdf
Poster Session 3, Operational Applications (Continued)
Tuesday, 16 October 2001, 2:15 PM-4:00 PM
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