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Thermodynamic and cloud parameter retrieval using infrared spectral dataHigh-resolution infrared radiance spectra obtained from near nadir observations provide atmospheric, surface, and cloud property information. A fast radiative transfer model, including cloud effects, is used for atmospheric profile and cloud parameter retrieval. The retrieval algorithm is presented along with its application to recent field experiment data from the NPOESS Airborne Sounding Testbed - Interferometer (NAST-I). The retrieval accuracy dependence on cloud properties is discussed. It is shown that relatively accurate temperature and moisture retrievals can be achieved below optically thin clouds. For optically thick clouds, accurate temperature and moisture profiles down to cloud top level are obtained. For both optically thin and thick cloud situations, the cloud top height can be retrieved with an accuracy of approximately 1.0 km. Preliminary NAST-I retrieval results from the recent Atlantic-THORPEX Regional Campaign (ATReC) are presented and compared with coincident observations obtained from dropsondes and the nadir-pointing Cloud Physics Lidar (CPL).
Document ID
20050180367
Acquisition Source
Goddard Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
Zhou, Daniel K. (NASA Langley Research Center Hampton, VA, United States)
Smith, William L., Sr. (Hampton Univ. VA, United States)
Liu, Xu (Wisconsin Univ. Madison, WI, United States)
Larar, Allen M. (NASA Langley Research Center Hampton, VA, United States)
Huang, Hung-Lung A. (Wisconsin Univ. Madison, WI, United States)
Li, Jun (Wisconsin Univ. Madison, WI, United States)
McGill, Matthew J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Mango, Stephen A. (NPOESS Integrated Program Office Silver Spring, MD, United States)
Date Acquired
September 7, 2013
Publication Date
January 1, 2005
Subject Category
Meteorology And Climatology
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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