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Retrieval of Upper Tropospheric Water Retrieval of Upper Tropospheric Water Retrieval of Upper Tropospheric Water : Volume 5, Issue 2 (15/03/2005)

By Houshangpour, A.

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Book Id: WPLBN0003987717
Format Type: PDF Article :
File Size: Pages 34
Reproduction Date: 2015

Title: Retrieval of Upper Tropospheric Water Retrieval of Upper Tropospheric Water Retrieval of Upper Tropospheric Water : Volume 5, Issue 2 (15/03/2005)  
Author: Houshangpour, A.
Volume: Vol. 5, Issue 2
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2005
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Buehler, S. A., Houshangpour, A., & John, V. O. (2005). Retrieval of Upper Tropospheric Water Retrieval of Upper Tropospheric Water Retrieval of Upper Tropospheric Water : Volume 5, Issue 2 (15/03/2005). Retrieved from http://www.ebooklibrary.org/


Description
Description: Institute of Environmental Physics, University of Bremen, Bremen, Germany. A regression method was developed to retrieve upper tropospheric water vapor (UTWV in kg/m2) and upper tropospheric humidity (UTH in %RH) from radiances measured by the Advanced Microwave Sounding Unit (AMSU). In contrast to other UTH retrieval methods, UTH is defined as the average relative humidity between 500 and 200 hPa, not as a Jacobian weighted average, which has the advantage that the UTH altitude does not depend on the atmospheric conditions. The method uses AMSU channels 6–10, 18, and 19, and should achieve an accuracy of 0.48 kg/m2 for UTWV and 6.3%RH for UTH, according to a test against an independent synthetic data set. This performance was confirmed for northern mid-latitudes by a comparison against radiosonde data from station Lindenberg in Germany, which yielded errors of 0.23 kg/m2 for UTWV and 6.1%RH for UTH.

Summary
Retrieval of upper tropospheric water Retrieval of upper tropospheric water Retrieval of upper tropospheric water

 

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