NDLI: Ground-based retrieval of very low to high columnar integrated water vapor using combined millimeter-wave and microwave observations

Content Provider	IEEE Xplore Digital Library
Author	Jones, D.C. Racette, P.E.
Copyright Year	1998
Description	Author affiliation: Numerical Weather Prediction Div., Meteorol. Office, Bracknell, UK (Jones, D.C.)
Abstract	Precipitable water vapor (PWV) and liquid water path (LWP) retrievals using zenith view passive microwave observations near the 22.235 GHz water vapor line are known to be of high accuracy for most mid-latitude profiles. However in very dry atmospheres (PWV<10 mm), such as those experienced in the Arctic winter, the percentage accuracy of these retrievals becomes poor due to the weakness of the 22 GHz feature. The authors describe an adaptable physical retrieval algorithm which uses any number of channels in the range 10-300 GHz to retrieve PWV and LWP. Using a database of model high latitude profiles, the authors investigate the performance of various channel combinations in the range 23 to 183 GHz for retrieving PWV and LWP. The authors demonstrate that the best retrieval performance over the expected range of PWV and LWP in high-latitude climates is made with combinations that include channels near the 22 GHz absorption line and the much stronger 183.31 GHz line. This analysis is applicable to optimizing the measurement strategy for studying the influence of water vapor on the Earth's radiation budget in Arctic areas.
Starting Page	2166
Ending Page	2168
File Size	317919
Page Count	3
File Format	PDF
ISBN	0780344030
DOI	10.1109/IGARSS.1998.703774
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-07-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Atmospheric modeling Information retrieval Frequency measurement Microwave measurements Millimeter wave measurements Temperature measurement Weather forecasting Meteorology Microwave sensors NASA
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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