NDLI: Reduction of discontinuity due to the orbit boost in TRMM Precipitation Radar product for climate studies

Content Provider	IEEE Xplore Digital Library
Author	Kida, S. Kubota, T. Kachi, M. Oki, R. Iguchi, T. Takayabu, Y.N.
Copyright Year	2013
Description	Author affiliation: Nat. Inst. of Inf. & Commun. Technol., Koganei, Japan (Iguchi, T.) \|\| AORI, Univ. of Tokyo, Chiba, Japan (Takayabu, Y.N.) \|\| Earth Obs. Res. Center, Japan Aerosp. Exploration Agency, Tsukuba, Japan (Kida, S.; Kubota, T.; Kachi, M.; Oki, R.)
Abstract	The Precipitation Radar (PR) on the TRMM satellite has observed tropical rainfall for more than 15 years. The long-term rainfall data from TRMM PR have been very useful for scientific studies. However, several studies have shown that the amount of weak convective rainfall decreased in the PR product due to the TRMM orbit boost from 350 km to 402.5 km in August 2001. In this study, the impact of the sensitivity degradation on the rainfall amounts is estimated by adjusting the pre-boost data with a simulation of reduced sensitivity by the orbit boost. A PR precipitation product with reduced artificial discontinuity at the timing of the orbit boost is produced for climate studies. The result shows that the decrease of the global rainfall amount due to the sensitivity is about 2.1% on average. However, the decreases of rainfall amount due to the sensitivity degradation vary spatially and they are larger, in particular, in subtropical ocean.
Sponsorship	IEEE Geosci. Remote Sens. Soc.
Starting Page	644
Ending Page	647
File Size	3631929
Page Count	4
File Format	PDF
ISBN	9781479911141
ISSN	21536996
DOI	10.1109/IGARSS.2013.6721239
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-07-21
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Sensitivity Rain Degradation Orbits Oceans Spaceborne radar sensitivity TRMM PR orbit boost precipitation
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
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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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