Paper Info
Title
Reduction of discontinuity due to the orbit boost in TRMM Precipitation Radar product for climate studies
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.
Year
DOI
Venue
2013
10.1109/IGARSS.2013.6721239
Geoscience and Remote Sensing Symposium
Keywords
Field
DocType
convection,meteorological radar,rain,remote sensing by radar,spaceborne radar,AD 2001 08,PR precipitation product,TRMM PR long term rainfall data,TRMM Precipitation Radar product,TRMM satellite,altitude 350 km,altitude 402.5 km,artificial discontinuity,climate studies,discontinuity reduction,orbit boost,preboost data,rainfall amount,sensitivity degradation,tropical rainfall observations,weak convective rainfall,PR,TRMM,orbit boost,precipitation,sensitivity
Spaceborne radar,Meteorology,Radar,Orbit,Convection,Satellite,Computer science,Remote sensing,Discontinuity (linguistics),Subtropics,Precipitation
Conference
ISSN
ISBN
Citations 
2153-6996
978-1-4799-1114-1
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Satoshi Kida1112.64
Kubota, T.200.68
Kachi, M.310.75
Riko Oki4128.21