Validation of the New Algorithm for Rain Rate Retrieval from AMSR2 Data Using TMI Rain Rate Product
Joint Authors
Zabolotskikh, Elizaveta
Chapron, Bertrand
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-04-21
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
A new algorithm is derived for rain rate (RR) estimation from Advanced Microwave Sounding Radiometer 2 (AMSR2) measurements taken at 6.9, 7.3, and 10.65 GHz.
The algorithm is based on the numerical simulation of brightness temperatures (TB) for AMSR2 lower frequency channels, using a simplified radiation transfer model.
Simultaneous meteorological and hydrological observations, supplemented with modeled values of cloud liquid water content and rain rate values, are used for the calculation of an ensemble of AMSR2 TBs and RRs.
Ice clouds are not taken into account.
AMSR2 brightness temperature differences at C- and X-band channels are then used as inputs to train a neural network (NN) function for RR retrieval.
Validation is performed against Tropical Rain Measurement Mission (TRMM) Microwave Instrument (TMI) RR products.
For colocated AMSR2-TMI measurements, obtained within 10 min intervals, errors are about 1 mm/h.
The new algorithm is applicable for RR estimation up to 20 mm/h.
For RR<2 mm/h the retrieval error is 0.3 mm/h.
For RR>10 mm/h the algorithm significantly underestimates TMI RR.
American Psychological Association (APA)
Zabolotskikh, Elizaveta& Chapron, Bertrand. 2015. Validation of the New Algorithm for Rain Rate Retrieval from AMSR2 Data Using TMI Rain Rate Product. Advances in Meteorology،Vol. 2015, no. 2015, pp.1-12.
https://search.emarefa.net/detail/BIM-1052750
Modern Language Association (MLA)
Zabolotskikh, Elizaveta& Chapron, Bertrand. Validation of the New Algorithm for Rain Rate Retrieval from AMSR2 Data Using TMI Rain Rate Product. Advances in Meteorology No. 2015 (2015), pp.1-12.
https://search.emarefa.net/detail/BIM-1052750
American Medical Association (AMA)
Zabolotskikh, Elizaveta& Chapron, Bertrand. Validation of the New Algorithm for Rain Rate Retrieval from AMSR2 Data Using TMI Rain Rate Product. Advances in Meteorology. 2015. Vol. 2015, no. 2015, pp.1-12.
https://search.emarefa.net/detail/BIM-1052750
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1052750