Comparison of TRMM estimated rainfall with ground truth over Calcutta

Author

Maitra, Animesh ; Jaiswal, Rajasri Sen ; Fredrick, Sonia R. ; Neela, V.S. ; Chakraborty, Kaustav ; Adhikari, Arpita ; Bhattacharya, Aniruddha ; Rasheed, M. ; Zaveri, Leena

Author_Institution

S.K. Mitra Centre for Res. in Space Environ., Calcutta Univ., Kolkata, India

fYear

2009

fDate

14-16 Dec. 2009

Firstpage

1

Lastpage

4

Abstract

The precipitation radar (PR) onboard Tropical Rain Monitoring Mission (TRMM) estimates rainfall from space covering a vast geographical area. It is necessary to compare such estimates with ground truth. In this paper PR estimated rain has been compared with that obtained from India Meteorological Department (IMD) and also a disdrometer over Calcutta. PR estimated rainfall statistics have been presented along with IMD derived rainfall statistics. Regression relationships of rainfall have been derived as a function of surface temperature (DBT) and surface dew point temperature (DPT). Also rainfall phenomena have been studied as a signature of El NiÃ±o and La NiÃ±a occurrence.

Keywords

atmospheric temperature; rain; Calcutta; El Nino; IMD rainfall statistics; India; India Meteorological Department; La Nina; PR estimated rainfall statistics; TRMM estimated rainfall; Tropical Rain Monitoring Mission rainfall estimation; disdrometer; precipitation radar; surface dew point temperature; surface temperature; Clouds; Computerized monitoring; Ice; Ocean temperature; Radar; Rain; Sea measurements; Sea surface; Space technology; Statistics; EL-NINO; LA-NINA; Rainfall; TRMM;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers and Devices for Communication, 2009. CODEC 2009. 4th International Conference on

Conference_Location

Kolkata

Print_ISBN

978-1-4244-5073-2

Type

conf

Filename

5407104