Modulation of Sri Lankan Maha rainfall by the Indian Ocean Dipole
- 24 January 2003
- journal article
- Published by American Geophysical Union (AGU) in Geophysical Research Letters
- Vol. 30 (2)
- https://doi.org/10.1029/2002gl015639
Abstract
Investigating the September to December rainy season in Sri Lanka associated with the Maha rice growing season provides insights into the Asian monsoon during the boreal fall. Here, the modulation of the Maha rainfall by the tropical air_sea coupled phenomenon referred to as the Indian Ocean Dipole (IOD) is documented. The Maha rainfall has a strong and robust association with the IOD from 1869 to 2000. The anomalously warm sea surface in the western Indian Ocean associated with the positive IOD phase induces large scale convergence in the lower troposphere extending to Sri Lanka leading to the preponderant enhancement of Maha rainfall.This publication has 18 references indexed in Scilit:
- Why were cool SST anomalies absent in the Bay of Bengal during the 1997 Indian Ocean Dipole Event?Geophysical Research Letters, 2002
- Interannual subsurface variability in the tropical Indian Ocean with a special emphasis on the Indian Ocean DipoleDeep Sea Research Part II: Topical Studies in Oceanography, 2002
- Impact of the Indian Ocean dipole on the relationship between the Indian monsoon rainfall and ENSOGeophysical Research Letters, 2001
- The Indian Ocean SST dipole simulated in a coupled general circulation modelGeophysical Research Letters, 2000
- A Simple Ocean Data Assimilation Analysis of the Global Upper Ocean 1950–95. Part I: MethodologyJournal of Physical Oceanography, 2000
- Unusual ocean‐atmosphere conditions in the tropical Indian Ocean during 1994Geophysical Research Letters, 1999
- A dipole mode in the tropical Indian OceanNature, 1999
- Analyses of global sea surface temperature 1856–1991Journal of Geophysical Research: Oceans, 1998
- The NCEP/NCAR 40-Year Reanalysis ProjectBulletin of the American Meteorological Society, 1996
- Global and Regional Scale Precipitation Patterns Associated with the El Niño/Southern OscillationMonthly Weather Review, 1987