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Unusual ocean‐atmosphere conditions in the tropical Indian Ocean during 1994
Abstract
The southeastern tropical Indian Ocean (SETIO) was characterized by unusually cold sea surface temperature (SST) and strong northwestward alongshore surface winds during 1994. Using multi‐source data sets including ocean model simulation, two key processes are identified for the SETIO cooling. Entrainment cooling produced most of the negative SST anomaly near the coast whereas evaporative cooling dominated the process away from the coast. Convection was anomalously suppressed over SETIO and the divergence of moist air from the region helped the local evaporative process. This also led to anomalous moisture transports that explain the enhanced convection over the central equatorial Indian Ocean, India and East Asia. The positive feedback between the enhanced and suppressed convection regions in turn helped maintain the surface wind anomalies. These evidences clearly indicate the existence of an ocean‐atmosphere coupled phenomenon in the Indian Ocean during 1994.
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Citations
Cited by
Paramount impact of the Indian Ocean dipole on the East African short rains: A CGCM study
Behera, S. K., Luo, J.-J., Masson, S., Delecluse, P., Gualdi, S., Navarra, A., & Yamagata, T. (2005) · Journal of Climate · doi:10.1175/jcli3541.1 · Cited by 440
Self-citationA CGCM Study on the Interaction between IOD and ENSO
Behera, S. K., Luo, J. J., Masson, S., Rao, S. A., Sakuma, H., & Yamagata, T. (2006) · Journal of Climate · doi:10.1175/jcli3797.1 · Cited by 391
Self-citationA Look at the Relationship between the ENSO and the Indian Ocean Dipole.
ASHOK, K., GUAN, Z., & YAMAGATA, T. (2003) · Journal of the Meteorological Society of Japan. Ser. II · doi:10.2151/jmsj.81.41 · Cited by 316
Self-citationClimate fluctuations of tropical coupled systems: the role of ocean dynamics
Chang, P., Yamagata, T., Schopf, P., Behera, S. K., Carton, J., Kessler, W. S., Meyers, G., Qu, T., Schott, F., Shetye, S., et al. (2006) · Journal of Climate · doi:10.1175/jcli3903.1 · Cited by 244
Self-citationSouth Asian perspective on temperature and rainfall extremes: A review
Naveendrakumar, G., Vithanage, M., Kwon, H.-H., Chandrasekara, S. S. K., Iqbal, M. C. M., Pathmarajah, S., Fernando, W. C. D. K., & Obeysekera, J. (2019) · Atmospheric Research · doi:10.1016/j.atmosres.2019.03.021 · Cited by 108
Metadata
- Authors
- Behera, S. K., Krishnan, R., & Yamagata, T.
- Venue
- Geophysical Research Letters
- Publisher
- American Geophysical Union (AGU)
- Published
- 1999-10
- Volume
- 26
- Issue
- 19
- Pages
- 3001-3004
- ISSN
- 0094-8276 (ISSN-L)
- 1944-8007
- OpenAlex
- W2013805629
- Cited by
- 343
- References
- 0
- FWCI
- 6.85
- Type
- journal article
- Language
- en
- Open access
- closed
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- Behera, S. K., Krishnan, R., & Yamagata, T. (1999). Unusual ocean‐atmosphere conditions in the tropical Indian Ocean during 1994. Geophysical Research Letters. https://doi.org/10.1029/1999gl010434
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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