- Dona Paula, Goa, India.
- +91-0832- 2450327
- iiosc2020[at]nio[dot]org
| Abstract Submission No. | ABS-2022-11-0339 |
| Title of Abstract | MJO winds driven intraseasonal see-saw of ocean mass in the Indo-Pacific basin |
| Authors | Arya Paul* |
| Organisation | INCOIS |
| Address | Indian National Centre for Ocean Information Services Hyderabad, Telangana, India Pincode: 500090 Mobile: 7382701821 E-mail: aryapaul@incois.gov.in |
| Country | India |
| Presentation | Oral |
| Abstract | The Maritime Continent, which lies over the tropical interface of the Indian and the Pacific Ocean, is home to intense Madden-Julian Oscillations during boreal winters. Here we show that the strong Madden-Julian Oscillation winds over this continent drives a barotropic dynamics that adjusts the Indo-Pacific basin in a few days, and induces a barotropic circulation about the Australian continent which reverses its direction every 30-80 days. This novel ocean dynamics generates a seesaw of oceanic mass in the Indo-Pacific basin. The large-scale ocean mass redistribution in the Indo-Pacific basin, accompanied by strong concurrent meridional transports in the Indian and Pacific basin, elicits a variability of 50 milliarcseconds in the polar motion of the Earth relative to its crust. |