| Issue |
BIO Web Conf.
Volume 106, 2024
The 5th International Conference on Marine Science (ICMS 2023)
|
|
|---|---|---|
| Article Number | 03002 | |
| Number of page(s) | 10 | |
| Section | Climate Change & Oceanography | |
| DOI | https://doi.org/10.1051/bioconf/202410603002 | |
| Published online | 03 May 2024 | |
A strange negative Indian Ocean Dipole (IOD) in 2022
1 Research Center for Climate and Atmosphere, National Research and Innovation Agency, Indonesia, 40135
2 Marine Research Center, Ministry of Marine Affairs and Fisheries, Indonesia
3 School of Atmospheric Sciences, Sun Yat-Sen University, China, 519082
* Corresponding author: vientykarim@gmail.com
The Indian Ocean Dipole (IOD) is a prominent pattern of climatic mode in the Indian Ocean that contributes to the changes in Rainfall pattern, Sea Surface Temperature (SST), and Surface Salinity (SSS) in the Indian Ocean. Recently in the scenario of Climate Change, this IOD may experience shifting in the phases development that link to the Indo-Pacific teleconnection. Here, we analyse the changes of negative IOD patterns in 2022 through the SST, SSS, rainfall pattern, and surface current system. This study showed the negative IOD was initiated earlier and coincided with the Asian monsoon during May 2022. The IOD is faster ended in October 2022 when the Australian Monsoon was generated. The Rainfall pattern at the Eastern Indian Ocean (EIO) and the Indonesian Archipelago experienced an intensive pattern from May up to December 2022. During the negative IOD phases, the precipitation at the EIO is more concentrated in Java and less precipitation in Sumatra. The warmer SST and fresh surface salinity in the Indonesian Archipelago are wider following the Pacific SST. This reveals the Indo-Pacific teleconnection is stronger during 2022 via the surface ocean patterns and the coincidence of stronger westerly wind and easterly wind in the maritime continent.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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