- Dona Paula, Goa, India.
- +91-0832- 2450327
- iiosc2020[at]nio[dot]org
| Abstract Submission No. | ABS-2022-04-0294 |
| Title of Abstract | Regional impacts of the IOD on barrier layer thickness in the Indian Ocean |
| Authors | Marufa Ishaque*, Sophie Clayton |
| Organisation | Old Dominion University |
| Address | Old Dominion University Norfolk, Virginia, United States Pincode: 23507 Mobile: 7573626363 E-mail: misha001@odu.edu |
| Country | United States |
| Presentation | Poster |
| Abstract | When salinity dominates upper ocean stratification, mixed layer depth (MLD) can be shallower than isothermal layer depth (ILD), creating a barrier layer (BLT). Large freshwater fluxes are instrumental in driving the formation of barrier layer. Indian Ocean Dipole (IOD) reflects differences in SST across the IO and is known to impact BLT. In this study, we explore regional differences in the IOD impact on BLT by using quality-controlled Argo profiles spanning the years 2000 to 2020. The relationship between the BLT and IOD shows that positive IOD events result in thinner BLTs and negative IOD events result in thicker BLTs. The coupling between the IOD and BLT is most pronounced in the BoB and EEIO. We examine the variability of this relationship and the forcing mechanisms behind this coupling. |