PL23B:
New Insights into the Dynamics of the Western Tropical Indian Ocean I


Session ID#: 36765

Session Description:
The circulation in the western tropical Indian Ocean is driven by monsoonal forcing leading to seasonally reversing currents as well as vigorous coastal upwelling and (sub)mesoscale activity, particularly in the Arabian Sea. Regional water masses are created and modified through a combination of extreme air-sea interactions and upper-ocean mixing processes, which may feed back on the Indian monsoon itself. This session will highlight new insights into the physical and biogeochemical interactions of all major western tropical Indian Ocean areas including the Arabian Sea, the Red Sea, the Mozambique Channel, and the Seychelles-Chagos thermocline ridge. Abstracts are also solicited on the connectivity of the western tropical Indian Ocean to adjacent seas such as the Bay of Bengal and the Agulhas region. In particular, we seek contributions that emphasize the use of combined components of the global ocean observing system (including in situ and autonomous measurements as well as remote sensing), innovative standalone observations, or model studies of varied complexity to elucidate the dynamics of the circulation in the western tropical Indian Ocean, the coupled ocean-atmosphere interactions, and the connection to the Indian monsoon variability.
Primary Chair:  Verena Hormann, Scripps Institution of Oceanography, La Jolla, CA, United States
Co-chairs:  Janet Sprintall, University of California San Diego, La Jolla, CA, United States, Andrey Shcherbina, Applied Physics Laboratory University of Washington, Seattle, WA, United States and Hyodae Seo, Woods Hole Oceanographic Institution, Physical Oceanography, Woods Hole, MA, United States
Moderators:  Janet Sprintall, University of California San Diego, La Jolla, CA, United States, Verena Hormann, Scripps Institution of Oceanography, La Jolla, CA, United States, Hyodae Seo, WHOI, Woods Hole, MA, United States and Andrey Shcherbina, Applied Physics Laboratory University of Washington, Seattle, WA, United States
Student Paper Review Liaisons:  Janet Sprintall, University of California San Diego, La Jolla, CA, United States and Verena Hormann, Scripps Institution of Oceanography, La Jolla, CA, United States
Index Terms:

4504 Air/sea interactions [OCEANOGRAPHY: PHYSICAL]
4532 General circulation [OCEANOGRAPHY: PHYSICAL]
4572 Upper ocean and mixed layer processes [OCEANOGRAPHY: PHYSICAL]
9340 Indian Ocean [GEOGRAPHIC LOCATION]
Cross-Topics:
  • AI - Air-Sea Interactions
  • OM - Ocean Modeling
  • PS - Physical Oceanography: Mesoscale and Smaller

Abstracts Submitted to this Session:

Asymmetric relations among wind, SST and the thermocline depth in the SW Indian Ocean during IOD events (310936)
Ebenezer S Nyadjro, University of New Orleans, New Orleans, LA, United States, Tommy G Jensen, Naval Research Lab Stennis Space Center, Stennis Space Center, MS, United States, Jim G. Richman, Center for Ocean-Atmospheric Prediction Studies, Florida State University, Tallahassee, FL, United States and Jay F Shriver, Naval Research Laboratory, Stennis Space Center, Stennis Space Center, MS, United States
Coordinated Multi-Platform Autonomous Observations in the Northern Arabian Sea Interior (312817)
Andrey Shcherbina1, Craig Lee1, Steven R Jayne2, Luca Raffaele Centurioni3, Stephen Riser4 and NASCar team, (1)Applied Physics Laboratory, University of Washington, Seattle, WA, United States, (2)Woods Hole Oceanographic Institution, Physical Oceanography, Woods Hole, MA, United States, (3)Scripps Institution of Oceanography, La Jolla, CA, United States, (4)University of Washington, School of Oceanography, Seattle, WA, United States

See more of: Physical Oceanography: Mesoscale and Larger