PL41B:
Climate Variability, Ocean Dynamics, and Biogeochemical Cycles in the Indian Ocean I

Session ID#: 92630

Session Description:
Ocean circulation, climate and biogeochemistry are important components for climate change prediction. While climate variability can affect ocean circulation and biogeochemical processes, variations of ocean circulation and biogeochemical cycles can alter air-sea gas exchange, Earth’s energy balance and thereby affect climate. Together, climate and biogeochemistry have prominent impacts on biodiversity, coastal fisheries and human health, and are crucial for climate change mitigation and adaptation. Yet, our understanding of their associated processes in the Indian Ocean, where in situ observations are often lacking, is severely limited. Toward this end, the on-going 2nd international Indian Ocean Expedition (IIOE-2) is collecting invaluable new observational data in the Indian Ocean through 2025.

The session focuses on the Indian Ocean circulation, air-sea-land coupled processes and their interactions with biogeochemical processes, and will synthesize the latest observational and modelling efforts directed toward understanding physical processes associated with climate variability, climate change, variations in biogeochemical cycles, as well as their interactions. Papers are invited that address Indian Ocean variability on various timescales (from subseasonal to centennial) from the past into the future. Examples include phenomena such as MJO, IOD, decadal climate variability and climate change, changes in the carbon cycle and atmospheric aerosols, and others.

Co-Sponsor(s):
  • AI - Air-Sea Interactions
  • OB - Ocean Biology and Biogeochemistry
  • PC - Past, Present and Future Climate
Index Terms:
Primary Chair:  Lei Zhang, University of Colorado Boulder, Atmospheric and Oceanic Sciences, Boulder, United States
Co-chairs:  Weiqing Han, University of Colorado Boulder, Atmospheric and Oceanic Sciences, Boulder, CO, United States, Raleigh R Hood, University of Maryland Center for Environmental Science Horn Point Laboratory, Cambridge, MD, United States and Jeremy David Wiggert, The University of Southern Mississippi, Division of Marine Science, Stennis Space Center, MS, United States
Primary Liaison:  Lei Zhang, University of Colorado Boulder, Atmospheric and Oceanic Sciences, Boulder, United States
Moderators:  Lei Zhang, University of Colorado Boulder, Atmospheric and Oceanic Sciences, Boulder, United States and Weiqing Han, University of Colorado Boulder, Atmospheric and Oceanic Sciences, Boulder, CO, United States
Student Paper Review Liaison:  Lei Zhang, University of Colorado Boulder, Atmospheric and Oceanic Sciences, Boulder, United States

Abstracts Submitted to this Session:

Air-sea flux and SST Variability associated with Atmospheric Rivers in the Southeast Indian Ocean (651902)
Toshiaki Shinoda1, Weiqing Han2 and Xue Feng1, (1)Texas A&M University Corpus Christi, Corpus Christi, TX, United States, (2)Univ of Colorado, Boulder, CO, United States
Impact of local atmospheric forcing on the evolution of the South Indian Ocean heat content during and after the 2014-2016 El Niño event (647399)
Denis Volkov, Cooperative Institute for Marine and Atmospheric Studies Miami, Miami, FL, United States; Atlantic Oceanographic and Meteorological Laboratory, Miami, FL, United States, Michael Rudko, Cooperative Institute for Marine and Atmospheric Studies, University of Miami, Miami, United States and Sang-Ki Lee, University of Miami, Cooperative Institute for Marine and Atmospheric Studies, Miami, FL, United States
Estimating a time series of meridional heat transport of the Indian Ocean at 34°S (651465)
K McMonigal1, Lisa M Beal1, Shane Elipot1, Josh K Willis2 and Juliet Clair Hermes3, (1)University of Miami, Rosenstiel School of Marine and Atmospheric Science, Miami, FL, United States, (2)Jet Propulsion Laboratory, Pasadena, CA, United States, (3)South African Environmental Observation Network (SAEON), Cape Town, South Africa
Emergence of an equatorial mode of climate variability in the Indian Ocean (647090)
Pedro N DiNezio1, Martin Puy2, Kaustubh Thirumalai2, Jessica E Tierney3 and Fei-Fei Jin4, (1)University of Texas at Austin, Austin, TX, United States, (2)University of Texas at Austin, Institute for Geophysics, Austin, TX, United States, (3)University of Arizona, Department of Geosciences, Tucson, AZ, United States, (4)University of Hawaii at Manoa, Honolulu, United States
Salinity anomaly as a brake on the positive Indian Ocean Dipole-Experimental assessments using a regional ocean model- (640118)
Shoichiro Kido, The University of Tokyo, Department of Earth and Planetary Science, Graduate School of Science, the University of Tokyo, Tokyo, Japan, Tomoki Tozuka, The University of Tokyo, Tokyo, Japan and Weiqing Han, University of Colorado Boulder, Boulder, CO, United States
Oceanic impacts on detour of Madden-Julian Oscillation near the Maritime Continent (642409)
Lei Zhou, Shanghai Jiao Tong University, Institute of Oceanography, Shanghai, China and Raghuram G Murtugudde, Univ of MD--ESSIC, College Park, MD, United States
A Lagrangian view of the Red Sea Overflow Water journey from the Gulf of Aden to the Arabian Sea (656724)
Viviane V Menezes, Woods Hole Oceanographic Institution, Woods Hole, MA, United States
Shelf-break upwelling and productivity over the North Kenya Banks: the importance of large-scale ocean dynamics (637553)
Zoe Jacobs1, Fatma Jebri2, Dionysios E Raitsos3, Katya Popova4, Meric A Srokosz4, Stuart C Painter4, Francesco Nencioli5, Michael J Roberts6, Joseph Kamau7, Matthew Palmer8 and Juliane U Wihsgott9, (1)National Oceanography Centre, Marine Systems Modelling, Southampton, United Kingdom, (2)National Oceanography Center, Soton, Southampton, United Kingdom, (3)Plymouth Marine Laboratory (PML), Plymouth, United Kingdom, (4)National Oceanography Centre, Southampton, United Kingdom, (5)Plymouth Marine Laboratory, Plymouth, United Kingdom, (6)Nelson Mandela Metropolitan University, Oceanography, Port Elizabeth, South Africa, (7)Kenya Marine and Fisheries Institute, Kenya, (8)National Oceanography Centre, Liverpool, United Kingdom, (9)National Oceanography Center, Liverpool, United Kingdom