PL003
Climate variability, ocean dynamics and biogeochemical cycles in the Indian Ocean
Session ID#: 84734
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 2
nd 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.
Index Terms:
1616 Climate variability [GLOBAL CHANGE]
4273 Physical and biogeochemical interactions [OCEANOGRAPHY: GENERAL]
4805 Biogeochemical cycles, processes, and modeling [OCEANOGRAPHY: CHEMICAL]
9340 Indian Ocean [GEOGRAPHIC LOCATION]
Primary Chair: Lei Zhang, University of Colorado Boulder, Atmospheric and Oceanic Sciences, Boulder, CO, 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, CO, United States
Two Dominant Modes of the Upper Indian Ocean Thermal Variability Identified from the Vertical Structure (636510)
Yuanlong Li, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China, Weiqing Han, University of Colorado Boulder, Boulder, CO, United States, Lei Zhang, University of Colorado Boulder, Department of Atmospheric and Oceanic Sciences, Boulder, United States and Fan Wang, Institute of Oceanology, Center for Ocean Mega-Science, Chinese Academy of Sciences, Chinese Academy of Sciences Key Laboratory of Ocean Circulation and Waves, Qingdao, China
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)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
Dynamics of Asian Summer Monsoon Response to Anthropogenic Aerosol Forcing (639541)
Hai Wang1, Shang-Ping Xie2, Yu Kosaka3, Qinyu Liu1 and Yan DU4, (1)Ocean University of China, Qingdao, China, (2)Scripps Institution of Oceanography, La Jolla, CA, United States, (3)University of Tokyo, Tokyo, Japan, (4)South China Sea Institute of Oceanology, Chinese Academy of Sciences, State Key Laboratory of Tropical Oceanography, Guangzhou, China
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
Warming rage change in the Agulhas system during the past decade (642098)
LEI Huang1,2, Wei Zhuang1 and Xiao-Hai Yan2, (1)Xiamen University, State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen, China, (2)University of Delaware, College of Earth, Ocean and Environment, Newark, DE, United States
An extreme negative Indian Ocean Dipole event in 2016:dynamics and predictability (645075)
Bo Lu1, Hongli Ren1, Adam A Scaife2, Hong-Li Ren1, Nick J Dunstone2, Doug M Smith2, Jianghua Wan1, Rosemary Eade2, Craig MacLachlan2 and Margaret Gordon2, (1)CMA, Beijing, China, (2)Met Office Hadley center for Climate Change, Exeter, United Kingdom
Tropical Oceanic Intraseasonal Variabilities associated with Central Indian Ocean Mode (645079)
Ze Meng, Shanghai Jiao Tong University, School of Oceanography, Shanghai, China, Lei Zhou, Shanghai Jiao Tong University, Institute of Oceanography, Shanghai, China, Raghuram G Murtugudde, Univ of MD--ESSIC, College Park, MD, United States, Qingxuan Yang, Ocean University of China, Qingdao, China and Kandaga Pujiana, NOAA/PMEL, Seattle, WA, United States
A prolonged high-salinity event in the Northern Arabian Sea during 2014-2017 (645596)
Yuhong Zhang1, Yan DU1,2, W.N.D.S Jayarathna1,2, Qiwei SUN1,2, Fengchao Yao3 and Ming Feng4,5, (1)South China Sea Institute of Oceanology, Chinese Academy of Sciences, State Key Laboratory of Tropical Oceanography, Guangzhou, China, (2)University of Chinese Academy of Sciences, Beijing, China, (3)King Abdullah University of Science and Technology, Red Sea Research Center, Thuwal, Saudi Arabia, (4)CSIRO, Oceans and Atmosphere, Crawley, WA, Australia, (5)Centre for Southern Hemisphere Oceans Research, Hobart, WA, Australia
Distribution of phytoplankton biomass and abundance in the Arabian Gulf and the Sea of Oman (645848)
Igor Polikarpov1, Mariya Saburova1 and Faiza Yousef Al-Yamani2, (1)Kuwait Institute for Scientific Research, Ecosystem-Based Management of Marine Resources Program, Environment and Life Sciences Research Center, Kuwait, Kuwait, (2)Kuwait Institute for Scientific Research, Ecosystem based Management of Marine Resources Program, Environment and Life Sciences Research Center, Kuwait, Kuwait
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, Geosciences, Tucson, AZ, United States, (4)University of Hawaii at Manoa, Honolulu, HI, 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
Elucidating the response of the ocean to the Madden Julian Oscillation (647571)
Wei-Ching Hsu1,2, Kelvin John Richards1,2, H Annamalai1,2, Kazuyoshi Kikuchi1,2 and Yanli Jia1,2, (1)International Pacific Research Center, Honolulu, HI, United States, (2)University of Hawaii at Manoa, Honolulu, HI, United States
Improving the prediction of western North Pacific summer precipitation using a Bayesian dynamic linear model (648703)
Wen Xing, University of Colorado Boulder, Atmospheric and Oceanic Sciences, Boulder, CO, United States, Weiqing Han, Univ of Colorado, Boulder, CO, United States and Lei Zhang, University of Colorado Boulder, Department of Atmospheric and Oceanic Sciences, Boulder, United States
Ningaloo Niño/Niña and their regional climate impacts as recorded by corals along the coast of Western Australia (Invited) (649070)
Yan DU1, Lun Su1, Ming Feng2 and Jinbao Li3, (1)SCSIO South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China, (2)CSIRO, Oceans and Atmosphere, Crawley, WA, Australia, (3)University of Hong Kong, Hong Kong, China
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
Indian Ocean Warming Trend Reduces Pacific Warming Response to Anthropogenic Greenhouse Gases: An Interbasin Thermostat Mechanism (651935)
Lei Zhang, University of Colorado Boulder, Atmospheric and Oceanic Sciences, Boulder, CO, United States, Weiqing Han, Univ of Colorado, Boulder, CO, United States, Kristopher B Karnauskas, Woods Hole Oceanographic Inst, Woods Hole, MA, United States, Gerald Meehl, National Center for Atmospheric Research, Boulder, CO, United States, Aixue Hu, NCAR, Boulder, CO, United States, Nan A Rosenbloom, NCAR/CGD, Boulder, CO, United States and Toshiaki Shinoda, Texas A&M University, Corpus Christi, TX, United States
Indian Ocean Salt Transport Variability at 34°S (653658)
Kathryn Gunn1, Lisa M Beal2, Shane Elipot2 and K McMonigal2, (1)University of Miami, Rosenstiel School of Marine and Atmospheric Science, Miami, United States, (2)University of Miami, Rosenstiel School of Marine and Atmospheric Science, Miami, FL, United States
Shifts in bacterial communities reveal subtle biogeochemical regimes of the central Indian Ocean (656334)
Melissa Brock1, Alyse Larkin2 and Adam Martiny2, (1)University of California Irvine, Ecology and Evolutionary Biology, Irvine, CA, United States, (2)University of California Irvine, Earth System Science, Irvine, CA, United States
Effects of climate modes on decadal variability of upwelling in the tropical Indian Ocean (657723)
Xuemeng Tian, Ocean University of China, China, Xiaolin Zhang, University of Colorado, Boulder, United States and Weiqing Han, Univ Colorado, Boulder, CO, United States
The Anomalous Heat Content/Sea Level Changes in the South Indian Ocean During 1992-2018 (658224)
Mike Rudko, Atlantic Oceanographic and Meteorological Laboratory, Miami, FL, United States; Cooperative Institute for Marine and Atmospheric Studies Miami, Miami, FL, United States, Denis Volkov, Cooperative Institute for Marine and Atmospheric Studies, University of Miami, Miami, FL, United States and Sang-Ki Lee, University of Miami, Cooperative Institute for Marine and Atmospheric Studies, Miami, FL, United States
