AI14B:
Toward an Improved Understanding of Indian Ocean Dynamics and Its Role in the Monsoon III Posters

Session ID#: 84519

Session Description:
The weather and climate over the Indian Ocean are influenced strongly by the ocean circulation in the Indian Ocean. The seasonal reversal of monsoon winds and concurrent ocean currents, presence of strong barrier layers, the relatively deep thermocline along the equator and many other ocean-atmosphere features make the Indian Ocean unique. The strong oceanic variability in the region shapes the Indian Ocean’s very dynamic role in the intraseasonal, seasonal, and interannual variability of the monsoons, as well as its air-sea interactions. Recent field experiments in the Bay of Bengal, Arabian Sea, Tropical Indian Ocean and over the Maritime Continent as well as related modeling efforts, have advanced our understanding of the Indian Ocean circulation and its role in Monsoon Intraseasonal Oscillations (MISO). Nonetheless, significant gaps remain in understanding, observing, modeling, and predicting Indian Ocean variability and change across a range of timescales. Understanding and reliable prediction of the initiation, propagation, strength, and variability of Monsoon Intraseasonal Oscillations (MISO) in tropical and sub-tropical Indian Ocean-atmosphere constitute building blocks of monsoon forecasting, which is crucial for ensuring water-supply reliability, socioeconomic wellbeing, and safety of nearly one billion inhabitants of the Indian subcontinent. This session invites contributions based on observations, modeling, and theory in the Indian Ocean that focus on understanding and predicting the links between Indian Ocean variability and monsoon systems on (intra)seasonal to interannual timescales, interactions and exchanges between the Indian Ocean and other ocean basins, decadal variability and its prediction, response to climate change and extreme events.
Co-Sponsor(s):
  • PC - Past, Present and Future Climate
  • PL - Physical Oceanography: Mesoscale and Larger
Index Terms:

4504 Air/sea interactions [OCEANOGRAPHY: PHYSICAL]
4513 Decadal ocean variability [OCEANOGRAPHY: PHYSICAL]
4532 General circulation [OCEANOGRAPHY: PHYSICAL]
4572 Upper ocean and mixed layer processes [OCEANOGRAPHY: PHYSICAL]
Primary Chair:  Aneesh C Subramanian, University of Colorado Boulder, Atmospheric and Oceanic Sciences, Boulder, United States
Co-chairs:  Manikandan Mathur, Indian Institute of Technology Madras, Aerospace Engineering, Chennai, India, Hemantha W Wijesekera, Naval Research Laboratory, Ocean Sciences, Stennis Space Center, MS, United States and Harindra Joseph Fernando, University of Notre Dame, Department of Civil and Environmental Engineering and Earth Sciences, Notre Dame, United States
Primary Liaison:  Aneesh C Subramanian, Scripps Institution of Oceanography, Center for Western Weather and Water Extremes (CW3E), La Jolla, CA, United States
Moderators:  Aneesh C Subramanian, University of Colorado Boulder, Boulder, CO, United States and Harindra J.S. Fernando, University of Notre Dame, Notre Dame, IN, United States
Student Paper Review Liaison:  Aneesh Subramanian, University of Colorado at Boulder, Department of Atmospheric and Oceanic Sciences, Boulder, United States

Abstracts Submitted to this Session:

 
Weakening relationship between East Asian summer monsoon and Asian-Pacific Oscillation after 1990s (642230)
Wei Hua, Chengdu University of Information Technology, Chengdu, China
 
Air-sea interaction and memory of Indian Ocean in MJO prediction of JMA’s coupled seasonal prediction system (642787)
Takuya Komori1, Shoji Hirahara2, Yutaro Kubo2, Yukimasa Adachi2, Yosuke Fujii3, Ichiro Ishikawa4 and Takuma Yoshida1, (1)Numerical Prediction Development Center, Japan Meteorological Agency, Tsukuba, Japan, (2)Japan Meteorological Agency, Tokyo, Japan, (3)Meteorological Research Institute, Japan Meteorological Agency, Tsukuba, Japan, (4)Meteorological Research Inst, Tsukuba, Japan
 
An Anomalous Atmospheric Event during 2019 MISO-BOB Field Campaign (646975)
Edgar Gonzalez1, Reneta Dimitrova2,3, Harindra J.S. Fernando1, Raghavendra Krishnamurthy4, Sandeep Dnyandeo Wagh5, S.U.P. Jinadasa6, Shiromani Jayawardena7, Ahmed Muslim8, Zahid Hameed9, Vincent Amelie10 and Hemantha W Wijesekera11, (1)University of Notre Dame, Notre Dame, IN, United States, (2)University of Notre Dame, Civil & Environmental Engineering & Earth Sciences, Notre Dame, United States, (3)Sofia University, Sofia, Bulgaria, (4)Pacific Northwest National Laboratory, Richland, United States, (5)University of Notre Dame, Department of Civil and Environmental Engineering and Earth Sciences, Notre Dame, IN, United States, (6)National Aquatic Resources Research and Development Agenc, Colombo, Sri Lanka, (7)Meteorological Department, Colombo 7, Sri Lanka, (8)Maldives Meteorological Service, Gan Island, Maldives, (9)Maldives Meteorological Service, Hulhule' 22000, Maldives, (10)Seychelles Meteorological Authority, Mahe, Seychelles, (11)Naval Research Laboratory, Ocean Sciences, Stennis Space Center, MS, United States
 
Atmosphere-ocean interaction in the Indian monsoon (655061)
Maria K. Flatau1, Sue Chen2, James A Ridout2, Adam Rydbeck3, Hemantha W Wijesekera4, Matthew Janiga1 and Tommy G Jensen5, (1)US Naval Research Laboratory, Marine Meteorology Division, Monterey, CA, United States, (2)Naval Research Laboratory, Monterey, CA, United States, (3)U.S. Naval Research Laboratory, Ocean Sciences, Stennis Space Center, MS, United States, (4)Naval Research Laboratory, Ocean Sciences, Stennis Space Center, MS, United States, (5)US Naval Research Laboratory, Ocean Sciences Division, Stennis Space Center, MS, United States
 
Boundary Currents off the Sri Lankan East and South Coasts Observed with PIES (648350)
Matthias J Lankhorst1, Arachaporn Anutaliya1, Uwe Send2, Julie McClean1 and Janet Sprintall1, (1)Scripps Institution of Oceanography, La Jolla, CA, United States, (2)Scripps Institution of Oceanography, La Jolla, United States
 
Detecting Monsoon Intraseasonal Oscillations in the Indian Ocean in Salinity (637817)
Subrahmanyam Bulusu, University of South Carolina Columbia, School of the Earth, Ocean and Environment, Columbia, SC, United States, Corinne B Trott, University of Southern Mississippi, School of Ocean Science and Engineering, Mississippi, MS, United States and Heather Leigh Roman-Stork, University of South Carolina Columbia, Columbia, SC, United States
 
Diurnal Signal in Turbulence During SW Monsoon in the Bay of Bengal (651410)
Ritabrata Thakur1, Emily Shroyer2, Rama Govindarajan1, J. Thomas Farrar3 and Jim Moum4, (1)Tata Institute of Fundamental Research, International Centre for Theoretical Sciences, Bengaluru, India, (2)Oregon State Univ, Corvallis, OR, United States, (3)Woods Hole Oceanographic Inst, Department of Physical Oceanography, Woods Hole, MA, United States, (4)Oregon State University, College of Earth Ocean & Atmospheric Sciences, Corvalis, OR, United States
 
Effect of Stratification and Wind on Upwelling Source Depth and SST: A Case Study Comparing the Arabian Sea and Bay of Bengal During the Summer Monsoon (645933)
Jing He, Woods Hole Oceanographic Institution, Woods Hole, United States; MIT-WHOI Joint Program, Cambridge, MA, United States and Amala Mahadevan, Woods Hole Oceanographic Institution, Woods Hole, MA, United States
 
Effects of climate modes on interannual variability of upwelling in the tropical Indian Ocean. (648109)
Xiaolin Zhang, University of Hamburg, Hamburg, Germany and Weiqing Han, Univ Colorado, Boulder, CO, United States
 
Epochal variability in the Equatorial Indian Ocean subsurface temperature and the forcing mechanisms. (638988)
Sandeep Mohapatra, Indian Institute of Tropical Meteorology, Pune, India; University of Pune, Pune, India and Dr. Gnanaseelan Chellappan, Indian Institute of Tropical Meteorology, Ocean Modelling development and Data Assimilation, Pune, India
 
Estimation and Prediction of the Upper Ocean Circulation in the Bay of Bengal (656925)
Ganesh Gopalakrishnan, University of California San Diego, SIO, La Jolla, CA, United States, Aneesh C Subramanian, University of Colorado Boulder, Boulder, CO, United States, Arthur J Miller, University of California San Diego, La Jolla, CA, United States, Hyodae Seo, WHOI, Woods Hole, United States and Debasis Sengupta, Indian Institute of Science, Centre for Atmospheric and Oceanic Sciences, Bangalore, India
 
Evolution of Thermal Fronts in the Somali Current System (647376)
Michael J Caruso and Hans Christian Graber, University of Miami, Center for Southeastern Tropical Advanced Remote Sensing, Miami, FL, United States
 
Hydrodynamic and Thermohaline Effects on the Gulf due to Super Cyclone Gonu of 2007 (641715)
Wonhyun Lee1, James Michael Kaihatu2 and Jayaram Veeramony1, (1)U.S. Naval Research Laboratory, Stennis Space Center, MS, United States, (2)Texas A&M University, Zachry Department of Civil and Environmental Engineering, College Station, United States
 
Impact of ocean observation systems on ocean analyses and subseasonal forecasts of the monsoon intraseasonal oscillations (657860)
Aneesh C Subramanian, University of Colorado Boulder, Atmospheric and Oceanic Sciences, Boulder, United States, Frederic Vitart, ECMWF, Reading, UK, United Kingdom, Magdalena Alonso Balmaseda, European Centre for Medium-Range Weather Forecasts, Reading, United Kingdom, Yosuke Fujii, Meteorological Research Institute, Japan Meteorological Agency, Tsukuba, Japan, Yuhei Takaya, Meteorological Research Institute, Department of Atmosphere, Ocean, and Earth System Modeling Research, Ibaraki, Japan and Arthur J Miller, University of California San Diego, La Jolla, CA, United States
 
Long Wave Measurement Corrections for the OMNI Buoy Network (645002)
Jossia Joseph, National Institute of Ocean Technology, Ocean Observation Systems, Chennai, India, Amit Tandon, University of Massachusetts, Dartmouth, Mechanical Engineering, Dartmouth, MA, United States, Venkatesan Ramasamy, National Institute of Ocean Technology, Ocean Observation Systems, Chennai, TN, India, J. Thomas Farrar, Woods Hole Oceanographic Inst, Department of Physical Oceanography, Woods Hole, MA, United States and Robert A Weller, WHOI, Monument Beach, MA, United States
 
Long-term Observations of Turbulent Measurements in the Southern Bay of Bengal (643472)
Conrad A Luecke, NRC Postdoctoral Fellow at Naval Research Laboratory, Stennis Space Center, MS, United States, Hemantha W Wijesekera, Naval Research Laboratory, Ocean Sciences, Stennis Space Center, MS, United States, Ewa Jarosz, Naval Research Lab Stennis Space Center, Stennis Space Center, MS, United States, David W Wang, U.S. Naval Research Laboratory, Ocean Sciences, Stennis Space Center, MS, United States and S.U.P. Jinadasa, National Aquatic Resources Research and Development Agenc, Colombo, Sri Lanka
 
Observations and modelling of wind seas and swells in the Bay of Bengal (641694)
David W Wang, U.S. Naval Research Laboratory, Ocean Sciences, Stennis Space Center, MS, United States, James D Dykes, Naval Research Laboratory SSC, Stennis Space Center, MS, United States, Hemantha W Wijesekera, Naval Research Laboratory, Ocean Sciences, Stennis Space Center, MS, United States, Ewa Jarosz, Naval Research Lab Stennis Space Center, Stennis Space Center, MS, United States, Tommy G Jensen, US Naval Research Laboratory, Ocean Sciences Division, Stennis Space Center, MS, United States and S.U.P. Jinadasa, National Aquatic Resources Research and Development Agenc, Colombo, Sri Lanka
 
On the Sea Surface Temperature variability and mesoscale dispersion in the Bay of Bengal during 2015 and 2019 monsoon as tracked by drifters (643661)
Siddhant Kerhalkar1, Amit Tandon2, Emily Shroyer3, Luca Raffaele Centurioni4, Jonathan D Nash5, Jennifer A MacKinnon4, J. Thomas Farrar6 and Leah Johnson7, (1)University of Massachusetts Dartmouth, New Bedford, MA, United States, (2)University of Massachusetts, Dartmouth, Mechanical Engineering, Dartmouth, MA, United States, (3)Oregon State Univ, Corvallis, OR, United States, (4)Scripps Institution of Oceanography, La Jolla, CA, United States, (5)Oregon State University, Corvallis, OR, United States, (6)Woods Hole Oceanographic Inst, Department of Physical Oceanography, Woods Hole, MA, United States, (7)Brown University, Providence, RI, United States
 
Persian Gulf Water eddies and filaments inject oxygenated, highly saline water to the Bay of Bengal (643346)
Peter Sheehan1, Benjamin Webber2, Alejandra Sanchez-Franks3, Adrian John Matthews4, Karen J. Heywood1 and P. N. Vinaychandran5, (1)University of East Anglia, Norwich, United Kingdom, (2)University of East Anglia, Norwich, NR4, United Kingdom, (3)National Oceanography Centre, Southampton, United Kingdom, (4)Univ East Anglia, Norwich, United Kingdom, (5)Indian Institute of Science, Centre for Atmospheric and Oceanic Sciences, Bangalore, India
 
Resonant Forcing, Salinity Stratification and Near-Inertial Oscillations in the North Bay of Bengal (651694)
Dipanjan Chaudhuri1, Debasis Sengupta1, Manikandan Mathur2 and R Venkatsen3, (1)Indian Institute of Science, Centre for Atmospheric and Oceanic Sciences, Bangalore, India, (2)Indian Institute of Technology Madras, Aerospace Engineering, Chennai, India, (3)NIOT, India
 
Sea surface conditions in the Bay of Bengal since the early Pliocene (656143)
Drew Alexander Lowdermilk1, Petra Dekens1, Alexander Stine2 and Lyndsey R Fox3, (1)San Francisco State University, San Francisco, CA, United States, (2)San Francisco State University, Earth & Climate Sciences, San Francisco, United States, (3)Kingston University, Surrey, United Kingdom
 
Semiannual Variability of Mid–depth Zonal Currents along 5°N in the Eastern Indian Ocean: Characteristics and Causes (656766)
Ke Huang1, Dongxiao Wang2, Weiqing Han3, Ming Feng4, Gengxin Chen1, Weiqiang Wang5, Ju Chen6 and Jian Li7, (1)State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China, (2)Sun Yet-sen University, Guangzhou, China, (3)Univ of Colorado, Boulder, CO, United States, (4)CSIRO, Oceans and Atmosphere, Crawley, WA, Australia, (5)South China Sea Institute of Oceanology, Chinese Academy of Sciences, State Key Laboratory of Tropical Oceanography, Guangzhou 510301, China, (6)SCSIO South China Sea Institute of Oceanology, Chinese Acaademy of Sciences, Guangzhou, China, (7)SCSIO South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
 
Simulation of large anti-cyclonic eddies generated by westward propagating Rossby waves in the southern Bay of Bengal during the summer Monsoon season 2019 (643979)
Tommy G Jensen1, Hemantha W Wijesekera1, Adam Rydbeck1, Ewa Jarosz1, David W Wang1, Conrad A Luecke2, Maria K. Flatau3 and Jerome Schmidt4, (1)U.S. Naval Research Laboratory, Ocean Sciences, Stennis Space Center, MS, United States, (2)NRC Postdoctoral Fellow at Naval Research Laboratory, Stennis Space Center, MS, United States, (3)US Naval Research Laboratory, Marine Meteorology Division, Monterey, CA, United States, (4)U.S. Naval Research Laboratory, Marine Meteorology, Monterey, CA, United States
 
Somali Current eddy interaction during the Indian Southwest Monsoon (647341)
Bryce A Melzer, Perspecta, Stennis Space Center, MS, United States, Tommy G Jensen, US Naval Research Laboratory, Ocean Sciences Division, Stennis Space Center, MS, United States, Adam Rydbeck, U.S. Naval Research Laboratory, Ocean Sciences, Stennis Space Center, MS, United States and Ebenezer Nyadjro, University of New Orleans, Stennis Space Center, MS, United States
 
Submesoscale temperature inversions in the Bay of Bengal during the winter monsoon (646666)
Sanjiv Ramachandran1, Amit Tandon2, Amala Mahadevan3, Stephen G Yeager4, Ping Chang5, Gokhan Danabasoglu6 and Alper Altuntas6, (1)Texas A&M University College Station, Oceanography, College Station, TX, United States, (2)University of Massachusetts, Dartmouth, Mechanical Engineering, Dartmouth, MA, United States, (3)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (4)National Center for Atmospheric Research, Climate and Global Dynamics Lab, Boulder, CO, United States, (5)Texas A & M Univ, Oceanography, College Station, United States, (6)National Center for Atmospheric Research, Boulder, CO, United States
 
The role of the fresh surface layer in governing air-sea interaction in the northern Bay of Bengal (641497)
Robert A Weller, Woods Hole Oceanographic Institution, Woods Hole, MA, United States, J. Thomas Farrar, Woods Hole Oceanographic Inst, Department of Physical Oceanography, Woods Hole, MA, United States, Roger Lukas, Univ Hawaii, Honolulu, HI, United States and Fernando Santiago-Mandujano, University of Hawaii, Honolulu, HI, United States
 
Variability of Water Exchanges Through the Strait of Hormuz (651067)
Panagiotis Vasou1, Vassilios Vervatis2, George Krokos1, Ibrahim Hoteit1 and Sarantis S Sofianos2, (1)King Abdullah University of Science and Technology, Division of Physical Science and Engineering, Thuwal, Saudi Arabia, (2)National and Kapodistrian University of Athens, Division of Environmental Physics, Athens, Greece
 
Water Mass Intrusion from Arabian Sea to the Bay of Bengal during summer; Experimental Observations in August 2015 (656795)
S.U.P Jinadasa1,2, Gayan Pathirana3, Anusha Priyanthi Wijesundara1, Hemantha W Wijesekara4 and Harindra J.S. Fernando5, (1)National Aquatic Resources Research and Development Agency, Colombo, Sri Lanka, (2)The Ocean University of Sri Lanka, Oceanography, Colombo, Sri Lanka, (3)University of Ruhuna, Sri Lanka., Oceanography and Marine Geology,, Colombo, Sri Lanka, (4)Naval Research Lab Stennis Space Center, Stennis Space Center, United States, (5)University of Notre Dame, Notre Dame, United States
 
Weakly-nonlinear Ekman pumping in the Sri Lanka Dome (647889)
Kerstin Cullen, Oregon State University, Collage of Earth Ocean and Atmospheric Science, Corvallis, OR, United States and Emily Shroyer, Oregon State Univ, Corvallis, OR, United States