PO43C:
From Monsoons to Mixing: Coupled Ocean-Atmosphere Processes and Biogeochemical Response in the Indian Ocean I


Session ID#: 7489

Session Description:
The Indian Ocean is a unique semi-enclosed ocean basin whose dynamics are forced by and coupled to the summer and winter South Asian Monsoons. The feedback between the ocean and atmosphere influences regional to global weather patterns and biological productivity, often with major societal impact. This session aims to synthesize our understanding of the role of the oceans on the South Asian Monsoons through observations, modeling, and theory. Topics of interest include upper ocean processes, air-sea interaction, boundary currents, planetary waves, freshwater dispersal, and mixing. We encourage presentations that characterize the upper ocean structure and identify key processes that set the lateral and vertical temperature-salinity distribution over a range of length and time scales. We also encourage presentations on how all of these physical processes impact bio-optical, biogeochemical and ecological responses, including fisheries and humans.
Primary Chair:  Amit Tandon, University of Massachusetts, Dartmouth, Mechanical Engineering, Dartmouth, MA, United States
Chairs:  Andrew Lucas, Scripps Institution of Oceanography, La Jolla, CA, United States, Debasis Sengupta, Indian Institute of Science, Bangalore, India and Raleigh R Hood, University of Maryland Center for Environmental Science Horn Point Laboratory, Cambridge, MD, United States
Moderators:  Theresa Paluszkiewicz, Office of Naval Research, Arlington, VA, United States and Amala Mahadevan, Woods Hole Oceanographic Institution, Woods Hole, MA, United States
Student Paper Review Liaison:  Hemantha W Wijesekera, Naval Research Laboratory, Stennis Space Center, MS, United States
Index Terms:
Co-Sponsor(s):
  • A - Air-sea Interactions and Upper Ocean Processes
  • B - Biogeochemistry and Nutrients
  • TE - Tropical and Equatorial Environments
  • TP - Turbulent Processes

Abstracts Submitted to this Session:

A Time Series View of Surface Forcing and Upper Ocean Variability in the northern Bay of Bengal (89663)
Robert A Weller1, J. Thomas Farrar1, Jim Moum2, Emily Shroyer3, Debasis Sengupta4, M. Ravichandran5 and R Venkatsen6, (1)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (2)Oregon State University, College of Earth Ocean & Atmospheric Sciences, Corvalis, OR, United States, (3)Oregon State Univ, Corvallis, OR, United States, (4)Indian Institute of Science, Bangalore, India, (5)INCOIS, (6)NIOT
Near-surface Stratification and Submesoscale Fronts in the north Bay of Bengal during Summer Monsoon of 2014 and 2015. (91130)
Debasis Sengupta1, Sree Lekha Jarugula2, Eric A D'Asaro3, Dipanjan Chaudhuri4, Shivaprasad. S5, Amit Tandon6, Ravichandran M5, Andrew Lucas7 and Harper L Simmons8, (1)Indian Institute of Science, Bangalore, India, (2)Indian Institute of Science, Center for Atmospheric and Oceanic Sciences, Bangalore, India, (3)Applied Physics Laboratory University of Washington, Seattle, WA, United States, (4)Indian Institute of Science, Centre for Atmospheric and Oceanic Sciences, Bangalore, India, (5)Indian National Centre for Ocean Information Services, Hyderabad, India, (6)University of Massachusetts, Dartmouth, Mechanical Engineering, Dartmouth, MA, United States, (7)Scripps Institution of Oceanography, La Jolla, CA, United States, (8)University of Alaska Fairbanks, Fairbanks, AK, United States
Instability of thin, freshwater layers in the Bay of Bengal (90747)
Jonathan D Nash1, Jennifer A MacKinnon2, Andrew Pickering3, Emily Shroyer1, Andrew Lucas4, Amit Tandon5, Amala Mahadevan6, Debasis Sengupta7 and Kevin Alexander Tennyson3, (1)Oregon State Univ, Corvallis, OR, United States, (2)University of California San Diego, La Jolla, CA, United States, (3)Oregon State University, Corvallis, OR, United States, (4)Scripps Institution of Oceanography, La Jolla, CA, United States, (5)University of Massachusetts, Dartmouth, Mechanical Engineering, Dartmouth, MA, United States, (6)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (7)Indian Institute of Science, Bangalore, India
Ship-based Observations of a Salinity-dominated Density Front in the Bay of Bengal during August-September 2015 (91272)
Sree Lekha Jarugula, Indian Institute of Science, Center for Atmospheric and Oceanic Sciences, Bangalore, India, Eric A D'Asaro, Applied Physics Laboratory University of Washington, Seattle, WA, United States, Shivaprasad. S, Indian National Centre for Ocean Information Services, Hyderabad, India, Dipanjan Chaudhuri, Indian Institute of Science, Centre for Atmospheric and Oceanic Sciences, Bangalore, India, Andrew Lucas, Scripps Institution of Oceanography, La Jolla, CA, United States, Robert A Weller, Woods Hole Oceanographic Institution, Woods Hole, MA, United States and Debasis Sengupta, Indian Institute of Science, Bangalore, India
Subduction and Restratification Along an Eddy Edge: The Role of Ekman Dynamics and Submesoscale Processes (91293)
Andrew Lucas1, Debasis Sengupta2, Eric A D'Asaro3, Jonathan D Nash4, Emily Shroyer4, Amala Mahadevan5, Amit Tandon6, Jennifer A MacKinnon7 and Robert Pinkel7, (1)Scripps Institution of Oceanography, La Jolla, CA, United States, (2)Indian Institute of Science, Bangalore, India, (3)Applied Physics Laboratory University of Washington, Seattle, WA, United States, (4)Oregon State Univ, Corvallis, OR, United States, (5)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (6)University of Massachusetts, Dartmouth, Mechanical Engineering, Dartmouth, MA, United States, (7)University of California San Diego, La Jolla, CA, United States
Rapid Near-inertial Internal Wave Group Propagation Through the Transition Layer from Float and Glider Observations in the Bay of Bengal (90409)
Shaun Johnston, Daniel L Rudnick and Jeffrey T Sherman, Scripps Institution of Oceanography, La Jolla, CA, United States
Mixed Layer Heat and Fresh Water Balance in North Bay of Bengal (18N, 90E) Using a Seaglider and Mooring (92532)
V P Thangaprakash1, M S Girishkumar1, Shivaprasad. S1, Dipanjan Chaudhuri2, N Sureshkumar1, M. Ravichandran1, Debasis Sengupta3 and Robert A Weller4, (1)Indian National Centre for Ocean Information Services (INCOIS), Hyderabad, India, (2)Indian Institute of Science, Centre for Atmospheric and Oceanic Sciences, Bangalore, India, (3)Indian Institute of Science, Bangalore, India, (4)Woods Hole Oceanographic Institution, Woods Hole, MA, United States
Summer Monsoon winds and density fronts: Results from a submesoscale-permitting model (89973)
Amit Tandon, University of Massachusetts, Dartmouth, Mechanical Engineering, Dartmouth, MA, United States, Sanjiv Ramachandran, University of Massachusetts Dartmouth, New Bedford, MA, United States and Amala Mahadevan, Woods Hole Oceanographic Institution, Woods Hole, MA, United States