AI23A:
Mesoscale and Submesoscale Ocean-Atmosphere Interactions and Influence on Earth’s Climate I
Session ID#: 93423
Session Description:
This session seeks contributions characterizing the influences of mesoscale and submesoscale ocean-atmosphere coupling on Earthâs climate system based on observational, diagnostic, modeling and theoretical studies. The past two decades of observational and modeling studies have identified a fundamental regime of ocean-atmosphere coupling mediated by oceanic SST variability on scales smaller than 1000km. These studies demonstrate that the ocean eddy/front-forced variability of surface turbulent heat, momentum, and radiative fluxes drives an atmospheric response in both in the local atmospheric boundary layer and in the non-local downstream response influencing the development of the synoptic-scale weather systems. These studies have also indicated a significant feedback onto the ocean, influencing the gyre-scale circulation and ocean eddies. In addition, coupled air-sea processes driven by mesoscale and submesoscale variability impact the hydrologic cycle, and are thus important for understanding how climate change will affect terrestrial freshwater distributions.
Observing and modeling systems have evolved to capture mesoscale ocean variability, and are projected to provide new and better characterizations of ocean mesoscale and submesoscale variability. This session will focus on recent progress in this domain; specifically, the session invites contributions on:
1) satellite or observation-based diagnostic analyses;
2) theoretical or process-oriented investigations of the physical mechanisms of the coupling;
3) numerical modeling of the ocean, atmosphere or coupled system to explore the impacts of air-sea interaction on Earthâs climate; and
4) capabilities of current and future satellite and in situ observing systems for observing mesoscale and submesoscale ocean-atmosphere coupling.
Co-Sponsor(s):
Primary Chair: Larry W O'Neill, Oregon State University, Corvallis, OR, United States
Co-chairs: Hyodae Seo, WHOI, Woods Hole, United States, Kyla Drushka, University of Washington, Applied Physics Laboratory, Seattle, WA, United States and Mark A Bourassa, Florida State Univ, Center for Ocean-Atmospheric Prediction Studies, Tallahassee, United States
Primary Liaison: Larry W O'Neill, Oregon State University, Corvallis, OR, United States
Moderators: Larry W O'Neill, Oregon State University, Corvallis, OR, United States and Kyla Drushka, University of Washington, Applied Physics Laboratory, Seattle, WA, United States
Student Paper Review Liaison: Hyodae Seo, WHOI, Woods Hole, United States
Abstracts Submitted to this Session:
Disentangling the Mesoscale Ocean-Atmosphere InteractionsDisentangling the Mesoscale Ocean-Atmosphere Interactions and How to Best Force an Ocean Model (641436)
Lionel Renault, University of California Los Angeles, Los Angeles, CA, United States, Sebastien Masson, Sorbonne Universités (UPMC, Univ Paris 06)-CNRS-IRD-MNHN, LOCEAN Laboratory, Paris, France, Vera Oerder, Instituto Milenio de Oceanografía (IMO), Universidad de Concepción, Concepción, Chile, Swen Jullien, IFREMER, France, Francois Colas, Univ Pierre and Marie Curie-Paris 6, Paris, France, Gurvan Madec, LOCEAN-IPSL, CNRS/IRD/MNHN/Sorbonne Université, Paris, France, James C McWilliams, University of California in Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, United States and Arsouze Thomas, Barcelona Supercomputing Center, Barcelona, Spain
Sea states across current fronts: a case study using numerical wave models and CFOSAT-SWIM data across Agulhas current (652034)
Gwendal Marechal, Ifremer, CNRS, IRD, University of Western Brittany, LOPS, Plouzané, France, Fabrice Ardhuin, University of California, San Diego, Scripps Institution of Oceanography, La Jolla, United States, Alexis Mouche, Ifremer, LOPS, Plouzané, France, Danièle Hauser, CNRS & University Paris-Saclay, LATMOS, Guyancourt, France, Fabrice Collard, OceanDataLab, Plouzané, France and Cédric Tourain, CNES, Toulouse, France
Air-Sea Fluxes and Atmospheric Boundary Layer Variability Across Ocean Fronts (657651)
Carol Anne Clayson1, Hanyuan Liu1 and James B Edson2, (1)Woods Hole Oceanographic Institution, Physical Oceanography, Woods Hole, MA, United States, (2)Woods Hole Oceanographic Institution, Woods Hole, MA, United States
The vertical changes driven by eddy-wind interaction in the Southern Ocean (649732)
Hajoon Song, Yonsei University, Department of Atmospheric Sciences, Seoul, South Korea, John C Marshall, MIT, Cambridge, United States, Dennis Joseph McGillicuddy Jr, Woods Hole Oeanographic Institution, Woods Hole, MA, United States and Hyodae Seo, WHOI, Woods Hole, United States
The role of mesoscale ocean currents in the mixed-layer heat budget and air-sea coupling in the Southern Ocean (641625)
Yu GAO1, Igor V Kamenkovich2, Natalie Perlin3 and Benjamin P Kirtman3, (1)RSMAS, Miami, United States, (2)RSMAS, Miami, FL, United States, (3)University of Miami, Miami, FL, United States
Feedback between Air-Sea Turbulent Momentum Flux and Oceanic Submesoscale Processes (639137)
Xu Chen, Florida State University, Center for Ocean-Atmospheric Prediction Studies, Tallahassee, United States, William K Dewar, Florida State Univ, Tallahassee, United States, Eric Chassignet, Center for Ocean-Atmospheric Prediction Studies, Florida State University, Tallahassee, FL, United States, Mark A Bourassa, Florida State Univ, Center for Ocean-Atmospheric Prediction Studies, Tallahassee, United States and Steven L Morey, Florida State Univ, Tallahassee, FL, United States
