Atmospheric and Hydrospheric Sciences(A)
Session Sub-categoryComplex & General
Session IDA-CG34
TitleExtratropical oceans and atmosphere
Short TitleExtratropical oceans and atmosphere
Main ConvenerNameHatsumi Nishikawa
AffiliationInstitute of Low Temperature Science, Hokkaido University
Co-Convener 1NameYoshi N Sasaki
AffiliationHokkaido University
Co-Convener 2NameSatoru Okajima
AffiliationResearch Center for Advanced Science and Technology
Co-Convener 3NameThomas Spengler
AffiliationUniversity of Bergen
Session LanguageEE
ScopeThe extratopical ocean had been considered passive to atmospheric variability. Recent studies, however, revealed some active role of the extratopical ocean in modulating the atmosphere. The goal of this session is to deepen our understanding of the air-sea interaction in the extratropics. A wide variety of researches whose topics range from mesoscale to basin-scale, and from daily to global warming are welcomed. Researches on cloud, aerosol, and ecosystem related to the extratopical air-sea interaction are also welcomed.
Presentation FormatOral and Poster presentation
Co-Sponsoring Societies
(Society Members)
The Oceanographic Society of Japan, Meteorological Society of Japan
Invited Authors
  • Humio Mitsudera (Institute of Low Temperature Science, Hokkaido University)
  • Noel S Keenlyside (Geophysical Institute, University of Bergen and Bjerknes Centre)
  • Yuki Kanno (Tohoku University)
  • Niklas Schneider (University of Hawaii at Manoa)
Time Presentation No Title Presenter Abstract
Oral Presentation May 21 PM1
13:45 - 14:00 ACG34-01Dynamical frontogenesis in the transitional regions between the subtropical and the subpolar gyresHumio Mitsudera Abstract
14:00 - 14:15 ACG34-02A technique to study coupled ocean-atmosphere climate variabilityA technique to study coupled ocean-atmosphere climate variabilityNoel S Keenlyside Abstract
14:15 - 14:30 ACG34-03Beyond Warm and Cold: An Objective Classification for Maritime Mid-Latitude FrontsClemens Spensberger Abstract
14:30 - 14:45 ACG34-04Changes in Marine Fog over the North Pacific in Warmer ClimatesHideaki Kawai Abstract
14:45 - 15:00 ACG34-05Seasonality in the formation mechanisms for the Mascarene HighAyumu Miyamoto Abstract
15:00 - 15:15 ACG34-06Spiciness anomalies in the upper South Indian OceanMotoki Nagura Abstract
Oral Presentation May 21 PM2
15:30 - 15:45 ACG34-07Isentropic analysis of atmosphere-ocean interactions during cold air outbreaksYuki Kanno Abstract
15:45 - 16:00 ACG34-08Scale-dependence of observed wind stress response to ocean-mesoscale surface temperaturesNiklas Schneider Abstract
16:00 - 16:15 ACG34-09Wind direction associated with mean air-sea heat exchangeFumiaki Ogawa Abstract
16:15 - 16:30 ACG34-10Isentropic Slope Tendency as a Diagnostic for the Evolution of Severe Extratropical CyclonesChris Weijenborg Abstract
16:30 - 16:45 ACG34-11Influence of Sea Surface Temperature Fronts and Jet Streams on the evolution of North Atlantic StormsLeonidas Tsopouridis Abstract
16:45 - 17:00 ACG34-12Influence of surface fluxes on mesoscale cyclone development: idealised simulationsAnnick Terpstra Abstract
Presentation No Title Presenter Abstract
Poster Presentation May 21 Core Time
ACG34-P01 Frontolysis in the Japan Sea using observational dataset with a focus on mixed layer processes Shun Ohishi Abstract
ACG34-P02 Thermally-direct, local atmospheric circulations over oceanic fronts in midlatitudes Kazuaki Nishii Abstract
ACG34-P03 How do differing front types arise? Clemens Spensberger Abstract
ACG34-P04 Effects of Surface Fluxes and Latent Heating on Extratropical Cyclones in an Idealised Linear Framework Kristine Flacké Haualand Abstract
ACG34-P05 Global Climatology of Baroclinicity and its Variations: Role or Air-Sea Interactions Thomas Spengler Abstract
ACG34-P06 Mechanisms for Maintaining Basin-Scale Atmospheric Response to Decadal Variability of the North Pacific Oceanic Frontal Zone Satoru Okajima Abstract
ACG34-P07 Decadal variability of the Kuroshio extension in a high-resolution ocean-atmosphere coupled model Yoshi N Sasaki Abstract
ACG34-P08 Relative contribution of remote influence from tropics and extra-tropical oceanic variability on the interannual-to-decadal variability of the midlatitude atmosphere Bunmei Taguchi Abstract
ACG34-P09 Impact of tropical convections on cold air outbreaks in East Asia Muhammad Rais Abdillah Abstract
ACG34-P10 Covariability between surface wind stress and sea surface temperature in the mid-high latitudes of Southern Hemisphere Masafumi Yagi Abstract