Workshop Agenda

Session 1, Monday, 8:30am-12:10pm

Local, boundary layer and free troposphere response to SST fronts

Chairs: J. Small, D. Chelton

8:30-8:45Justin SmallWelcome, Introductory remarks, and aims of workshop
8:45-9:15L. O'NeillDynamics and variability of surface wind speed and divergence over mid-latitude ocean fronts
9:15-9:45S. MinobeDiurnal precipitation variability over the Gulf Stream and the Kuroshio
9:45-10:05N. SchneiderThe role of back pressure in air-sea interaction at weak SST fronts
10:05-10:25Y. KawaiIntensive observations over the Kuroshio Extension front in the baiu season
10:25-10:50Break
10:50-11:10R. PlougonvenAtmospheric response to sea surface temperature mesoscale structures
11:10-11:30T. KilpatrickBoundary layer convergence above a midlatitude SST front and free atmosphere response
11:30-11:50H. SeoDynamical response of the Arctic surface winds to sea ice variability
11:50-12:10N. PerlinModeling atmospheric boundary layer response to mesoscale sea surface temperature variations
12:10-1:15Lunch (CG cafeteria: not paid for)
 

Session 2, Monday, 1:15-4:55pm

Response to SST fronts: oceanic feedback and fully coupled processes

Chairs: M. Alexander, A. Miller

1:15-1:45D. CheltonThe Influence of Oceanic Mesoscale Eddies on Surface Stress
1:45-2:15L. ThompsonLinking sea surface temperature, surface flux, and heat content in the North Atlantic: what can we learn about predictability?
2:15-2:35T. JoyceThe ocean perspective on frontal air-sea exchange over the wintertime Gulf Stream
2:35-2:55B. DerembleOn the Potential Vorticity Dynamics of Eighteen Degree Water
2:55-3:20Break
3:20-3:40M. NonakaUncertainty and predictability in the Kuroshio Extension jet in an eddy-resolving OGCM driven by interannually varying winds
3:40-4:00L. YuSatellite observations of poleward shift of Southern Hemisphere westerlies and its coupling with the Antarctic Circumpolar Current Fronts
4:00-4:20D. PutrasahanInterannual Variability of the Agulhas Leakage and Shifts in the Agulhas Return Current Path
4:20-4:55Discussion
6:00pmReception @ the NCAR Mesa Lab (paid for)
 

Session 3, Tuesday, 8:30am-12:00

Climatic response to SST Fronts/Variability: Atlantic Basin

Chairs: C. Frankignoul, Ping Chang

8:30-9:00N. KeenlysideOcean-atmosphere interaction in the extra-tropical North Atlantic
9:00-9:30Y. FeliksLow frequency variability in mid-latitude atmosphere induced by oceanic thermal front with application to the North Atlantic
9:30-9:50J. KnightTwo new strands of evidence for a lack of ocean-atmosphere coupling in climate models
9:50-10:10L. CiastoObserved Relationships between Gulf Stream SST Variability and the North Atlantic Atmospheric Circulation
10:10-10:40Break
10:40-11:00N.-E. OmraniImpact of oceanic front on Northern Hemispheric coupled stratosphere/troposphere-system
11:00-11:20L. SheldonDeep convection of the Gulf Stream and its potential role in ocean-atmosphere coupling
11:20-11:40F. OgawaPotential importance of midlatitude oceanic frontal latitude on the atmospheric annular mode variability as revealed from aqua-planet experiments
11:40-12:00F. CodronAtmospheric Circulations Induced by a Mid-Latitude SST Front: A GCM Study
12:00-1:30Lunch (CG cafeteria: not paid for)
 

Session 4, Tuesday, 1:30pm-5:00pm

Climatic response to SST Fronts/Variability: Pacific Basin

Chairs: N. Schneider, L. Thompson

1:30-2:00B. QiuDecadal variability, impact and prediction of the Kuroshio Extension system
2:00-2:30M. AlexanderAir-Sea interaction over the North Pacific: diagnosing the role of Kuroshio-Oyashio Extension variability
2:30-2:50A. MillerMesoscale coupled ocean-atmosphere feedbacks in the Kuroshio Extension
2:50-3:10C. FrankignoulInfluence of the variability of the Kuroshio Extension on the atmospheric circulation
3:10-3:35Break
3:35-3:55B. TaguchiClimatic influences of decadal-scale latitudinal shift in the North Pacific subarctic frontal zone
3:55-4:15D. SmirnovThe atmospheric response to Oyashio frontal shifts in an atmospheric GCM
4:15-4:35G. ZhouAtmospheric response to North Pacific SST: the role of model resolution and eddy-mean-flow interaction
4:35-5:00Discussion
6:00Group Dinner (not paid for)
 

Session 5, Wednesday, 8:30am-11:35am

Impact of SST fronts on storm tracks & extremes

Chairs: H. Nakamura, N. Keenlyside

8:30-9:00W. RobinsonWintertime Gulf Stream-atmosphere interactions: effects of model resolution and climate
9:00-9:30J. BoothWintertime Evolution of Baroclinicity and Moisture in the Western Boundary Currents
9:30-9:50T. JoyceNorthern Hemisphere Winter Atmospheric Transient Eddy Heat fluxes and the Gulf Stream and Kuroshio-Oyashio Extension Variability
9:50-10:10A. Kuwano-YoshidaAtmospheric responses to the SST fronts in the northern hemisphere in an AGCM
10:10-10:35Break
10:35-10:55J. SmallStorm track response to Ocean Fronts in a global high-resolution climate model
10:55-11:15J.-S. HsiehFrontal-scale air-sea interaction of the winter cyclones over the Gulf Stream extension region in a high-resolution coupled regional climate model
11:15-11:35P. ChangVariability of Winter Extreme Flux Events in the Kuroshio Extension and Gulf Stream Extension Regions
11:35-1:00Lunch (CG cafeteria: not paid for)
 

Session 6, Wednesday, 1:00pm-4:00pm

Looking ahead: required datasets, experimental designs, and analysis for air-sea interaction studies

Chairs: M. Alexander, S. Minobe

This session will synthesise the previous sessions and directly address the following research questions: 1. What drives the local atmospheric response to SST fronts? 2. How to estimate/diagnose the large-scale atmospheric response. 3. What is the feedback onto the ocean and the coupled problem response? For each of these questions we wish to discuss a) the best methods and experimental design: b) areas of limitation or weakness in current methods and models and how/whether they can be improved: and c) metrics that can be used for the assessments.

A potential outcome would be to formulate coordinated model experiments to address the foci, and which would best utilize available and/or planned observational data, and reanalysis data, for validation. We would also like to make a statement of recommendation on which observed datasets (satellite and in-situ) are required to address these questions.

The following talks will help introduce and motivate the discussion:

1:00-1:30H. NakamuraMulti-scale Impacts of the Midlatitude Ocean on the Atmosphere: Role of Western Boundary Currents and Associated Frontal Zones as Revealed in the Hotspot Project
2:00-2:15J. SmallHigh-resolution global model for community analysis
2:15-3:00Other short motivating talks - To be decided
3:00-4:00Discussion
End
 

Posters

Pezzi, CO2 fluxes within Brazil/Malvinas Confluence

Y. Feliks, Oscillatory climate modes in Eastern Mediterranean, India monsoon, Tropical Pacific and their synchronization with the North Atlantic Oscillation

  • Dates: August 5-7, 2013
  • Venue: Center Green, National Center for Atmospheric Research (NCAR), Boulder, CO, USA
  • By Invitation Only.
  • Announcement
  • Agenda
  • Presentations & Videos
  • Justin Small, NCAR
  • Young-Oh Kwon, WHOI
  • Claude Frankignoul, Universite Pierre et Marie Curie
  • Mike Alexander, NOAA
  • Dima Smirnov, NOAA