The U.S. Contribution to
Climate Variability and Predictability
Workshop on the Application of
EPIC2001 Data for Improving and Testing Coupled
Atmosphere-Ocean
Models
11-13 May 2005
University of Washington
Workshop Announcement
The originally stated purpose of EPIC2001 was to study poorly understood processes important to coupled ocean-atmosphere models in the eastern Pacific region so as to improve the representation of these processes in such models. The time has come to apply the scientific results from EPIC to the realization of this goal. To this end we are convening a workshop at the University of Washington's Applied Physics Laboratory in Seattle for the dates 11-13 May 2005, ending at noon on the 13th. In order to accomplish the goals of the workshop, we will have a combination of synthesis talks, posters, and roundtable discussions, with short presentations of individual results made during these discussions. All presentations and discussions should explicitly include a focus on use of EPIC data for modeling and parameterization improvement. A goal of the discussions at this workshop is the
development and later dissemination of 'integrated data sets' from EPIC for use by modelers, e.g. from the 95 W line or the EPIC ITCZ region.
We will focus primarily on (1) ocean processes in the cold tongue and the warm pool north of the equator, and (2) issues having to do with the strength, location, and variability of deep convection and cross-equatorial flow in the east Pacific ITCZ. Issues having to do with the stratus region south of the equator are currently being addressed in VOCALS, and will not be emphasized in this meeting. We hope in particular to bring together EPIC investigators and modelers interested in EPIC results in order to increase communication between these groups, to facilitate the transfer of results and useful data to modelers, and to learn from modelers what more we can contribute to solving problems in coupled modeling.
Organizing Committee
Chris Bretherton (breth@atmos.washington.edu)
Meghan Cronin (Meghan.F.Cronin@noaa.gov)
Raghu Murtugudde (ragu@essic.umd.edu)
Dave Raymond (raymond@kestrel.nmt.edu)
Abstracts (to view abstracts click on the session links below; oral presentations can be viewed from the links in the agenda)
Meeting Sessions
Meeting Location
For the location of the University Inn relative to the University of Washington's Applied Physics Lab where the meeting will be held, click on: http://www.apl.washington.edu/travel_to_apl/local_hotels.html
Directions to the Conference Center at APL: Enter the main (east) entrance to Henderson Hall. Ask at the desk or follow signs to the Conference Center on the 6th floor
Agenda (click on author to view presentation)
0830-1000 Plenary Welcome, etc... Cronin Expectations and encouragement Patterson Integrated Data Sets Bretherton General Discussion 1000-1030 Break / poster viewing 1030-1200 Presentations on Fluxes at air-sea interface Cronin (chair) 1030-1040 Flux climatologies over EPIC region in AGCMs C. Bretherton 1040-1050 Using Surface Radiative Cloud Forcing to Diagnose GCM Performance C. Fairall 1050-1100 Cloud Forcing in the stratus deck / cold tongue ITCZ complex from buoys, ISCCP, NCEP2 and ERA40 M. Cronin 1100-1115 Evaluating a hybrid satellite and NWP based turbulent heat flux product using TAO buoys C. Jiang 1115-1200 General Discussion 1200-1330 1330-1500 Presentations on Observations and cloud parameterizations D. Raymond (chair) 1330-1345 What have we learned about convective forcing? D. Raymond 1345-1400 The relationship between wind speed and precipitation in the Pacific ITCZ L. Back 1400-1410 Comparisons of convetive morphology, surface fluxes, and boundary layer recovery in EPIC, TEPPS, and NAME S. Nesbitt 1410-1420 Cloud vertical structure in the eastern tropical Pacific P. Zuidema 1420-1430 Diurnal cycle in the east Pacific C. Lopez 1430-1500 General Discussion 1500-1530 Break / poster viewing 1530-1700 Presentations on Easterly Waves / MJO D. Rayomond (chair) 1530-1545 East Pacific variability in NCEP reanalyses Y. Serra 1545-1600 Nature of east Pacific variability S. de Szoeke 1600-1615 Convective variability across the east Pacific: A radar perspective R. Cifelli 1615-1700 General Discussion 0800-1000 Presentations on Ocean model experiments Murtugudde (chair) 0805-0815 Air-sea interactions: What do we do now? H. Wijesekera 0815-0825 Biases in forced OGCMs and CGCMs G. Vecchi 0825-0835 Impact of Diurnal cycle on upper ocean mixing M. Jochum 0835-0845 Factors that influence model thermocline variability R. Murtugudde 0845-0855 Improving Bjerknes feedbacks in models using observations R. Zhang 0855-0905 Ocean Radiant Heating in Climate Models C. Ohlmann 0905-1000 General Discussion 1000-1030 Break / poster viewing 1030-1210 Presentations on Ocean eddy field Shay (chair) 1030-1040 Turbulent Entrainment Fluxes in the East Pacific Warm Pool Mickett and Gregg 1040-1050 Temperature Front in the Eastern Pacific Ocean near 95W Wijesekera and Paulson 1050-1100 Oceanic Response to Atmospheric Forcing in the Eastern Pacific Shay 1100-1110 Deriving Surface Currents from Observations Bonjean 1110-1120 Potential Vorticity Dynamics at the Equator Thomas 1120-1130 The Need for Eddy Heat (Freshwater) Flux Divergences in the Stratus Region Colbo 1130-1200 General Discussion 1210-1330 1330-1500 Presentations on Atmospheric and coupled model experiments Bretherton (chair) 1330-1345 Regional coupled model results in the east Pacific J. Small 1345-1400 East Pacific modeling / MJO E. Maloney 1400-1415 Marine stratus and its relationship to regional and large-scale circulation P. Xie 1415-1500 General Discussion 1500-1530 Break / poster viewing 1530-1700 Plenary: Do we have the benchmarks/synthesis data sets?
- Legacies of EPIC
- Where do we go from here?0830-1000 Plenary: Session Reports, highlight slideshow and discussion 1000-1030 Break 1030-1200 Plenary: Continued discussion Action Items