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First West
African Monsoon Modeling and Evaluation |
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Organizers: Yongkang Xue, William K.-M. Lau, and Kerry H. Cook
The West African Monsoon Modeling and Evaluation project (WAMME) uses general circulation models (GCMs) and regional climate models (RCMs) to address issues regarding the role of land-ocean-atmosphere interaction, land-use and water-use change, vegetation dynamics, as well as dust, on West African monsoon (WAM) development. Eight GCM groups and five RCM groups have participated in this project. This workshop will discuss results from the WAMME first stage of experiment, WAM modeling issues, future strategies, and coordination with other projects, such as CEOP, International Monsoon Year, AMMA, the UCAR African initiative, and C20C etc.
1). WAMME Results and Related Science. Chairs: William K.-M. Lau and Kerry H. Cook
8:15-8:25 Brief introduction to the WAMME initiative Yongkang Xue, University of California, Los Angeles, USA., William K-M Lau, Kerry H. Cook
8:25-8:45 Analyses of the first West African Monsoon Modeling and Evaluation (WAMME) Experiments Yongkang Xue, University of California, Los Angeles, USA., William K-M Lau, Kerry H. Cook, David Rowell, Jinming Feng, Aaron Boone, Fernando De Sales, Paul Dirmeyer, Leonard M. Druyan, Matthew Fulakeza, Zhichang Guo, S. M. Hagos, S.S. Ibrah, Kyu-Myong Kim, Akio Kitoh, Abdourahamane Konare, Vadlamani Kumar, Benjamin Lamptey, Patrick Lonergan, Isabelle Poccard Leclercq, Natalie Mahowald, Wilfran Moufouma-Okia, Phil Pegion, Jae Schemm, Siegfried D. Schubert, Andrea Sealy, Wassila Thiaw, Augustin Vintzileos, Edward K. Vizy, Steve Williams, Man-Li C. Wu
8:45-9:00 Modeling interannual variability of the WAM jump using WAMME regional model simulations Kerry H. Cook, Cornell University, USA, J. F. Newman, E. K. Vizy, and S. M. Hagos
9:00-9:15 West African summer monsoon climate: A comparison of RM3 downscaled analyses to downscaled GCM forecasts Leonard M. Druyan, NASA/Goddard Institute for Space Studies, USA. Matthew Fulakeza and Patrick Lonergan
9:15-9:30 Influence of soil moisture initialization methodology on simulating the West African Monsoon system in a Regional Climate Model Wilfran Moufouma-Okia, Met Office, Hadley Centre for Climate Prediction and Research, U.K. Dave Rowell and Richard Jones.
9:30-9:45 West African Monsoon in a 20km-mesh Atmospheric GCM Akio Kitoh, Meteorological Research Institute, Japan, Masahiro Hosaka and Osamu Arakawa, Meteorological Research Institute, Tsukuba, Japan
9:45-9:55 NASA GMAO WAMME simulation and the impact of soil moisture gradient, vegetation, and orography on the Africa Easterly Jet and West Africa Monsoon Wu, Man-Li C., GSFC, NASA
9:55-10:25 Coffee break
2). Relationship of WAMME to Other Programs: Developing Interactions and Synergy. Chairs: Kerry H. Cook and David Rowell
10:25-10:35 WAMME, CEOP, and International Monsoon Year
10:35- 10:50 An overview of UCAR Activities in Africa A. Laing, UCAR, R. Pandya, R. Bruintjes, B. Lamptey, P. Kucera, F. Semazzi, T. Yoksas, M. Ramamurthy, M. Weingroff, T. Spangler, A. Traore, M. Konate, N. Fall, R. Boger, T. Warner, S. Herrmann, M. Moncrieff and R. Low
10:50-11:10 The International CLIVAR Climate of the Twentieth Century Project (C20C) Chris Folland, Met Office Hadley Centre, UK and Jim Kinter, Center for Ocean-Land-Atmosphere Studies, USA
11:10-11:20 How do the large-scale models represent the West African Monsoon mean state and variability (the AMMA-EU experience)? PM Ruti, ENEA, Roma, Italy F. Hourdin, S. Janicot
11:20-11:30 Applications of ALMIP multi-model land surface model diagnostics for evaluating the surface component of the WAMME GCMs Aaron Boone and the ALMIP Working Group, GAME-CNRM, Météo-France, Toulouse, France
11:30-11:45 The AMMA radiosonde programme and its implications for the future of atmospheric monitoring over Africa Andreas H. Fink, University of Cologne, Köln, Germany; and C. Thorncroft, S. Janicot, M. W. Douglas, A. Beljaars, D. J. Parker, E. Afiesimama, J. B. Ngamini, A. Augusti-Panareda, F. Dide, A. Diedhiou, T. Lebel, J. Polcher, J. L. Redelsperger, and G. Wilson
11:45 – 1:45 Lunch Break
3). What next? Thoughts and issues in designing future African climate studies. Chairs: Yongkang Xue and William K-M Lau
1:45-2:00 Some thoughts on SST forcing of Sahel rainfall David Rowell, Met Office, Hadley Centre for Climate Prediction and Research, UK
2:00-2:15 Scale interactions in the West African Monsoon Chris Thorncroft, University at Albany, SUNY, USA
2:15-2:30 Land-atmosphere coupling strength in AGCMs –results from GLACE multi-model experiments Zhichang Guo, Center for Ocean-Land-Atmosphere Interactions, USA, Paul Dirmeyer, R. Koster.
2:30-2:45 Effects of Saharan dust on the diurnal and seasonal variability of the West African Monsoon William K-M Lau, NASA/Goddard Space Flight Center, USA, Kyu-Myong Kim, Yogesh Y. Sud, Gregory K. Walker
2:45-2:55 Regional modeling study of the effect of Saharan dust on the West African monsoon Abdourahamane Konare, University of Cocody, Ivory Coast, A.S. Zakey, F. Solmon, F. Giorgi, S. Raucher, S. Ibrah, X. Bi
2:55-3:05 Dust and African precipitation Natalie Mahowald, Cornell University, USA.
3:05-3:15 Designing regional model simulations of the WAM: Lessons learned Edward K. Vizy, Cornell University, USA., E. E. Riddle, S. M. Hagos, C. M. Patricola, and K.H. Cook
3:15-3:25 On the evolution of African Easterly Waves and precipitation systems over the Sahel as a function of horizontal model resolution Augustin Vintzileos, National Center for Environmental Prediction and UCAR, USA.
3:25-3:30 Coupled ocean/atmosphere regional modeling of the WAM system E. E. Riddle, Cornell University, USA, S. M. Hagos , C. M. Patricola, E. K. Vizy, and K.H. Cook
3:30 – 4:00 Coffee break
4). Discussion Chairs: Yongkang Xue, William K-M Lau, and Kerry H. Cook 4:00 – 6:00
The workshop is sponsored by Coordinated Energy and Water Cycle Observation Project (CEOP), U.S. National Science Foundation, U.S. National Aeronautics and Space Administration, and American Meteorological Society Climate Variability and Change Committee.
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