CAS-XIV (Cape Town, 16-24 February 2006)

1. CAS-XIV(Cape Town, 16-24 February 2006) • Develop improved and cost-effective forecasting techniques with emphasis on high-impact weather and promote their application among Members. • Enable governments, societies and economic sectors to realize fully the benefit of weather-related information in critical decision-making. • Demonstrate improvements in the prediction of high-impact weather through the exploitation of advances in scientific understanding, new observing systems, observational network design, data assimilation and modeling techniques, and information systems. • Demonstrate the benefits of improved global, mesoscale, and nowcasting forecast systems to all societies.

2. CAS ORGANIZATIONAL COMPONENTS: 2006-2010 Commission for Atmospheric Sciences JSSC/EPAC(Environmental Pollution Atmospheric Chemistry) JSC/WWRP(Word Weather Research Program) WG Numerical Experimentation(WCRP)

3. TROPICAL METEOROLOGY RESEARCH Promotes, Identifies and supports research initiatives relevant to the high-impact weather forecast requirements of NMHSs in tropical and monsoon regions, and thus contribute to social and economic benefits by preventing or mitigatingdisastersvia imporved forecasts of tropical cyclones and anomalous monsoon rainfall. Contact: arep@wmo.int

4. Drafting of Strategic Plan for World Weather Research Program (WWRP): Tropical Meteorology Research World Meteorological Organization CAS Working Group on Tropical Meteorological Research Guangzhou, China 22-24 March 2007

5. WGTMR – before(6 components and 6 projects) • Tropical Cyclones: • Rapporteur • Project TC1 • Project TC1 • Project TC3 • Monsoons: • Rapporteur • IPEAM/Project M1 • Project M2 • Project M3 • Monsoon Activity Centers • TropicalLimited Area NWP • Interaction between tropical and midlatitudeweather systems • Tropical drought and rain producing systems • Climate change aspects of tropical weather

6. Past Activities - TC • Projects • Tropical Cyclone Landfall Processes • Tropical Cyclone Disaster Reduction (Training) • Extra-Tropical Transition (Initiation of THORPEX-PARC) • International Workshop on Tropical Cyclones • IWTC-1 1985, Bangkok, Thailand • IWTC-2 1989, Manila, Philippines • IWTC-3 1993, Huatulco, Mexico • IWTC-4 1998, Haikou, China • IWTC-5 2002, Carins, Australia • IWTC-6 2006, San Jose, Costa Rica • Publications • Global Guide to Tropical Cyclone Forecasting (1993) • Global Perspectives on Tropical Cyclones. (1995-1997 )

7. Past Activities - Monsoon • Projects • M2 Project (Long-Term Asian and African Monsoon) • IPEAM/including M1 Project (East Asian Monsoon Research) • M3 Project (American Monsoon) • Monsoon Activity Centers • Delhi • Kuala Lumpur • Nairobi • International Workshop on Monsoons • IWM-1 1995, Bali Indonesia • IWM-2 2000, Delhi India • IWM-3 2004, Hangzhou China • WMONEX 25+ 2006, Kuala Lumpur Malaysia • Monsoon Training Workshops • Publications • Global Monsoon Systems: Research and Forecast (2005) • World Scientific Series on East Asian Meteorology

8. WGTMR – Proposed(2 components) • Tropical Cyclone Panel: • Expert Team on Observation, Processes and Prediction • Expert Team on Landfall Processes • Expert Team on Climate Impacts on TCs • Limited Area NWP • Monsoon Panel: • Expert Team on Severe Monsoon Weather • Expert Team on Climate Impacts on Monsoon Weather • Monsoon Activity Centers

9. Monsoon Panel Strategy • Climate Scales: Global change, Decadal, Interannual, Seasonal, down to intraseasonal • Cooperate with and support WCRP monsoon activities • Cooperate with regional and international programs (e.g., APEC Climate Center) • Research on Impacts on local weather • Weather Scales: Convection, Meso-, Synoptic, up to Intraseasonal • Regional and Local phenomena, effects of terrain • Top priority: Torrential rainfall, flooding • Joint efforts with TMRP/TC component

10. Activities • Scientific and Training Workshops • Review state of the art, current issues and future directions • Facilitate researchers - forecasters interactions • Relating research results to forecasters on an ongoing basis • Update WMO Report on Monsoon for Member NMHSs. • WMO Monsoon Activity Centres • New Delhi (IMD: South Asia) • Kuala Lumpur (MMS: Southeast Asia) • Beijing (CMA, East Asia) • Encourage, endorse and support monsoon research that is relevant to forecast of high-impart weather through regional and international cooperation

11. Research Projects • Encourage, endorse and support weather scale monsoon research through regional and international cooperation • Examples • STORM (Severe Thunderstorms – Observations & Regional Modeling ) • SCHeREX Southern China Heavy Rainfall Experiment (MAPHRISC) • SoWMEX Southwest Monsoon Experiment (CWB/NTU) • TiMREX Terrain-induced Monsoon Rainfall Experiment (US NCAR and universities) • East China Sea Precipatation System (Pukyong and Nagoya U)

12. Prof. Renhe Zhang, CMA Taiwan Island SCHeREX * Pre-Mei-Yu front * DROPSONDE MISSIONS? Island Soundings * * sharp SST gradient → baroclinic boundary layer enhances LLJ? SoWMEX /TiMREX Ship Sounding upstream conditions, surface fluxes, stability → blocking, Inversion, convection Prof. Ben Jou Taiwan U. Dr. Wen Chau Lee, NCAR

13. A study on the kinematic characteristics of precipitation system by dual Doppler radar analysis 2 Air-Sea Interaction Based on Satellite Data 3 A study of precipitation-inducing atmospheric motions through the assimilation of a synoptic data 4 Development of meteorological prediction model using MIS(Meteorological Information System) 5 Studies of precipitation system around northern part on the East China sea 1 Global Research Laboratory Program Prof. Dong-In Lee, Pukyong N. U.

14. East China Sea Rainfall Systems Prof. Hiroshi Uyed, Nagoya U. （COBRA, NICT） Typhoon Doppler radar Radiosonde May, June, September 2007-2009

15. Workshops • IWM-4: • Time: Late 2008 • Location: Possibly Malaysia or China • Possible joint meeting with CLIVAR AAMP • Update WMO TD No. 1266, balance between climate and severe weather topics • Possible: • 8th training workshop on monsoon (late 2008) • Workshop on QPE/QPF of TC and monsoon (2009)