The 8 th GAME International Science Panel Meeting (Thailand, 10-11 November, 2003)

1. The 8th GAME International Science Panel Meeting (Thailand, 10-11 November, 2003) Present Status of KEOP Activities in Korea Dr. C. H. Cho Meteorological Research Institute, KMA Email: choch@metri.re.kr Speaker: B. J. Sohn, SEES, Seoul National University, Korea

2. What is KEOP ?

3. Objectives Contents KEOP Objectives and Contents • Produce intensive observation data to clarify the 3-dimensional structure of heavy rainfall system in summer associated with typhoon or Changma (Rainy Season in Korea) • Enhance our understanding of heavy rainfall system in summer and improve its model prediction from the analysis and application studies of intensive observation data • Intensive field-based observation of severe weather in summer associated with typhoon and Changma • Long-term monitoring of surface fluxes for improvement of physical processes between land surface and atmosphere • Analysis and application of intensive observation data for elucidating the formation and development mechanism of heavy rainfall system • Establishment of observation network for real-time monitoring system of severe weather in the southwestern part of the Korean peninsula • Performance of fundamental research for designing optical observation network • Operation of KEOP data center

4. Establishment of NCIO and Its Application • Haenam & Muan Site -

5. National Center of Intensive Observation for Severe Weathers(NCIO) Background Climatological Feature • Production of comprehensive observation data for analyzing multi-scale interaction among various atmospheric scales of severe weather system in summer • Cost-effective maintenance and management of advanced meteorological equipments Max. Depth of Snowfall(cm) Annual PPTN(mm) Occurrence Frequency of Heavy Rainfall X-Band Doppler Weather Radar National Center for Intensive Observation of Severe Weathers

6. Production of observation data with high temporal and spatial resolution for the monitoring, analysis and prediction of severe weather Autosonde Producing continuous upper air observation data Boundary Layer Radar Producing one-minute profile of vertical and horizontal winds Intensive Observation Period Optical Rain Gauge Producing information to distinguish between rain, snow, intensity of precipitation Micro Rain Radar Producing vertical profiles of rain rate, LWC and drop size distribution Flux Tower Producing sensible, latent, and radiative fluses over land surface Production of observation data for improvement of the land-surface hydrological and cloud-precipitation processes in cloud physics and numerical model. Characteristics of Installed Meteorological Instruments

7. AUTOSONDE

8. WIND PROFILER Antenna Signal Processing System System Operating Shelter

9. Flux Data Management System KoFlux web site Local PC FTP connect SRM9 modem 20 m flux tower FTP connect

10. International Collaboration

11. Linkage with International Programs

12. 36 CEOP Reference Sites NCIO (6th CEOP Ref. Site)

13. Period Network Region KEOP-2003 Objectives Investigate MCSs and disturbances in the Changma Front Using Intensive Observation Period(IOP) Data with High Temporal and Spatial Resolution → Analysis of the Structure of the Changma Front and Genesis and Development of Attendant MCS → Improved Understanding and Prediction of Changma 26 June – 9 July, 2003(14 Days) SW Korean Peninsula • Upper-Air : Haenam, Huekasando, Kwangju, Gosan • Radar : Jindo(S-band), Muan(X-band) • WPR : Haenam • ORG, MRR, Flux : Haenam • KEOP-2003 Network

14. Conceptual Model of MCC Genesis and Development (KEOP-2003) 0225LST 2301LST L 0301LST 2325LST 0325LST 0001LST 0425LST 0025LST 0501LST 0113LST 0525LST 0149LST