So WMEX Prudence CHIAN 12 August 2008 OUTLINE

So. WMEX Prudence CHIAN 12 August 2008

OUTLINE • Overview of So. WMEX • Mei-yu Cases

Introduction • Southwest Monsoon Experiment ( So. WMEX ) • Terrain-influenced Monsoon Rainfall Experiment ( Ti. MREX )

Duration (SOP: May 15~June 30) 19 May 20 May 21 May 22 May 23 May 24 May 25 May 26 May 27 May IOP-1 28 May 29 May 30 May 31 May IOP-2 IOP-3 1 -Jun 2 -Jun 3 -Jun 4 -Jun IOP-4 5 -Jun 6 -Jun 7 -Jun 8 -Jun 9 -Jun 10 Jun 11 Jun IOP-6 12 Jun 13 Jun IOP-7 IOP-5 14 Jun 15 Jun 16 Jun 17 Jun 18 Jun 19 Jun IOP-8 EOP : 21 Z May 29 ~ 18 Z June 4 SOP : Special Observation Period IOP : Intensive Observation Period EOP : Extensive Observation Period 20 Jun 21 Jun 22 Jun 23 Jun 24 Jun IOP-9 25 Jun 26 Jun

GOAL • Improve QPE/QPF during Asian Summer Monsoon Season • Quantitative Precipitation Estimation (QPE) • Quantitative Precipitation Forcasting Application (QPF) • Early warning of flood and landslide • Regional water resource management

Observational Facilities • NCAR SPOL (S-band Dual Polarization Doppler Radar) • TEAM-R (Taiwan Experimental Atmospheric Mobile – Radar) • ISS (Intergrating Sounding System) • MRR (Micro Rain Radar) • Upstream sounding operating dropsonde ship sounding

Japan x-band Doppler radar system JW collision type disdrometer NCAR GPS dropsonde vertically pointing rain profiler (Verti -X) NCAR SPOL Micro rain radar (wavelength : 1. 25 cm)

TEAM-R Precipitation Occurrence Sensor System (POSS) 2 D-Video Disdrometer (2 DVD)

Observation Strategy -Sounding

Intensive Observation Area

Funding Support • National Science Foundation of USA • National Science Council • Central Weather Bureau

So. WMEX 2008 Field Catalog

Collections of Field Catalog - Operational Products n Satellite – IR/Vis/WV channels for global/Asia/Taiwan domains with 30 min update – 31, 065 images collected n Radar – Reflectivity and radial velocity for four radars with 6 to 10 min update – 248, 995 images collected n Surface – Surface analysis/mesonet and precipitation observations/Taipower lightning with one hour to 10 min update – 31, 142 plots collected n Upper Air – Upper air analysis/skew-t/time-high with 3 hourly update as available – 5, 962 plots collected 馮欽賜, 2008: Review of Field Catalog and Data Archive

Collections of Field Catalog - Model/Forecast Products n n Include forecasts from CWB-WRF (45/15/5 km domains) and global models of CWB, NCEP, JMA and ECMWF. ~200, 000 forecast plots collected during the field experiment 馮欽賜, 2008: Review of Field Catalog and Data Archive

Collections of Field Catalog - Research Products n n Include real-time products of COSMIC sounding, dropsonde, rain measurement system, NCAR-Spol and ISS wind profiler and surface observations, the latter three with 7 -10 min update. ~50, 000 images collected during the field experiment 馮欽賜, 2008: Review of Field Catalog and Data Archive

Mei-yu front Cases • • • CWB Raingauge data May 28 to May 31 June 2 to June 5 June 14 to June 17 June 24 to June 29

Rain Gauge (CWB) 台南測站 屏東測站 Precipitation (mm) 400 300 200 100 0 300 五 六 100 1 3 5 7 9 1113151719212325272931 Date 0 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 Date 恆春測站 高雄測站 五 六 1 3 5 7 9 1113151719212325272931 Date 400 300 200 100 0 Precipitation (mm) 五 六 200 五 六 1 3 5 7 9 1113151719212325272931 Date

Model/Forcast • • • Operation_CWB-WRF (45 km, 15 km, 5 km) Denial_CWB-WRF (45 km, 15 km, 5 km) Operation_CWB-GFS Denial_CWB-GFS JMA-GFS NCEP-GFS

Denial_CWB-GFS Operation_CWB-GFS JMA NCEP

Denial_CWB-GFS Operation_CWB-GFS JMA NCEP

Denial_CWB-GFS Operation_CWB-GFS JMA NCEP

Thanks for your attention.