SoWMEX

Prudence CHIAN

12 August 2008

OUTLINE

• Overview of SoWMEX

• Mei-yu Cases

Introduction

• Southwest Monsoon Experiment ( SoWMEX )

• Terrain-influenced Monsoon Rainfall Experiment ( TiMREX )

Duration (SOP: May15~June30)19-

May20-

May21-

May22-

May23-

May24-

May25-

May26-

May27-

May28-

May29-

May30-

May31-

May

IOP-1 IOP-2

IOP-3

1-Jun 2-Jun 3-Jun 4-Jun 5-Jun 6-Jun 7-Jun 8-Jun 9-Jun10-Jun

11-Jun

12-Jun

13-Jun

IOP-4 IOP-6 IOP-7

IOP-5

14-Jun

15-Jun

16-Jun

17-Jun

18-Jun

19-Jun

20-Jun

21-Jun

22-Jun

23-Jun

24-Jun

25-Jun

26-Jun

IOP-8 IOP-9

EOP : 21Z May 29 ~ 18Z June 4

SOP : Special Observation PeriodIOP : Intensive Observation PeriodEOP : Extensive Observation Period

GOAL

• Improve QPE/QPF during Asian Summer Monsoon Season

• Quantitative Precipitation Estimation (QPE)

• Quantitative Precipitation Forcasting (QPF)

Application

• 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 dropsondeship sounding

Japan x-band Doppler radar system

JW collision type disdrometer NCAR SPOL

Micro rain radar (wavelength : 1.25 cm)

vertically pointing rain profiler (Verti-X)

NCAR GPS dropsonde

TEAM-R Precipitation Occurrence Sensor System (POSS)

2D-Video Disdrometer (2DVD)

Observation Strategy-Sounding

Intensive Observation Area

Funding Support

• National Science Foundation of USA

• National Science Council

• Central Weather Bureau

Project Participant參與單位 參與項目 備註

國科會支助各大學

計畫辦公室作業，地基加放探空 (925) ，船舶探空 (2) ，機載探空 (5/100) ，垂直指向降雨雷達（美，加，韓）， TEAM 雷達，研討會，國內外學生參與實驗作業，國外學者參與實驗等。國內大學：台大，中大，文化，師大，國防大 作業單位：民航局，水利署，環保署， NCDR

菲律賓氣象局澳大利亞氣象局加拿大氣象局

中央氣象局

計畫辦公室作業，機載探空 (38/100) ，地基探空加放(400) ，離島探空加放 (200) ， SPOL 在台基地建置和作業費用，作業雷達運行，作業測站運行， 觀測資料即時傳輸，實驗預報支援，實驗模式支援，資料管理中心，作業指揮中心運作等。

 

空軍氣象聯隊和大氣海洋局 地基和離島探空加放作業 (900) ，船舶探空作業 (2) 。 國防大學

美國國家自然基金會支助： NCAR 和各大學

NCAR-SPOL 雷達在台灣觀測作業與資料整理分析，協助實驗資料管理和作業指揮中心設計等。大學： U Hawaii, U Washington, UC Davis, UCLA, Utah U, CSU, Oklahoma U

NOAA + NASA

日本 Nagoya U X-band 都卜勒雷達 (1) ，高解析度雲模式 日本贈送加拿大 McGill U 和加拿大氣象局 MRR2 (1) + POSS (4) 文化 MRR2(4)

韓國 Pukyung NU 和Kyungpook U JW Disdrometer (1) + Verti-X (1) + POSS (1)

中大 ISS + JWD 水利署 JWD

SoWMEX 2008 Field Catalog

Collections of Field Catalog- Operational Products

Satellite– IR/Vis/WV channels for global/Asia/Taiwan domains with

30min update – 31,06531,065 images collected

Radar– Reflectivity and radial velocity for four radars with 6 to 10min

update – 248,995248,995 images collected

Surface– Surface analysis/mesonet and precipitation

observations/Taipower lightning with one hour to10min update

– 31,14231,142 plots collected Upper Air

– Upper air analysis/skew-t/time-high with 3 hourly update as available

– 5,9625,962 plots collected

馮欽賜 , 2008:Review of Field Catalog and Data Archive

Collections of Field Catalog- Model/Forecast Products

Include forecasts from CWB-WRF (45/15/5km domains) and global models of CWB, NCEP, JMA and ECMWF.

~200,000~200,000 forecast plots collected during the field experiment

馮欽賜 , 2008:Review of Field Catalog and Data Archive

Collections of Field Catalog- Research Products

Include real-time products of COSMIC sounding, dropsonde, rain measurement system, NCAR-Spol and ISS wind profiler and surface observations, the latter three with 7-10min update.

~50,000~50,000 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)

Model/Forcast

• Operation_CWB-WRF (45km,15km,5km)

• Denial_CWB-WRF (45km,15km,5km)

• 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.