MAHASRI/AMY Monsoon Asian Hydro- Atmosphere Scientific Research - PowerPoint PPT Presentation

MAHASRI/AMY と日変化研究 Monsoon Asian Hydro- Atmosphere Scientific Research and Prediction Initiative http:// mahasri.cr.chiba-u.ac.jp / Jun Matsumoto Department of Geography, Tokyo Metropolitan University JAMSTEC/ IORGC

Data Management Water and Energy Budget Northeast Asia Studies MAHASRI Worldwide Integrated Study East Asia of Extremes Tibet/Himalaya Stable Water Isotope Tropics Intercomparison Group Transferability Water Resource Applications Project CEOP IAEA

Objective Objective "To establish hydro-meteorological prediction system, particularly up to seasonal time-scale, through better scientific understanding of Asian monsoon variability".

Long- -term Time Schedule term Time Schedule Long • October, 2006-March, 2010: Research phase I (2006-2007: Build-up new observation systems) • 2008(-2009): IOP-year (AMY: Asian Monsoon Year) • 2011-2014: Research phase II • 2015: Concluding phase

Key Science Issues (1) Key Science Issues (1) • Atmosphere-ocean-land interactions in the Asian monsoon system- • Scale-interactions among diurnal, synoptic, intraseasonal and seasonal variability of Asian monsoon rainfall • Effect of various-scale orography on monsoon rainfall

Diurnal, Intraseasonal and Seasonal variations over Sumatera (Sakurai et al., 2004; JMSJ ) (a) GMS Cloud Top Temperature 300 hPa Eassterly (b) (c) Westward migration Eastward migration 850 hPa Westerly 01 02 01 02 M J J A S O N D J F M A M J J A S O N D J F M A ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ N AA’ ↑ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ BB’ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ △ ○ EQ CC’ ↓ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ △ △ DD’ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ S EE’

Time-cross section of Tbb in June/July of 1998 Plateau Edge Plateau Edge Onset of rainy season over East Tibet (6 月 13 日 ) 7月17-21日 6月21-23日 6月26-28日 (Yasunari & Miwa, 2006: JMSJ)

2. Rainstorm genesis mechanism 2. Rainstorm genesis mechanism A 1998 SCSMEX case GMS IR GMS IR ? ? JMA- JMA -sfc sfc ? ? (T.C.Chen, Personal Com.)

3. Genesis: Diurnal variation 3. Genesis: Diurnal variation → Afternoon/Evening 6 Z, 12 Z Genesis location/timing of rainstorm Genesis location/timing of rainstorm → Midnight/Morning 0 Z, 18 Z (T.C.Chen, Personal Com.)

Diurnal Cycle: Local time of maximum precipitation Satellite ‘Observations’ Model Simulation (Lau et al. 2007)

Can GCM simulate the timing of diurnal cycle? • 20km AGCM captures spatial distribution of diurnal rainfall peak time over both land and the ocean within a few hours • Few difference between 20km and 120km AGCMs (Arakawa & Kitoh)

New field observation plan New field observation plan • Asian Monsoon Year (AMY)-2008 in collaboration with MAHASRI Japan- JEPP, JAMSTEC/IORGC China- 973AIPO India- CTCZ Australia etc. - SPICE THORPEX-YOTC

Objective of AMY’ ’08 08 Objective of AMY • To improve Asian monsoon predictions, in particular, in intraseasonal and seasonal time scales To attain its goal…. • Clarify multi-scale interactions among diurnal, synoptic and intraseasonal variations of Asian monsoon • Clarify land surface processes related with Asian monsoon variability • Clarify the role of aerosol on Asian monsoon variability

MAHASRI and related Projects MAHASRI China AIPO Chinese Taipei EAMEX JEPP: Tibet India CTCZ India STORM JEPP: Thailand JAMSTEC/IORGC JEPP: Indochina : Palau JEPP: Maritime JEPP: Indian JEPP: Indian JEPP: Indian continent Continent Ocean Ocean Ocean JAMSTEC/IORGC: SE Asia AMY (Asian Monsoon Year) is planned from April 2008 to March 2009

Japan EOS Promotion Program (JEPP) Theme 2-1: Observation Network in Indian Ocean and Maritime Continent Japan Agency for Marine-Earth Science and Technology (JAMSTEC) 70° 80° 10° 0° -10° 70° 80° Maritime-Continent Radar Network Indian-Ocean Mooring Array M. D. Yamanaka (IORGC) K. Mizuno (IORGC) Radar Observation Data Analysis Buoy Observation Data Analysis H. Hashiguchi M. D. Yamanaka Y. Kuroda Y. Masumoto (KyotoU) (IORGC/KobeU) (IORGC/MARITEC) (IORGC/UTokyo) Y.Shibagaki (OsakaECU) T.Shimomai (ShimaneU) S. Mori, P.M. Wu, K. Ando (IORGC) H.Hase, I.Ueki M.K.Yamamoto(KyotoU) Hamada J.I., S. Ogino, Y.Yamaguchi,Y.Ishihara (IORGC) M.Kawashima, Y.Fujiyoshi K.Ichiyanagi, T.Sasaki K.Matsumoto (MARITEC) (Hokkaido U) (IORGC) R. Shirooka, M.Katsumata Y.Tachibana (IORGC/TokaiU) (IORGC)

Japan EOS Promotion Program (JEPP) Theme 2-2 by Prof. Ishikawa, Kyoto-U. Promotion of Integrated Observational Study of Energy and Water Circulation on and over the Tibetan Plateau Satellite Obs. Systems Data Integration, Visualization, Mining SOIL WATER(SSMI) HUMIDITY (AIRS) SURFACE FLUX (FY2C) and others Ground Based Obs. Systems 4-D Data Assimilation

Japan EOS Promotion Program (JEPP) Theme 2-2 by Prof. Matsumoto, U-Tokyo Development of rainfall observation system in Southeast Asia Objective: Develop rainfall observation system in order to understand water cycle and its variability by climatic changes in tropical Asian monsoon region over Indochina （ 1 ） Research on rainfall distribution （ 2 ） Research on flood prediction Rainfall observation by automatic rain Rainfall estimation using radar and gauges and development of real-time satellite observation and its data transmission system application to flood prediction Automatic rain gauge Networks Rainfall India, Bangladesh 36 estimation Thailand 18 by satellite Vietnam 33 observation IP Radar data + Raingauge data → Composite rainfall data Similar to Radar-AMeDAS system in Japan Flood prediction

18 N High Density Rain Gauges １ High Density Rain Gauges ２ Automatic rain gauges in Indochina

インド亜大陸北東部における降水量の観測

Mae Wang basin in Chiang Mai (basin area : 600 km 2 ) Site description (Oki JEPP)

Instrumentation : Tel-super site W ind Speed & 2 .7 m Direction Air Tem perature & Hum idity 2 .0 m Short & long-w ave radiation 1 .0 m Air pressure in Data logger Rain Fall NO.1 box -5 cm -1 0 cm -2 0 cm River W ater Level -4 0 cm : Soil Tem perature Making well at NO.4 Ground W ater : Soil Moisture Level (Oki JEPP)

V. International Collaboration International Collaboration V. Facilities Facilities (T.C.Chen, Personal Com.)

Time Schedule in 2007(1) Time Schedule in 2007(1) • Jan. 8/10 :The 1-st MAHASRI/AMY Workshop: at Tokyo, Japan • Jan. 22-25:GEWEX-SSG at Hawaii, USA. • Feb. 19-22:CLIVAR-AMMP at Hawaii, USA. • Mar. 22-24: WMO/CAS WG Meeting on Tropical Meteorology Research at Guangzhou, China • Mar. 26-30: 28th session of the WCRP-JSC at Zanzibar, Tanzania • Apr. 23-25: 2008 Asian Monsoon Year (AMY08) International Workshop at Beijing, China

Time Schedule in 2007 (2) Time Schedule in 2007 (2) • Jun. 11-12:PSA Meteorology and Atmospheric Sciences Scientific Committee Meeting at Taipei • Jun. 13-17:Pacific Science Congress XXI (PSC21) at Okinawa, Japan • Jul. 2-13: IUGG XXIV 2007 Session JMS011 on Monsoon system at Perugia, Italy • Jul. 30-Aug. 4: The 4 th AOGS 2007 Session AS07 GEOSS, CEOP and MAHASRI at Bangkok, Thailand • Aug. 9-13 : MAIRS/CEOP Workshop on semi-arid region at Lanzhou, China • Sept. 3-7: CEOP, MAHASRI/AMY meeting in Indonesia

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