Operation Plan and Current Status of CINDY2011 Kunio Yoneyama and Masaki Katsumata (JAMSTEC) 1.Basic Idea 2.Observation Network 3.Current Status DYNAMO Planning Workshop at NOAA/ESRL Boulder, CO, April 13-14, 2009 CINDY2011 : Cooperative Indian Ocean experiment on isv in the Year 2011 Purpose : Study on Intraseasonal Variability in the Indian Ocean with focus on the initiation of convection in Madden-Julian Oscillation.

Scientific Background – Period & Location Preference of MJO-convection Occurrence Period : November – January Location : 80E – 100E (Above is convective center. Western edge of convective ensemble is often found around 60E) MISMO

Observation Plan - Basic Idea Basic Strategy : Based on the experience of MISMO, the key of the experiment is to construct a long-time (over intraseasonal period) and wider areal observation network with ships and land-based sites in collaboration with RAMA buoy array. * It should be appropriate to evaluate contribution from Rossby wave. * Multi-national effort (Japan, USA, Australia, India, Seychelles, Indonesia, France, … ) * Numerical group should be involved. (ex. NICAM) Period : Oct – Jan Location : On and around the central equatorial Indian Ocean

Ship (Japan, India, USA, Australia, etc.) RAMA Surface mooring (existing/planned as of Dec. 2008) Land-based sounding site (routine/possible enhanced sites) Proposed Network for CINDY2011 HARIMAU Seychelles

Tentative Schedule of R/V Mirai Oct. 10 leave Japan Oct. 20 call at Singapore Oct. 25 arrive Observation point Nov. ?? call at Maldives (1-2 days) Dec. 15 leave Observation point Dec. 19 arrive Seychelles Dec. 20 leaveSeychelles for WOCE-type cruise Remarks. 1) Cruise consists of 2 legs (Singapore ~ Maldives, Maldives ~ Seychelles) 2) Flexibility with maximum 2 weeks shift (backward or forward) About 50 days on station

Observations on-board the R/V Mirai Expected Measurement Systems to be used : C-band Doppler radar Radiosonde ( every 3h to resolve diurnal cycle ) Surface Meteorology including Solar radiation and Turbulent Flux Skin Sea Surface Temperature measurement CTD ( every 3 or 6h ) with water sampling ADCP Vertical-pointing 95-GHz Cloud radar LIDAR Ozone-sonde Videosonde Microstructure Profiler Maintenance of RAMA buoys (2 ADCP and 2 Surface buoys ?)

Relevant Proposal in JAMSTEC Repeat Hydrography along WHP – I02 (8 º S) and I10 (~111 º E) PI : Dr. Akihiko Murata /JAMSTEC Period : 55 days in Dec – Feb (after CINDY cruise) Measurements : 217 CTD stations from Surface to the Bottom Temp., Sal, DO, Nutrients, Total dissolved inorganic carbon, Total Alkalinity, pH, CFCs, 14C, 13C, etc. Data will be submitted to CLIVAR & Carbon Hydrographic Data Office

Participation from India and Australia India * R/V Sagar Kanya (India) - Committed - 1) led by S. P. Kumar (NIO) Biogeochemical cruise (CTD at fixed site) 30 days in IO They will look for the possibility of Radiosonde observation. 2) led by VSN Murty (NIO) RAMA cruise (~30 days) Australia * R/V Southern Surveyor (Australia) - Will be Proposed - led by E. Schulz, M. Wheeler, H. Hendon (CAWCR) From Colombo, Sri Lanka to Christmas Island max 25 days on station Air-sea flux + Radiosonde sounding

HARIMAU (Hydrometeorological ARray for ISV-Monsoon Automonitoring) Doppler radar Wind Profiler Doppler radar + Auto Weather Station Wind Profiler + Auto Weather Station

Radiosonde Observation at Seychelles Seychelles National Weather Services will conduct radiosonde sounding twice daily during the campaign (4 months) with intensive 6-hourly launch for designated 1 month (i.e., late October - early December).

Misc. Web Pages CINDYhttp:// MISMOhttp:// Data Policy Encourage participants to open QCed data within 1-year from the end of campaign (~ Feb. 2013) Symposium or Workshop in year from CINDY 20 years from TOGA-COARE

Eastward and Westward Propagating Signals Velocity Potential + TBB VorticityPWV Anomaly

Impact of MISMO Radiosonde Data onto Reanalysis Data set Using reanalysis data called ALERA (AFES-LETKF Experimental Reanalysis) which uses ensemble Kalman filter assimilation technique, we examined the impact of MISMO radiosonde data onto objective reanalysis.

Temporal Buoy deployment (not fixed yet) 80.5E Process Study by NOAA/PMEL & NIO m-TRITON ?ADCP 79E ATLASADCP 82E or ADCP mooring ( 1 yr ) Surface Buoy (only IOP)

Scientific Background – Location MJO-associated OLR variance (in W 2 m -4 ) during the OND season for , computed using multiple linear regression of daily OLR data with the two-component (RMM1,RMM2) Wheeler-Hendon MJO index. Courtesy M. Wheeler

SST Measurement by ISAR and Sea-snake Borrowed from Prof. Minnett / U. of Miami Operated by Dr. Reynolds / RMR Co. ISAR “Sea-snake” Floating thermistor

Surface Meteorological Parameters at 0, 80.5E from Oct. 27 to Nov. 25

Example ： Diurnal Cycle

Mie-scattering LDIAR by NIES Specification : Laser: Nd:YAG Wavelength: 532 nm (with depolarization measurement), 1064 nm Laser power: 50 mJ/pulse Pulse repetition: 10 Hz Detector: PMT(532) / APD(1064) Digitizer: 12 bit ADC Temporal resolution: 10 sec Vertical resolution: 6 m Range: km

95-GHz Cloud Profiling Radar by Chiba Univ. and Tohoku Univ. Specification : FM-CW Frequency : GHz Power: 0.5W (27 dBm) Vertical resolution: 15 m Maximum Range: 20 km

Video-sonde Observation by Yamaguchi Univ.