Cooperative Indian Ocean experiment on intraseasonal variability in the Year 2011 / Dynamics of the Madden-Julian Oscillation

Goal : collect in-situ observations to advance our understanding of MJO initiation process and to improve MJO prediction and simulation.

Key objectives: to document and understand 1) the evolution of heating and moisture profiles associated with the MJO, 2) convective, meso-scale, and synoptic evolution through the life cycle of the MJO, 3) air-sea interaction associated with the MJO

Special remarks : 1)  multi-national participation (Australia, India, Indonesia, Japan, Kenya, Maldives, France,

Seychelles, UK, US) 2)  observation-modeling synergy (forecast, simulation, reanalysis) 3)  endorsement from CLIVAR-SSG.

CINDY2011 / DYNAMO

Cooperative Indian Ocean Experiment on Intraseasonal Variability in Year 2011 (CINDY2011) and

Dynamics of the MJO (DYNAMO) Field Campaign

October 1, 2011 – March 31, 2012

Land-based operational sounding site

R/V Mirai R/V Ron Brown R/V Southern Surveyor

R/V Sagar Kanya

Land-based enhanced sounding site

R/V R. Revelle

10S

Eq

65E 75E 85E

Gan

Diego Garcia

NE

SE

RAMA

DYNAMO Sounding-Radar Network �(4 soundings per day for IOP; 8 per day for SOP)

Gan

Diego Garcia

10N

10S

Eq

65E 75E 85E

Gan

Diego Garcia

JP/US

US/IND/AUS

NASA TOGA Radar

NCAR S-PolKa Radar Texas A&M SMART Radar

ARM AMF2

MIRAI C-band Radar

NCAR ISS

DYNAMO Air-Sea Interaction Network �

Gan

Diego Garcia

10N

10S

Eq

65E 75E 85E

Gan

Diego Garcia

JP/US

US/IND/AUS

Sea-glider

Long-Term Monitoring (LTM): IndOOS, RAMA

Extended Observing Period (EOP): island-based radar (SMART-R) and radiation package (AMF2), surface/upper-ocean moorings, drifters, enhanced RAMA moorings

September October November December January

2012

February

Intensive Observing Period (IOP): sounding-radar array, ship-based measurement of air-sea fluxes, atmospheric boundary layer and upper-ocean mixing/turbulence profiles, aerosol

DYNAMO/CINDY2011 Observation Periods

SOP: enhanced soundings

2011

5

AMIEHARIMAU

PAC3E‐SA/7SEASCINDY2011

CINDY2011/DYNAMO (October 2011 – March 2012): atmospheric heating and moistening profiles, cloud and precipitation, air-sea interaction, aerosol AMIE (October 2011 – March 2012): radiation, cloud, atmospheric profiles HARIMAU (2004 - ): cloud, atmospheric boundary layer PAC3E-SA/7SEAS (2011): aerosol, convection

Programmatic Synergy

Real Time Monitoring And Forecasts: CPC will develop a briefing page to house relevant monitoring products for the field campaign.

Provide and interpret MJO index real time model forecasts for the field campaign and provide an assessment for future evolution of the MJO during Week 2-3.

During the field campaign, high resolution model runs will be performed by using the Global Forecast System and Climate Forecast System.

Simulation : CFS ensemble hindcast

Reanalysis : After the field campaign, NCEP / EMC will conduct a reanalysis utilizing DYNAMO data over the experiment domain and period.

Real Time Forecast: 10 day forecast available for CINDY2011/DYNAMO for the field campaign period (October 2011 – March 2012)?

Reanalysis : Post-field reanalysis?

Global AGCMs, OGCMs, CGCMs Tropical channel model (nested to cloud resolving resolution) Coupled regional meso-scale model Regional cloud resolving modeling Single column atmospheric model and ocean mixing-layer model

Challenges: •  model-observation synergy: applications of field observations to modeling activities •  more engagement of modeling centers •  entraining existing modeling activities