Description
An ICTP Virtual Meeting

This workshop will focus on observational and modelling studies of the Indian Ocean climate and its variability and telconnections to other regions across sub-seasonal through multi-decadal time scales.
 
The Indian Ocean hosts two important modes of interannual variability: the Indian Ocean Basin Mode and the Indian Ocean Dipole. Both modes have two-way interactions with ENSO, but they may also exist independently. Through their influence on rainfall anomalies, they have important teleconnections to other tropical and extratropical regions.  At sub-seasonal scales, organized convection over the Indian Ocean occurs during the early phases of the MJO mode, producing global teleconnections. ENSO teleconnections to the Indian Ocean also change on sub-seasonal timescales. At decadal scales, the Indian Ocean shows important variability associated with a strong warming trend, which affects global decadal variability and regional climate change. Recent findings on these and related topics will be discussed in invited presentations, panel discussions and breakout groups, organized in sessions covering themes common to different time scales.  

Topics:
  • Observations and diagnostics of oceanic and atmospheric variability in the Indian Ocean basin
  • Tropical and extratropical teleconnections from and into the Indian Ocean at intra-seasonal to decadal scales: similarity and differences across time scales
  • Simulation of Indian Ocean variability and its teleconnections in climate models, and predictability arising from Indian Ocean teleconnections
 
Speakers include:
K. ASHOK, University of Hyderabad, India
M.A. BALMASEDA, ECMWF, UK
W. HAN, University of Colorado, USA
S. HARDIMAN, Met Office, UK
S. HENDERSON, University of Wisconsin, USA
H. HENDON, Bureau of Meteorology, Australia
S. HU, Columbia University, USA
I.-S. KANG, Second Institute of Oceanography, China
R.M. KOLL, IITM, India
P. KUSHNER, University of Toronto, Canada
C. UMMENHOFER, WHOI, USA
F. VITART, ECMWF, UK
J. WANG, Stony Brook University, USA
T. WOOLLINGS, University of Oxford, UK
P. YADAV, ETH Zurich, Switzerland
L. ZHANG, University of Colorado, USA
 
Registration: There is no registration fee.
 
Go to day
  • Monday, 15 March 2021
    • 09:30 - 13:30 Observations and diagnostics of Indian Ocean variability
      • 09:30 Welcome Remarks 10'
        Speakers: Fred KUCHARSKI (ICTP), Franco MOLTENI (ECMWF, UK)
        Material: Video
      • 09:40 Understanding the role of the Indian Ocean in climate variability: an ocean renalyses perpective 45'
        Speaker: Magdalena Alonso BALMASEDA (ECMWF, UK)
        Material: Abstract Video
      • 10:25 A review of Indian Ocean decadal variability 20'
        Speaker: Weiqing HAN (University of Colorado, USA)
        Material: Video
      • 10:45 Southern Ocean as predictor for the IOD 20'
        Speaker: Karumuri ASHOK (University of Hyderabad, India)
      • 11:05 Break 15'
      • 11:20 Multi-decadal modulations of the Indian Ocean-ENSO-Atlantic relationship: Implications to the Arabian climate 20'
        Speaker: In-Sik KANG (Second Institute of Oceanography, China)
        Material: Video
      • 11:40 Impacts of multi-decadal Indo-Pacific variability on the Indian Ocean Dipole and regional hydroclimate 20'
        Speaker: Caroline UMMENHOFER (WHOI, USA)
        Material: Video
      • 12:00 Indian Ocean warming as a driver of the North Atlantic warming hole 20'
        Speaker: Shineng HU (Columbia University, USA)
        Material: Video
      • 12:20 Lunch Break 1h10'
    • 13:30 - 14:30
      • 13:30 Panel discussion 1h0'
        Chair: Martin HOERLING (NOAA, USA)
        Material: Video
    • 14:30 - 17:00
  • Tuesday, 16 March 2021
    • 09:30 - 13:30 Teleconnections from and into the Indian Ocean
      • 09:30 Welcome/Intro 10'
        Speakers: Fred KUCHARSKI (ICTP), Franco MOLTENI (ECMWF, UK)
      • 09:40 What determines the characteristics of MJO teleconnections across timescales 45'
        Speaker: Stephanie HENDERSON (University of Wisconsin, USA)
        Material: Video
      • 10:25 Indian Ocean SST response to aerosols and their impact on Sahel rainfall 20'
        Speaker: Paul KUSHNER (University of Toronto, Canada)
        Material: Video
      • 10:45 PNA-like MJO teleconnections: metrics, dynamical processes, and future change 20'
        Speaker: Jiabao WANG (Stony Brook University, USA)
        Material: Video
      • 11:05 Break 15'
      • 11:20 Sensitivity of the North Atlantic response to tropical SST anomalies 20'
        Speaker: Tim WOOLLINGS (University of Oxford, UK)
        Material: Video
      • 11:40 The Euro-Atlantic circulation response to fast and slow MJO episodes 20'
        Speaker: Priyanka YADAV (ETH Zurich, Switzerland)
        Material: Video
      • 12:00 Indo-Pacific warming and its impacts on the MJO and global rainfall patterns 20'
        Speaker: Roxy Mathew KOLL (IITM, India)
        Material: Slides Video
      • 12:20 Lunch Break 1h10'
    • 13:30 - 14:30
      • 13:30 Panel discussion 1h0'
        Chair: Cristina STAN (George Mason University, USA)
        Material: Video
    • 14:30 - 17:00
  • Wednesday, 17 March 2021
    • 09:30 - 13:30 Modelling aspects and predictability
      • 09:30 Welcome/Intro 10'
        Speakers: Fred KUCHARSKI (ICTP), Franco MOLTENI (ECMWF, UK)
      • 09:40 Simulation and prediction of Indian Ocean intraseasonal-seasonal variability 45'
        Speaker: Harry HENDON (Bureau of Meteorology, Australia)
        Material: Video
      • 10:25 MJO teleconnections in operational sub-seasonal forecasts 20'
        Speaker: Frederic VITART (ECMWF, UK)
        Material: Video
      • 10:45 Predictability of European winter 2019/20: Indian Ocean dipole impacts on the NAO 20'
        Speaker: Steven HARDIMAN (Met Office, UK)
        Material: Video
      • 11:05 Break 15'
      • 11:20 Indian Ocean warming trend reduces Pacific warming response to anthropogenic greenhouse gases: an interbasin thermostat mechanism 20'
        Speaker: Lei ZHANG (University of Colorado, USA)
        Material: Video
      • 11:40 Modelling the Indian Ocean contribution to the early-winter North Atlantic response to ENSO 20'
        Speaker: Muhammad Adnan ABID (ICTP)
        Material: Video
      • 12:00 The internal and ENSO-forced modes of the Indian Ocean sea surface temperature 20'
        Speaker: Ruibin DING (Indian Ocean Operational Oceanography Research Center)
        Material: Video
      • 12:20 Lunch Break 1h10'
    • 13:30 - 14:30
      • 13:30 Panel discussion 1h0'
        Chair: Franco MOLTENI (ECMWF, UK)
        Material: Video
    • 14:30 - 17:00