Topic: Coupled Data Assimilation II

Thursday, February 13, 2025 from 15-17 UTC

Coupled Data Assimilation

Organisers and Conveners:
Clara Draper (NOAA, US),
Philip Browne (ECMWF, UK), 
Qi Tang (University of Neuchâtel/University of Basel, Switzerland),
Philipp Griewank (University of Vienna, Austria),
Nora Schenk (DWD, Germany)

Coupled data assimilation, spanning weakly and strongly coupled methods, is critical for improving predictions across interconnected Earth system components. We invite contributions on theoretical and applied aspects of coupled data assimilation in systems integrating model components such as atmosphere, ocean, sea ice, land, and hydrology, with a focus on how coupling improves model accuracy and captures system interactions in global, regional, and idealized contexts.

Program / Abstracts (PDF download)

Presentations:

• (30min invited talk + 5min Q&A)
• Treating different timescales in weakly-coupled variational data assimilation
  Amos S. Lawless, Nancy K. Nichols
  
  
• (17min contributed talks + 3min Q&A each)
• Estimating background errors crossed covariances for an ocean-atmosphere coupled EDA
  Argan Purcell, Pierre Brousseau, Loïk Berre, Sylvie Malardel
• Pre-operational performance of NCMRWF Coupled NWP system
  Sumit Kumar, Imranali M. Momin, K. Niranjan Kumar, Sukhwinder Kaur, Sushant Kumar, John P. George, V. S. Prasad
• Outer loop coupled data assimilation for the land surface
  Christoph Herbert, Peter Weston, Patricia de Rosnay, Sébastien Massart

Time Zones:
15 – 17 UTC
Europe:           03 – 05 pm GMT (London)     | 04 – 06 pm CET (Berlin)
Asia/Australia: 11 – 01 am CST (Shanghai)  | 00 – 02 am JST (Tokyo)      | 02 – 04 am AEDT (Sydney)
Americas:        07 – 09 am PST (San Fran.) | 08 – 10 am MST (Denver)   | 10 – 12 am EST (New York)

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