Topic: Ocean data assimilation

Thursday, 12 March 2026 from 15-17UTC

Organizers and Conveners: Qi Tang (University of Neuchâtel / University of Basel, Switzerland), Lars Nerger (AWI, Germany), Daniel Lea (MetOffice, UK)

Data assimilation into the ocean has advanced strongly over the recent years with also operational ocean forecasting becoming common practice. The sparseness of ocean observations, its dynamics, and the interaction with coupled components, like sea ice, marine biogeochemistry, coasts, atmosphere results in particular challenges. We invite contributions on DA into the ocean and its coupled components. 

Presentations:

• Data Assimilation in the NOAA US West Coast Ocean Forecast System (invited talk, 30’+5’)
  Alexander L. Kurapov, Parisa Heidary, Bahram Khazaei, Scott Durski
• On the choice of velocity variables for variational ocean data assimilation (15’+3’)
  Laura Risley, Amos Lawless, Matthew Martin, Anthony Weaver
• Near-Real-Time Satellite-Based Ocean Current Assimilation Using a Multi-Model Ensemble Kalman Filter (15’+3’)
  Shahbaz Baig, Waqas A. Qazi, Rafia Mumtaz
  
• Effects of Stochastic Parameterization in a Global Ocean Model on Ensemble-Based Data Assimilation (15’+3’)
  Kate Boden, Ian Grooms
  
• Hybrid Ensemble Variational Data Assimilation in a high resolution ocean model (15’+3’)
  Daniel Lea, Matthew Martin, Jennie Waters, Davi Carneiro, Martin Price

Abstracts/Program (PDF download)

Recordings

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:        08 – 10 am PST (San Fran.) | 09 – 11 am MST (Denver)   | 11 – 13 am EST (New York)

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