SPLINTER SESSION C (Tuesday, 7 May, 11:00 – 12:30)

Please click on a “splinter title to jump to the relevant talk and presenter info

Theme 2 – Splinter 3
Theme 3 – Splinter 3
Theme 4 – Splinter 1
Theme 5 – Splinter 3
Splinter title: Capturing global/basin scale ocean variations through observation and data assimilation Biogeochemical and ecological applications Variational, ensemble and hybrid methods in ocean data assimilation I Global and Regional prediction Systems I
Room: B3 507 501 503
Length of session: 90 min 90 min 90 min 90 min
No of talks: 6 6 6 6
Talk length: 12 min + 3 min Q&A 12 min + 3 min Q&A 12 min + 3 min Q&A 12 min + 3 min Q&A
Session chair(s): Yosuke Fujii and Katy Hill Youyu Lu Pierre De Mey-Frémaux and Lars Nerger Ana Aguiar and Greg Smith
Related theme Theme 2: Observations for Ocean Prediction Theme 3: Numerical modelling Theme 4: Data Assimilation
Theme 5: Ocean Prediction System and Services

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2.3: Capturing global/basin scale ocean variations through observation and data assimilation

Theme 2 – Splinter 3 Abstracts of session 2.3 Chaired by Yosuke Fujii and Katy Hill

This splinter session focuses on ocean observing systems targetting oceanic phenomena which affect global/basin scale oceanic/climate variations, such as El Ninos and the western boundary current systems. Results of evaluating the impacts of those observing systems in ocean predictions and efforts on seeking the optimal design of those observing systems are also introduced.

11:00-11:15      Room B3
The 2018-19 El Nino
Michael McPhaden*

11:15-11:30     Room B3
10-year Efforts of Evaluating the Tropical Pacific Observing Systems using ocean data assimilation and prediction systems
Yosuke Fujii*, Yan Xue, Florent Gasparin, Oscar Alves

11:30-11:45     Room B3
Impact of Satellite Sea Surface Salinity Observations on ENSO Predictions from the GMAO Seasonal Forecast System
Eric Hackert*, Robin Kovach, Jelena Marshak, Anna Borovikov, Andrea Molod, Guillaume Vernieres

11:45-12:00     Room B3
The PIRATA array in the tropical Atlantic: Enhancements and perspectives in support of operational oceanography
Fabrice Hernandez*, Moacyr Araujo, Bernard Bourles, Peter Brandt, Leticia Cotrim da Cunha, Gregory Foltz, Hervé Giordani, Nathalie Lefevre, Jérôme Llido, Michael Mc Phaden, Paulo Nobre, Christina Patricola, Regina
Rodrigues, Adrienne Sutton

12:00-12:15     Room B3
Towards robust estimations of the deep ocean variability with deep Argo
Florent Gasparin*, Matthieu Hamon, Elisabeth Rémy, Pierre-Yves Le Traon

12:15-12:30     Room B3
Observing systems for oceanic boundaries
Robert Todd*


3.3: Biogeochemical and ecological applications

Theme 3 – Splinter 3 Abstracts of session 3.3 Chaired by Youyu Lu

The overarching goal of the Theme 3 session is to bring forward the latest developments in ocean modeling and forecasting from a combined physical and biogeochemical perspective. The first two splinter sessions emphasize ocean, atmosphere, and ice forecasts and nowcasts. The third session focuses on biogeochemical and ecological applications. The fourth deals with the latest advances in sea ice modeling and prediction. Finally, the last session emphasizes the small scales.

11:00-11:15     Room 507
Impact of Tides and the NAO on the Bloom Dynamics and Ventilation in the Labrador Sea
Laura Castro de la Guardia*, Paul Myers

11:15-11:30     Room 507
Modelling Phytoplankton Dynamics in a Turbid River Plume
Elise Olson*, Susan Allen, Doug Latornell

11:30-11:45     Room 507
The Moana Project: Seafood sector support for ocean data collection to improve ocean prediction in New Zealand
Moninya Roughan*

11:45-12:00     Room 507
Model-data assessment of Scotian Shelf carbon dynamics: A spatially varied and biologically active system
Krysten Rutherford*, Katja Fennel, Dariia Atamanchuk, Douglas Wallace, Helmuth Thomas, Ka Ki Kam

12:00-12:15     Room 507
Tradeoffs between satellite surface and Argo profile observations when optimizing a biogeochemical model for the Gulf of Mexico
Bin Wang*, Katja Fennel, Liuqian Yu, Christopher Gordon

12:15-12:30     Room 507
A model assessment of the effects of Beaufort Gyre circulation changes on nutrient pathways and transport times in the Arctic Ocean (not publicly available, please contact author)
Fabian Grosse*, Katja Fennel, Timothée Bourgeois, Benjamin Richaud, Xianmin Hu, Youyu Lu

4.1: Variational, ensemble and hybrid methods in ocean data assimilation I

Theme 4 – Splinter 1
Abstracts of session 4.1 Chaired by Pierre de Mey-Fremaux and Lars Nerger

Data assimilation methods can be broadly split into two types: variational and ensemble. Recently aspects of the two approaches have been combined in hybrid ensemble/variational methods. These first two splinter sessions cover applications of these various approaches in ocean data assimilation systems.

11:00-11:15     Room 501
Introduction to the Data Assimilation splinter sessions
Matthew Martin and Pierre De Mey-Frémaux

11:15- 11:30    Room 501
Development of regional high-resolution assimilation systems based on four-dimensional variational
Norihisa Usui*, Nariaki Hirose, Yosuke Fujii, Takahiro Toyoda, Nadao Kohno, Tsurane Kuragano

11:30-11:45     Room 501
Hindcasting the subsurface oil plume after the Deepwater Horizon disaster in the Gulf of Mexico
Liuqian Yu, Katja Fennel*, Bin Wang, Arnaud Laurent, Keith Thompson, Lynn Shay

11:45-12:00     Room 501
A Multi-Scale Approach to High Resolution Observations within a 4DVAR Analysis System
Matthew Carrier*, John Osborne, Hans Ngodock, Scott Smith, Innocent Souopgui, Joseph D’Addezio

12:00-12:15     Room 501
Two simple ways for creating model-independent biogeochemical tangent linear and adjoint code
Jann Paul Mattern*, Christopher Edwards

12:15-12:30     Room 501
A method for estimating the analysis error covariance with 4DVar
Hans Ngodock*, Matthew Carrier, Scott Smith, Innocent Souopgui


5.3: Global and Regional Prediction Systems I

Theme 5 – Splinter 3 Abstracts of session 5.3 Chaired by Ana Aguiar and Greg Smith

This is one of three consecutive sessions showcasing global and regional prediction systems being developed or run operationally.  This will include system descriptions, latest developments in the use of observations, and the practical considerations of running increasingly complicated operational systems so as to produce model outputs which are useful to users in a timely manner.  The first of these sessions has an emphasis on coupled atmosphere-ocean-ice modelling systems and global ocean-only forecasting systems.

11:00-11:15     Room 503
Evaluating the extended range ocean forecast in the Navy Earth System Model
James Richman*, Jay Shriver, E. Joseph Metzger, James Dykes, Patrick Hogan, Luis Zamudio

11:15-11:30     Room 503
Ensemble Ocean and Sea Ice Prediction in GEPS
Andrew Peterson*, Greg Smith, Juan Sebastian Fontecilla, Greg Smith, Hai Lin, Ryan Muncaster, Normand Gagnon

11:30-11:45     Room 503
The current Copernicus Marine Service global ocean monitoring and forecasting real-time system and the updates planned for the future system
Jean-Michel Lellouche*, Eric Greiner, Olivier Le Galloudec, Gilles Garric, Romain Bourdalle-Badie, Charly Regnier, Marie Drevillon, Mounir Benkiran, Yann Drillet, Pierre-Yves Le Traon

11:45-12:00     Room 503
Operational Ocean Forecast Systems at NWS/NCEP: Current status and Future Plans
Avichal Mehra* and Arun Chawla

12:00-12:15     Room 503
Recent developments to the Met Office operational global ocean forecast system FOAM
Ana Aguiar*, Chris Harris, Matthew Martin, Martin Price

12:15-12:30     Room 503
Updates to the coupled ocean-atmosphere forecasting system at the Met Office
Jonah Roberts-Jones*