GODAE is sponsored by
The CSS projects
Japan Seas
P6 - Comprehensive nowcast/forecast system for the Japan coast (MOVE/MRI.COM-JC)
Domain
Coastal region around Japan
Objectives
Type:
Real-time monitoring and prediction, reanalysis
Operational objectives:
Coastal sea-level (tides and storm surges), surface waves, currents, water temperature
Customers:
JMA, prefectural offices, ship navigation, marine leisure
Funding aspect:
MRI
Downscaling strategy
Modelling strategy: Horizontal resolution: a few km; ocean model: MRI.COM (Ishikawa et al. 2005)
Forcings: Nested within 10km resolution nowcast/forecast system operationally run by JMA (MOVE/MRI.COM-WNP) surface atmospheric forcings from JMA operational nowcast/forecast system
Variables estimated: Sea-level, wave height, currents, water temperature, salinity
Prediction range: About one week
| Why does this project need large-scale estimates? | Because the state of the strong currents such as the Kuroshio, the Oyashio, the Tsushima current, the Tsugaru current, the Soya current are important for the prediction of the oceanic environments around Japan. These currents have large-scale features. |
| What for? | Mainly for the JMA's warning system around the coastal region (abnormal tides, wind waves, storm surges), possibly for fisheries, ship navigation, marine leisure.... |
| Boundary conditions, more sophisticated downscaling schemes, etc., on/off-line? | Medium resolution model between 10km and 1km models, two-way nesting, coupled with atmospheric forecast models (especially with the typhoon model for storm surges) |
| What particular GODAE estimates does this project use, how often, etc.? | JMA's Japan GODAE product (temperature, salinity, velocity and SSH from JMA operational ocean data assimilation system MOVE/MRI.COM-WNP). Jason and ENVISAT altimetry data. |
| Through which Modelling/Assimilation Center? | JMA (Japan GODAE-server) |
| Does the project have a verification/validation strategy which can help assess the impact of large-scale estimates? | Monitoring sea-level change in an interannual time scale is one of our main objectives. Verification/validation will be done according to the GODAE North Pacific Metrics (Kamachi and Minato, 2001) which will be revised for coastal regions. |
Project status
Planning
References
Ishikawa, I., H. Tsujino, M. Hirabara, H. Nakano, T. Yasuda & H. Ishizaki (2005): Meteorological Research Institute Community Ocean Model (MRI.COM) Manual.
Kamachi, M. & S. Minato (2001): Pacific Inter-Comparison (Internal Metrics), Handout in the International Workshop on GODAE with Focus on the Pacific, IPRC, University of Hawaii, 18pp.
(Last Updated: 17-01-2008)