1. Ocean circulation modelling at regional scales within the ESEOO Project framework Sotillo M.G., Alvaréz E., Vizoso G., Ferrer I., Torres López S., Carracedo P. and Ruiz-Villareal M. VERTIMAR-2005 MeteoGalicia

2. Introduction  ESEOO Project. Its objectives  Numerical Modelling at ESEOO Project  Regional ESEOO Domains  Systems and preliminary results  Conclusions and future perspectives VERTIMAR-2005. Vigo, Spain, 13-16 July 2005

3. What is ESEOO?  ESEOO (Establecimiento Español de un Sistema de Oceanografía Operacional) is a 3-yr Project funded by Ministerio de Educacion y ciencia.  Funds: 865.000 €  Project launched in January 2004  Participants: 14 Spanish and 5 non-Spanish groups Numerical Modelling at ESEOO Proyect  Prestige crisis highlighted the existence of gaps in some aspects of the Spanish Operational Oceanography (OO):  Neither currents nor oil spill operational forecasting systems  Main objective: Generation of a Spanish Operational System to provide environmental information to face emergency situations at sea  Fill observed gaps and boost OO in Spain VERTIMAR-2005. Vigo, Spain, 13-16 July 2005

4. Numerical Modelling at ESEOO  ESEOO is focus mainly on coastal areas.  Downscaling approach (from global to coastal)  Structure of a regional application: VERTIMAR-2005. Vigo, Spain, 13-16 July 2005 IC: Global Systems BC: Global Systems Numerical Model Atmospheric forcing Tidal forcing River Fresh water inputs OUTPUTS: Currents, SSH, temp & salinity  ESEOO is focus mainly on coastal areas.  Downscaling approach (from global to coastal) Global Systems Regional ESEOO Applications Pollutant and ESEOO oil spill models Local ESEOO models

5. ESEOO DOMAINS & APPLICATONS VERTIMAR-2005. Vigo, Spain, 13-16 July 2005 ESEOAT ESEOMED ESEOCANESEOAT: PE,MeteoGalicia, IEO ESEOMED: IMEDEA,PE ESEOCAN: PE,ULPGC

6. PE Applications  PE will set up applications for the 3 ESEOO domains  3D baroclinic coastal-ocean model: POLCOMS (POL, UK)  Forcings:  Meteorological (10-m w, mslp, 2m-T,q,surf rad, cloud) => INM  Tidal => LEGOS/POC  Ocean (T,S, ssh, barotropic velocities) => FOAM / MERCATOR  Fresh river inputs => GRDC  ESEOAT 1-year Hindcast Run Prestige Year (09/02-09/03)  Horizontal resolution: 1/20º (4-5 km) / 34 S-levels / Hourly outputs  A preliminary 1-year test run already performed  Ongoing Validation / Set-up improvements / Sensitivity Tests VERTIMAR-2005. Vigo, Spain, 13-16 July 2005

7. PE Applications  Tidal, MSLP and 10-m wind forcing effects checked  T,S, and currents under validation (in-situ/satellite) VERTIMAR-2005. Vigo, Spain, 13-16 July 2005 SST(ºC) 09/09/02 SAL(PSU) 08/03/03 Surface currents (19/09/02)

8. ESEOAT Application  MeteoGalicia set up an application for the ESEOATdomain.  3D baroclinic hydrodynamic model: MOHID (IST-MARETEC)  Forcings:  Wind forcing (10-m w) => INM and ARPS  Heat Fluxes => INM and MM5  Tidal => FES95  Ocean (T,S, ssh, barotropic velocities) => Climatologic condition / MERCATOR  ESEOAT Application  Horizontal resolution: 1/20º (4-5 km) / 33 cartesians levels  A preliminary 2-month test run already performed  Ongoing thermohaline distribution and currents validation.  Further works:  Model intercomparison exercise in the ESEOAT domain: MetoGalicia MOHID & PE POLCOMS Systems. VERTIMAR-2005. Vigo, Spain, 13-16 July 2005 MeteoGalicia

9. ESEOAT Application VERTIMAR-2005. Vigo, Spain, 13-16 July 2005 MeteoGalicia TIDAL VALIDATION Tidal level average errors are less than 0.07 m and RMS are around 0.10 m Differences in M2 amplitude < 2% and in phase lags <7’ MOHID RUNS (CLIMATOLOGIC & WIND FORCING)

10. IEO Application  IEO will set up an application for the ESEOOAT domain  3D baroclinic coastal-ocean model: ROMS & ROMS-AGRIF  Forcings:  Meteorological (10-m w, mslp, 2m-T,q,surf rad, cloud) => NCEP/Quickscat & INM  Tidal => TPXO6.2  Ocean (T,S, ssh, barotropic velocities) => WOA2001/MERCATOR  Fresh river inputs => Real & Climatological  ESEOAT Application  A subdomain of ESEOAT already ran:  39N 45.5 N; -13W -6 W; 1/20º (4-5 km); 30 S-levels  Sep2002 - Dec2002  Whole ESEOAT reanalysis to be run at CESGA VERTIMAR-2005. Vigo, Spain, 13-16 July 2005

11. IEO Application VERTIMAR-2005. Vigo, Spain, 13-16 July 2005 Validation and model intercomparison strategy for the reanalysis period

12. IMEDEA Applications VERTIMAR-2005. Vigo, Spain, 13-16 July 2005 Two model-based applications implemented in the ESEOMED domain (  5 km resolution) nested to MFSTEP Forecasting system and global DieCAST DieCAST resolution 1/24º (approx. 4km) HOPS resolution 5km Surface salinitySurface currents and temperature Regional models

13. IMEDEA Applications VERTIMAR-2005. Vigo, Spain, 13-16 July 2005 Nesting techniques with different global and regional models: Regional HOPS nested with Global MFSTEP (one-way nesting) Regional HOPS nested with Global DieCAST (one-way nesting) Regional DieCAST nested with Global DieCAST (two-way nesting) Local HOPS nested with Regional HOPS (two-way nesting) Data Assimilation: CTD profiles assimilated into HOPS ( method used is optimal interpolation ) SST assimilated into HOPS CTD profiles assimilated into DieCAST Operational Exercise: Mediterraneo-2005 Current data from DieCAST run forced with MFSTEP

14. Conclusions & Future Actions  ESEOO Project is an initiative to boost Operational Oceanography in Spain.  Developement of ocean dynamic operational forecast systems to provide valuable information to face emergency situations at sea (i.e. oil spill accidents, drifting object tracking,...).  Spanish institutions and research groups such as PE, IMEDEA, Meteogalicia, IEO and ULPGC are co-operating to fulfill the above-referred objective.  Different applications in a pre-operational state have been already set-up allowing to:  Generate a f 1-year hindcast for the “Prestige” year  Provide useful information for the Mediterraneo-2005 exercise  Provide forcing data to other ESEOO groups working with oil spill models  However, there is still a lot of work to be done VERTIMAR-2005. Vigo, Spain, 13-16 July 2005