Towards an Operational Model for the Tagus Estuary Rodrigo Fernandes, Ramiro Neves, Frank Braunschweig, João Silva, Susana Nunes, Madalena Santos, Ângela Canas e João Nogueira Paulo Leitão, Henrique Coelho

Overview Tagus estuary Tagus estuary Motivation Motivation System Design System Design End user results End user results Present situation Present situation Conclusions/Future Work Conclusions/Future Work

Tagus estuary 2 million people M m Area = 320 km 2 Average river flow = 300 m 3 /s Catchment area = km 2

Motivation Monitoring programs (supported by SANEST, SIMTEJO – 2 private companies responsible for management of waste water from 1.5 million people); Monitoring programs (supported by SANEST, SIMTEJO – 2 private companies responsible for management of waste water from 1.5 million people); The Water Framework Directive; The Water Framework Directive; Validation in continuum of our numerical modeling system ( Validation in continuum of our numerical modeling system (

System Design Real-time modelling Atmospheric + Hydrodynamics Real-time field data Validation Databases Field Campaigns Results Publication (depending on target public)

MOHID System Structure Mohid Base 1 Process, IO and Function modules Executable Library Interprocess Communication Triangulator River Network Mohid Base 2 Grid and Atmosphere modules 0D Main Basin Delineator Digital Terrain Creator MOHID Water Mohid Base 3 Soil modules MOHID Soil MOHID Land Global Data, Water Quality, Sediment Quality, EnterData, HDF, Functions, Time, LUD, Triangulation, Time Series,... Horizontal Grid,Vertical Grid, Atmosphere, Advection Diffusion,... Soil, Soil Properties,...

Portuguese Coast (dx = 2 km) Discharges from rivers / WWTP’s Tagus estuary (dx = 300 m) Modelling Methodology (Nested Models) Atmospheric model –> Global tide solution FES95.2 Atmospheric forcing (MM5) Cascais (dx = 50 m) WWTP Discharge Nazaré – Setúbal (2D) -Hydrodynamics Tagus (2D) -Hydrodynamic -Water quality Carc. - P. Arcos (2D) -Hidrodynamics (grid 301 x 105) Tagus (3D-10 layers) -Hydrodynamics Guia (3D-10 layers) -Hydrodynamic Initial Dilution (Mohid Jet)+ Dispersion (Lagrangian) Carc. - P. Arcos (3D- layers)) -Hydrodynamics (grid 301 x 105)

Some results

Automatic stations network Cascais Carcavelos Acoustic Doppler Current Meter Profiler Automatic atmospheric station Buoys – automatic acquisition stations: -Velocities and pressure - Temperature, salinity -Clorofile, turbidity, oxygen, pH

Conclusions/Future Work The system started producing modeling results on a daily basis in March of 2003; The system started producing modeling results on a daily basis in March of 2003; The links between models, data acquisition systems, data bases and web applications are implemented; The links between models, data acquisition systems, data bases and web applications are implemented;

Conclusions/Future Work The system is working The system is working In the future it needs: In the future it needs: Implementation of data assimilation modulesImplementation of data assimilation modules Daily statistical analysis of the model accuracyDaily statistical analysis of the model accuracy To find other end users (ex: harbor)To find other end users (ex: harbor)