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Presentation of the tools developed (part 1)

Presentation of the tools developed (part 1). Presentation of the tools developed (part 1). How do numerical models work? -> Alejandro ORFILA , UIB-IMEDEA. What is ocean modelling ?. The ocean (like the atmosphere) is composed by a ( newtonian ) fluid that

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Presentation of the tools developed (part 1)

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  1. Presentation of the tools developed (part 1)

  2. Presentation of the tools developed (part 1) • How do numerical models work? • -> Alejandro ORFILA, UIB-IMEDEA

  3. What is ocean modelling? The ocean (like the atmosphere) is composed by a (newtonian) fluid that can be -quite well- studied using one some basic laws and a couple of principles…. - F=m·a - Conservation of mass, temperature (energy) Seems feasible…. BUT N-S equations are hyperbolic-type…..so weneed, to set up initialconditions And forcing, and assimilation….? DATA

  4. How models work? Time Integration DynamicalModel Basic Principles(1) System (Ocean/Atmosphere/.. Prediction (1) Tosca Project is indebted at this point to: Copernico, Archimedes, da Vinci, Torricelli, Pascal, Bernoulli, Newton, Lagrange, Euler, Navier, Stokes and some (not many) others. DATA And….N/S equations are nonlinear DATA Assimilation Exactly!!! ... Ourproblemdealswiththelack of DATA

  5. Let me borrow (stole) this (slightly modified) slide from A. Molcard... Model Radar Wave Component Local Authorities Drifter Atmospheric Component Oil spill/SAR Model Sampling Glider/in-situ Ocean circulation Component Assimilation SYSTEM Ocean modelling Ocean Observing System End Users + SSH, SST, etc… The TOSCA concept DATA

  6. The TOSCA concept I...Frommodellingtoobservation 1.Real Time Observing Systems (remote and in situ) 2. Asimilation 3. Numerical modelling DATOS YOBSERVACIONES MODELOS 4. Predictions Orfila et al, 2004 5. End users.

  7. The TOSCA concept II... FromEulertoLagrange Trajectories/paths • The Tosca Team loves Lagrangian description of things • Imagine that you track something that is moving…. Fields LAGRANGE EULER

  8. The TOSCA concept III: in 2013 Wave Component Atmospheric Forcing and Boundary Conditions Atmospheric Component Local System Ocean circulation Component TOSCA Modeling domains TOSCA System Oil spill/SAR Model TOSCA Modeling system

  9. The TOSCA concept IV: Example of implementation at WM Diffusion Atmospheric model HIRLAM (INM) Res.: 0.16º • Spill model • TOSCA C-drift Ocean Model ROMS-Balop Res.: 1/50º Wave model WAM

  10. The TOSCA concept V. C-drift An open tool (in the wide sense), web based,multi-platformthatprovidesthelocation of a spill in terms of areas of probability.

  11. 24h 48h

  12. Thanks for attending TOSCA Final Meeting!

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