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Demonstration/Applications Including Impact of Observations on Models

Demonstration/Applications Including Impact of Observations on Models. Observing System Experiments (altimetry, SST, Argo) Case Study for Forecast Validation Pelagic Fisheries and Ecosystems : Habitat Prediction for Southern Bluefin Tuna Spatial Management. (1) Observing System Experiments.

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Demonstration/Applications Including Impact of Observations on Models

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  1. Demonstration/Applications Including Impact of Observations on Models • Observing System Experiments (altimetry, SST, Argo) • Case Study for Forecast Validation • Pelagic Fisheries and Ecosystems: Habitat Prediction for Southern Bluefin Tuna Spatial Management Oke and Schiller (2007), submitted to GRL

  2. (1) Observing System Experiments Bluelink Reanalysis/forecast system • OFAM (MOM4.0d, /10o res around Australia) • BODAS (EnOI, 72 member ensemble with localisation) Systematically with-hold each observation type from a 6-month Reanalysis (December 2005 – May 2006). Assimilation experiments assimilate every 7 days Oke and Schiller (2007), submitted to GRL

  3. (1) Observing System Experiments:RMS residuals • Impact on SST • With-holding altimetry or Argo has minimal impact on reanalysed SST (panels c & d). • SST critical in shallow seas and wide shelves • Impact on sea-level anomalies • Assimilation of Argo and SST reduces SLA residuals considerably (panel a and c); but doesn’t resolve mesoscale. Oke and Schiller (2007), submitted to GRL

  4. (1) Observing System Experiments:RMS residuals • Impact on T(z) and S(z) • Argo is the only component of the GOOS to adequately constrain salinity • SST has a positive impact on T(z) near the surface Area-averaged RMS residuals between observed and modelled SLA (cm), coastal SLA (cSLA, cm) and all T and S profiles over the top 500 m. Oke and Schiller (2007), submitted to GRL

  5. (2) Case Study for Forecast Validation: Brassington and Summons Oke and Schiller (2007), submitted to GRL

  6. (2) Case Study for Forecast Validation: Brassington and Summons Oke and Schiller (2007), submitted to GRL

  7. (3) Dynamic Spatial Strategies Southern bluefin tuna management Habitat preferences Habitat prediction + 3D ocean info Management decision Oke and Schiller (2007), submitted to GRL Hobday and Hartmann (2006)

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