ROMS/TOMS Tangent Linear and Adjoint Models: Testing and Applications

Abstract

Our long-term technical goal is to develop and test the Tangent Linear Model (TLM), Representer Model (RPM), and Adjoint Model (ADM) versions of ROMS (Regional Ocean Modeling System) and TOMS (Terrain-following Ocean Modeling System) for variational data assimilation, ensemble forecasting, and stability analysis. The primary focus is to develop a general platform for strong and weak constraint 4D Variational data assimilation (4DVar); to develop an ensemble prediction capability based on optimal perturbations and stochastic optimals; and to develop stability analysis tools based on eigenmodes and singular vectors to explore the role of environmental stochastic forcing in shaping ocean circulation. Our long-term scientific goal is to model and predict the mesoscale circulation and the ecosystem response to physical forcing in the various regions of the World Ocean through state estimation.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2006
Accession Number
ADA630975

Entities

People

  • Hernan G. Arango

Organizations

  • Rutgers University–New Brunswick

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Algorithms
  • Assimilation
  • California
  • Covariance
  • Diffusion
  • Diffusion Coefficient
  • Geographic Regions
  • Geostrophic Currents
  • New Brunswick
  • Nonlinear Dynamics
  • Observation
  • Ocean Currents
  • Oceanography
  • Oceans
  • Terrain
  • Terrain Following
  • United States

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers