Description of Recent Updates to the NRL Coupled Ocean Data Assimilation System (NCODA)

Abstract

Advanced DA Technique Based on Optimal Estimation Theory. Oceanographic version of MVOI method used in NWP systems Lorenc (1981), Daley (1991). Simultaneous analysis of five ocean variables: temperature, salinity, geopotential, and u-v velocity components (T, S, phi, u, v). Developed as part of the ONR sponsored coupled modeling projects at NRL MRY (COAMPS/NCOM and NOGAPS/POP) Flexible System. Supports variety of map projections. Performs multi-scale analyses on nested, successively higher resolution grids. Initialize/update ocean forecast model or run stand-alone. 2D analyses of sea ice and SST (NWP boundary conditions). 3D temperature and salinity analysis (geostrophic currents). 3D MVOI sequential incremental update cycle.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2004
Accession Number
ADA579820

Entities

People

  • James A. Cummings

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Artificial Satellites
  • Assimilation
  • Geostrophic Currents
  • Grids
  • Ice
  • Information Operations
  • Instrumentation
  • Map Projection
  • Marine Meteorology
  • Military Research
  • Northern Hemisphere
  • Observation
  • Oceans
  • Quality Control
  • Salinity
  • Sea Ice
  • Solar Radiation

Fields of Study

  • Environmental science

Readers

  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers
  • Regression Analysis.