Optimal Combining Data for Improving Ocean Modeling

Abstract

The long range scientific goals of the proposed research comprise: (1) developing rigorous approaches to optimal combining different kinds of observations (images, ADCP, HFR, glider, drifters etc) with output of regional circulation models for accurate estimating the upper ocean velocity field, subsurface thermohaline structure, and mixing characteristics (2) constructing computationally efficient and robust estimation algorithms based on alternative parameterizations of uncertainty and comprehensive testing them on synthetic data (3) processing real data in the Adriatic and Ligurian Sea (MREA coastal experiments) via new techniques The objectives for the first year of research were: - Developing and testing methods for fusing HF radar data with tracer (SST, color) and/or drifter observations to improve surface velocity estimates - Constructing and testing fusion algorithms for combining glider observations with output of high resolution circulation model - Incorporating subgrid Lagrangian models identified via drifter data into circulation models for improving estimates of FSLE (finite size Lyapunov exponent) - Developing theoretical approaches based on fuzzy logic to estimating oceanic parameters from small biased samples.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2011
Accession Number
ADA556934

Entities

People

  • L. I. Piterbarg

Organizations

  • University of Southern California

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Algorithms
  • Data Fusion
  • Differential Equations
  • Errors
  • Fuzzy Logic
  • Fuzzy Sets
  • Gulf Stream
  • Measurement
  • Mixing
  • Monte Carlo Method
  • Partial Differential Equations
  • Random Walk
  • Sea Surface Temperature
  • Statistical Analysis
  • Stratified Fluids
  • Test Methods
  • Trajectories

Fields of Study

  • Environmental science

Readers

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

Technology Areas

  • Autonomy