4DVar Tutorial Introduction

4-Dimensional Variational (4D-Var) Data Assimilation Tutorial

This page is under construction

Download the code

All of the additional scripts necessary to run the 4D-Var tests are available from the ROMS Subversion (SVN) repository. The 4D-Var test cases are for the California Current System, 1/3 degree resolution, (WC13).

> svn checkout --username joeroms https://www.myroms.org/svn/src/test my_test

Directory Structure

When the checkout is complete, you will have the following directory structure under your my_test directory.

 /WC13
      /ARRAY_MODES
      /Data
      /Functionals
      /I4DVAR
      /I4DVAR_impact
      /Normalization
      /plotting
      /PSAS
      /PSAS_impact
      /PSAS_sensitivity
      /R4DVAR
      /R4DVAR_impact
      /R4DVAR_sensitivity