A Code for Assimilation of Sea Surface Data into POM
Alexey Yaremchuk
Institute for Global Change Research
FRSGC, Japan
A tangent and its adjoint codes to POM are developed and used for
implementation of a hybrid 4D-Var/SEEK incremental variational-smoothing
assimilation scheme of sea surface height data into a barotropic sector
of POM under the perfect-model/data hypothesis. Impacts of the model
and control grid refinement and innovation vector error covariance matrix
rank on the system conditioning and performance are addressed and an
algorithm for numerical comparison of particular system realizations
is presented.