Grace Wahba Talk, European Center for Medium Range Numerical Weather Prediction
Grace Wahba talk, ECMWF, November 2, 1998
Title:
Adaptive Tuning, Four Dimensional Variational
Data Assimilation, and
Representers in Reproducing Kernel Hilbert Spaces
Talk by
Grace Wahba
at the European Center for Medium Range Weather Prediction (ECMWF)
in the Workkshop on the Diagnosis of Data Assimilation
Systems, Reading, England, November 2-4, 1998.
Summary: We (abstractly) generalize the `toy' weak 4D-VAR model in
Gong, Wahba, Johnson and Tribbia, Monthly Weather Review, January 1998
to include adaptive tuning of a variety of parameters throughout
the 4D-VAR variational problem, and note issues of sensitivity and
identifiability. We discuss `models' for model errors
which include systematic, short memory and long memory errors. Finally
we remark on the role of the theory of representers in reproducing
kernel Hilbert spaces in the weak 4D-VAR setting.
The long abstract is
here.
Grace Wahba, Students and Colleagues, links to
Technical Reports since 1993 available on the web
here.
References to few papers with results applicable in
atmospheric sciences by Grace Wahba
and colleagues are listed
here.
Grace Wahba's publications are listed
here.