A dual-weighted approach to order reduction in 4D-Var data assimilation
D.N. Daescu and I.M. Navon. Monthly Weather Review, 136: 1026-1041, 2008.

On the sensitivity equations of 4D-Var data assimilation
D.N. Daescu. Monthly Weather Review, 136: 3050-3065, 2008.

Adjoint estimation of the variation in a model functional output due to assimilation of data
D.N. Daescu. Monthly Weather Review, submitted.

Adaptive observations using HSV and TESV in a 4D-Var framework with a finite volume shallow-water model
I.M. Navon, D. N. Daescu, and Yanhua Cao. Tellus-A, submitted.

Sensitivity to Observations in Model-Constrained Optimization
D.N. Daescu
2008 SIAM Conference on Optimization, Boston, MA May 10-13, 2008.

Reduced-Order Observation Sensitivity in 4D-Var Data Assimilation
D.N. Daescu and I.M. Navon.
The 12th Conference on Integrated Observing and Assimilation Systems for Atmosphere, Oceans, and Land Surface (IOAS-AOLS)
88th American Meteorological Society Annual Meeting, New Orleans, LA 20-24 January 2008.

The Impact of Data Interaction on Targeted Observations with a 4D-Var Data Assimilation System
D.N. Daescu, I.M. Navon, S. Akella, G. Erlebacher.
The 11th Conference on Integrated Observing and Assimilation Systems for Atmosphere, Oceans, and Land Surface (IOAS-AOLS)
87th American Meteorological Society Annual Meeting, San Antonio, TX 14-18 January 2007

Analysis of a POD Approach to Order Reduction in 4D-Var Data Assimilation,
D.N. Daescu and I.M. Navon.
2007 SIAM Conference on Computational Science and Engineering, Costa Mesa, CA, Feb 19-23, 2007

Toward an Optimal Reduced Order Control Strategy in 4D-Var Data Assimilation,
D.N. Daescu and I.M. Navon.
2007 SIAM Conference on Mathematical and Computational Issues in the Geosciences, Santa Fe, New Mexico, March 19-22, 2007

The Impact of the Numerical Discretization on Targeted Observations,
H. Godinez and D.N. Daescu.
2007 SIAM Conference on Mathematical and Computational Issues in the Geosciences, Santa Fe, New Mexico, March 19-22, 2007

Development of a Reduced Order Control Strategy in 4D-Var Data Assimilation
D.N. Daescu, I.M. Navon, G. Erlebacher, S. Akella.
2006 AGU Fall Meeting, San Francisco, Dec 11-15, 2006

Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the
National Aeronautics and Space Administration