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Xiangjun Tian

Partner Affiliation
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Corresponding Articles: 1

Xiangjun Tian authored and/or contributed to the following articles/publications.

Nonlinear Least Squares En4DVar to 4DEnVar Methods for Data Assimilation: Formulation, Analysis, and Preliminary Evaluation

The En4DVar method is designed to combine the flow-dependent statistical covariance information of EnKF into the traditional 4DVar method. However, the En4DVar method is still hampered by its strong dependence on the adjoint model of the underlying forecast model and by its complexity, maintenance requirements, and the high cost of computer impl...

Xiangjun Tian
Institution National Oceanic and Atmospheric Administration - NOAA