Skip to main content
U.S. flag

An official website of the United States government

Dot Gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

HTTPS

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Xiangjun Tian

Affiliation/Employer
Other
Partner Affiliation
none
ORCID
Not available
Publon ID
Not available

Publications

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