Junjie Liu

Applications of the LETKF to adaptive observations, analysis sensitivity, observation impact and the assimilation of moisture (2007)

Liu, Junjie

In this thesis we explore four new applications of the Local Ensemble Transform Kalman Filter (LETKF), namely adaptive observations, analysis sensitivity, observation impact, and multivariate...

Applications of the LETKF to adaptive observations, analysis sensitivity, observation impact and the assimilation of moisture (2007)

Liu, Junjie

In this thesis we explore four new applications of the Local Ensemble Transform Kalman Filter (LETKF), namely adaptive observations, analysis sensitivity, observation impact, and multivariate...

Comparison between Local Ensemble Transform Kalman Filter and PSAS in the NASA finite volume GCM: perfect model experiments (2007)

Liu, Junjie, Fertig, Elana Judith, Li, Hong, Kalnay, Eugenia, Hunt, Brian R., Kostelich, Eric J., ...

This paper explores the potential of Local Ensemble Transform Kalman Filter (LETKF) by comparing the performance of LETKF with an operational 3D-Var assimilation system, Physical-Space Statistical...

Neural circuits for chromatic and temporal signals in human visual cortex / (2005)

Liu, Junjie., Wandell, Brian A. Advisor

Submitted to the Department of Applied Physics.

UCGE Reports (2004)

Junjie Liu

The Global Positioning System (GPS) double-difference (DD) operations can effectively reduce or eliminate many errors innate to raw undifferenced carrier-phase observables, such as the atmospheric...

Implementation and analysis of GPS ambiguity resolution strategies in single and multiple reference station scenarios (2003)

Liu, Junjie

Bibliography: p. 132-141

Implementation and analysis of GPS ambiguity resolution strategies in single and multiple reference station scenarios [microform] / (2003)

Liu, Junjie.

"MQ-87331."

Implementation and analysis of GPS ambiguity resolution strategies in single and multiple reference station scenarios (2003)

Liu, Junjie

Bibliography: p. 132-141