Using the local ensemble Transform Kalman Filter for upper atmospheric modelling
Using the local ensemble Transform Kalman Filter for upper atmospheric modelling
复制标题
使用局部系综变换卡尔曼滤波器进行高层大气建模
DOI:
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发表时间:
2019
影响因子:
3.3
通讯作者:
M. Angling
中科院分区:
文献类型:
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作者:
S. Elvidge;M. Angling
The Advanced Ensemble electron density (Ne) Assimilation System (AENeAS) is a new data assimilation model of the ionosphere/thermosphere. The background model is provided by the Thermosphere Ionosphere Electrodynamics General Circulation Model (TIE-GCM) and the assimilation uses the local ensemble transform Kalman filter (LETKF). An outline derivation of the LETKF is provided and the equations are presented in a form analogous to the classic Kalman filter. An enhancement to the efficient LETKF implementation to reduce computational cost is also described. In a 3 day test in June 2017, AENeAS exhibits a total electron content (TEC) RMS error of 2.1 TECU compared with 5.5 TECU for NeQuick and 6.8 for TIE-GCM (with an NeQuick topside).
DOI:
10.1002/2014ja020799
发表时间:
2016-01
期刊:
Journal of Geophysical Research: Space Physics
影响因子:
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作者:
A. Chartier;T. Matsuo;Jeffrey L. Anderson;N. Collins;T. Hoar;G. Lu;C. Mitchell;A. Coster;L. Paxton;G. Bust
通讯作者:
A. Chartier;T. Matsuo;Jeffrey L. Anderson;N. Collins;T. Hoar;G. Lu;C. Mitchell;A. Coster;L. Paxton;G. Bust