A Cloud Parameters Retrieval Algorithm in the Variational Assimilation System

DOI

10.2991/iccasm.2012.152How to use a DOI?

Keywords

cloud parameters , 1D-Var, 4D-Var

Abstract

According to the past experience of retrieving cloud parameters, the assimilation of cloud-affected infrared radiances is a difficult problem in the numerical weather prediction. Based on our own four-dimensional variational assimilation (4D-Var) system’s characteristics, we have designed our own cloud-affected infrared satellite radiances variational assimilation system which includes a onedimensional variational assimilation (1D-Var) retrieval algorithm of cloud parameters. In this system, cloud parameters are considered as the intermediary to constrain the radiative transfer calculation after they are passed to our 4DVar system. Consequently, acquiring the accurate cloud parameters is the key step of the assimilation of cloud-affected infrared radiances. This article analyzes the 1D-Var algorithm which is used to retrieve cloud parameters in our variational data assimilation system and validates the good performance of this method.

Copyright

© 2012, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Qunbo Huang
AU  - Weimin Zhang
AU  - Yi Yu
PY  - 2012/08
DA  - 2012/08
TI  - A Cloud Parameters Retrieval Algorithm in the Variational Assimilation System
BT  - Proceedings of the 2012 International Conference on Computer Application and System Modeling (ICCASM 2012)
PB  - Atlantis Press
SP  - 599
EP  - 602
SN  - 1951-6851
UR  - https://doi.org/10.2991/iccasm.2012.152
DO  - 10.2991/iccasm.2012.152
ID  - Huang2012/08
ER  -