汪帮主卫星遥感空间分享 http://blog.sciencenet.cn/u/zjwang 湖北鄂州人,2011年博士毕业于吉林大学。现从事卫星遥感技术工作。

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SCIA_JLU-our trace gas retrieval program from limb radiance

已有 5920 次阅读 2010-10-25 13:28 |个人分类:计算程序|系统分类:科研笔记|关键词:学者| retrieval, SCIATRAN, SCIAMACHY, ozone

Our SCIA_JLU V2.0 has been developed! This program can be used to retrieve both ozone and nitrogen dixode (O3 and NO2) vertical number density profiles.

V2.0 for both O3 and NO2

 

V1.0 only for O3

This program chain SCIA_JLU is able to process SCIAMACHY L1B limb radiance to retrieve ozone profiles between 10 to 70 km using Hartley-huggins and Chappuis obsorbing bands.

This program code is writen by Ph.D Zijun Wang

The copyright of the SCIA_JLU is reserved by Dpt. Remote Sensing and GIS, College of Geo-Exploration Science and Technology, Jilin University, China. This project is leaded by Prof. Dr. Shengbo Chen,

SCIA_JLU has the ability of batch processing without human intervention, i.e., you can put all your SCIAMACHY L1B data in a direcotry, and run this program only input the directory of your data.

The retrieval step is:

1, Reading an orbit SCIAMACHY L1B data
2, Extrat the limb measurement
3,
Recovering the randiance and the geometry as well as other needed parameters for simulation
4, Processing the 1st profile
5, Run the SCIATRAN to model the radiance
6, Do the retrieval iteration, and replace the profiles in SCIATRAN
7, Repet 5 and 6
8, End iteration and start to next profile
9, End all the profile retrieval in an orbit data and back 1
10, End all the data retrieval in the directory

SCIA_JLU combined SCIATRAN and can only be run in Linux system, and test only on Ubuntu-10.04.

The program will tell us which iteration and which profiles are calculating currently. Furthermore, the percent difference from 10 to 70 km as well as maximum and minmum percent difference between continuous two profiles will be shown when runing for checking the state.



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