Spectroscopy and Spectral Analysis, Volume. 35, Issue 6, 1690(2015)
Simulation of Atmospheric Nitrous Oxide Profiles Retrieval from AIRS Observations
Nitrous Oxide is a very important greenhouse gases and ozone-depleting substances. Due to the limited observations, there are still many uncertainties to quantitativelydescribe therole of nitrous oxide played in both cases. We can retrieve the methane and carbon dioxide gas using thermal infrared satellite data AIRS, but it is rarely for the nitrous oxide retrieval. Therefore, this paper retrieves nitrous oxideprofiles from the AIRS data with anOptimal Estimate Method for the first time in China. The issue of the a priori and channelselection is discussed. Comparison of the retrieved AIRS profiles with HIPPOprofiles show the retrieved profiles are in good agreement with the smoothed HIPPO profiles, and a notable improvementin this algorithmthan the eigenvector regression algorithm. For pressures between 300 and 900 hPa, we got the most accurate profiles and the relative erroris only 0.1%, which is consistent with the jacobian peaks of the selected channels.
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MA Peng-fei, CHEN Liang-fu, LI Qing, TAO Ming-hui, WANG Zi-feng, ZHANG Ying, WANG Zhong-ting, ZHOU Chun-yan. Simulation of Atmospheric Nitrous Oxide Profiles Retrieval from AIRS Observations[J]. Spectroscopy and Spectral Analysis, 2015, 35(6): 1690
Received: Apr. 3, 2014
Accepted: --
Published Online: Jun. 11, 2015
The Author Email: Peng-fei MA (mpf136@163.com)