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Authors: L. Guan and Q. Yang

Affiliation: Collaborative Innovation Centre on Forecast and Evaluation of Meteorological Disasters, Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration and Nanjing University of Information Science and Technology, China

Keyword(s): methane profile;AIRS;GOSAT

Abstract: The CH4 profiles derived from AIRS/AMSU (Atmospheric Infrared Sounder/ Advanced Microwave Sounding Unit, hereinafter referred to as AIRS) and GOSAT (Greenhouse Gases Observing Satellite) at China's five major WMO/GAW atmospheric background stations are comprised in this paper. The five background sites are Waliguan, Lin'an, Longfengshan, Shangdianzi and Shangri-La station. The data was selected from April 2009 to December 2013. The results show that AIRS and GOSAT CH4 profiles have the similar vertical distribution. The GOSAT CH4 concentrations are slightly higher than the AIRS ones at the near surface level. They are in highest coincidence from 500 to 600 hPa with the differences all within 17.9 ppbv. The AIRS retrievals are obviously higher than GOSAT retrievals with larger difference (maximum 254.5 ppbv) from 10 to 70 hPa. The difference of the two inversions is smaller in spring than in other seasons. The CH4 inversion accuracy of AIRS is greatly affected by cloud within the fie ld of view, and also comes from retrieval algorithms, seasonal changes and so on. (More)

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Paper citation in several formats:
Guan, L. and Yang, Q. (2018). Space-based Validation of Methane Products from AIRS/AMSU in China. In Proceedings of the International Workshop on Environmental Management, Science and Engineering - IWEMSE; ISBN 978-989-758-344-5, SciTePress, pages 20-27. DOI: 10.5220/0007556600200027

@conference{iwemse18,
author={L. Guan. and Q. Yang.},
title={Space-based Validation of Methane Products from AIRS/AMSU in China},
booktitle={Proceedings of the International Workshop on Environmental Management, Science and Engineering - IWEMSE},
year={2018},
pages={20-27},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007556600200027},
isbn={978-989-758-344-5},
}

TY - CONF

JO - Proceedings of the International Workshop on Environmental Management, Science and Engineering - IWEMSE
TI - Space-based Validation of Methane Products from AIRS/AMSU in China
SN - 978-989-758-344-5
AU - Guan, L.
AU - Yang, Q.
PY - 2018
SP - 20
EP - 27
DO - 10.5220/0007556600200027
PB - SciTePress

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