Articles | Volume 16, issue 14
https://doi.org/10.5194/acp-16-9149-2016
https://doi.org/10.5194/acp-16-9149-2016
Research article
 | 
26 Jul 2016
Research article |  | 26 Jul 2016

Large XCH4 anomaly in summer 2013 over northeast Asia observed by GOSAT

Misa Ishizawa, Osamu Uchino, Isamu Morino, Makoto Inoue, Yukio Yoshida, Kazuo Mabuchi, Tomoko Shirai, Yasunori Tohjima, Shamil Maksyutov, Hirofumi Ohyama, Shuji Kawakami, Atsushi Takizawa, and Dmitry Belikov

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Short summary
Greenhouse gases Observing SATellite (GOSAT) was launched to monitor CO2 and CH4 concentrations from the space. This paper analyses an extremely high XCH4 event over Northeast Asia observed by GOSAT in the summer of 2013. Results indicate that the high XCH4 event was caused by fast transport of CH4-rich air from East China to Japan due to anomalies of north Pacific high-pressure system over East Asia. This study demonstrates the capability of GOSAT to detect an XCH4 event on a synoptic scale.
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