Anomalies of total column CO and O-3 associated with great earthquakes in recent years

作者：Cui, Y.; Du, J.^*; Zhang, D.; Sun, Y.

来源：Natural Hazards and Earth System Sciences, 2013, 13(10): 2513-2519.

DOI：10.5194/nhess-13-2513-2013

• TROPOSPHERIC OZONE
• CARBON-MONOXIDE
• MAJOR EARTHQUAKES
• KOBE EARTHQUAKE
• VARIABILITY
• PRECURSORS
• SURFACE

Variations of total column CO and O-3 in the atmosphere over the epicenter areas of 35 great earthquakes that occurred throughout the world in recent years were studied based on the hyper-spectrum data from Atmospheric Infrared Sounder (AIRS). It was found that anomalous increases of CO and/or O-3 concentrations occurred over the epicenter areas of 12 earthquakes among the 35 studied ones. However, increases in both CO and O-3 concentrations were found for 6 earthquakes. The O-3 anomalies appeared in the month when the earthquake occurred and lasted for a few months, whereas CO anomalies occurred irregularly. The duration of CO and O-3 anomalies related to the earthquakes ranged from 1 to 6 months. The anomalies of CO concentration related to the earthquake can be mainly attributed to gas emission from the lithosphere and photochemical reaction, while the anomalous increases in O-3 concentration can be mainly due to the transport of O-3-enriched air and photochemical reaction. However, more work needs to be done in order to understand the mechanism of the CO and O-3 anomalies further.

• 出版日期2013
• 单位中国地震局地震预测研究所; 中国地质大学（北京）