| 基金项目： | Acknowledgements We wish to thank NASA Goddard Space Flight Center, Chapman University and European Framework program #7 project PREEARTHQUAKE for their kind support. We also thank NOAA/National Weather Service National Centers for Environmental Prediction Climate Prediction Centerfor providing OLR data. The IONEX data in this study were acquired as part of NASA＇s Earth Science Data Systems archived and distributed by the Crustal Dynamics Data Information System （CDDIS）. The F10.7 data were acquired from NOAA Space Weather Prediction center. World Data Center （WDC）, Geomagnetism, in Kyoto, Japan, provided the Dst index and the Kp indices. |
