时间：2012年6月11日(周一)， 上午9:30

地点：九章大厦  土星厅

报告人：David A. Krueger 教授

　　　  美国科罗拉多州立大学物理系

Abstract: 

　  Two methods, based on different assumptions, have been investigated for computing the uncertainty in the trend of 960 mesopause region temperature measurements taken over 20 years. The fitting model includes a trend, annual and semiannual variations, a solar effect, and an episodic term that can be associated with the Mount Pinatubo volcanic eruption. There is a nonlinear dependence on parameters describing the episodic term.