全球增暖的另一可能原因初探

太阳是地球流体(大气和海洋等)运动的最终能量源,地球环境,尤其是气候的变化不能不与太阳活动有关.目前,普遍将全球增暖归结为温室气体含量增加所导致的温室效应的加剧,这无疑是有一定依据和有道理的.但从科学上来讲,人类活动所引起温室气体增加的影响,并非是唯一原因.基于已有的一些研究结果,从太阳活动的观点所进行的初步分析表明,太阳活动也可能是引起近世纪全球增暖的另一个重要原因.太阳活动的影响主要包括太阳辐射的直接影响和引发地磁场变化的间接影响两个方面,地球磁场的变化将可通过动力过程和热力过程而影响大气环流和气候的变化.

Initial Investigation of Another Possible Reason to Cause Global Warming

The solar radiation is a fundamental energy source to cause the motions of geophysical fluid (the atmosphere, the ocean and so on), so that the global environment, particularly the climate variability must be connected with the solar activity. At present, it is universal to put the blame of the global warming on the aggravation of greenhouse effect caused by the concentration increase of the greenhouse gases. This is truth in a certain sense, but from the scientific theory, the concentration increase of the greenhouse gases caused by anthropogenic activity is not only reason to lead to the global warming. Based on some studies, it is investigated initially from the forcing of the solar activity and found that the solar activity is another possible important reason of the global warming, especially in the recent century. The influences of the solar activity include the direct radiation effect and the indirect effect through the geomagnetic field variation. The geomagnetic field variation will influence the atmospheric circulation and climate through dynamic and themodynamic processes.