TELECONNECTION BETWEEN SEA－SURFACE TEMPERATURE IN TROPICAL EASTERN PACIFIC AND OZONOSPHERE OVER NORTHERN HEMISPHERE

Seasonal interaction between sea-surface temperature (SST) in the tropical eastern Pacific and ozone layer in Northern Hemisphere, ahd the layer,s teleconnection spatial structure caused by SST effeets, for January and July, are statistically analysed. The result indicates that the areas spacially correlated between SST and ozone layer in January greatly differ from the ones in July and they show opposite tendency in the signs of correlation, so do the teleconnection pattern for the ozone lay6r due to effects of SST in different seasons. In addition, persistent' influence of SST on the ozone layer results insuperposition of seasonal SST effects on the layer and makes it characteristic of well-defined wavetrainsin responses to SST. It is concluded that SST in the tropical eastern Pacific is of great importance to thenorthern ozone layer distribution and its seasonal evolution.     

中国大陆火山活动对气候与环境影响的研究进展

本文简要回顾了我国中、新生代典型中酸性火山活动的气候环境效应的研究进展,重点讨论了新生代长白山天池火山喷发和中生代辽西火山活动对气候环境造成的影响。天池火山气体含量呈现两个相同趋势的旋回式变化,从早到晚,卤化物和H2O呈降低趋势,而硫化物气体呈增加趋势。火山旋回早期富含HF气体导致动物窒息、甚至大批集群死亡;晚期喷出的大量硫化物气体可以形成大规模酸雨和剧毒火山灰云幕,对周围的动植物生长有严重影响。辽西火山气体可分为三种组合,形成酸雨,导致地表温度下降,加速臭氧浓度降低,甚至破坏臭氧层,从而对生物的生存环境造成严重危害。