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2019年臭氧层空洞显著缩小：有记录以来最小水平
source link: https://tech.sina.com.cn/d/s/2019-10-24/doc-iicezuev4494338.shtml
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新浪科技讯北京时间10月24日消息，美国国家航空航天局（NASA）称，南极上空的臭氧层空洞已经缩小至1982年开始监测以来最小的水平。之所以出现这一现象，主要原因可能是南极上空大气层的异常天气模式。南极上空臭氧层空洞的大小每年都有波动，通常
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