英国南极调查局的科学家安娜·琼斯告诉《独立报》说,今年臭氧空洞的形状很不寻常。
She said: “Very occasionally in the Antarctic you will get disturbances. And I don’t think anybody knows what’s triggered it this year. This is a pretty new phenomenon. It could be a multiple collection of factors.”
她说:“在南极,很少会受到干扰。我想没有人知道是什么引发了这种改变。这是一种全新的现象,可能是多种因素造成的。”
Satellite records for the polar vortex in Antarctica go back to the late 1970s, but the 2002 split vortex is the only other major change.
南极极地涡旋的卫星记录可以追溯到20世纪70年代末,但2002年的分裂涡旋是此前唯一一次重大变化。
“Scientists haven’t quite figured it out yet … there are various things they can look at, but it’s certainly very unusual,” Dr Jones said.
琼斯博士说:“科学家们还没有完全弄清楚,他们要考虑的有各种因素,但这确实很不寻常。”
Explaining how the polar vortex normally works, she said: "Over Antarctica you have a very strong westerly wind system which sets up over the winter. You get very cold temperatures over the Antarctic continent and the winds are very fast, which holds it in place."
在解释极地涡旋通常是如何运转时,她说:“在南极洲上空有一个非常强的西风系统,在冬季形成。南极大陆非常寒冷,风速也非常快,让极地涡旋无法移动。”
【研究:南极上空臭氧空洞形状“异乎寻常”】相关文章:
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