伽马射线暴对海洋光合作用的短期影响
Short-term effects of Gamma Ray Bursts on oceanic photosynthesis
摘要:
我们继续我们以前关于伽马射线暴对地球生物圈的潜在短期影响的工作,重点是对生命的唯一重要短期影响:由于伽马辐射通过大气层的重新传输而发生的紫外线闪光。因此,在这项工作中,我们计算的紫外线辐射穿透水柱的第一百米,Jerlov的海水类型I,II和III。然后,我们估计的紫外线闪光潜在的光合作用抑制,表明它可以是重要的,在相当大的一部分的水柱与光足以进行光合作用,所谓的透光区。
英文摘要:
We continue our previous work on the potential short-term influence of a gamma ray bursts on Earth's biosphere, focusing on the only important short-term effect on life: the ultraviolet flash which occurs as a result of the retransmission of the γ radiation through the atmosphere. Thus, in this work we calculate the ultraviolet irradiances penetrating the first hundred meters of the water column, for Jerlov's ocean water types I, II and III. Then we estimate the UV flash potential for photosynthesis inhibition, showing that it can be important in a considerable part of the water column with light enough for photosynthesis to be done, the so called photic zone.
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