Ozone depletion-induced climate change following a 50 pc supernova
Ozone depletion-induced climate change following a 50 pc supernova
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50 颗超新星爆发后臭氧层消耗引发气候变化
DOI：
10.1103/physrevresearch.2.043076
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Cody L. Ratterman
中科院分区：
文献类型：
--
作者：
B. Thomas;Cody L. Ratterman
众所周知，地球大气层中的臭氧对气候具有辐射强迫效应。受260万年前附近一颗或多颗超新星的地球化学证据的启发，我们研究了一个大约50 pc的超新星是否会通过对大气臭氧浓度的影响而导致地球气候变化的问题。我们使用了“行星模拟器”（PlaSim）的中等复杂性的气候模式与规定的臭氧剖面从现有的大气化学建模。我们发现，对全球平均表面温度的影响很小，但局部变化较大，大气环流和降水模式的差异可能是显着的区域。
Ozone in Earth's atmosphere is known to have a radiative forcing effect on climate. Motivated by geochemical evidence for one or more nearby supernovae about 2.6 million years ago, we have investigated the question of whether a supernova at about 50 pc could cause a change in Earth's climate through its impact on atmospheric ozone concentrations. We used the "Planet Simulator" (PlaSim) intermediate-complexity climate model with prescribed ozone profiles taken from existing atmospheric chemistry modeling. We found that the effect on globally averaged surface temperature is small, but localized changes are larger and differences in atmospheric circulation and precipitation patterns could be significant regionally.
影响因子：
1.2
作者：
Fraedrich, K;Jansen, H;Lunkeit, F
通讯作者：
Lunkeit, F