Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016GL072241 |
Baby, it's cold outside: Climate model simulations of the effects of the asteroid impact at the end of the Cretaceous | |
Brugger, Julia1,2,3; Feulner, Georg1,3; Petri, Stefan1 | |
2017 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:1 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany |
英文摘要 | Sixty-six million years ago, the end-Cretaceous mass extinction ended the reign of the dinosaurs. Flood basalt eruptions and an asteroid impact are widely discussed causes, yet their contributions remain debated. Modeling the environmental changes after the Chicxulub impact can shed light on this question. Existing studies, however, focused on the effect of dust or used one-dimensional, noncoupled atmosphere models. Here we explore the longer-lasting cooling due to sulfate aerosols using a coupled climate model. Depending on aerosol stratospheric residence time, global annual mean surface air temperature decreased by at least 26 degrees C, with 3 to 16years subfreezing temperatures and a recovery time larger than 30years. The surface cooling triggered vigorous ocean mixing which could have resulted in a plankton bloom due to upwelling of nutrients. These dramatic environmental changes suggest a pivotal role of the impact in the end-Cretaceous extinction. |
英文关键词 | K-Pg boundary climate model simulations Chicxulub impact |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000393954900049 |
WOS关键词 | TERTIARY MASS EXTINCTION ; PALEOGENE BOUNDARY ; CHICXULUB IMPACT ; INTERMEDIATE COMPLEXITY ; MARINE PRODUCTIVITY ; SYSTEM MODEL ; EARTH ; WINTER ; SENSITIVITY ; PERFORMANCE |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/26931 |
专题 | 气候变化 |
作者单位 | 1.Potsdam Inst Climate Impact Res, Earth Syst Anal, Potsdam, Germany; 2.Univ Potsdam, Inst Phys & Astron, Potsdam, Germany; 3.Berlin Brandenburg Inst Adv Biodivers Res, Berlin, Germany |
推荐引用方式 GB/T 7714 | Brugger, Julia,Feulner, Georg,Petri, Stefan. Baby, it's cold outside: Climate model simulations of the effects of the asteroid impact at the end of the Cretaceous[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(1). |
APA | Brugger, Julia,Feulner, Georg,&Petri, Stefan.(2017).Baby, it's cold outside: Climate model simulations of the effects of the asteroid impact at the end of the Cretaceous.GEOPHYSICAL RESEARCH LETTERS,44(1). |
MLA | Brugger, Julia,et al."Baby, it's cold outside: Climate model simulations of the effects of the asteroid impact at the end of the Cretaceous".GEOPHYSICAL RESEARCH LETTERS 44.1(2017). |
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