globalchange  > 影响、适应和脆弱性
DOI: 10.5194/cp-14-1391-2018
Scopus记录号: 2-s2.0-85054562634
论文题名:
Temperature seasonality in the North American continental interior during the Early Eocene Climatic Optimum
作者: Hyland E.G.; Huntington K.W.; Sheldon N.D.; Reichgelt T.
刊名: Climate of the Past
ISSN: 18149324
出版年: 2018
卷: 14, 期:10
起始页码: 1391
结束页码: 1404
语种: 英语
英文摘要: Paleogene greenhouse climate equability has long been a paradox in paleoclimate research. However, recent developments in proxy and modeling methods have suggested that strong seasonality may be a feature of at least some greenhouse Earth periods. Here we present the first multi-proxy record of seasonal temperatures during the Paleogene from paleofloras, paleosol geochemistry, and carbonate clumped isotope thermometry in the Green River Basin (Wyoming, USA). These combined temperature records allow for the reconstruction of past seasonality in the continental interior, which shows that temperatures were warmer in all seasons during the peak Early Eocene Climatic Optimum and that the mean annual range of temperatures was high, similar to the modern value (∼ 26 °C). Proxy data and downscaled Eocene regional climate model results suggest amplified seasonality during greenhouse events. Increased seasonality reconstructed for the early Eocene is similar in scope to the higher seasonal range predicted by downscaled climate model ensembles for future high-CO2 emissions scenarios. Overall, these data and model comparisons have substantial implications for understanding greenhouse climates in general, and may be important for predicting future seasonal climate regimes and their impacts in continental regions. © 2018 Author(s).
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109525
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

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作者单位: Department of Earth and Space Sciences, University of Washington, Seattle, WA 98195, United States; Department of Marine Earth and Atmospheric Sciences, North Carolina State University, Raleigh, NC 27695, United States; Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, MI 48104, United States; Lamont Doherty Earth Observatory, Columbia University, Palisades, NY 10964, United States

Recommended Citation:
Hyland E.G.,Huntington K.W.,Sheldon N.D.,et al. Temperature seasonality in the North American continental interior during the Early Eocene Climatic Optimum[J]. Climate of the Past,2018-01-01,14(10)
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