Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL089044 |
A dynamical framework for interpreting ancient sea surface temperatures | |
Emily J. Judd; Tripti Bhattacharya; Linda C. Ivany | |
2020-07-17 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2020 |
英文摘要 | Efforts to estimate past global mean temperature and latitudinal gradients must contend with spatial heterogeneity in sea surface temperatures (SSTs). Here, we use modern SSTs to show that the environments from which most paleoclimatic data are drawn, shallow epeiric seas and continental margins, are systematically offset from zonal mean temperatures. Epeiric seas are warmer and more seasonal than open‐ocean values from the same latitudes, while continental margins exhibit consistent and predictable deviations related to gyre circulation. Warm temperatures inferred from Paleozoic proxy data may largely reflect that these data derive almost entirely from epeiric seas. Moreover, pseudoproxy analysis using Paleogene sampling localities demonstrates how under‐sampling of the full range of dynamical environments associated with gyre circulation can generate spurious estimates of latitudinal temperature gradients. Recognition of these global patterns permits a predictive framework within which to more robustly interpret proxy data, improve Earth system models, and reconstruct ancient dynamic regimes. |
领域 | 气候变化 |
URL | 查看原文 |
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/284282 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Emily J. Judd,Tripti Bhattacharya,Linda C. Ivany. A dynamical framework for interpreting ancient sea surface temperatures[J]. Geophysical Research Letters,2020. |
APA | Emily J. Judd,Tripti Bhattacharya,&Linda C. Ivany.(2020).A dynamical framework for interpreting ancient sea surface temperatures.Geophysical Research Letters. |
MLA | Emily J. Judd,et al."A dynamical framework for interpreting ancient sea surface temperatures".Geophysical Research Letters (2020). |
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