Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL086955 |
A Geothermal heat flux map of Antarctica empirically constrained by seismic structure | |
Weisen Shen; Douglas Wiens; Andrew Lloyd; Andy Nyblade | |
2020-06-20 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2020 |
英文摘要 | The geothermal heat flux (GHF) is an important boundary condition for modeling the movement of the Antarctic ice‐sheet, but is difficult to measure systematically at a continental scale. Earlier GHF maps suffer from low resolution and possibly biased assumptions in tectonism and crustal heat generation, resulting in significant uncertainty. We present a new GHF map for Antarctica constructed by empirically relating the upper mantle structure to known GHF in the continental US. The new map, compared with previously seismologically determined one, has improved resolution and lower uncertainties. New features in this map include high GHF in the southern Transantarctic Mountains where warmer uppermost mantle is introduced by lithospheric removal and in the Thwaites Glacier region. Additionally, a modest GHF in the central West Antarctic Rift system near the Siple Coast and an absence of large‐scale regions with GHF greater than 90 mW/m2 are found. |
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/276591 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Weisen Shen,Douglas Wiens,Andrew Lloyd,et al. A Geothermal heat flux map of Antarctica empirically constrained by seismic structure[J]. Geophysical Research Letters,2020. |
APA | Weisen Shen,Douglas Wiens,Andrew Lloyd,&Andy Nyblade.(2020).A Geothermal heat flux map of Antarctica empirically constrained by seismic structure.Geophysical Research Letters. |
MLA | Weisen Shen,et al."A Geothermal heat flux map of Antarctica empirically constrained by seismic structure".Geophysical Research Letters (2020). |
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