气候变化领域集成服务门户(CCPortal): Review article: Geothermal heat flow in Antarctica: Current and future directions

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DOI	10.5194/tc-14-3843-2020
	Review article: Geothermal heat flow in Antarctica: Current and future directions
	Burton-Johnson A.; Dziadek R.; Martin C.
发表日期	2020
ISSN	19940416
起始页码	3843
结束页码	3873
卷号	14 期号:11
英文摘要	Antarctic geothermal heat flow (GHF) affects the temperature of the ice sheet, determining its ability to slide and internally deform, as well as the behaviour of the continental crust. However, GHF remains poorly constrained, with few and sparse local, borehole-derived estimates and large discrepancies in the magnitude and distribution of existing continent-scale estimates from geophysical models. We review the methods to estimate GHF, discussing the strengths and limitations of each approach; compile borehole and probe-derived estimates from measured temperature profiles; and recommend the following future directions. (1) Obtain more borehole-derived estimates from the subglacial bedrock and englacial temperature profiles. (2) Estimate GHF from inverse glaciological modelling, constrained by evidence for basal melting and englacial temperatures (e.g. using microwave emissivity). (3) Revise geophysically derived GHF estimates using a combination of Curie depth, seismic, and thermal isostasy models. (4) Integrate in these geophysical approaches a more accurate model of the structure and distribution of heat production elements within the crust and considering heterogeneities in the underlying mantle. (5) Continue international interdisciplinary communication and data access. © Author(s) 2020. This work is distributed under the Creative Commons Attribution 4.0 License.
英文关键词	basal melting; bedrock; borehole; geophysics; heat flow; heat production; isostasy; Antarctica
语种	英语
来源期刊	Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/202038
作者单位	British Antarctic Survey, High Cross, Madingley Road, Cambridge, CB3 0ET, United Kingdom; Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Alten Hafen, Bremerhaven, Germany
推荐引用方式 GB/T 7714	Burton-Johnson A.,Dziadek R.,Martin C.. Review article: Geothermal heat flow in Antarctica: Current and future directions[J],2020,14(11).
APA	Burton-Johnson A.,Dziadek R.,&Martin C..(2020).Review article: Geothermal heat flow in Antarctica: Current and future directions.Cryosphere,14(11).
MLA	Burton-Johnson A.,et al."Review article: Geothermal heat flow in Antarctica: Current and future directions".Cryosphere 14.11(2020).