气候变化领域集成服务门户(CCPortal): Groundwater Release on Early Mars: Utilizing Models and Proposed Evidence for Groundwater Release to Estimate the Required Climate and Subsurface Water Budget

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DOI	10.1029/2020GL087230
	Groundwater Release on Early Mars: Utilizing Models and Proposed Evidence for Groundwater Release to Estimate the Required Climate and Subsurface Water Budget
	Palumbo A.M.; Head J.W.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:8
英文摘要	It has been proposed that groundwater was released onto the early martian surface in several locations, including Meridiani Planum, NE Hellas, Terra Sirenum, the northern lowlands, and Gale crater. We assume that groundwater was released in a manner similar to a groundwater-fed lake on Earth and then use a combination of a global climate model and mathematical relationships to place lower limit estimates on the early climate and subsurface water inventory that are required for groundwater release to occur at all of these locations. We find that the minimum required conditions are global mean annual temperature >284 K and a subsurface water inventory >496 m global equivalent layer. Additionally, thermal models predict that if such warm conditions occurred from punctuated heating in an otherwise “cold and icy” climate, the warm conditions must have persisted for thousands of years in order to remove the cryosphere and permit groundwater release. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Budget control; Earth (planet); Estimation; Groundwater; Plants (botany); Equivalent layer; Global climate model; Martian surface; Mathematical relationship; Mean annual temperatures; Meridiani Planum; Subsurface waters; Warm conditions; Climate models; climate modeling; cryosphere; global climate; groundwater; heating; inventory; Mars; planetary surface; prediction; temperature
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170458
作者单位	Department of Earth, Environmental and Planetary Sciences, Brown University, Providence, RI, United States
推荐引用方式 GB/T 7714	Palumbo A.M.,Head J.W.. Groundwater Release on Early Mars: Utilizing Models and Proposed Evidence for Groundwater Release to Estimate the Required Climate and Subsurface Water Budget[J],2020,47(8).
APA	Palumbo A.M.,&Head J.W..(2020).Groundwater Release on Early Mars: Utilizing Models and Proposed Evidence for Groundwater Release to Estimate the Required Climate and Subsurface Water Budget.Geophysical Research Letters,47(8).
MLA	Palumbo A.M.,et al."Groundwater Release on Early Mars: Utilizing Models and Proposed Evidence for Groundwater Release to Estimate the Required Climate and Subsurface Water Budget".Geophysical Research Letters 47.8(2020).