DOI: 10.1002/2014GL062464
论文题名: Martian surface/near-surface water inventory: Sources, sinks, and changes with time
作者: Carr M.H. ; Head J.W.
刊名: Geophysical Research Letters
ISSN: 0094-8985
EISSN: 1944-8716
出版年: 2015
卷: 42, 期: 3 起始页码: 726
结束页码: 732
语种: 英语
英文关键词: Mars
; water
Scopus关键词: Budget control
; Groundwater
; Water
; Equivalent layer
; Layered deposits
; Mars
; Martian surface
; Outflow channel
; Volcanic outgassing
; Water inventory
; Water layers
; Surface waters
; episodic event
; Mars
; outflow
; source-sink dynamics
; temporal variation
; volcanic gas
; Amazonia
; Hesperia
英文摘要: Today, a 34m global equivalent water layer (GEL) lies in the Martian polar-layered deposits and shallow ground ice. During the Amazonian, 3m was outgassed, and 31m was lost to space and to the surface, leaving 62m at the end of Hesperian. During the Hesperian, volcanic outgassing added 5m, 7m was lost, and 40m GEL of groundwater was added to form outflow channels, leaving 24m carryover of surface water from the Noachian into the Hesperian. The Hesperian budget is incompatible with a northern ocean during this era. These figures are for near-surface water; substantial amounts of water may have existed as deep ground ice and groundwater. Our estimate of approximately 24m near-surface water in the Late Noachian is insufficient to support an ocean at that time also and favors episodic melting of an icy highlands to produce the fluvial and lacustrine features. © 2015 The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84925049915&doi=10.1002%2f2014GL062464&partnerID=40&md5=96768434184bdf33c517e561febd131e
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8601
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: U.S. Geological Survey, Menlo Park, CA, United States
Recommended Citation:
Carr M.H.,Head J.W.. Martian surface/near-surface water inventory: Sources, sinks, and changes with time[J]. Geophysical Research Letters,2015-01-01,42(3).