globalchange  > 科学计划与规划
DOI: 10.1002/2016GL070534
论文题名:
Direct measurement of evapotranspiration from a forest using a superconducting gravimeter
作者: Van Camp M.; de Viron O.; Pajot-Métivier G.; Casenave F.; Watlet A.; Dassargues A.; Vanclooster M.
刊名: Geophysical Research Letters
ISSN: 0094-8558
EISSN: 1944-8289
出版年: 2016
卷: 43, 期:19
起始页码: 10225
结束页码: 10231
语种: 英语
英文关键词: deciduous forest ; evapotranspiration ; superconducting gravimeter
Scopus关键词: Ecology ; Ecosystems ; Evapotranspiration ; Forestry ; Gravimeters ; Continuous monitoring ; Deciduous forest ; Direct measurement ; Gravity changes ; Gravity measurement ; Mass distribution ; Superconducting gravimeter ; Terrestrial ecosystems ; Gravitation
英文摘要: Evapotranspiration (ET) controls the flux between the land surface and the atmosphere. Assessing the ET ecosystems remains a key challenge in hydrology. We have found that the ET water mass loss can be directly inferred from continuous gravity measurements: as water evaporates and transpires from terrestrial ecosystems, the mass distribution of water decreases, changing the gravity field. Using continuous superconducting gravity measurements, we were able to identify daily gravity changes at the level of, or smaller than, 10−9 nm s−2 (or 10−10 g) per day. This corresponds to 1.7 mm of water over an area of 50 ha. The strength of this method is its ability to enable a direct, traceable and continuous monitoring of actual ET for years at the mesoscale with a high accuracy. ©2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84991096046&doi=10.1002%2f2016GL070534&partnerID=40&md5=041fc1dde5bf07967918ca6386412839
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9521
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: Seismology-Gravimetry, Royal Observatory of Belgium, Uccle, Belgium

Recommended Citation:
Van Camp M.,de Viron O.,Pajot-Métivier G.,et al. Direct measurement of evapotranspiration from a forest using a superconducting gravimeter[J]. Geophysical Research Letters,2016-01-01,43(19).
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