globalchange  > 气候变化事实与影响
DOI: 10.5194/hess-21-3199-2017
Scopus记录号: 2-s2.0-85021691428
论文题名:
Monitoring soil moisture from middle to high elevation in Switzerland: Set-up and first results from the SOMOMOUNT network
作者: Pellet C; , Hauck C
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2017
卷: 21, 期:6
起始页码: 3199
结束页码: 3220
语种: 英语
Scopus关键词: Landforms ; Meteorology ; Moisture ; Moisture control ; Soil moisture ; Soils ; Altitudinal distributions ; Calibration procedure ; Energy and water balance ; Freezing and thawing ; Frequency-domain sensor ; Soil moisture monitoring ; Technical challenges ; Time domain reflectometry ; Soil surveys ; air-soil interaction ; alpine environment ; elevation ; energy budget ; freeze-thaw cycle ; instrumentation ; mountain environment ; network analysis ; precipitation (climatology) ; seasonal variation ; soil moisture ; time domain reflectometry ; water budget ; Jura Mountains ; Switzerland
英文摘要: Besides its important role in the energy and water balance at the soil-atmosphere interface, soil moisture can be a particular important factor in mountain environments since it influences the amount of freezing and thawing in the subsurface and can affect the stability of slopes.

In spite of its importance, the technical challenges and its strong spatial variability usually prevents soil moisture from being measured operationally at high and/or middle altitudes. This study describes the new Swiss soil moisture monitoring network SOMOMOUNT (soil moisture in mountainous terrain) launched in 2013. It consists of six entirely automated soil moisture stations distributed along an altitudinal gradient between the Jura Mountains and the Swiss Alps, ranging from 1205 to 3410ĝ€mĝ€a.s.l. in elevation. In addition to the standard instrumentation comprising frequency domain sensor and time domain reflectometry (TDR) sensors along vertical profiles, soil probes and meteorological data are available at each station.

In this contribution we present a detailed description of the SOMOMOUNT instrumentation and calibration procedures. Additionally, the liquid soil moisture (LSM) data collected during the first 3 years of the project are discussed with regard to their soil type and climate dependency as well as their altitudinal distribution. The observed elevation dependency of LSM is found to be non-linear, with an increase of the mean annual values up to ĝ1/4 ĝ€2000ĝ€mĝ€a.s.l. followed by a decreasing trend towards higher elevations. This altitude threshold marks the change between precipitation-/evaporation-controlled and frost-affected LSM regimes. The former is characterized by high LSM throughout the year and minimum values in summer, whereas the latter typically exhibits long-lasting winter minimum LSM values and high variability during the summer. © Author(s) 2017.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79135
Appears in Collections:气候变化事实与影响

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作者单位: Department of Geosciences, University of Fribourg, Fribourg, Switzerland

Recommended Citation:
Pellet C,, Hauck C. Monitoring soil moisture from middle to high elevation in Switzerland: Set-up and first results from the SOMOMOUNT network[J]. Hydrology and Earth System Sciences,2017-01-01,21(6)
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