An Optimized Snowmelt Lysimeter System for Monitoring Melt Rates and Collecting Samples for Stable Water Isotope Analysis
dc.contributor.author
Rücker, Andrea
dc.contributor.author
Zappa, Massimiliano
dc.contributor.author
Boss, Stefan
dc.contributor.author
von Freyberg, Jana
dc.date.accessioned
2018-12-11T11:11:35Z
dc.date.available
2018-12-11T10:37:22Z
dc.date.available
2018-12-11T11:11:35Z
dc.date.issued
2019-03
dc.identifier.issn
0042-790X
dc.identifier.issn
1338-4333
dc.identifier.other
10.2478/johh-2018-0007
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/309952
dc.identifier.doi
10.3929/ethz-b-000309952
dc.description.abstract
The contribution of snow meltwater to catchment streamflow can be quantified through hydrograph separation analyses for which stable water isotopes (18O, 2H) are used as environmental tracers. For this, the spatial and temporal variability of the isotopic composition of meltwater needs to be captured by the sampling method. This study compares an optimized snowmelt lysimeter system and an unheated precipitation collector with focus on their ability to capture snowmelt rates and the isotopic composition of snowmelt. The snowmelt lysimeter system consists of three individual unenclosed lysimeters at ground level with a surface of 0.14 m2 each. The unheated precipitation collector consists of a 30 cm-long, extended funnel with its orifice at 2.3 m above ground. Daily snowmelt samples were collected with both systems during two snowfall-snowmelt periods in 2016. The snowmelt lysimeter system provided more accurate measurements of natural melt rates and allowed for capturing the small-scale variability of snowmelt process at the plot scale, such as lateral meltwater flow from the surrounding snowpack. Because of the restricted volume of the extended funnel, daily melt rates from the unheated precipitation collector were up to 43% smaller compared to the snowmelt lysimeter system. Overall, both snowmelt collection methods captured the general temporal evolution of the isotopic signature in snowmelt.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
De Gruyter
dc.rights.uri
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject
Snowmelt lysimeter
en_US
dc.subject
Snowmelt collection
en_US
dc.subject
Snowmelt rate
en_US
dc.subject
Stable water isotopes
en_US
dc.title
An Optimized Snowmelt Lysimeter System for Monitoring Melt Rates and Collecting Samples for Stable Water Isotope Analysis
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
dc.date.published
2018-11-07
ethz.journal.title
Journal of Hydrology and Hydromechanics
ethz.journal.volume
67
en_US
ethz.journal.issue
1
en_US
ethz.pages.start
20
en_US
ethz.pages.end
31
en_US
ethz.size
12 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.nebis
ethz.publication.place
Berlin
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02722 - Institut für Terrestrische Oekosysteme / Institute of Terrestrial Ecosystems::03798 - Kirchner, James W. (emeritus) / Kirchner, James W. (emeritus)
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02722 - Institut für Terrestrische Oekosysteme / Institute of Terrestrial Ecosystems::03798 - Kirchner, James W. (emeritus) / Kirchner, James W. (emeritus)
en_US
ethz.date.deposited
2018-12-11T10:37:34Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2018-12-11T11:11:50Z
ethz.rosetta.lastUpdated
2024-02-02T06:48:31Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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