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dc.contributor.author
Wever, Nander
dc.contributor.author
Schmid, Lino
dc.contributor.author
Heilig, Achim
dc.contributor.author
Eisen, Olaf
dc.contributor.author
Fierz, Charles
dc.contributor.author
Lehning, Michael
dc.date.accessioned
2019-05-14T09:47:33Z
dc.date.available
2017-06-11T23:00:07Z
dc.date.available
2019-05-14T09:47:33Z
dc.date.issued
2015
dc.identifier.issn
1994-0416
dc.identifier.issn
1994-0424
dc.identifier.other
10.5194/tcd-9-2655-2015
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/110175
dc.identifier.doi
10.3929/ethz-b-000110175
dc.description.abstract
The widely used detailed SNOWPACK model hasundergone constant development over the years. A notablerecent extension is the introduction of a Richards equation(RE) solver as an alternative for the bucket-type approachfor describing water transport in the snow and soil layers.In addition, continuous updates of snow settling and newsnow density parameterizations have changed model behav-ior. This study presents a detailed evaluation of model per-formance against a comprehensive multiyear data set fromWeissfluhjoch near Davos, Switzerland. The data set is col-lected by automatic meteorological and snowpack measure-ments and manual snow profiles. During the main win-ter season, snow height (RMSE:<4.2 cm), snow waterequivalent (SWE, RMSE:<40 mm w.e.), snow tempera-ture distributions (typical deviation with measurements:<1.0◦C) and snow density (typical deviation with observa-tions:<50 kg m−3) as well as their temporal evolution arewell simulated in the model and the influence of the two wa-ter transport schemes is small. The RE approach reproducesinternal differences over capillary barriers but fails to predictenough grain growth since the growth routines have been cal-ibrated using the bucket scheme in the original SNOWPACKmodel. However, the agreement in both density and grainsize is sufficient to parameterize the hydraulic properties suc-cessfully. In the melt season, a pronounced underestimationof typically 200 mm w.e. in SWE is found. The discrepan-cies between the simulations and the field data are generallylarger than the differences between the two water transport schemes. Nevertheless, the detailed comparison of the inter-nal snowpack structure shows that the timing of internal tem-perature and water dynamics is adequately and better repre-sented with the new RE approach when compared to the con-ventional bucket scheme. On the contrary, the progress of themeltwater front in the snowpack as detected by radar and thetemporal evolution of the vertical distribution of melt formsin manually observed snow profiles do not support this con-clusion. This discrepancy suggests that the implementationof RE partly mimics preferential flow effects.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Copernicus Publications
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/3.0/
dc.title
Verification of the multi-layer SNOWPACK model with different water transport schemes
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 3.0 Unported
dc.date.published
2015-04-30
ethz.journal.title
The Cryosphere
ethz.journal.volume
9
en_US
ethz.journal.issue
2
en_US
ethz.pages.start
2655
en_US
ethz.pages.end
2707
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.notes
.
en_US
ethz.identifier.nebis
010201633
ethz.publication.place
Göttingen
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02506 - Institut für Geophysik / Institute of Geophysics::03953 - Robertsson, Johan / Robertsson, Johan
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02506 - Institut für Geophysik / Institute of Geophysics::03953 - Robertsson, Johan / Robertsson, Johan
ethz.date.deposited
2017-06-11T23:00:17Z
ethz.source
ECIT
ethz.identifier.importid
imp593653ef2ae5b77037
ethz.ecitpid
pub:171357
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-14T12:21:39Z
ethz.rosetta.lastUpdated
2019-05-14T09:47:47Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
ctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.atitle=Verification%20of%20the%20multi-layer%20SNOWPACK%20model%20with%20different%20water%20transport%20schemes&amp;rft.jtitle=The%20Cryosphere&amp;rft.date=2015&amp;rft.volume=9&amp;rft.issue=2&amp;rft.spage=2655&amp;rft.epage=2707&amp;rft.issn=1994-0416&amp;1994-0424&amp;rft.au=Wever,%20Nander&amp;Schmid,%20Lino&amp;Heilig,%20Achim&amp;Eisen,%20Olaf&amp;Fierz,%20Charles&amp;rft.genre=article&amp;
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