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dc.contributor.author
Keller, Michael
dc.contributor.author
Fuhrer, Oliver
dc.contributor.author
Schmidli, Juerg
dc.contributor.author
Stengel, Martin
dc.contributor.author
Stöckli, Reto
dc.contributor.author
Schär, Christoph
dc.date.accessioned
2019-10-11T14:25:27Z
dc.date.available
2017-06-11T23:37:38Z
dc.date.available
2019-10-11T14:25:27Z
dc.date.issued
2016-05-09
dc.identifier.issn
0941-2948
dc.identifier.issn
1610-1227
dc.identifier.other
10.1127/metz/2015/0715
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/111479
dc.identifier.doi
10.3929/ethz-b-000111479
dc.description.abstract
Diurnal moist convection is an important element of summer precipitation over Central Europe and the Alps. It is poorly represented in models using parameterized convection. In this study, we investigate the diurnal cycle of convection during 11 days in June 2007 using the COSMO model. The numerical simulations are compared with satellite measurements of GERB and SEVIRI, AVHRR satellite-based cloud properties and ground-based precipitation and temperature measurements. The simulations use horizontal resolutions of 12 km (convection-parameterizing model, CPM) and 2 km (convection-resolving model, CRM) and either a one-moment microphysics scheme (1M) or a two-moment microphysics scheme (2M).They are conducted for a computational domain that covers an extended Alpine area from Northern Italy to Northern Germany. The CPM with 1M exhibits a significant overestimation of high cloud cover. This results in a compensation effect in the top of the atmosphere energy budget due to an underestimation of outgoing longwave radiation (OLR) and an overestimation of reflected solar radiation (RSR). The CRM reduces high cloud cover and improves the OLR bias from a domain mean of −20.1 to −2.6 W/m2. When using 2M with ice sedimentation in the CRM, high cloud cover is further reduced. The stronger diurnal cycle of high cloud cover and associated convection over the Alps, compared to less mountainous regions, is well represented by the CRM but underestimated by the CPM. Despite substantial differences in high cloud cover, the use of a 2M has no significant impact on the diurnal cycle of precipitation. Furthermore, a negative mid-level cloud bias is found for all simulations.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Schweizerbart
en_US
dc.rights.uri
http://creativecommons.org/licenses/by-nc/3.0/
dc.subject
convection
en_US
dc.subject
diurnal cycle
en_US
dc.subject
Alps
en_US
dc.subject
convection-resolving
en_US
dc.subject
satellite observations
en_US
dc.subject
cloud validation
en_US
dc.title
Evaluation of convection-resolving models using satellite data: The diurnal cycle of summer convection over the Alps
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution-NonCommercial 3.0 Unported
dc.date.published
2015-12-03
ethz.journal.title
Meteorologische Zeitschrift
ethz.journal.volume
25
en_US
ethz.journal.issue
2
en_US
ethz.journal.abbreviated
Meteorol. Z. (Braunschw.)
ethz.pages.start
165
en_US
ethz.pages.end
179
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.identifier.nebis
000637360
ethz.publication.place
Stuttgart
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::02717 - Institut für Atmosphäre und Klima / Inst. Atmospheric and Climate Science::03360 - Schär, Christoph / Schär, Christoph
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02717 - Institut für Atmosphäre und Klima / Inst. Atmospheric and Climate Science::03360 - Schär, Christoph / Schär, Christoph
ethz.date.deposited
2017-06-11T23:38:24Z
ethz.source
ECIT
ethz.identifier.importid
imp593654061d19d79929
ethz.ecitpid
pub:172891
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-15T01:54:08Z
ethz.rosetta.lastUpdated
2019-10-11T14:25:45Z
ethz.rosetta.versionExported
true
ethz.COinS
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