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dc.contributor.authorReuder, Joachimeng
dc.contributor.authorAblinger, Markuseng
dc.contributor.authorÁgústsson, Hálfdáneng
dc.contributor.authorBrisset, Pascaleng
dc.contributor.authorBrynjólfsson, Sveinneng
dc.contributor.authorGarhammer, Markuseng
dc.contributor.authorJóhannesson, Tómaseng
dc.contributor.authorJonassen, Marius O.eng
dc.contributor.authorKühnel, Rafaeleng
dc.contributor.authorLämmlein, Stephaneng
dc.contributor.authorde Lange, Toreng
dc.contributor.authorLindenberg, Christianeng
dc.contributor.authorMalardel, Sylvieeng
dc.contributor.authorMayer, Stephanieeng
dc.contributor.authorMüller, Martineng
dc.contributor.authorÓlafsson, Haraldureng
dc.contributor.authorRögnvaldsson, Ólafureng
dc.contributor.authorSchäper, Wolfgangeng
dc.contributor.authorSpengler, Thomaseng
dc.contributor.authorZängl, Günthereng
dc.contributor.authorEgger, Josepheng
dc.identifier.issn1436-5065 (essn)eng
dc.description.abstractThe FLOHOF field campaign took place in the period July 21 to August 24, 2007 on and in the surroundings of Hofsjökull glacier in Central Iceland. During the campaign, 18 automatic weather stations (AWS) recording temperature, humidity, wind speed, wind direction, pressure, and precipitation were deployed on and around the glacier. In addition, atmospheric soundings were performed N and S of Hofsjökull by a tethered balloon, pilot balloons, and two unmanned aerial systems (UAS). An energy balance station, consisting of a net radiometer and an eddy correlation flux measurement station, has also been installed. This paper describes the experimental setup of the campaign and presents first results of the data analysis with respect to transience of mountain-induced gravity waves, the extension of katabatic winds into the surrounding of the glacier, the occurrence of katabatic microfronts, and report on novel approaches to probe the vertical structure of the atmospheric boundary layer by UAS. The observed pressure perturbations related to transient gravity wave activity due to changing inflow conditions were between −2 and 2 hPa in general, with positive values upstream and negative values downstream. Differential heating of the glacier and its surrounding is triggering daytime katabatic flow from the glacier into its surrounding. During the campaign, those katabatic winds typically reached out 4–7 km from the edge of the glacier. During late night in clear sky conditions, frontal-like microstructures have been observed frequently with typical repetition times in the order of 30–60 min indicating the interaction of large-scale synoptic and nighttime katabatic density flows close to the ground. The first research application of the newly developed small unmanned meteorological observer proved the applicability of the system for atmospheric boundary layer research by successfully profiling the atmosphere up to 3.5 km above ground.eng
dc.publisherSpringer Viennaeng
dc.rightsAttribution CC BYeng
dc.titleFLOHOF 2007: an overview of the mesoscale meteorological field campaign at Hofsjökull, Central Icelandeng
dc.typePeer reviewedeng
dc.typeJournal articleeng
dc.rights.holderThe Author(s) 2011. This article is published with open access at
bora.peerreviewedPeer reviewedeng
bora.journalTitleMeteorology and Atmospheric Physicseng

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