Journal: Meteorologische Zeitschrift

Abbreviation

Meteorol. Z.

Publisher

Gebrüder Borntraeger

Journal Volumes

ISSN

0941-2948
1610-1227

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Publications 1 - 10 of 43
  • Variation of the aerosol stratification over the Rhine Valley during Foehn development
    Item type: Conference Paper
    Frioud, Max; Mitev, Valentin; Matthey, Renaud; et al. (2004)
    Meteorologische Zeitschrift
  • Dynamics of a Puelche foehn event in the Andes
    Item type: Journal Article
    Beusch, Lea; Raveh-Rubin, Shira; Sprenger, Michael; et al. (2018)
    Meteorologische Zeitschrift
    In this numerical modelling study, we investigate a Puelche foehn event (25–26 March 2014) in the southern Andes – a region with sparse observations. The synoptic environment as well as the mesoscale structure and the dynamics of the easterly wind are examined with European Centre for Medium-Range Weather Forecasts (ECMWF) analyses and a simulation with the mesoscale non-hydrostatic limited-area weather prediction model COSMO with a grid spacing of 2.2 km.The large-scale synoptic situation leading to this Puelche event is characterized by a mid-tropospheric cut-off low above the mountain range, the formation of a coastal surface low, as well as high pressure extending over the southern Andes. Easterly winds extend throughout the entire troposphere, indicative of a deep foehn flow. In the free troposphere, the easterlies are geostrophically balanced and develop in association with increasing pressure to the south. In contrast, within the planetary boundary layer, the easterly winds occur predominantly due to an increasing cross-range large-scale pressure gradient with only a weak geostrophic component. Kinematic trajectories indicate that a significant part of the Puelche air mass originates from above an inversion on the upstream side of the Andes. Some air parcels, however, ascend on the upstream side to crest height as the boundary layer deepens during daytime and/or flow through gaps across the mountain range. Hence, this Puelche event shares characteristics of both a blocked and a non-blocked foehn type.
  • Variability of large-scale atmospheric circulation indices for the northern hemisphere during the past 100 years
    Item type: Journal Article
    Brönnimann, Stefan; Stickler, Alexander; Griesser, Thomas; et al. (2009)
    Meteorologische Zeitschrift
  • Perceiving, explaining, and observing climatic changes
    Item type: Journal Article
    Bodenmann, Tom; Brönnimann, Stefan; Hirsch Hadorn, Gertrude; et al. (2011)
    Meteorologische Zeitschrift
  • Evaluating the suitability of the SWAN/COSMO-2 model system to simulate short-crested surface waves for a narrow lake with complex bathymetry
    Item type: Journal Article
    Graf, Michael; Sprenger, Michael; Lohmann, Ulrike; et al. (2013)
    Meteorologische Zeitschrift
  • International Conference on Alpine Meteorology and MAP Meeting 19-23 May 2003, Brig, Switzerland
    Item type: Conference Paper
    Rossa, Andrea; Schwierz, Cornelia; Furger, Markus (2004)
    Meteorologische Zeitschrift
  • 20th anniversary of the Meteorologische Zeitschrift
    Item type: Journal Article
    Emeis, Stephan; Richner, Hans; Wulfmeyer, Volker (2012)
    Meteorologische Zeitschrift
  • Analysis of uncertainty in large scale climate change projections over Europe
    Item type: Journal Article
    Prein, Andreas F.; Gobiet, Andreas; Truhetz, Heimo (2011)
    Meteorologische Zeitschrift
    Accounting for uncertainty is a major challenge in current climate research and huge efforts are made to quantify and reduce uncertainty in climate projections. In this study the basic resource for most climate change impact investigations worldwide, the CMIP3 multi-model dataset, is analyzed with respect to performance under present climate, climate change, uncertainty, and the major sources of uncertainty over Europe. Eight near surface and upper air parameters are considered over two domains centered over central Europe for the mid and end of the 21th century. The performance analysis of the GCMs showed that it is crucial to regard upper air parameters in model rating and that evaluating just near surface parameters can lead to overoptimistic assessment of model performance. Regarding climate change, air temperature, geopotential height, and specific humidity are consistently projected to increase by all CMIP3 simulations. Eastward wind is projected to increase by most simulations, while for pressure, precipitation, and northward wind, the sign of change is inconsistent between the simulations and varies with season. The dominating source of uncertainty is the model uncertainty which roughly contributes between 50 % and 85 % to total uncertainty. Internal variability of the climate system accounts for 10 % to 20 % (in 30-year averages), while emission scenario uncertainty is nearly negligible until 2050 and becomes important only for temperature, specific humidity, and geopotential height at the end of the 21th century (up to 35 %). Uncertainties are generally larger on the smaller of the two domains, but the relative contributions of the uncertainty components as well as the annual cycle of the climate change are similar in both domains. The results indicate that studies focusing on downscaling, regional climate change, and regional climate change impacts should be based on a carefully selected set of GCMs in order to avoid undersampling uncertainty. It is by far more relevant to reasonably capture model uncertainty than emission scenario uncertainty. This is particularly true for the first half of the 21th century and particularly important of more uncertain parameters like precipitation.
  • The early twentieth century warm period in the European Arctic
    Item type: Journal Article
    Grant, Andrea N.; Brönnimann, Stefan; Ewen, Tracy; et al. (2009)
    Meteorologische Zeitschrift
  • International Conference on Alpine Meteorology and MAP Meeting 19-23 May 2003, Brig, Switzerland
    Item type: Journal Article
    Furger, Markus; Rossa, Andrea; Schwierz, Cornelia (2004)
    Meteorologische Zeitschrift
Publications 1 - 10 of 43