Duration, rarity, affected area, and weather types associated with extreme precipitation in the Ore Mountains (Erzgebirge) region, Central Europe

2017 ◽  
Vol 37 (12) ◽  
pp. 4463-4477 ◽  
Author(s):  
Jana Minářová ◽  
Miloslav Müller ◽  
Alain Clappier ◽  
Stephanie Hänsel ◽  
Andreas Hoy ◽  
...  
Keyword(s):  
Central Europe ◽  
Extreme Precipitation ◽  
Weather Types ◽  
Affected Area

Near future changes of extreme precipitation over complex terrain in Central Europe derived from high resolution RCM ensemble simulations

2012 ◽  
Vol 33 (8) ◽  
pp. 1964-1977 ◽  
Author(s):  
Hendrik Feldmann ◽  
Gerd Schädler ◽  
Hans-Jürgen Panitz ◽  
Christoph Kottmeier
Keyword(s):  
High Resolution ◽  
Central Europe ◽  
Extreme Precipitation ◽  
Complex Terrain ◽  
Ensemble Simulations ◽  
Near Future

scholarly journals Climatology of Vb-cyclones, physical mechanisms and their impact on extreme precipitation over Central Europe

2015 ◽  
Vol 6 (1) ◽  
pp. 907-941
Author(s):  
M. Messmer ◽  
J. J. Gómez-Navarro ◽  
C. C. Raible
Keyword(s):  
Central Europe ◽  
Extreme Precipitation ◽  
Large Scale ◽  
Heavy Precipitation ◽  
Western Mediterranean ◽  
Physical Mechanisms ◽  
Detection And Tracking ◽  
The Alps ◽  
Precipitation Events ◽  
Thermodynamic Processes

Abstract. Cyclones, which develop over the western Mediterranean and move northeastward are a major source of extreme weather and known to be responsible for heavy precipitation over Central Europe and the Alps. As the relevant processes triggering these so-called Vb-events and their impact on extreme precipitation are not yet fully understood, this study focusses on gaining insight into the dynamics of past events. For this, a cyclone detection and tracking tool is applied to the ERA-Interim reanalysis (1979–2013) to identify prominent Vb-situations. Precipitation in the ERA-Interim and the E-OBS datasets is used to evaluate case-to-case precipitation amounts and to assess consistency between the two datasets. Both datasets exhibit high variability in precipitation amounts among different Vb-events. While only 23 % of all Vb-events are associated with extreme precipitation, around 15 % of all extreme precipitation days (99 percentile) over the Alpine region are induced by Vb-events, although Vb-cyclones are rare events (2.3 per year). To obtain a better understanding of the variability within Vb-events, the analysis of the 10 heaviest and lowest precipitation Vb-events reveals noticeable differences in the state of the atmosphere. These differences are most pronounced in the geopotential height and potential vorticity field, indicating a much stronger cyclone for heavy precipitation events. The related differences in wind direction are responsible for the moisture transport around the Alps and the orographical lifting along the Alps. These effects are the main reasons for a disastrous outcome of Vb-events, and consequently are absent in the Vb-events associated with low precipitation. Hence, our results point out that heavy precipitation related to Vb-events is mainly related to large-scale dynamics rather than to thermodynamic processes.

scholarly journals Climatic Changes and Their Relation to Weather Types in a Transboundary Mountainous Region in Central Europe

2018 ◽  
Vol 10 (6) ◽  
pp. 2049 ◽  
Author(s):  
Andreas Hoy ◽  
Nils Feske ◽  
Petr Štěpánek ◽  
Petr Skalák ◽  
Andreas Schmitt ◽  
...  
Keyword(s):  
Central Europe ◽  
Climatic Changes ◽  
Mountainous Region ◽  
Weather Types

scholarly journals Influence of solar variability on the occurrence of central European weather types from 1763 to 2009

2017 ◽  
Vol 13 (9) ◽  
pp. 1199-1212 ◽  
Author(s):  
Mikhaël Schwander ◽  
Marco Rohrer ◽  
Stefan Brönnimann ◽  
Abdul Malik
Keyword(s):  
Solar Activity ◽  
Solar Cycle ◽  
Central Europe ◽  
Reanalysis Data ◽  
Activity Level ◽  
Solar Variability ◽  
High Solar Activity ◽  
Weather Types ◽  
Daily Weather ◽  
The Impact

Abstract. The impact of solar variability on weather and climate in central Europe is still not well understood. In this paper we use a new time series of daily weather types to analyse the influence of the 11-year solar cycle on the tropospheric weather of central Europe. We employ a novel, daily weather type classification over the period 1763–2009 and investigate the occurrence frequency of weather types under low, moderate, and high solar activity level. Results show a tendency towards fewer days with westerly and west-southwesterly flow over central Europe under low solar activity. In parallel, the occurrence of northerly and easterly types increases. For the 1958–2009 period, a more detailed view can be gained from reanalysis data. Mean sea level pressure composites under low solar activity also show a reduced zonal flow, with an increase of the mean blocking frequency between Iceland and Scandinavia. Weather types and reanalysis data show that the 11-year solar cycle influences the late winter atmospheric circulation over central Europe with colder (warmer) conditions under low (high) solar activity.

scholarly journals Climatology of Vb cyclones, physical mechanisms and their impact on extreme precipitation over Central Europe

2015 ◽  
Vol 6 (2) ◽  
pp. 541-553 ◽  
Author(s):  
M. Messmer ◽  
J. J. Gómez-Navarro ◽  
C. C. Raible
Keyword(s):  
Central Europe ◽  
Extreme Precipitation ◽  
Large Scale ◽  
Heavy Precipitation ◽  
Western Mediterranean ◽  
Data Sets ◽  
Detection And Tracking ◽  
Northern Side ◽  
The Alps ◽  
Obs Data

Abstract. Cyclones, which develop over the western Mediterranean and move northeastward are a major source of extreme weather and known to be responsible for heavy precipitation over the northern side of the Alpine range and Central Europe. As the relevant processes triggering these so-called Vb events and their impact on extreme precipitation are not yet fully understood, this study focuses on gaining insight into the dynamics of past events. For this, a cyclone detection and tracking tool is applied to the ERA-Interim reanalysis (1979–2013) to identify prominent Vb situations. Precipitation in the ERA-Interim and the E-OBS data sets is used to evaluate case-to-case precipitation amounts and to assess consistency between the two data sets. Both data sets exhibit high variability in precipitation amounts among different Vb events. While only 23 % of all Vb events are associated with extreme precipitation, around 15 % of all extreme precipitation days (99 percentile) over the northern Alpine region and Central Europe are induced by Vb events, although Vb cyclones are rare events (2.3 per year). To obtain a better understanding of the variability within Vb events, the analysis of the 10 heaviest and lowest precipitation Vb events reveals noticeable differences in the state of the atmosphere. These differences are most pronounced in the geopotential height and potential vorticity field, indicating a much stronger cyclone for heavy precipitation events. The related differences in wind direction are responsible for the moisture transport around the Alps and the orographical lifting along the northern slopes of the Alps. These effects are the main reasons for a disastrous outcome of Vb events, and consequently are absent in the Vb events associated with low precipitation. Hence, our results point out that heavy precipitation related to Vb events is mainly related to large-scale dynamics rather than to thermodynamic processes.

North Atlantic Oscillation influence and weather types associated with winter total and extreme precipitation events in Spain

2009 ◽  
Vol 94 (4) ◽  
pp. 675-683 ◽  
Author(s):  
S. Queralt ◽  
E. Hernández ◽  
D. Barriopedro ◽  
D. Gallego ◽  
P. Ribera ◽  
...  
Keyword(s):  
North Atlantic Oscillation ◽  
North Atlantic ◽  
Extreme Precipitation ◽  
Weather Types ◽  
Extreme Precipitation Events ◽  
Precipitation Events

scholarly journals Influence of solar variability on the occurrence of Central European weather types from 1763 to 2009

2017 ◽  
Author(s):  
Mikhaël Schwander ◽  
Marco Rohrer ◽  
Stefan Brönnimann ◽  
Abdul Malik
Keyword(s):  
Solar Activity ◽  
Solar Cycle ◽  
Central Europe ◽  
Reanalysis Data ◽  
Activity Level ◽  
Solar Variability ◽  
High Solar Activity ◽  
Weather Types ◽  
Daily Weather ◽  
The Impact

Abstract. The impact of solar variability on weather and climate in Central Europe is still not well understood. In this paper we use a new time series of daily weather types to analyse the influence of the 11-year solar cycle on the tropospheric weather of Central Europe. We employ a novel, daily weather type classification over the period 1763–2009 and investigate the occurrence frequency of weather types under low, moderate and high solar activity level. Results show a tendency towards fewer days with westerly and west south-westerly flow over Central Europe under low solar activity. In parallel, the occurrence of northerly and easterly types increases. Changes are consistent across different sub-periods. For the 1958–2009 period, a more detailed view can be gained from reanalysis data. Mean sea level pressure composites under low solar activity also show a reduced zonal flow, with an increase of the mean blocking frequency between Iceland and Scandinavia. Weather types and reanalysis data show that the 11-year solar cycle influences the late winter atmospheric circulation over Central Europe with colder (warmer) conditions under low (high) solar activity. Model simulations used for a comparison do not reproduce the imprint of the 11-year solar cycle found in the reanalyses data.

scholarly journals Climatology and change of extreme precipitation events in Taiwan based on weather types

2019 ◽  
Vol 39 (14) ◽  
pp. 5351-5366 ◽  
Author(s):  
Yi‐chao Wu ◽  
S.‐Y. Simon Wang ◽  
Yi‐Chiang Yu ◽  
Chu‐Ying Kung ◽  
An‐Hsiang Wang ◽  
...  
Keyword(s):  
Extreme Precipitation ◽  
Weather Types ◽  
Extreme Precipitation Events ◽  
Precipitation Events
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