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RISQuantifying the Relevance of Cyclones for Precipitation Extremes
Publisher: American Meteorological Society
Abstract: wing to the huge potential impact of precipitation extremes on society, it is important to better understand the mechanisms causing these events, and their variations with respect to a changing climate. In this study, the ...
Importance of Latent Heating in Mesocyclones for the Decay of Cold Air Outbreaks: A Numerical Process Study from the Pacific Sector of the Southern Ocean
Publisher: American Meteorological Society
Abstract: n this study the dynamical mechanisms shaping the evolution of a marine cold air outbreak (CAO) that occurred over the Ross, Amundsen, and Bellingshausen Seas in June 2010 are investigated in an isentropic framework. The ...
Potential Vorticity Diagnostics to Quantify Effects of Latent Heating in Extratropical Cyclones. Part II: Application to Idealized Climate Change Simulations
Publisher: American Meteorological Society
Abstract: AbstractIt is still debated how enhanced cloud-condensational latent heating (LH) in a warmer and moister climate may affect the dynamics of extratropical cyclones. In this study, a diagnostic method that explicitly ...
Warm Conveyor Belts in the ERA-Interim Dataset (1979–2010). Part II: Moisture Origin and Relevance for Precipitation
Publisher: American Meteorological Society
Abstract: he role of moisture for extratropical atmospheric dynamics is particularly pronounced within warm conveyor belts (WCBs), which are characterized by intense latent heat release and precipitation formation. Based on the WCB ...
Extratropical Cyclones in Idealized Simulations of Changed Climates
Publisher: American Meteorological Society
Abstract: yclones are a key element of extratropical weather and frequently lead to extreme events like wind storms and heavy precipitation. Understanding potential changes of cyclone frequency and intensity is thus essential for a ...
A Climatology of Cold Air Outbreaks and Their Impact on Air–Sea Heat Fluxes in the High-Latitude South Pacific
Publisher: American Meteorological Society
Abstract: climatology of cold air outbreaks (CAOs) in the high latitudes of the South Pacific and an analysis of the dynamical mechanisms leading to their formation are presented. Two major and distinct regions with frequent CAOs ...
QG-DL-Ekman: Dynamics of a diabatic layer in the quasi-geostrophic framework
Publisher: American Meteorological Society
The Role of Extratropical Cyclones and Fronts for Southern Ocean Freshwater Fluxes
Publisher: American Meteorological Society
Abstract: n this study, the important role of extratropical cyclones and fronts for the atmospheric freshwater flux over the Southern Ocean is analyzed. Based on the Interim ECMWF Re-Analysis (ERA-Interim), the freshwater flux ...
Clustering of Regional-Scale Extreme Precipitation Events in Southern Switzerland
Publisher: American Meteorological Society
Abstract: emporal clustering of extreme precipitation events on subseasonal time scales is of crucial importance for the formation of large-scale flood events. Here, the temporal clustering of regional-scale extreme precipitation ...