Author : Adler, Bianca
Publisher : KIT Scientific Publishing
Page : 272 pages
File Size : 10,35 MB
Release : 2014-09-12
Category : Physics
ISBN : 373150247X
Over complex terrain, spatial inhomogeneities of pre-convective atmospheric conditions occur due to convection and mesoscale transport processes. This thesis focuses on the identification of these processes over the mountainous island of Corsica and on the evaluation of their impact on the spatial variability of water vapour, convection-related parameters and the evolution of deep convection by means of observations.
Author : Eisenstein, Lea Andrea
Publisher : KIT Scientific Publishing
Page : 222 pages
File Size : 42,19 MB
Release : 2024-10-01
Category :
ISBN : 3731513749
Strong winds accompanying extratropical cyclones are commonly associated with various mesoscale features. This work introduces RAMEFI (RAndom-forest-based Mesoscale wind Feature Identification), an objective and flexible identification approach based on key surface characteristics to distinguish these features. RAMEFI is further applied to compile a climatology over Europe, offering a comprehensive analysis of feature frequency, distribution, and characteristics.
Author : Gruber, Simon
Publisher : KIT Scientific Publishing
Page : 282 pages
File Size : 27,68 MB
Release : 2019-03-22
Category : Physics
ISBN : 3731508966
Two aspects of anthropogenic impacts on the atmosphere are investigated using means of numerical weather prediction. A case study is conducted to estimate the impact of such artificial clouds on the incoming solar radiation at the Earth's surface with special regard to photovoltaic power production. Furthermore, simulations are performed to assess the efficacy of injecting particles into the Arctic troposphere with the aim of modifying cirrus clouds for counteracting global warming.
Author : Singh, Shweta
Publisher : KIT Scientific Publishing
Page : 198 pages
File Size : 28,60 MB
Release : 2021-08-16
Category : Science
ISBN : 3731510685
The impact of land-surface properties like vegetation, soil type, soil moisture, and the orography on the atmosphere is manifold. These features determine the evolution of the atmospheric boundary layer, convective conditions, cloud evolution and precipitation. The impact of model grid spacing and land-surface resolution on convective precipitation over heterogeneous surfaces is investigated using ICOsahedral Nonhydrostatic (ICON) simulations within the framework of the HD(CP)2 project.
Author : Caldas-Alvarez, Alberto
Publisher : KIT Scientific Publishing
Page : 262 pages
File Size : 12,32 MB
Release : 2019-10-24
Category : Science
ISBN : 3731509474
Author : Pickl, Moritz
Publisher : KIT Scientific Publishing
Page : 250 pages
File Size : 47,99 MB
Release : 2023-03-30
Category : Science
ISBN : 373151236X
Warm conveyor belts (WCBs) are weather systems that substantially modulate the large-scale extratropical circulation. As they can amplify forecast errors and project them onto the Rossby wave pattern, they are of high relevance for numerical weather prediction. This work elaborates on two aspects of WCBs in the context of ensemble forecasts: (1) sensitivities of WCBs to the representation of initial condition and model uncertainties, and (2) the role of WCBs for forecast error growth.
Author : Deetz, Konrad
Publisher : KIT Scientific Publishing
Page : 344 pages
File Size : 44,41 MB
Release : 2018-01-30
Category : Physics
ISBN : 3731507447
By using COSMO-ART, highly resolved process study simulations for 2-3 July 2016 are conducted to assess the aerosol effect on the meteorological conditions of southern West Africa. The meteorological phenomenon Evening Monsoon Flow Enhancement (EMFE) is identified as highly susceptible to the aerosol direct effect, leading to a spatial shift of the EMFE front. In a second aerosol feedback chain the aerosol variation leads to a temporal shift of the stratus-to-cumulus transition.
Author : Wandel, Jan Lucas
Publisher : KIT Scientific Publishing
Page : 256 pages
File Size : 11,83 MB
Release : 2023-05-25
Category : Science
ISBN : 3731512491
This study systematically investigates the representation of warm conveyor belts (WCBs) in large reforecast data sets of different numerical weather prediction models and evaluates the role of WCBs for the onset and life cycle of Atlantic-European weather regimes. The results emphasize the importance of accurate forecast of WCBs for sub-seasonal prediction on time scales beyond two weeks and tie the low forecast skill of blocked weather regimes over Europe to misrepresented WCBs.
Author : Sedlmeier, Katrin
Publisher : KIT Scientific Publishing
Page : 200 pages
File Size : 19,66 MB
Release : 2020-01-16
Category : Science
ISBN : 3731504766
Author : Kraut, Isabel
Publisher : KIT Scientific Publishing
Page : 196 pages
File Size : 30,75 MB
Release : 2015-08-06
Category : Physics
ISBN : 3731504057
This work addresses the interactions of aerosols, clouds and dynamics in case of a so-called Medicane. This type of cyclone occurs over the Mediterranean Sea, showing similarities to Hurricanes over the Atlantic and Pacific Ocean. Due to the high wind speed of the Medicane, a large amount of sea salt particles is emitted over the sea. This can influence the development of the Medicane, its associated clouds, and precipitation.
