Separating the Aerosol Effect in Case of a "Medicane"
Title | Separating the Aerosol Effect in Case of a "Medicane" PDF eBook |
Author | Kraut, Isabel |
Publisher | KIT Scientific Publishing |
Pages | 196 |
Release | 2015-08-06 |
Genre | 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.
Assessing the Aerosol Impact on Southern West African Clouds and Atmospheric Dynamics
Title | Assessing the Aerosol Impact on Southern West African Clouds and Atmospheric Dynamics PDF eBook |
Author | Deetz, Konrad |
Publisher | KIT Scientific Publishing |
Pages | 344 |
Release | 2018-01-30 |
Genre | 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.
Atmospheric Moisture Effects on Deep Convection in the Western Mediterranean
Title | Atmospheric Moisture Effects on Deep Convection in the Western Mediterranean PDF eBook |
Author | Caldas-Alvarez, Alberto |
Publisher | KIT Scientific Publishing |
Pages | 262 |
Release | 2019-10-24 |
Genre | Science |
ISBN | 3731509474 |
Contrails and Climate Engineering - Process Studies on Natural and Artificial High-Level Clouds and Their Impact on the Radiative Fluxes
Title | Contrails and Climate Engineering - Process Studies on Natural and Artificial High-Level Clouds and Their Impact on the Radiative Fluxes PDF eBook |
Author | Gruber, Simon |
Publisher | KIT Scientific Publishing |
Pages | 282 |
Release | 2019-03-22 |
Genre | 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.
Near future changes of compound extreme events from an ensemble of regional climate simulations
Title | Near future changes of compound extreme events from an ensemble of regional climate simulations PDF eBook |
Author | Sedlmeier, Katrin |
Publisher | KIT Scientific Publishing |
Pages | 200 |
Release | 2020-01-16 |
Genre | Science |
ISBN | 3731504766 |
Convective precipitation simulated with ICON over heterogeneous surfaces in dependence on model and land-surface resolution
Title | Convective precipitation simulated with ICON over heterogeneous surfaces in dependence on model and land-surface resolution PDF eBook |
Author | Singh, Shweta |
Publisher | KIT Scientific Publishing |
Pages | 198 |
Release | 2021-08-16 |
Genre | 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.
Representation of warm conveyor belts in sub-seasonal forecast models and the link to Atlantic-European weather regimes
Title | Representation of warm conveyor belts in sub-seasonal forecast models and the link to Atlantic-European weather regimes PDF eBook |
Author | Wandel, Jan Lucas |
Publisher | KIT Scientific Publishing |
Pages | 256 |
Release | 2023-05-25 |
Genre | 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.