Arctic Mixed Phase Clouds Macro And Microphysical Insights With A Numerical Model

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Arctic Mixed Phase Clouds Macro And Microphysical Insights With A Numerical Model

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Author : Loewe, Katharina
language : en
Publisher: KIT Scientific Publishing
Release Date : 2017-09-15

Arctic Mixed Phase Clouds Macro And Microphysical Insights With A Numerical Model written by Loewe, Katharina and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-09-15 with Physics categories.

This work provides new insights into macro- and microphysical properties of Arctic mixed-phase clouds: first, by comparing semi-idealized large eddy simulations with observations; second, by dissecting the influences of different surface types and boundary layer structures on Arctic mixed- phase clouds; third, by elucidating the dissipation process; and finally by analyzing the main microphysical processes inside Arctic mixed-phase clouds.

Arctic Mixed Phase Clouds

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Author : Katharina Loewe
language : en
Publisher:
Release Date : 2020-10-09

Arctic Mixed Phase Clouds written by Katharina Loewe and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-10-09 with Science categories.

This work provides new insights into macro- and microphysical properties of Arctic mixed-phase clouds: first, by comparing semi-idealized large eddy simulations with observations; second, by dissecting the influences of different surface types and boundary layer structures on Arctic mixed- phase clouds; third, by elucidating the dissipation process; and finally by analyzing the main microphysical processes inside Arctic mixed-phase clouds. This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.

Assessing The Aerosol Impact On Southern West African Clouds And Atmospheric Dynamics

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Author : Deetz, Konrad
language : en
Publisher: KIT Scientific Publishing
Release Date : 2018-01-30

Assessing The Aerosol Impact On Southern West African Clouds And Atmospheric Dynamics written by Deetz, Konrad and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-01-30 with Physics categories.

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.

Convective Precipitation Simulated With Icon Over Heterogeneous Surfaces In Dependence On Model And Land Surface Resolution

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Author : Singh, Shweta
language : en
Publisher: KIT Scientific Publishing
Release Date : 2021-08-16

Convective Precipitation Simulated With Icon Over Heterogeneous Surfaces In Dependence On Model And Land Surface Resolution written by Singh, Shweta and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-08-16 with Science categories.

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

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Author : Wandel, Jan Lucas
language : en
Publisher: KIT Scientific Publishing
Release Date : 2023-05-25

Representation Of Warm Conveyor Belts In Sub Seasonal Forecast Models And The Link To Atlantic European Weather Regimes written by Wandel, Jan Lucas and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-05-25 with Science categories.

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.

Contrails And Climate Engineering Process Studies On Natural And Artificial High Level Clouds And Their Impact On The Radiative Fluxes

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Author : Gruber, Simon
language : en
Publisher: KIT Scientific Publishing
Release Date : 2019-03-22

Contrails And Climate Engineering Process Studies On Natural And Artificial High Level Clouds And Their Impact On The Radiative Fluxes written by Gruber, Simon and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-03-22 with Physics categories.

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.

Objective Identification And Climatology Of Mesoscale High Wind Features Within Extratropical Cyclones

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Author : Eisenstein, Lea Andrea
language : en
Publisher: KIT Scientific Publishing
Release Date : 2024-10-01

Objective Identification And Climatology Of Mesoscale High Wind Features Within Extratropical Cyclones written by Eisenstein, Lea Andrea and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-10-01 with categories.

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.

Atmospheric Moisture Effects On Deep Convection In The Western Mediterranean

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Author : Caldas-Alvarez, Alberto
language : en
Publisher: KIT Scientific Publishing
Release Date : 2019-10-24

Atmospheric Moisture Effects On Deep Convection In The Western Mediterranean written by Caldas-Alvarez, Alberto and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-10-24 with Science categories.

Near Future Changes Of Compound Extreme Events From An Ensemble Of Regional Climate Simulations

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Author : Sedlmeier, Katrin
language : en
Publisher: KIT Scientific Publishing
Release Date : 2020-01-16

Near Future Changes Of Compound Extreme Events From An Ensemble Of Regional Climate Simulations written by Sedlmeier, Katrin and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-01-16 with Science categories.

Perspectives On Warm Conveyor Belts Sensitivities To Ensemble Configuration And The Role For Forecast Error

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Author : Pickl, Moritz
language : en
Publisher: KIT Scientific Publishing
Release Date : 2023-03-30

Perspectives On Warm Conveyor Belts Sensitivities To Ensemble Configuration And The Role For Forecast Error written by Pickl, Moritz and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-03-30 with Science categories.

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.