Radar Forward Operator For Verification Of Cloud Resolving Simulations Within The Cosmo Model
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Radar Forward Operator For Verification Of Cloud Resolving Simulations Within The Cosmo Model
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Author : Jerger, Dorit
language : en
Publisher: KIT Scientific Publishing
Release Date : 2014-05-19
Radar Forward Operator For Verification Of Cloud Resolving Simulations Within The Cosmo Model written by Jerger, Dorit 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 2014-05-19 with Science categories.
In this work, various simulation methods of the effective radar reflectivity factor and its attenuation by atmospheric particles from the variables of the COSMO model have been implemented within a so-called radar forward operator, and its output was compared to measurements from the German radar network. To perform a statistically reliable model verification, contoured frequency by altitude diagrams (CFADs) were used and refined.
Radar Forward Operator For Verification Of Cloud Resolving Simulations Within The Cosmo Model
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Author : Dorit Jerger
language : en
Publisher:
Release Date : 2020-10-09
Radar Forward Operator For Verification Of Cloud Resolving Simulations Within The Cosmo Model written by Dorit Jerger 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.
In this work, various simulation methods of the effective radar reflectivity factor and its attenuation by atmospheric particles from the variables of the COSMO model have been implemented within a so-called radar forward operator, and its output was compared to measurements from the German radar network. To perform a statistically reliable model verification, contoured frequency by altitude diagrams (CFADs) were used and refined. 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.
Precipitation Science
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Author : Silas Michaelides
language : en
Publisher: Elsevier
Release Date : 2021-11-11
Precipitation Science written by Silas Michaelides and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-11-11 with Science categories.
Precipitation Science: Measurement, Remote Sensing, Microphysics and Modeling addresses the latest key concerns for researchers in precipitation science, mainly observing, measuring, modeling and forecasting. Using case studies and global examples, the book demonstrates how researchers are addressing these issues using state-of-the-art methods and models to improve accuracy and output across the field. In the process, it covers such topics as discrepancies between models and observations, precipitation estimations, error assessment, droplet size distributions, and using data in forecasting and simulations. Other sections cover improved standard approaches, novel approaches, and coverage of a variety of topics such as climatology, data records, and more. By providing comprehensive coverage of the most up-to-date approaches to understanding, modeling, and predicting precipitation, this book offers researchers in atmospheric science, hydrology and meteorology with a comprehensive resource for improving outcomes and advancing knowledge. - Provides updated and novel approaches to key issues in precipitation research - Offers practical knowledge through global examples and case studies - Includes full-color visuals to enhance comprehension of key concepts
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.
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.
Optimizing Dual Doppler Lidar Measurements Of Surface Layer Coherent Structures With Large Eddy Simulations
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Author : Stawiarski, Christina
language : en
Publisher: KIT Scientific Publishing
Release Date : 2014-07-10
Optimizing Dual Doppler Lidar Measurements Of Surface Layer Coherent Structures With Large Eddy Simulations written by Stawiarski, Christina 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 2014-07-10 with Science categories.
Coherent structures are patterns in the wind field of the atmospheric boundary layer. The deployment of two scanning Doppler lidars facilitates the measurement of the horizontal wind field, but the inherent averaging processes complicate an interpretation of the results. To assess the suitability of this technique for coherent structure detection large-eddy simulations are used as a basis for virtual measurements, and the effects of the lidar technique on the wind field structure are analyzed.
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.
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.
Boundary Layer Processes Producing Mesoscale Water Vapour Variability Over A Mountainous Island
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Author : Adler, Bianca
language : en
Publisher: KIT Scientific Publishing
Release Date : 2014-09-12
Boundary Layer Processes Producing Mesoscale Water Vapour Variability Over A Mountainous Island written by Adler, Bianca 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 2014-09-12 with Physics categories.
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.
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.