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Radar Forward Operator For Verification Of Cloud Resolving Simulations Within The Cosmo Model
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Book Synopsis Radar Forward Operator for Verification of Cloud Resolving Simulations within the COSMO Model by : Jerger, Dorit
Download or read book Radar Forward Operator for Verification of Cloud Resolving Simulations within the COSMO Model written by Jerger, Dorit and published by KIT Scientific Publishing. This book was released on 2014-05-19 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Precipitation Science by : Silas Michaelides
Download or read book Precipitation Science written by Silas Michaelides and published by Elsevier. This book was released on 2021-11-11 with total page 871 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Book Synopsis Convective precipitation simulated with ICON over heterogeneous surfaces in dependence on model and land-surface resolution by : Singh, Shweta
Download or read book Convective precipitation simulated with ICON over heterogeneous surfaces in dependence on model and land-surface resolution written by Singh, Shweta and published by KIT Scientific Publishing. This book was released on 2021-08-16 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Arctic mixed-phase clouds : Macro- and microphysical insights with a numerical model by : Loewe, Katharina
Download or read book Arctic mixed-phase clouds : Macro- and microphysical insights with a numerical model written by Loewe, Katharina and published by KIT Scientific Publishing. This book was released on 2017-09-15 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Optimizing Dual-Doppler Lidar Measurements of Surface Layer Coherent Structures with Large-Eddy Simulations by : Stawiarski, Christina
Download or read book Optimizing Dual-Doppler Lidar Measurements of Surface Layer Coherent Structures with Large-Eddy Simulations written by Stawiarski, Christina and published by KIT Scientific Publishing. This book was released on 2014-07-10 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Assessing the Aerosol Impact on Southern West African Clouds and Atmospheric Dynamics by : Deetz, Konrad
Download or read book Assessing the Aerosol Impact on Southern West African Clouds and Atmospheric Dynamics written by Deetz, Konrad and published by KIT Scientific Publishing. This book was released on 2018-01-30 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Representation of warm conveyor belts in sub-seasonal forecast models and the link to Atlantic-European weather regimes by : Wandel, Jan Lucas
Download or read book Representation of warm conveyor belts in sub-seasonal forecast models and the link to Atlantic-European weather regimes written by Wandel, Jan Lucas and published by KIT Scientific Publishing. This book was released on 2023-05-25 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Boundary-Layer Processes Producing Mesoscale Water-Vapour Variability over a Mountainous Island by : Adler, Bianca
Download or read book Boundary-Layer Processes Producing Mesoscale Water-Vapour Variability over a Mountainous Island written by Adler, Bianca and published by KIT Scientific Publishing. This book was released on 2014-09-12 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Objective identification and climatology of mesoscale high-wind features within extratropical cyclones by : Eisenstein, Lea Andrea
Download or read book Objective identification and climatology of mesoscale high-wind features within extratropical cyclones written by Eisenstein, Lea Andrea and published by KIT Scientific Publishing. This book was released on 2024-10-01 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Wind Systems and Energy Balance in the Dead Sea Valley by : Metzger, Jutta
Download or read book Wind Systems and Energy Balance in the Dead Sea Valley written by Metzger, Jutta and published by KIT Scientific Publishing. This book was released on 2017-10-17 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new measurement concept was developed to determine the amount, variability and governing factors of evaporation from the Dead Sea. Additionally, a suitable indirect method to calculate evaporation is presented. Results show that vapour pressure deficit and wind speed are governing evaporation and that the diurnal cycle is determined by three distinct diurnal wind systems. The occurrence frequency and intensity of the wind systems are determined by local differential cooling and heating.
Book Synopsis Atmospheric Moisture Effects on Deep Convection in the Western Mediterranean by : Caldas-Alvarez, Alberto
Download or read book Atmospheric Moisture Effects on Deep Convection in the Western Mediterranean written by Caldas-Alvarez, Alberto and published by KIT Scientific Publishing. This book was released on 2019-10-24 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Contrails and Climate Engineering - Process Studies on Natural and Artificial High-Level Clouds and Their Impact on the Radiative Fluxes by : Gruber, Simon
Download or read book 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 published by KIT Scientific Publishing. This book was released on 2019-03-22 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Near future changes of compound extreme events from an ensemble of regional climate simulations by : Sedlmeier, Katrin
Download or read book Near future changes of compound extreme events from an ensemble of regional climate simulations written by Sedlmeier, Katrin and published by KIT Scientific Publishing. This book was released on 2020-01-16 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Perspectives on warm conveyor belts - sensitivities to ensemble configuration and the role for forecast error by : Pickl, Moritz
Download or read book Perspectives on warm conveyor belts - sensitivities to ensemble configuration and the role for forecast error written by Pickl, Moritz and published by KIT Scientific Publishing. This book was released on 2023-03-30 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Wind Systems in the Dead Sea and Footprints in Seismic Records by : Lott, Friederike Franziska
Download or read book Wind Systems in the Dead Sea and Footprints in Seismic Records written by Lott, Friederike Franziska and published by KIT Scientific Publishing. This book was released on 2017-02-22 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atmospheric processes, such as wind, impact the ground motion of the earth and have the potential to induce strong broad-band noise in seismological records. In order to quantify the influence of wind on ground motion velocity joint seismological and meteorological measurements were conducted at the Dead Sea.Results reveal a pronounced impact of wind on seismological records. A methodology is presented to account for the dependency of PSD of ground motion velocity on the horizontal wind field.
Book Synopsis Separating the Aerosol Effect in Case of a "Medicane" by : Kraut, Isabel
Download or read book Separating the Aerosol Effect in Case of a "Medicane" written by Kraut, Isabel and published by KIT Scientific Publishing. This book was released on 2015-08-06 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Efficient Radar Forward Operator for Operational Data Assimilation within the COSMO-model by : Zeng, Yuefei
Download or read book Efficient Radar Forward Operator for Operational Data Assimilation within the COSMO-model written by Zeng, Yuefei and published by KIT Scientific Publishing. This book was released on 2014-09-26 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Doppler radars provide unique 3D information about precipitating clouds in high spatial and temporal resolutions. However, the observed quantities (reflectivity, Doppler velocity and polarization properties) are not directly comparable to the variables of numerical prediction models. In order to enable radar data assimilation, a comprehensive modular radar forward operator has been developed.
