Diagnosing The Downstream Impact Of Extratropical Transition Using Multimodel Operational Ensemble Prediction Systems
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Diagnosing The Downstream Impact Of Extratropical Transition Using Multimodel Operational Ensemble Prediction Systems
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Author : Julia Henriette Keller
language : en
Publisher: KIT Scientific Publishing
Release Date : 2014-10-16
Diagnosing The Downstream Impact Of Extratropical Transition Using Multimodel Operational Ensemble Prediction Systems written by Julia Henriette Keller 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 2014-10-16 with Science categories.
The study examines the predictability during the extratropical transition (ET) of tropical cyclones using the THORPEX Interactive Grand Global Ensemble (TIGGE), a multimodel ensemble prediction system (EPS). It is shown that TIGGE exhibits more possible development scenarios than a single EPS. By analysing the eddy kinetic energy budget of forecast scenarios for two ET cases, extracted from an EPS, the impact of the transitioning tropical cyclones on the midlatitude flow is studied in detail.
Diagnosing The Downstream Impact Of Extratropical Transition Using Multimodel Operational Ensemble Prediction Systems
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Author : Julia Henriette Keller
language : en
Publisher:
Release Date : 2012
Diagnosing The Downstream Impact Of Extratropical Transition Using Multimodel Operational Ensemble Prediction Systems written by Julia Henriette Keller and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
Wind Systems And Energy Balance In The Dead Sea Valley
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Author : Metzger, Jutta
language : en
Publisher: KIT Scientific Publishing
Release Date : 2017-10-17
Wind Systems And Energy Balance In The Dead Sea Valley written by Metzger, Jutta 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 2017-10-17 with Physics categories.
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.
Wind Systems In The Dead Sea And Footprints In Seismic Records
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Author : Lott, Friederike Franziska
language : en
Publisher: KIT Scientific Publishing
Release Date : 2017-02-22
Wind Systems In The Dead Sea And Footprints In Seismic Records written by Lott, Friederike Franziska 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 2017-02-22 with Physics categories.
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.
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.
Efficient Radar Forward Operator For Operational Data Assimilation Within The Cosmo Model
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Author : Zeng, Yuefei
language : en
Publisher: KIT Scientific Publishing
Release Date : 2014-09-26
Efficient Radar Forward Operator For Operational Data Assimilation Within The Cosmo Model written by Zeng, Yuefei 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 2014-09-26 with Biography & Autobiography categories.
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.
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.
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.
Separating The Aerosol Effect In Case Of A Medicane
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Author : Kraut, Isabel
language : en
Publisher: KIT Scientific Publishing
Release Date : 2015-08-06
Separating The Aerosol Effect In Case Of A Medicane written by Kraut, Isabel 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 2015-08-06 with Physics categories.
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.
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.