Convective precipitation simulated with ICON over heterogeneous surfaces in dependence on model and land-surface resolution


Book Description

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


Book Description

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.




Perspectives on warm conveyor belts - sensitivities to ensemble configuration and the role for forecast error


Book Description

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.




Objective identification and climatology of mesoscale high-wind features within extratropical cyclones


Book Description

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.







Oceanography of the Mediterranean Sea


Book Description

Oceanography of the Mediterranean Sea: An Introductory Guide provides a comprehensive but concise introduction to the physical oceanography of one of the most fascinating marginal seas, the Mediterranean Sea. The book is primarily focused on the state-of-the-art understanding of the physical functioning of the Mediterranean Sea, while embracing the fundamentals of associated geological and chemical processes. Written by multiple scientists active over many years in the Mediterranean marine community, the book provides a broad overview on the information needed to get a robust background on the physical oceanography of the Mediterranean Sea for students in oceanography, climate science, marine geology and chemistry or scientists unfamiliar with the region. - Provides a comprehensive but concise introduction to the physical oceanography of the Mediterranean Sea - Presents the existing links between climate, ocean, biogeochemical cycles and geological evolution at the Mediterranean scale - Presents clear examples of the Mediterranean region, as well as comparisons with other regions globally










The Mediterranean Sea


Book Description

This volume is an indispensable addition to the multidisciplinary coverage of the science of the Mediterranean Sea. The editors have gathered leading authorities from the fields of Marine Biology, Ecology, paleoclimatology, Chemical and Physical Oceanography, Zoology, Botany, Aquatic Photosynthesis, Socioeconomics, Mariculture, Mediterranean History and Science of Humanity. Beginning with the birth of the Mediterranean Sea and its myths. From coral to fish, an introduction is given to its major inhabitants of plants and animals past and present. The chapters illustrate how organisms interact as part of the structure and function of the Sea's main ecosystems. The rise of the Mediterranean as the cradle of the Western Civilization leads to a discourse on the status of human interaction with the sea. Accelerating global climate change, water warming, ocean acidification and sea level rise, and analyses of their effects on key organisms, entire ecosystems and human socioeconomics are given. Forecasting and predictions are presented taking into account different future scenarios from the IPCC (International Panel on Climate Change). The volume is richly illustrated in color, with an extensive bibliography. A valuable addition to the limited literature in the field, offering up-to-date broad coverage merging science and humanities.​