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PL
Informacja pogodowa odgrywa kluczową rolę w działaniach lotnictwa. Jest ona dostarczana przez systemy zewnętrzne a także przez lokalne stacje pomiarowe na lotnisku. Informacja ta jest przetwarzana w prognozy średnio i krótkoterminowe oraz jest na bieżąco wykorzystywana w operacjach lotniczych. W artykule przedstawiono model lokalnej stacji meteorologicznej zrealizowanej z wykorzystaniem dostępnych na rynku elementów pomiarowych.
EN
Weather information plays a key role in aviation operations. It is provided by external systems as well as by local measuring stations at the airport. This information is processed into medium and shortterm forecasts and is used in air operations on an ongoing basis. The article presents a model of a local meteorological station realized with the use off the shelf sensors.
EN
This study focuses on the investigation of available surface currents and wind parameters for employing them in order to predict the survivor movement in the Szczecin Lagoon waters. For this purpose, the surface currents and wind parameters were generated by selected numerical models and the wind parameters were also measured with the telemetry devices. In this paper, the PM3D hydrodynamic model and the NEMS, ECMWF, GFS weather forecast models have been investigated. The measurements of the wind parameters, recorded at the Brama Torowa I and Trzebież stations, were also analyzed. As part of the research, an expert method was used to evaluate the surface currents parameters. In turn, the method based on comparing the forecasted wind parameters with the measured wind parameters was applied in order to assess uncertainties of these parameters. The comparative analyses of the data on the surface currents and wind parameters have been done and probabilistic models for uncertainties of these forecasted parameters have been formulated. Additionally, relations between the surface currents speeds and the wind speeds, in the case when their directions were consistent, have been also discovered.
EN
In this paper we introduce new model for simulation sea vessel routing. Besides a vessel types (polar diagram) and weather forecast, travel security and the number of maneuvers are considered. Based on these data both the minimal travelling costs and the minimal processing time are found for different vessels and different routes. To test our model the applications SailingAssistance wad improved. The obtained results shows that we can obtain quite acceptable results.
EN
The operational limitations are discussed at the IMO as a part of the second generation intact stability criteria. Since it is a first attempt to introduce operational efforts into safety regulations, comprehensive discussions are necessary to realize practically acceptable ones. Therefore this study investigates actual navigation routes of container ships and pure car carriers in the trans-North Pacific Ocean in winter, because they are prone to suffer significant parametric roll which is one of stability failure modes. Firstly, interviews are made to shipmasters who have experiences to have operated the subject ships to identify major elements for route selection in the North Pacific Ocean. Secondly, sufficient number of actual navigation records is collected from Satellite AIS data to derive the weather criteria for the route selection in severe weather condition. Finally, shipmaster’s on-board decision-making criteria are discussed by analysing the ship tracking data and weather data.
5
Content available Multi-objective weather routing of sailing vessels
EN
The paper presents a multi-objective deterministic method of weather routing for sailing vessels. Depending on a particular purpose of sailboat weather routing, the presented method makes it possible to customize the criteria and constraints so as to fit a particular user’s needs. Apart from a typical shortest time criterion, safety and comfort can also be taken into account. Additionally, the method supports dynamic weather data: in its present version short-term, mid-term and long-term term weather forecasts are used during optimization process. In the paper the multi-objective optimization problem is first defined and analysed. Following this, the proposed method solving this problem is described in detail. The method has been implemented as an online SailAssistance application. Some representative examples solutions are presented, emphasizing the effects of applying different criteria or different values of customized parameters.
EN
This paper is devoted to the problem of controlling an oriented PV using weather forecasts. The described solution presents the use of fuzzy logic fundamentals in order to increase the efficiency of a PV system. It differs from most related papers in the fact that it uses fuzzy logic in order to process weather condition numeric values as input data. All of necessary steps to reproduce the proposed solution have been included.
PL
Artykuł ten jest poświęcony tematyce opracowania sterowania nadrzędnego ogniw słonecznych, z wykorzystaniem prognoz pogody. Przedstawione w nim rozwiązanie korzysta z podstaw logiki rozmytej, aby zwiększyć wydajność energetyczną ogniw solarnych. W odróżnieniu od większości prac o podobnej tematyce, wnioskowanie rozmyte służy przetworzeniu danych numerycznych uzyskanych z prognozy pogody. Wszystkie komponenty potrzebne do odtworzenia rozwiązania zostały opisane w artykule.
EN
Electrical energy is considered both as an important driver for producing and transporting goods in companies, as well as a good in itself which requires planning and management for generating and delivering it to consumers in proper time and amounts. Weather information can be considered to convey part of the data on energy delivery needs of consumers. Free meteorological data sources on the Web do not offer consistent data to automate energy consumption forecasts. The paper identifies and addresses these inconsistencies to provide for automatic data gathering and supply to a demand forecasting model.
PL
Energia elektryczna jest istotna w produkcji i transporcie, zaś w pewnych gałęziach gopodarki również jako dobro samo w sobie, wymagające planowanie i zarządzania generacją oraz dystrybucją, w celu dostarczenia do klienta w odpowiednim czasie i ilości. Przyjmuje się, że informacje pogodowe niosą dane na temat zapotrzebowania energetycznego konsumentów. Darmowe źródła pogodowe w Internecie oferują dane niespójne, które nie pozwalają na automatyzację procesu prognozowania zapotrzebowania. Artykuł wskazuje te niespójności, oraz wskazuje sposoby ich zniwelowania, w celu zapewnienia automatycznego zbierania danych oraz generowania prognoz zapotrzebowania.
EN
The current state of knowledge and the latest trends and examples of decision support systems (DSSs) are presented in this paper. Special emphasis was placed on a DSS proposal based on post-processed numerical weather forecasts operating in a real time. There is an essential need for decision support systems that can react to any incidents – including those that pose a risk to the natural environment or human activity in general. For this purpose an exemplary system has been prepared, which was – from its conception to implementation – the original idea of the author. The system enables communication with the user via a graphical user interface that controls the operation of the program, the course of the algorithm and the data flow. The system is modular, allowing the connection of other applications to carry out the work of a DSS. A basic view of the operating window and working panels have been designed for proper demonstration of various types of information and visualizations – the substantial products and results of the system. Further research in the field of DSS of this kind should be the implementation within the RIOT system of mechanisms of notification and response to crisis events related to extreme weather phenomena (whirlwinds, intensive rains, strong frosts or heats).
EN
The current state of the art and dedicated applications in Early Warning Systems (EWS) of hydrological and meteorological threats are presented herein. Special emphasis is placed on systems based on the post-processing of deterministic numerical weather forecasts in the real-time mode. The importance of climate and weather forecasting models in providing warnings against slow and rapid onset rates e.g. drought and dispersion of atmospheric pollutants respectively, is discussed. It is strongly suggested that there is a need for systems, corresponding to crisis situations in the field of environmental hazards and/or human activities in general, that would be able to provide support and information about further possible scenarios with a projected state of both the environment and the possibility of the negative impact of various factors on the population (human communities). Since there are highly developed plans for the construction of a nuclear power plant in Poland, there is an urgent need to prepare adequate tools that will help avoid crisis situations, or at least to minimize their negative effects. The Early Warning System should be considered one such tool, to be used not only for its economic benefits, but also for pro-social areas of services responsible for the appropriate reaction to crisis events.
EN
This paper describes application of Strength Pareto Evolutionary Algorithm (SPEA) to an optimization problem in weather routing. The paper includes a description of SPEA algorithm and defines the constrained weather routing optimization problem. It also presents a proposal and preliminary test results of SPEA-based weather routing evolutionary algorithm.
11
Content available remote A numerical prediction system for wind and sea wave: a typhoon case
EN
A numerical model system is constructed to predict surface conditions over the open oceans for a typhoon case. Its atmospheric and oceanic components are the Weather Research and Forecasting (WRF) model and the NOAA WaveWatch version 3 (NWW3) model, respectively. The initial condition of the WRF is obtained from the NCEP aviation forecast, while the WRF-predicted surface winds serve as the boundary conditions for sea wave prediction of the NWW3.The capability of this model system is evaluated in terms of the predictions of surface wind and sea waves associated with the typhoon Bilis (No. 0604). This typhoon formed over the west side of Guam (141?E, 12?N) on July, 9, 2006, and moved northwestward across Taiwan to decay over southeast China on July, 15, 2006. Its moving track is reasonably predicted by the WRF with an averaged error of 99 km in 24-hr forecast and of 233 km in 48-hr forecast. These errors are in comparable ranges with the official typhoon forecasts conducted by weather services in the countries around the Pacific. The circulation pattern and intensity of surface winds and height of sea waves can be adequately portrayed by this prediction system in advance by 48 hrs. The dangerous and navigable semicircles of the typhoon are also clearly delineated. As such, the spatial domains of high wind and high sea are identified, providing potentially useful information for navigation safety.
12
Content available Numeryczne modele prognoz pogody
PL
W referacie przestawiono wprowadzenie do problematyki opracowywania numerycznych modeli prognoz pogody. Omówione zostały zagadnienia tworzenia modeli globalnych, regionalnych i mezoskalowych wraz z procedurą tzw. „zagnieżdżania modeli”. Przedstawiono charakterystykę mezoskalowego modelu UMPL dla obszaru Polski wraz z zasadami konstrukcji siatki obliczeniowej modelu oraz wyborem odwzorowań kartograficznych dla map zawierających horyzontalne rozkłady parametrów meteorologicznych. Oryginalnym wynikiem przeprowadzonych badań jest uzyskiwanie pionowych przekrojów atmosfery wzdłuż dowolnej trasy. Otrzymywane produkty wykorzystywane są do osłony meteorologicznej kraju, a w szczególności do zabezpieczenia działań lotnictwa.
EN
The paper presents a concept of application of non-standard atmospheric parameters charts, determined on the basis of the UMPL (Unified Model for Poland Area) mesoscale model data, to synoptic analysis. Effective weather forecasts for aviation, including additional information about vertical profiles of meteorological elements, require objective forecast of the atmospheric state based on the results of numerical models and remotely sensed data. The procedure can be applied to points of geographical coordinates corresponding e.g. to a planned route of an aircraft.
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