نتایج جستجو برای: meteorologists
تعداد نتایج: 268 فیلتر نتایج به سال:
Short-term quantitative precipitation forecast is a challenging topic in meteorology, as the number of severe meteorological phenomena increasing most regions world. Weather radar data utmost importance to meteorologists for issuing short-term weather and warnings phenomena. We are proposing AutoNowP, binary classification model intended nowcasting based on reflectivity prediction. Specifically...
Does interdisciplinary team collaboration enhance the knowledge generated and shared in systems model building or does model building enhance the collaboration and collegiality of interdisciplinary team members? This paper addresses the processes involved in constructing dynamic system models of “deep complexity” related to scientific and environmental issues. Typically such model-building requ...
1 Department of Civil and Environmental Engineering, Imperial College London, London, UK 2 Grantham Institute for Climate Change and the Environment, Imperial College London, London, UK 3 Departamento de Ingeniería Civil y Ambiental, Escuela Politécnica Nacional, Quito, Ecuador 4 Department of Civil Engineering, Universiti Putra Malaysia, Serdang, Malaysia 5 Consortium for the Sustainable Devel...
We conducted two in vivo studies to explore how scientists respond to anomalies. Based on prior research, we identify three candidate strategies: mental simulation, mental manipulation of an image, and comparison between images. In Study 1, we compared experts in basic and applied domains (physics and meteorology). We found that the basic scientists used mental simulation to resolve an anomaly,...
Tornado ratings from the 1950s into the early 1970s were based almost entirely upon remote, post-event review of media articles and photographs (Schaefer and Edwards 1998). Starting in the middle 1970s, local National Weather Service (NWS) offices have assigned F-scale ratings to most tornadoes based on a blend of f irst-hand surveys by their meteorologists and anecdotal evidence from news medi...
We show how a relational database can be used to store a large volume of complex, structured spatial information so as to support efficient retrieval by partial matching to a user’s queries. A novel representation of spatial relationships is employed that facilitates efficient processing of conjunctive queries. Our approach is implemented in MetVUW Workbench, a system for intelligent retrieval ...
Clustering data streams is an important task in data mining research. Recently, some algorithms have been proposed to cluster data streams as a whole, but just few of them deal with multivariate data streams. Even so, these algorithms merely aggregate the attributes without touching upon the correlation among them. In order to overcome this issue, we propose a new framework to cluster multivari...
INTRODUCTION Three-dimensional radar reflectivity data and the algorithms used to help meteorologists interpret these data are extremely important in nowcasting. However, a number of inherent problems arise when tracking thunderstorm cells with 3-dimensional reflectivity. These problems include (1) identifying cells in a complex multi-cellular thunderstorm environment, (2) detecting thunderstor...
Analysis and prediction of the typhoon has been intensively studied by a number of meteorologists because of the huge impact of the typhoon to the society. We study the same issue from a different viewpoint — from an informatics perspective. Our goal is to discover relevant knowledge for typhoon analysis and prediction by means of various computational tools that have been developed in the info...
The EuroMET (European Meteorological Education and Training) project was created to address the education and training needs of professional meteorologists and students in tertiary education throughout Europe and more widely. Two courses, each modular in format, have been developed for the World Wide Web. The courses have been evaluated at three key points during their development for their usa...
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