The purpose of our research deals with the description of a methodology for the definition of specific weather sequences and their influence on the energy needs of HVAC system. We’ll apply the method on the tropical Reunion Island. The methodological approach based on a detailed analysis of weather sequences leads to a classification of climatic situations that can be applied to the site. These...

The reported anomalous acceleration acting on the Pioneers space-crafts could be seen as a consequence of the existence of some local curvature in light geodesics when using the coordinate speed of light in an expanding space-time. We will show that, as a matter of fact, what has been detected in the experiments is just the cosmic expansion rate-the Hubble parameter H-, a feature of light signa...

A convective cloud field model (CCFM) is substituted for a standard mass flux parameterisation of convective clouds in a limited area atmospheric model (REMO) and is tested for a whole annual cycle (July 1997 to June 1998) over the West Pacific Maritime Continent. REMO with CCFM is run in 0.5-degree resolution and the model at the lateral boundaries is forced 6-hourly by ECMWF reanalysis data. ...

On the parameterisation of the urban atmospheric sublayer in meteorological models A. Baklanov, P. Mestayer, A. Clappier, S. Zilitinkevich, S. Joffre, A. Mahura, and N. W. Nielsen Meteorological Research Department, Danish Meteorological Institute, DMI, Copenhagen, Denmark Laboratoire de Mécanique des Fluides, UMR CNRS 6598, Ecole Centrale de Nantes, ECN, France La section Sciences et Ingénieri...

Fuzzy class label adjustment is a classification preprocessing strategy that compensates for the possible imprecision of class labels. Using training vectors, robust measures of location and dispersion are computed for each class center. Based on distances from these centers, fuzzy sets are constructed that determine the degree to which each input vector belongs to each class. These membership ...

2014 The theoretical formulae we propose use the ground values of air pressure, temperature and relative humidity, parameters measured by most of the meteorological stations. The results were found to be in good agreement with those obtained from several semi-empirical formulae proposed by other authors. To compute more exactly the precipitable water layer it was established a relation which is...

Using discriminant analysis as a nucleation event classification method S. Mikkonen, K. E. J. Lehtinen, A. Hamed, J. Joutsensaari, M. C. Facchini, and A. Laaksonen Department of Physics, University of Kuopio, P.O. Box 1627, 70211 Kuopio, Finland Finnish meteorological institute, Kuopio Unit, P.O. Box 1627, 70210 Kuopio, Finland Department of Environmental Sciences, University of Kuopio, P.O. Bo...

In maritime traffic, a route is one or more known tracks along which navigation takes place or there is intention to sail. Meteorological factors are important if the route exceeds the distance of 1500M [1]. Meteorological navigation is the selection of a navigational route in view of meteorological factors and control of vessel during heavy weather conditions and safe navigation aimed at the p...

This contribution deals with the discrimination between stratiform and convective cells in meteorological radar images. This study is based on a textural analysis of the latter and their classification using a Support Vector Machine (SVM). First, we applied different textural parameters such as energy, entropy, inertia and local homogeneity. Through this experience, we identified the different ...