排序方式: 共有4条查询结果,搜索用时 15 毫秒
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Zodiatis G. Alexandri S. Pavlakis P. Jonsson L. Kallos G. Demetropoulos A. Georgiou G. Theodorou A. Balopoulos E. 《Annales Geophysicae》1997,14(11):1221-1231
A statistical technique for image processing, the maximum cross correlation (MCC) method, was utilized on sequences of NOAA-AVHRR thermal data in order to explore the surface advective current dynamics at the discharge region of the Hellespont in the North Aegean Sea. A 2D numerical flow model was also used in order to simulate the barotropic flow pattern of the surface water layer. The model was forced with diurnal wind fields obtained for the same period as the satellite infrared images. The currents (magnitude and direction) derived from the two methods compare satisfactorily despite the fact that some model simplifications were made. 相似文献
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George Galanis Dan Hayes George Zodiatis Peter C. Chu Yu-Heng Kuo George Kallos 《Marine Geophysical Researches》2012,33(1):1-15
In this paper the main wave height characteristics in the Mediterranean Sea are studied from both observational and numerical
perspectives. The numerical wave model WAM is employed on a high spatial resolution mode and in two different versions, one
of which incorporates information for sea surface currents. Altimeter data obtained from all available satellite missions
over the area are also utilized. The data sets are analyzed both by conventional statistical measures as well as by advanced
techniques provided by a relatively new branch of mathematics, information geometry, in the framework of which the data under
study and the distributions that they form are treated as elements of non Euclidean spaces. In this framework, novel ideas
for the estimation of the deviations between the observed and modeled values are proposed. 相似文献
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Hindcast of oil-spill pollution during the Lebanon crisis in the Eastern Mediterranean, July-August 2006 总被引:2,自引:0,他引:2
Coppini G De Dominicis M Zodiatis G Lardner R Pinardi N Santoleri R Colella S Bignami F Hayes DR Soloviev D Georgiou G Kallos G 《Marine pollution bulletin》2011,62(1):140-153
MOON (Mediterranean Operational Oceanography Network http://www.moon-oceanforecasting.eu) provides near-real-time information on oil-spill detection (ocean color and SAR) and predictions [ocean forecasts (MFS and CYCOFOS) and oil-spill predictions (MEDSLIK)]. We employ this system to study the Lebanese oil-pollution crisis in summer 2006 and thus to assist regional and local decision makers in Europe, regionally and locally. The MEDSLIK oil-spill predictions obtained using CYCOFOS high-resolution ocean fields are compared with those obtained using lower-resolution MFS hydrodynamics, and both are validated against satellite observations. The predicted beached oil distributions along the Lebanese and Syrian coasts are compared with in situ observations.The oil-spill predictions are able to simulate the northward movement of the oil spill, with the CYCOFOS predictions being in better agreement with satellite observations. Among the free MEDSLIK parameters tested in the sensitivity experiments, the drift factor appears to be the most relevant to improve the quality of the results. 相似文献
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