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Your search keyword '"Tegoulias, Ioannis"' showing total 3 results
Start Over Author "Tegoulias, Ioannis" Topic meteorological precipitation
3 results on '"Tegoulias, Ioannis"'

1. The High-Resolution Numerical Weather Prediction System of the Agroray Project.

Author

Pytharoulis, Ioannis, Kartsios, Stergios, Kostopoulos, Vassilios, Spyrou, Christos, Tegoulias, Ioannis, Bampzelis, Dimitrios, and Zanis, Prodromos

Subjects
WEATHER forecasting, METEOROLOGICAL precipitation, PROJECT management, METEOROLOGICAL research
Abstract

The Agroray project was aimed at the development of a high-resolution numerical weather prediction system that will allow farmers to optimize their activities and protect their products from adverse weather events. The system is based on the Weather Research and Forecasting model and focuses on Central Macedonia with a horizontal grid spacing of 1 km. The aim of this article is to describe the model configuration and validate its performance during selected frost and intense precipitation events. The evaluation against station measurements and radar precipitation showed that the optimum model setup includes Corine land use and enhanced vertical resolution near the surface. [ABSTRACT FROM AUTHOR]

Published
2023
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2. Synoptic, Dynamic Analysis and Numerical Simulations of Extreme Flood Cases in Pieria Region.

Author

Bampzelis, Dimitrios, Kartsios, Stergios, Pytharoulis, Ioannis, Kostopoulos, Vassilios, Spyrou, Christos, Tegoulias, Ioannis, and Zanis, Prodromos

Subjects
METEOROLOGICAL precipitation, COMPUTER simulation, DATA analysis, PROJECT management
Abstract

The synoptic and dynamic characteristics of three extreme precipitation events over the area of Pieria are analyzed. The objective of this study is to identify similarities in structure, intensity and behavior of the synoptic patterns that were responsible for the extreme precipitation over the examined area. Precipitation-derived data from weather radar images were also used to identify the intensity and extent of the events. The high-resolution non-hydrostatic WRF-ARW numerical weather prediction model was also used to simulate these intense precipitation events. Results indicated analogous synoptic conditions in all three cases suggesting the strong synoptic forcing of the events in extreme precipitation over the area. The model was able to capture these events adequately, even though discrepancies occurred regarding the intensity and the location of the precipitation maxima. [ABSTRACT FROM AUTHOR]

Published
2023
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3. EGY AUTOMATA ÉS EGY EMPIRIKUS LÉGCIRKULÁCIÓS OSZTÁLYOZÁSI RENDSZER ÖSSZEHASONLÍTÓ ELEMZÉSE A KÁRPÁT-MEDENCÉRE.

Author

SZPIROSZ, KLICÁSZ, MAHERAS, PANAGIOTIS, TOLIKA, KONSTANTINA, TEGOULIAS, IOANNIS, ANAGNOSTOPOULOU, CHRISTINA, CSABA, KÁROSSY, and LÁSZLÓ, MAKRA

Subjects
STATISTICAL correlation, METEOROLOGICAL precipitation, CLASSIFICATION, CHARTS, diagrams, etc., WINTER, ATMOSPHERIC circulation
Abstract

The aim of the study is to compare the performance of the two classification methods based on the atmospheric circulation types over the Pannonian basin in Central Europe. Relationships including seasonal occurrences and correlation coefficients, as well as comparative diagrams of the seasonal occurrences of the circulation types of the two classification systems are presented. When comparing the automated (objective) and empirical (subjective) classification methods, it was found that the frequency of the empirical anticyclonic (or cyclonic) types is much higher (or lower) than that of the automated anticyclonic (cyclonic) types both on an annual and seasonal basis. The highest and statistically significant correlations between the circulation types of the two classification systems, as well as those between the cumulated seasonal anticyclonic and cyclonic types, occur in winter for both classifications, since the weather-influencing effect of the atmospheric circulation in this season is the most prevalent. Precipitation levels in Budapest display a decreasing trend in accordance with the decrease in the occurrence of the automated cyclonic types. In contrast, the occurrence of the empirical cyclonic types displays an increasing trend. There occur types in a given classification that are usually accompanied by high ratios of certain types in the other classification. [ABSTRACT FROM AUTHOR]

Published
2019
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