Search Results - "Tsagouri, I."

The total solar eclipse of March 2006: overview by Gerasopoulos, E., Zerefos, C. S., Tsagouri, I., Founda, D., Amiridis, V., Bais, A. F., Belehaki, A., Christou, N., Economou, G., Kanakidou, M., Karamanos, A., Petrakis, M., Zanis, P.

“…This paper provides the overview of an integrated, multi-disciplinary effort to study the effects of the 29 March 2006 total solar eclipse on the environment,…”
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An upgrade of the solar-wind-driven empirical model for the middle latitude ionospheric storm-time response by Tsagouri, I., Belehaki, A.

“…Based on recent advances in ionospheric storm dynamics that correlate the ionospheric storm effects with space weather parameters such as the magnitude of the…”
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Time series autoregression technique implemented on-line in DIAS system for ionospheric forecast over Europe by KOUTROUMBAS, K, TSAGOURI, I, BELEHAKI, A

“…A new method for ionospheric predictions based on time series autoregressive models (AR) that was recently developed to serve the needs of the European Digital…”
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Evidence of gravity waves into the atmosphere during the March 2006 total solar eclipse by Zerefos, C. S., Gerasopoulos, E., Tsagouri, I., Psiloglou, B. E., Belehaki, A., Herekakis, T., Bais, A., Kazadzis, S., Eleftheratos, C., Kalivitis, N., Mihalopoulos, N.

“…This study aims at providing experimental evidence, to support the hypothesis according to which the movement of the moon's shadow sweeping the ozone layer at…”
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Ionospheric foF2 forecast over Europe based on an autoregressive modeling technique driven by solar wind parameters by Tsagouri, I., Koutroumbas, K., Belehaki, A.

“…The development of a new ionospheric forecasting algorithm, called the Solar Wind driven autoregression model for Ionospheric short‐term Forecast (SWIF) is…”
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Retrieval of thermospheric parameters from routine ionospheric observations: assessment of method’s performance at mid-latitudes daytime hours by Mikhailov, A.V., Belehaki, A., Perrone, L., Zolesi, B., Tsagouri, I.

“…A new method has been developed to retrieve neutral temperature Tn and composition [O], [N2], [O2] from electron density profiles in the daytime mid-latitude…”
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Positive and negative ionospheric disturbances at middle latitudes during geomagnetic storms by Tsagouri, I., Belehaki, A., Moraitis, G., Mavromichalaki, H.

“…The morphology of middle latitude ionospheric disturbances in response to geomagnetic storms has been investigated to determine the phenomenological…”
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A new empirical model of middle latitude ionospheric response for space weather applications by Tsagouri, I., Belehaki, A.

“…A new model for nowcasting and forecasting foF2 disturbances at middle latitude ionosphere, suitable for both scientific and operational purposes is proposed…”
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On the clustering of foF2 time series corresponding to disturbed ionospheric periods by Koutroumbas, K., Tsagouri, I., Belehaki, A.

“…This paper presents an analysis of a set of time series that represent foF2 disturbances during storm conditions, using clustering tools. The time series under…”
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On the occurrence of storm-induced nighttime ionization enhancements at ionospheric middle latitudes by Belehaki, A., Tsagouri, I.

“…Ionospheric observations from nine middle‐latitude stations are studied for five magnetic storms that occurred during September and October 2000. The…”
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Low- and high-frequency spectral behavior of cosmic-ray intensity for the period 1953-1996 by MAVROMICHALAKI, H, PREKA-PAPADEMA, P, PETROPOULOS, B, TSAGOURI, I, GEORGAKOPOULOS, S, POLYGIANNAKIS, J

“…A study of the cosmic-ray intensity power spectrum using the Climax Neutron Monitor data in the frequency range from 10-9 Hz to 10-7 Hz (which corresponds to…”
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Oblique-incidence ionospheric soundings over Central Europe and their application for testing now casting and long term prediction models by Pietrella, M., Perrone, L., Fontana, G., Romano, V., Malagnini, A., Tutone, G., Zolesi, B., Cander, Lj.R., Belehaki, A., Tsagouri, I., Kouris, S.S., Vallianatos, F., Makris, J., Angling, M.

“…After a first oblique-incidence ionospheric sounding campaign over Central Europe performed during the period 2003–2004 over the radio links between Inskip…”
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Characteristics of the Effective Scale Height in the Topside Ionosphere Extracted From Swarm A and Digisonde Observations: Preliminary Results by Belehaki, A., Tsagouri, I., Paouris, E.

“…The ionospheric scale height is a key parameter that defines the shape of the electron density profile. Given that its direct calculation requires knowledge of…”
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A new campaign for oblique-incidence ionospheric sounding over Europe and its data application by Zolesi, B., Fontana, G., Perrone, L., Pietrella, M., Romano, V., Tutone, G., Belehaki, A., Tsagouri, I., Kouris, S.S., Vallianatos, F., Makris, J.P., Angling, M.J.

“…New systematic oblique ionospheric radio sounding measurements over Central Europe, concerning the radio links between Inskip (UK, 53.5°N, 2.5°W) and Rome…”
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On the nature of nighttime ionisation enhancements observed with the Athens Digisonde by TSAGOURI, I, BELEHAKI, A

“…True height electron density profiles observed with the Athens Digisonde were analyzed together with geomagnetic data indices for six magnetic storms in…”
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Time evolution of cosmic-ray intensity and solar flare index at the maximum phase of cycles 21 and 22 by Mavromichalaki, H., Preka-Papadema, P., Petropoulos, B., Vassilaki, A., Tsagouri, I.

“…Analysis of the time series into trigonometric series allows the investigation of cosmic-ray (CR) intensity variations in a range of periodicities from a few…”
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Sector-structured interplanetary magnetic field associated with the fast plasma streams in 1985-1996 by Mavromichalaki, H, Vassilaki, A, Tsagouri, I

“…An analysis of 373 well-defined high-speed solar-wind streams observed at 1 AU during the years 1985-1996 is outlined. The distribution of the occurrence of…”
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Ionosphere Variability II: Advances in theory and modeling by Ioanna Tsagouri, I., David R. Themens, D., Belehaki, Anna, Shim, Ja-Soon, Hoque, Mainul M., Nykiel, Grzegorz, Borries, Claudia, Morozova, Anna, Barata, Teresa, Miloch, Wojciech J.

“…This paper aims to provide an overview on recent advances in ionospheric modeling capabilities, with the emphasis in the efforts relevant to electron density…”
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Study of the longitudinal expansion velocity of the substorm current wedge by BELEHAKI, A, TSAGOURI, I, MAVROMICHALAKI, H

“…In this work we examine simultaneous observations from the two geosynchronous satellites GOES-5 and GOES-6 located at 282°E and 265°E respectively, and from…”
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Study of the thermospheric-ionospheric response to intense geomagnetic storms at middle latitudes by Belehaki, A., Tsagouri, I.

“…The ionospheric response to enhanced geomagnetic activity was studied in terms of two ionospheric parameters, foF2 and h'F2, aiming the investigation of the…”
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