Search Results - "Tziavos, Ilias N"

Local Gravity and Geoid Improvements around the Gavdos Satellite Altimetry Cal/Val Site by Vergos, Georgios S., Tziavos, Ilias N., Mertikas, Stelios, Piretzidis, Dimitrios, Frantzis, Xenofon, Donlon, Craig

“…The isle of Gavdos, and its wider area, is one of the few places worldwide where the calibration and validation of altimetric satellites has been carried out…”
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A Fusion Method for Combining Low-Cost IMU/Magnetometer Outputs for Use in Applications on Mobile Devices by Patonis, Photis, Patias, Petros, Tziavos, Ilias N, Rossikopoulos, Dimitrios, Margaritis, Konstantinos G

“…This paper presents a fusion method for combining outputs acquired by low-cost inertial measurement units and electronic magnetic compasses. Specifically,…”
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The ESA Permanent Facility for Altimetry Calibration: Monitoring Performance of Radar Altimeters for Sentinel-3A, Sentinel-3B and Jason-3 Using Transponder and Sea-Surface Calibrations with FRM Standards by Mertikas, Stelios, Tripolitsiotis, Achilleas, Donlon, Craig, Mavrocordatos, Constantin, Féménias, Pierre, Borde, Franck, Frantzis, Xenophon, Kokolakis, Costas, Guinle, Thierry, Vergos, George, Tziavos, Ilias, Cullen, Robert

“…This work presents the latest calibration results for the Copernicus Sentinel-3A and -3B and the Jason-3 radar altimeters as determined by the Permanent…”
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Geoid Studies in Two Test Areas in Greece Using Different Geopotential Models towards the Estimation of a Reference Geopotential Value by Grigoriadis, Vassilios N., Andritsanos, Vassilios D., Natsiopoulos, Dimitrios A., Vergos, Georgios S., Tziavos, Ilias N.

“…In the present study, we first examine the contribution of different, satellite-only or combined, global geopotential models in geoid computation employing the…”
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GOCE Downward Continuation to the Earth’s Surface and Improvements to Local Geoid Modeling by FFT and LSC by Natsiopoulos, Dimitrios A., Mamagiannou, Elisavet G., Pitenis, Eleftherios A., Vergos, Georgios S., Tziavos, Ilias N.

“…One of the main applications of the gravity field and steady-state Ocean Circulation Explorer (GOCE) satellite data is their combination with local gravity…”
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FIR, IIR and Wavelet Algorithms for the Rigorous Filtering of GOCE SGG Data to the GOCE MBW by Pitenis, Eleftherios, Mamagiannou, Elisavet, Natsiopoulos, Dimitrios A., Vergos, Georgios S., Tziavos, Ilias N., Grigoriadis, Vassilios N., Sideris, Michael G.

“…Gravity field and steady-state Ocean Circulation Explorer (GOCE) data are strongly affected by noise and long-wavelength errors outside the satellite…”
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Absolute Calibration of the European Sentinel-3A Surface Topography Mission over the Permanent Facility for Altimetry Calibration in west Crete, Greece by Mertikas, Stelios, Donlon, Craig, Féménias, Pierre, Mavrocordatos, Constantin, Galanakis, Demitris, Tripolitsiotis, Achilles, Frantzis, Xenophon, Kokolakis, Costas, Tziavos, Ilias, Vergos, George, Guinle, Thierry

“…This work presents calibration results for the altimeter of Sentinel-3A Surface Topography Mission as determined at the Permanent Facility for Altimetry…”
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A methodology for the performance evaluation of low-cost accelerometer and magnetometer sensors in geomatics applications by Patonis, Photis, Patias, Petros, Tziavos, Ilias N., Rossikopoulos, Dimitrios

“…This paper presents a methodology and its software implementation for the performance evaluation of low-cost accelerometer and magnetometer sensors for use in…”
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Gravity and geoid in the Mediterranean Sea: the GEOMED project by Tziavos, Ilias N.

“…The peculiar features of the Mediterranean Sea in terms of both gravity variations and geodynamic complexities resulted in a wide range of studies and research…”
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Remote Sensing and Geographic Information Systems (GIS) Contribution to the Inventory of Infrastructure Susceptible to Earthquake and Flooding Hazards in North-Eastern Greece by Theilen-Willige, Barbara, Savvaidis, Paraskevas, Tziavos, Ilias N., Papadopoulou, Ioanna

“…For civil protection reasons there is a strong need to improve the inventory of areas that are more vulnerable to earthquake ground motions or to…”
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Gravity data inversion for Moho depth modeling in the Hellenic area by Grigoriadis, Vassilios N., Tziavos, Ilias N., Tsokas, Grigorios N., Stampolidis, Alexandros

“…The main objective of this study is the determination of the Moho discontinuity in the Hellenic area based on gravity data inversion. High-resolution (2…”
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Fifteen Years of Cal/Val Service to Reference Altimetry Missions: Calibration of Satellite Altimetry at the Permanent Facilities in Gavdos and Crete, Greece by Mertikas, Stelios, Donlon, Craig, Féménias, Pierre, Mavrocordatos, Constantin, Galanakis, Demitris, Tripolitsiotis, Achilles, Frantzis, Xenophon, Tziavos, Ilias, Vergos, George, Guinle, Thierry

“…Satellite altimetry provides exceptional means for absolute and undisputable monitoring of changes in sea level and inland waters (rivers and lakes), over…”
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First preliminary results for the absolute calibration of the Chinese HY-2 altimetric mission using the CRS1 calibration facilities in West Crete, Greece by Mertikas, Stelios P., Zhou, Xinghua, Qiao, Fangli, Daskalakis, Antonis, Lin, Mingsen, Peng, Hailong, Tziavos, Ilias N., Vergos, George, Tripolitsiotis, Achilleas, Frantzis, Xenophon

“…In this work, absolute calibration of the Chinese HY-2 satellite altimetry mission is carried out, employing Pass No. 280 and the calibration facility, CRS1,…”
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Preliminary results of GOCE-based height system unification between Greece and Turkey over marine and land areas by Vergos, Georgios S., Erol, Bihter, Natsiopoulos, Dimitrios A., Grigoriadis, Vassilios N., Işık, Mustafa Serkan, Tziavos, Ilias N.

“…The unification of local vertical datums (LVDs) at a country-wide scale has gained significant attention lately due to the availability of GOCE-based global…”
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First Calibration Results for the SARAL/AltiKa Altimetric Mission Using the Gavdos Permanent Facilities by Mertikas, Stelios P., Daskalakis, Antonis, Tziavos, Ilias N., Vergos, George, Fratzis, Xenofon, Tripolitsiotis, Achilleas

“…This work presents the first calibration results for the SARAL/AltiKa altimetric mission using the Gavdos permanent calibration facilities. The results cover…”
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Development of a Web-based GIS monitoring and environmental assessment system for the Black Sea: application in the Danube Delta area by Tziavos, Ilias N., Alexandridis, Thomas K., Aleksandrov, Borys, Andrianopoulos, Agamemnon, Doukas, Ioannis D., Grigoras, Ion, Grigoriadis, Vassilios N., Papadopoulou, Ioanna D., Savvaidis, Paraskevas, Stergioudis, Argyrios, Teodorof, Liliana, Vergos, Georgios S., Vorobyova, Lyudmila, Zalidis, Georgios C.

“…In this paper, the development of a Web-based GIS system for the monitoring and assessment of the Black Sea is presented. The integrated multilevel system is…”
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Investigation of topographic reductions and aliasing effects on gravity and the geoid over Greece based on various digital terrain models by Tziavos, Ilias N., Vergos, G. S., Grigoriadis, V. N.

“…The reduction of gravity-field related quantities (e.g., gravity anomalies, geoid heights) due to the topography plays a crucial role in both geodetic and…”
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Using the SyNaRMa system as a disaster management tool by Papadopoulou, Ioanna D., Savvaidis, Paraskevas, Tziavos, Ilias N.

“…Natural disasters have a considerable effect in human, infrastructure and economy. In the case of a, e.g., catastrophic earthquake that happens and affects the…”
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GeoGravGOCE: A standalone MATLAB GUI for processing GOCE satellite gradient data by Mamagiannou, Elisavet, Pitenis, Eleftherios, Natsiopoulos, Dimitrios A., Vergos, Georgios S., Tziavos, Ilias N.

“…The exploitation of data from the Global Ocean Circulation Explorer (GOCE) mission still offers unique insights in Earth system processes despite the fact that…”
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Altimetry, bathymetry and geoid variations at the Gavdos permanent Cal/Val facility by Mertikas, Stelios P., Daskalakis, Antonis, Tziavos, Ilias N., Andersen, Ole B., Vergos, George S., Tripolitsiotis, Achilles, Zervakis, Vassilis, Frantzis, Xenofon, Partsinevelos, Panagiotis

“…The aim of this work has been to examine the relationship of steep bathymetry in the coastal areas around the permanent Cal/Val facility of Gavdos, and their…”
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