Geodetic and Geophysical Approach of the Gravitational field in Santorini Volcanic Group
Geodetic and Geophysical Approach of the Gravitational field in Santorini Volcanic Group
复制标题
圣托里尼火山群重力场的大地测量和地球物理方法
DOI：
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
D. Papanikolaou
中科院分区：
文献类型：
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作者：
Melissinos Paraskevas;D. Paradissis;Konstantinos Raptakis;P. Nomikou;Émilie;Hooft;D. Papanikolaou
圣托里尼位于希腊火山弧(南爱琴海)的中部，以青铜时代晚期的米诺斯喷发而闻名，这可能是克里特岛上伟大的米诺斯文明衰落的原因。雅典国立技术大学(NTUA)狄奥尼索斯卫星天文台于2012年12月和2014年9月在提拉、内亚卡梅尼、帕雷阿卡梅尼、锡拉西亚、阿斯普罗尼西和克里斯蒂安娜群岛的选定地点进行了地球重力测量。使用每个台站的原始重力数据计算了绝对重力值，并将其合并为一个数据集(2012-2014年)，因此，经过适当的数据校正和折减后，生成了完整的布格重力异常图。将结果与1976年7月DSO/NTUA的重力测量结果进行了比较，揭示了选定的常见地点的重力变化。2015年11月和12月在Proteus项目期间收集的海洋重力数据已经从俄勒冈大学分级，它们填充了重力数据集。利用剩余地形法和GRAVSOFT程序包，建立了一个具有地形和水深测量数据的数字高程模型(DEM)，用于计算圣托里尼火山群新的局部比例尺、似大地水准面和大地水准面(Forsberg，1994；Tscherning等人，1992)。模型的可靠性是通过独立测量的大地水准面高度进行评估的，例如已知三角点的GPS水准测量。
Santorini is located in the central part of the Hellenic Volcanic Arc (South Aegean Sea) and is well known for the Late-Bronze-Age “Minoan” eruption that might had been responsible for the decline of the great Minoan civilization on Crete island. Dionysos Satellite Observatory (DSO) of the National Technical University of Athens (NTUA) carried out terrestrial gravity measurements in December 2012 and in September 2014 at selected locations on Thira, Nea Kameni, Palea Kameni, Thirasia, Aspronisi and Christiana islands. Absolute gravity values were calculated using raw gravity data at every station to a combined dataset (2012-2014) and, consequently, complete Bouguer gravity anomaly maps were produced following the appropriate data corrections and reductions. The results were compared with gravity measurements that took place in July 1976 by DSO/NTUA and gravity variations at selected common locations were revealed. Marine gravity data that were collected during the PROTEUS project in November and December 2015 have been graded from University of Oregon and they fill the gravity dataset. An appropriate Digital Elevation Model (DEM) with topographic and bathymetric data was produced for the calculation of new, local scale, quasigeoid and geoid model in Santorini Volcanic Group using the residual terrain approach and the GRAVSOFT package (Forsberg, 1994; Tscherning et al., 1992). Reliability of the model was assessed with geoid heights from independent measurements such as GPS-leveling in known triangulation points.
影响因子：
18.3
作者：
M. Parks;J. Biggs;P. England;T. Mather;P. Nomikou;Kirill Palamartchouk;X. Papanikolaou;D. Paradissis;B. Parsons;D. Pyle;Costas Raptakis;V. Zacharis
通讯作者：
M. Parks;J. Biggs;P. England;T. Mather;P. Nomikou;Kirill Palamartchouk;X. Papanikolaou;D. Paradissis;B. Parsons;D. Pyle;Costas Raptakis;V. Zacharis
影响因子：
3.3
作者：
Battaglia, Maurizio;Gottsmann, Joachim;Fernandez, Jose
通讯作者：
Fernandez, Jose