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MODELING THE RESPONSE OF THE MEDITERRANEAN SEA LEVEL TO GLOBAL AND REGIONAL CLIMATIC PHENOMENA

机译:模拟地中海海平面对全球和区域气候现象的响应

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摘要

The exploitation of satellite altimetry data from past and current satellite missions is crucial to both oceanographic and geodetic applications. This work presents a correlation analysis of Jason-1, Jason-2 and CryoSat-2 Sea Level Anomalies (SLAs) with global and regional climatic indexes that influence the ocean state. The Southern Oscillation Index, North Atlantic Oscillation index and Mediterranean Oscillation Index have been investigated, as representative of climate-change and seasonal forcing on the sea level. The raw data used are SLA values from Jason-1, Jason-2 (2002-2014) and CryoSat-2 (2010-2014) over the entire Mediterranean Basin. The possible correlation is investigated in seasonal and monthly scale, while a regional multiple regression and a principal component analysis between the SLAs and oscillation indexes is carried out. Finally, evidence of the sea level cyclo-stationarity in the Mediterranean Sea is deduced from the analysis of empirically derived covariance functions at monthly intervals from the available SLA data.
机译:从过去和现在的卫星任务中获取卫星测高数据对海洋学和大地测量应用都至关重要。这项工作提出了Jason-1,Jason-2和CryoSat-2海平面异常(SLA)的相关性分析,这些异常与影响海洋状况的全球和区域气候指数有关。已经对南方涛动指数,北大西洋涛动指数和地中海涛动指数进行了调查,以代表气候变化和海平面的季节性强迫。使用的原始数据是整个地中海盆地中Jason-1,Jason-2(2002-2014)和CryoSat-2(2010-2014)的SLA值。在季节和月度尺度上研究了可能的相关性,同时进行了SLA和振荡指标之间的区域多元回归和主成分分析。最后,从可用的SLA数据按月间隔对根据经验得出的协方差函数进行分析,得出了地中海海平面周期性平稳的证据。

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  • 来源
  • 会议地点 Prague(CZ)
  • 作者单位

    Aristotle University of Thessaloniki, Department of Geodesy and Surveying, Thessaloniki, GR-54124, Greece, Email: dnatsio@topo.auth.gr;

    Aristotle University of Thessaloniki, Department of Geodesy and Surveying, Thessaloniki, GR-54124, Greece, Email: vergos@topo.auth.gr;

    Aristotle University of Thessaloniki, Department of Geodesy and Surveying, Thessaloniki, GR-54124, Greece, Email:tziavos@topo.auth.gr;

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