Satellite Measured Ionospheric Magnetic Field Variations over Natural Hazards Sites

Remote Sensing

Pier F. Biagi¹  Roland Lammegger²  Xuhui Shen³  Bingjun Cheng⁴  Bin Zhou⁴  Jindong Wang⁴  Maria Solovieva⁵  Christoph Schirninger⁶  Mohammed Y. Boudjada⁶  Magda Delva⁶  Hans U. Eichelberger⁶  Andreas Pollinger⁶  Werner Magnes⁶  Konrad Schwingenschuh⁶  Bruno P. Besser⁶ 

[1] Department of Physics, University of Bari, 70126 Bari, Italy;Institute of Experimental Physics, Graz University of Technology, 8010 Graz, Austria;National Institute of Natural Hazards, MEMC, Beijing 100085, China;National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China;Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, 123995 Moscow, Russia;Space Research Institute, Austrian Academy of Sciences, Schmiedlstraße 6, 8042 Graz, Austria;

关键词: CSES;    Swarm;    earthquake;    volcano;    natural hazards;    ionosphere;   

DOI  :  10.3390/rs13122360

来源: DOAJ

【 摘 要 】

Processes and threats related to natural hazards play an important role in the evolution of the Earth and in human history. The purpose of this study is to investigate magnetic field variations measured at low Earth orbit (LEO) altitudes possibly associated with earthquakes, volcanic eruptions, and artificial outbursts. We focus on two missions with well equipped magnetometer packages, the China Seismo-Electromagnetic Satellite (CSES) and ESA’s three spacecraft Swarm fleet. After a natural hazards survey in the context of this satellites, and consideration of external magnetospheric and solar influences, together with spacecraft interferences, wavelet analysed spatio-temporal patterns in ionospheric magnetic field variations related to atmospheric waves are examined in detail. We provide assessment of the links between specific lithospheric or near surface sources and ionospheric magnetic field measurements. For some of the diverse events the achieved statistical results show a change in the pattern between pre- and post-event periods, we show there is an increase in the fluctuations for the higher frequency (smaller scales) components. Our results are relevant to studies which establish a link between space based magnetic field measurements and natural hazards.

【 授权许可】

Unknown