A novel geomagnetic satellite constellation:Science and applications

作     者：Keke Zhang Keke Zhang

作者机构：State Key Laboratory of Lunar and Planetary SciencesMacao University of Science and TechnologyCNSA Macao Center for Space Exploration and ScienceMacaoChina 

出 版 物：《Earth and Planetary Physics》 (地球与行星物理（英文版）)

年 卷 期：2023年第7卷第1期

页      面：4-21页

核心收录：

学科分类：070801[理学-固体地球物理学] 07[理学] 0708[理学-地球物理学] 0804[工学-仪器科学与技术] 0816[工学-测绘科学与技术] 0706[理学-大气科学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：K Zhang is supported by Macao Science and Technology Development Fund grant 0001/2019/A1 Macao Foundation the preresearch Project on Civil Aerospace Technologies of CNSA(Grants No.D020303 and D020308) 

主　　题：core dynamo geomagnetic field mantle ocean ionosphere magnetosphere 

摘      要：The European Space Agency(ESA)’s Swarm constellation of a trio of geomagnetic survey satellites in nearly circular polar orbits at altitude about 500 km was launched on 22 November 2013 and has been mapping the Earth’s global magnetic field in unprecedented details,helping scientists better understand how the geomagnetic field is generated and maintained inside the Earth’s fluid core and how the Earth’s external magnetic environment is *** review discusses a new novel constellation of the geomagnetic survey satellites that consists of at least four satellites:two satellites are in lower-latitude and nearly circular orbits at altitude about 450 km;two further satellites are marked by nearly polar but strongly eccentric orbits with perigee about 200 km and apogee about 5000 *** new geomagnetic satellites are equipped with highly stable optical benches,high-precision fluxgate magnetometers and scalar magnetometers which are capable of mapping the Earth’s three-dimensional magnetic field in unprecedented accuracies and *** new constellation will help elucidate different contributions to the measured geomagnetic field:the core dynamo field,the lithospheric magnetic field,the magnetic fields produced by currents in the ionosphere and the magnetosphere as well as by the currents coupling the ionosphere and magnetosphere,and the magnetic fields induced from the electrically conducting mantle,lithosphere and *** comparison to the Swarm mission,it will provide higher-accuracy,higher-resolution and higher-dimension measurements of the geomagnetic field required for shedding new insights into the core dynamo processes and the Earth’s space magnetic systems along with a wide range of important applications.