The behavior of a lithospheric magnetization and magnetic field model

作     者：PengFei Liu Yi Jiang Qing Yan Ann MHirt PengFei Liu;Yi Jiang;Qing Yan;Ann M.Hirt

作者机构：State Key Laboratory of Lunar and Planetary SciencesMacao University of Science and TechnologyMacaoChina CNSA Macao Center for Space Exploration and ScienceMacaoChina Institute of GeophysicsETH ZürichSonneggstrasse 5CH-8095 ZürichSwitzerland 

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：66-73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] 0705[理学-地理学] 0816[工学-测绘科学与技术] 0702[理学-物理学] 

基　　金：supported by the Macao Foundation by the Preresearch Project on Civil Aerospace Technologies No.D020308/D020303 funded by China National Space Administration by the Macao Science and Technology Development Fund,grant No.0001/2019/A1 PF Liu is funded by the Science and Technology Development Fund,Macao SAR(File No.0002/2019/APD)。 

主　　题：vertically integrated magnetization lithospheric magnetic field field model MSS-1 

摘      要：The Earth’s“lithosphereis its outer shell,made up of the Earth’s crust and outermost mantle.The part of the Earth’s magnetic field that originates in the lithosphere consists of a superposition of magnetic anomalies with a broad spectrum of sizes and intensities,which arise from geological and tectonic features.The lithospheric magnetic field is known from surface observations,and on larger scales from above-surface measurements.The increase in recent decades of satellites dedicated to measuring the Earth’s magnetic field has improved significantly our models of the Earth’s magnetic environment.Based on these increasing observations,a number of comprehensive field models have been constructed,some of which focus solely on the lithosphere,such as the MF model series.We present a map of lithospheric magnetic anomalies at 400 km altitude,based on a vertically integrated magnetization model.This height was chosen because it is the expected orbital altitude of the Macao Science Satellite-1(MSS-1)mission.The model presented herein indicates that the amplitude of the lithospheric anomalies at 400 km altitude is between-14.8 n T and 18.2 n T.This information is useful because it provides a reference for the lithospheric source of the Earth’s magnetic field that contributes to the magnetic measurements made from satellite instruments.The low inclination orbit of the MSS-1 mission will provide information that is sensitive to lateral variation within the lithosphere;these variations arise from plate tectonic features with longitudinal extent.In conclusion,the new MSS-1mission will provide valuable information in detecting compositional variations in the lithosphere,and in delineating large-scale geological structures.