地球与行星物理论评(中英文)2024,Vol.55Issue(5):513-523,11.DOI:10.19975/j.dqyxx.2023-045
基于数字高程模型的月球精细重力场建模研究进展
Development of the fine lunar gravity field modeling with digital elevation model
摘要
Abstract
The fine modeling of the lunar gravity field is a fundamental task for establishing lunar altitude refe-rences,conducting research on lunar interior structure,and other scientific endeavors.The lunar gravity field mod-el constructed solely based on spacecraft orbit data has limited spatial resolution,making it challenging to meet the demands of fine gravity field research.The acquisition of high-resolution terrain models presents new opportuni-ties for the study of precise lunar gravity fields.This paper reviews the current status and advancements in fine lu-nar gravity field modeling,including research efforts and evaluation methods for global lunar gravity field models,principles and technologies for fine gravity field modeling,as well as related research outcomes.On this basis,this paper systematically summarizes the key theoretical issues and technical challenges in the theory of lunar gravity field modeling based on high-resolution terrain models.These include data updating,error correction in high-fre-quency gravity field modeling,calculation efficiency,and the series divergence problem in spherical harmonic ana-lysis.In addition,future research directions are discussed.This work will provide references for gravity field re-search on the Moon and other terrestrial planets.关键词
月球重力场/数字高程模型(DEM)/残差地形模型(RTM)/重力场模型评估Key words
lunar gravity field/digital elevation model(DEM)/residual terrain modeling(RTM)/evaluation of gravity field model分类
测绘与仪器引用本文复制引用
杨萌,张宝玉,燕兴元,李媛,张吴明,钟敏,冯伟..基于数字高程模型的月球精细重力场建模研究进展[J].地球与行星物理论评(中英文),2024,55(5):513-523,11.基金项目
中国科学院战略性先导科技专项(B类)(XDB 41000000) (B类)
"精密重力测量国家重大科技基础设施"项目Supported by the Strategic Priority Research Program of Chinese Academy of Sciences(Grant No.XDB41000000)and the National Precise Gravity Measurement Facility,China (Grant No.XDB41000000)