摘要
就极空白对三类重力梯度边值问题球谐分析解的影响进行了定性探讨和定量分析,结果表明,基于球面边界的垂直-垂直重力梯度边值问题球谐分析解的零次项、垂直-水平重力梯度边值问题球谐分析解的一次项、水平-水平重力梯度边值问题球谐分析解的二次项受极空白问题的影响最为显著。
The relationship between polar gaps problem and three types of gravity gradiometry boundary value problem is discussed from qualitative and quantitative point of view.The simulation result shows that the zonal items of the spherical harmonic analysis solution of vertical-vertical gradiometry boundary value problem in the sphere,the one-order items of the spherical harmonic analysis solution of vertical-horizontal gradiometry boundary value problem and the two-order items of the solution of horizontal-horizontal boundary value problem are influenced mostly by polar gaps problem respectively.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2012年第3期290-293,共4页
Geomatics and Information Science of Wuhan University
基金
国家863计划资助项目(2007AA12Z346)
国家自然科学基金资助项目(40874012
40904003
41004007
40974016)
关键词
极空白
重力梯度
边值问题
球谐分析
polar gaps
gravity gradiometry
boundary value problem
spherical harmonic analysis
