顾及地壳密度模型的Airy-Heiskanen均衡重力异常的计算  

COMPUTATION OF AIRY-HEISKANEN ISOSATIC GRAVITY ANOMALY WITH CONSIDERING CRUST DENSITY MODEL

作　　者：胡敏章[1] 李建成[1] 

机构地区：[1]武汉大学测绘学院,武汉430079

出　　处：《大地测量与地球动力学》2010年第5期48-52,共5页Journal of Geodesy and Geodynamics

基　　金：国家自然科学基金(40637034)

摘　　要：分析了地表沉积层、地壳内部密度异常和Moho面起伏对重力异常的影响,提出采用CRUST2.0提供的地壳密度来取代传统的重力归算中的地壳和地幔密度常数,采用Airy-Heiskanen均衡模型进行均衡重力异常的计算,讨论引入CRUST2.0带来的影响。The impact of surface sediments, crustal density anomaly and Moho surface fluctuations on the gravity anomalies are analyzed. During the calculation of gravity anomaly the density provided by CRUST2.0 is used to replace the traditional constant of crustal and mental density. Moreover, the isostatic gravity anomaly with Ary-Heiskanen isostatic model and CRUST2.0 is calculated, and the impact of the introduction of CRUST2.0 is discussed.

关 键 词：CRUST2.0 均衡 重力归算 地壳密度 沉积层 

分 类 号：P315.72[天文地球—地震学]