CAJ | 학술논문

在运用重力和重力梯度资料反演 Moho 面时，关键步骤之一即是从原始测量信号精确提取只包含该层面单一密度信息的扰动(异常)值。本文主要工作有：①为减小 GEMMA Moho 团队的点质量模型计算误差而采用正演精度更高的空间域 Tesseroid 单元体和频谱域球谐分析与综合方法，并对这两种方法进行了结果对比；②如何合理利用地壳先验模型资料。本文中最后提供了基于 GOCO03S模型可以用于后续 Moho 面反演的重力梯度主对角线分量的全球扰动值，并对所有试验数据进行了讨论和分析。
재운용중력화중력제도자료반연 Moho 면시，관건보취지일즉시종원시측량신호정학제취지포함해층면단일밀도신식적우동(이상)치。본문주요공작유：①위감소 GEMMA Moho 단대적점질량모형계산오차이채용정연정도경고적공간역 Tesseroid 단원체화빈보역구해분석여종합방법，병대저량충방법진행료결과대비；②여하합리이용지각선험모형자료。본문중최후제공료기우 GOCO03S모형가이용우후속 Moho 면반연적중력제도주대각선분량적전구우동치，병대소유시험수거진행료토론화분석。
Using gravity/ gravity gradient data for Moho inversion,one of the key steps is how to extract the Moho information data precisely from raw measurements.Here we mainly discussed:① In order to el iminate the error of point mass model used by GEMMA Moho research team,we choose Tesseroid in space domain and harmonic analysis and synthesis method in frequency domain;②The reasonable use of priori crustal model.Based on GOCO03S model,we provide the gravity gradient disturbing results of three main components which are for Moho inversion.Final ly,al l experiment results are discussed and analyzed in this paper.