Geoid interpolation in Gongzhuling City and the 1cm quasi geoid refinement

作     者：WANG Yongchun ZHONG Linshan ZHAO Han WU Qiong WANG Yongchun;ZHONG Linshan;ZHAO Han;WU Qiong

作者机构：Tianjin Best Marine Geo-Technology Co.Ltd.Tianjin 300457China School of Geodesy and GeomaticsWuhan UniversityWuhan 430079China College of Geo-exploration Science and TechnologyJilin UniversityChangchun 130026China 

出 版 物：《Global Geology》 (世界地质（英文版）)

年 卷 期：2024年第27卷第4期

页      面：207-215页

学科分类：08[工学] 081601[工学-大地测量学与测量工程] 0816[工学-测绘科学与技术] 

主　　题：geoid resolution RCR technique interpolation 

摘      要：The refinement of the 1cm geoid holds significant importance in engineering applications,where the accuracy of the geoid is frequently constrained by its ***,there has been limited exploration into the specific relationship between geoid resolution and *** article aims to address this gap by thoroughly examining said *** study employs the CapRCR modification to calculate the geoid of Gongzhuling *** findings indicate that the accuracy can be enhanced by 2%to 9%through encryption of the geoid resolution from 2.5′×2.5′to 1.5′×1.5′.Furthermore,this improvement can be augmented by 15%to 21%through encryption of the gravity anomaly to the same *** accuracy of the geoid exhibits a linear relationship with the resolution of gravity *** theoretical accuracy of the geoid,excluding integration errors,is determined to be 1.21 *** engineering applications,opting for a resolution of 30 ×30 can result in the geoid containing only an integration error of 2 ***,to attain an accuracy of 1 cm,it becomes imperative to further mitigate data ***,the final refined quasi-geoid accuracy is established at 0.56 mm.