海洋测绘2018，Vol.38Issue(2)：5-7,3.DOI:10.3969/j.issn.1671-3044.2018.02.002
借助EGM2008的海域重力异常反距离加权插值算法
An Inverse Distance Interpolation Algorithm of Marine Gravity Anomaly Uniting EGM2008 Gravity Field Model
摘要
Abstract
The construction of high-precision and high-resolution gravity anomaly model is one of the key steps in the application of ocean gravity measurement data to global elevation baseline and underwater gravity matching navigation.The inverse distance weighted interpolation algorithm uses only the spatial information of the gravity observations in the sea area,but does not take into account the physical characteristics of the gravity observations.An inverse distance interpolation algorithm is proposed based on the gravity field model of the EGM2008 gravity model.Based on the numerical model of gravity anomaly DTU10,the gridding experiment of gravity data of sea area is designed.The results show that the proposed algorithm can effectively improve the calculation precision of gravity anomalies grid model.关键词
海洋重力测量/海域重力异常格网模型/反距离加权插值算法/EGM2008重力场模型/DTU10重力异常数值模型Key words
marine gravity survey/marine gravity anomalous grid model/inverse distance weighted interpolation algorithm/EGM2008 gravity field model/DTU10 gravity anomaly numerical model分类
天文与地球科学引用本文复制引用
曾敏,汪振华,邓凯亮,何水原..借助EGM2008的海域重力异常反距离加权插值算法[J].海洋测绘,2018,38(2):5-7,3.基金项目
国家重点研发计划(2016YFC0303007,2016YFB0501704) （2016YFC0303007,2016YFB0501704）
国家自然科学基金(41474012,41374018) （41474012,41374018）
国家重大科学仪器设备开发专项(2011YQ12004503) （2011YQ12004503）
国防973计划(613219). （613219）
