基于NAO99b全球海潮模型、NAO99Jb区域海潮模型、验潮站资料和SRTM地形数据确定的高空间分辨率海陆边界数据，构建我国沿海和岛屿高精度重力海潮负荷改正模型。以马祖岛为例介绍该模型，并采用实测的绝对重力测量资料进行验证。结果表明，经该模型改正后的重力观测精度明显提高。"/>
In this study, we construct the correction model of OTL gravity in coastal area and islands based on the NAO99b global ocean tide model, NAO99Jb regional ocean tide model, data record in tide gauge, as well as the high spatial resolution land-sea boundary extracted from the SRTM digital terrain model. As an example, the correction model for Matzu island is introduced and validated by the absolute gravity observations. The results show that the correction model would be more accurate than before."/>
Correction Model of Ocean Tide Loading on Gravity over Coastal Area and Islands: A Case Study of Matzu Island
Abstract In this study, we construct the correction model of OTL gravity in coastal area and islands based on the NAO99b global ocean tide model, NAO99Jb regional ocean tide model, data record in tide gauge, as well as the high spatial resolution land-sea boundary extracted from the SRTM digital terrain model. As an example, the correction model for Matzu island is introduced and validated by the absolute gravity observations. The results show that the correction model would be more accurate than before.
WANG Jigang,ZHOU Jiangcun. Correction Model of Ocean Tide Loading on Gravity over Coastal Area and Islands: A Case Study of Matzu Island[J]. jgg, 2020, 40(8): 794-798.
WANG Jigang,ZHOU Jiangcun. Correction Model of Ocean Tide Loading on Gravity over Coastal Area and Islands: A Case Study of Matzu Island[J]. jgg, 2020, 40(8): 794-798.
