海洋测绘2018，Vol.38Issue(1)：10-13,22,5.DOI:10.3969/j.issn.1671-3044.2018.01.003
IGDR数据用于高度计定标先期计算的可行性
Feasibility of Calibration Computing Using IGDR Preliminarily
摘要
Abstract
Aiming at the planning calibration campaign of Jason-3 satellite altimeter,the feasibility of computing altimeter bias using IGDR (Interim Geophysical Data Record) preliminarily is analyzed.The direct absolute calibration method using GPS buoy is introduced,and the method of evaluating the above feasibility is designed.The difference between calibration results calculated by IGDR and GDR (Geophysical Data Record) is compared,utilizing the data passing through the 4 calibration sites around the world.The results show that two kinds of computed results have no obvious systematic bias,and the uncertainty of the difference is about 1 cm.Comparing to the standard error at 3cm level calculated through GDR by traditional calibration sites,the influence of this uncertainty on the consistency of computed results is small,IGDR can be used to calculate the altimeter bias preliminarily during the campaign.关键词
卫星测高/高度计定标/IGDR/定标试验/轨道高Key words
satellite altimetry/altimeter calibration/IGDR/calibration campaign/orbit height分类
天文与地球科学引用本文复制引用
管斌,孙中苗,刘晓刚,翟振和..IGDR数据用于高度计定标先期计算的可行性[J].海洋测绘,2018,38(1):10-13,22,5.基金项目
国家自然科学基金(41174017,41374083,41674082,41304022). （41174017,41374083,41674082,41304022）
