摘要
海洋磁力测量多站日变改正中,为了使整个测区磁场水平统一,必须以主站为基准对分站日变基值进行归算。对多站日变改正中日变基值的归算方法进行了研究,给出了多站日变改正基值归算公式。结论表明:当主站和分站日变基值都采用平均值法时,分站日变基值不需要向主站进行归算;而采用其他方法时(如基时刻或基时段法),为了使整个测区磁场水平统一,必须对分站日变基值进行归算。
To unify the magnetic field level of the whole area in marine geomagnetism surveying, the base value of the secondary base station must be reduced to the main base value. In this paper, the reduction method of the base value is studied and the reduction formula is presented. The conclusion shows that when the base value and secondary stations are both determined by the average method, the base value of the secondary needn＇ t reduce to the main station. While determined by other methods （ base-time or base-period）, the base value must be reduced to the main base station.
出处
《海洋测绘》
2007年第3期1-4,共4页
Hydrographic Surveying and Charting
基金
国家自然科学基金项目(400710710)
辽宁工程技术大学地理空间信息技术与应用实验基金项目(2005002)
关键词
海洋磁力测量
多站日变改正
基值归算
marine geomagnetism surveying
multi-stations geomagnetic diurnal variation correction
the reduction of the base value
