CAJ | 학술논문

研究了海洋磁力测量多站日变改正值的计算方法,采用多站同步实例分析了加权平均法和函数拟合法在海洋磁力测量地磁日变改正中的应用,探讨了适合海洋磁力测量特点的多站日变改正值计算方法.结论表明:加权平均法和函数拟合法是多站日变改正值计算的有效方法.忽略经度效应的影响,采用纬距加权或纬度坐标拟合,可以改善加权平均法或函数拟合法效果.海洋磁力测量日变站大多建在测区附近的沿岸,导致多个日变站网的图形结构较差,建议采用纬距加权平均法.
연구료해양자력측량다참일변개정치적계산방법,채용다참동보실례분석료가권평균법화함수의합법재해양자력측량지자일변개정중적응용,탐토료괄합해양자력측량특점적다참일변개정치계산방법.결론표명:가권평균법화함수의합법시다참일변개정치계산적유효방법.홀략경도효응적영향,채용위거가권혹위도좌표의합,가이개선가권평균법혹함수의합법효과.해양자력측량일변참대다건재측구부근적연안,도치다개일변참망적도형결구교차,건의채용위거가권평균법.
The computation method of multi-station geomagnetic diurnal variation correction have been studied. The applicability of the weighted mean value method and function fitting method have been analyzed by the synchronously observed data. The method which are fit for the characteristics of marine magnetic survey has been brought forward. The conclusion show that both two method are effective in multi-station geomagnetic diurnal variation correction. With the neglect of longitudinal effect, the precision of both method can be greatly improved. Considered the graphic structures of the base stations in marine magnetic surveys, the weighted mean value with latitudinal distance are advised to computation of correction value.