河南科学
河南科學
하남과학
HENAN SCIENCE
2013年
7期
1039-1044
,共6页
刘强%陶钧%刘旭%余翔%尉伯虎
劉彊%陶鈞%劉旭%餘翔%尉伯虎
류강%도균%류욱%여상%위백호
克里金插值法%半变异函数模型%地磁图%格网化
剋裏金插值法%半變異函數模型%地磁圖%格網化
극리금삽치법%반변이함수모형%지자도%격망화
Kriging interpolation method%semivariogram model%geomagnetic map%gridding
论述了克里金法的插值原理,通过分析样本数据,合理地选取半变异函数模型,对实测磁法数据进行了克里金插值,并通过交叉验证将其与其他常用插值方法进行了精度评价。实验结果表明,普通克里金插值法获得的地磁格网化数据具有更高的验证精度,能够更好地反映区域地磁特性。
論述瞭剋裏金法的插值原理,通過分析樣本數據,閤理地選取半變異函數模型,對實測磁法數據進行瞭剋裏金插值,併通過交扠驗證將其與其他常用插值方法進行瞭精度評價。實驗結果錶明,普通剋裏金插值法穫得的地磁格網化數據具有更高的驗證精度,能夠更好地反映區域地磁特性。
논술료극리금법적삽치원리,통과분석양본수거,합리지선취반변이함수모형,대실측자법수거진행료극리금삽치,병통과교차험증장기여기타상용삽치방법진행료정도평개。실험결과표명,보통극리금삽치법획득적지자격망화수거구유경고적험증정도,능구경호지반영구역지자특성。
In this paper the author discusses the interpolation rationale of Kriging,selects semivariogram model appropriately after the analysis of sampled data,and conducts the Kriging interpolation of measured magnetic data. The accuracy of the Kriging interpolation is also compared with that of other interpolation methods through cross validation,and the comparison shows that the geomagnetic gridding data acquired through common Kriging interpolation are of higher accuracy and can reflect better the characteristics of regional geomagnetism.