物探与化探Issue(3)：602-605,4.DOI:10.11720/wtyht.2015.3.28
Surfer 网格化与白化处理在数据扩边中的应用--以1∶5万水系沉积物测量成图为例
The application of gridding and blank processing of Surfer:A case study of the mapping data extension processing of 1 ∶50 000 geological stream sediment survey
摘要
Abstract
For maximally preserving original information in data mapping of 1 ∶50 000 geochemical stream sediment survey, the trian⁃gulation of MapGIS is generally used to draw flat contour map; nevertheless, because of distribution, the mapsheet edge cannot be effectively controlled, and hence the map is frequently incomplete. By using the discrete data gridding of golden software Surfer to in⁃terpolate the non⁃uniform distribution data of 1 ∶50 000 geochemical stream sediment survey, and using the blank to performing exten⁃sion processing of the interpolation data, we can reduce the extrapolation area of the discrete data gridding. Using the triangulation of MapGIS to draw geochemical map with the extended data, we can solve the problem of incomplete filling mapsheet in the triangula⁃tion drawing of the flat contour map, thus guaranteeing the originality, truth and completion of the geochemical map.关键词
Surfer/离散数据网格化/扩边/白化/水系沉积物测量/地球化学图件Key words
Surfer/discrete data gridding/extension processing/blank/geochemical stream sediment survey/geochemical map分类
天文与地球科学引用本文复制引用
吴卫国..Surfer 网格化与白化处理在数据扩边中的应用--以1∶5万水系沉积物测量成图为例[J].物探与化探,2015,(3):602-605,4.基金项目
中国地质调查局战略性矿产资源远景调查项目 （）
