摘要
以灾害地质出现的空间为主线,将海洋灾害地质因素分为海岸带灾害地质因素、海底表层灾害地质因素、浅层灾害地质因素以及构造灾害地质因素4大类型。利用数字化编图技术对新旧资料进行处理,运用多种技术手段确保编图质量;各灾害因素在MapGIS基础平台上以点、线、面3种图元表示,根据其类型进行分层设计并统一成图;并简要分析了区域海洋灾害地质因素的分布特征及范围,以期为我国海底勘测、科学研究及防灾减灾等工作提供基础资料。
Based on the spatial sequence of the hazardous geology,we classified the marine hazardous geology factors into four groups,which were coastal zone hazardous geology factors,surface hazardous geology factors,subsea shallow layer hazardous geology factors and tectonic hazardous geology factors.We used digital map compilation technology to process both the old and new data,different methods to guarantee the quality of maps.All hazardous geology factors were drawn on the MapGIS platform using point,line and polygons as legends and layers we designed according to their groups.Simply analysis about the distribution characters and rang of the hazardous geology factors after finishing the map.It is hoped that the map will help to support the basal data for domain in marine explore,research,preventing and reducing marine hazards and so on.
出处
《地理空间信息》
2013年第3期151-153,162,共4页
Geospatial Information
基金
国家海洋局海洋公益性行业科研专项资助项目(201005005)
关键词
地质灾害因素
南海北部
数字编图
MAPGIS平台
hazardous geology factors,northern South China Sea,digital mapping,MapGIS platform
