摘要
由于测量条件的特殊性,潮间带地形测量一直是测量工作中的难点:测量的完整性和精度难以得到保证,需要采用合理和切实可行的技术方案加以解决。论述了几种潮间带地形测量的技术方案和案例,结果表明,满足精度要求的三维GNSS控制网是进行潮间带地形测量的基础;以无人(有人)测船为平台的RTK三维水深测量系统能提高水深测量的精度和可靠性,消除动吃水的影响;无人机载激光雷达系统能直接测量淤泥滩涂的泥面高程;无人机低空摄影测量技术在进行滩涂测量时需要布设一定数量的像控点;气垫船可作为滩涂测量的载具和平台。本研究可为近海潮间带区域和河口感潮水域的测量工作提供参考。
Due to the particularity of survey conditions,the topographic survey of intertidal zone is difficult：the integrity and accuracy of measurement are difficult to guarantee,which need to use reasonable and practical technical solutions to solve.Some technical scheme and case for topographic survey of intertidal zone is discussed.The result indicates that,the threedimensional GNSS control network satisfying some accuraey is the basic and key work;the technology of RTK threedimensional bathymetry based unmanned or manned ship can improve the accuracy and reliability and can eliminate the effects of dynamic draft;the airborne laser scanning system can get the height information of intertidal zone directly;the technology of low altitude photogrammetry with unmanned aerial vehicle need enough photo control points;hovercrafts can be used as a kind of vehicle or platform for intertidal survey.This research can be a reference for survey in offshore intertidal zone and estuarine tidal waters.
作者
吴敬文
张正明
杜亚南
WU Jing-wen;ZHANG Zheng-ming;DU Ya-nan(Hydrology and Water Resources Survey Bureau of Yangtze River Estuary,Shanghai 200136,China;Surveying Products Quality Control Station of Jiangsu Technical Management,Nanjing Jiangsu 210013,China)
出处
《现代测绘》
2018年第2期44-47,共4页
Modern Surveying and Mapping
基金
上海市海洋局科研项目(沪海科2017-04)
关键词
潮间带
地形测量
多技术融合
机载激光雷达
无人机
低空摄影测量
intertidal zone
topography survey
multi technology fusion
airborne laser scanning system
unmanned aerialvehicle
low altitude photogrammetry
