摘要
海底底质图是表示海底底质类型、性质、分布特征、相互联系、动态变化等各种底质要素的专题地图,是海底地形多样牝表示的一种重要形式和产品。本文基于海底底质数据,论述了海底底质可视化表达的分类原则和海底底质符号的构成,给出了在不同应用场景下的四种海底底质可视化表达方法。用1:5万海底底质数据进行了可视化试验,结果表明,本文设计的海底底质表示方法简单易辨,能有效实现对不同类型海底底质数据的表示,用户能直观、准确地了解所在区域的海底底质情况。
Seafloor sediment map is a thematic map showing the types,properties,distribution characteristics,interconnections and dynamic changes of multiple seafloor features.It is an important form and product of diverse representation of seafloor topography.Based on the data of seafloor sediment,the classification principles and composition of seafloor sediment symbols are discussed in this paper,and four visual expression methods of seafloor sediment in different application scenarios are proposed.The visualization test of 1:50000 seafloor sediment data has verified that this method can effectively realize the representation of different types of seafloor sediment data,and users can intuitively and accurately observe the seafloor sediment situation in the region.
作者
吴芳华
张羿祺
王磊
马超
WU Fanghua;ZHANG Yiqi;WANG Lei;MA Chao(Xi'an Research Institute of Surveying and Mapping,Xi'an 710054,China;State Key Laboratory of Geo-Information Engineerings Xi'an 710054,China;School of Resource and Environmental Sciences,Wuhan University,Hubei 430072,China;Xi'an Aerospace Remote Sensing Data Technology Co.,Ltd.,Xi'an,710061,China)
出处
《测绘科学与工程》
2019年第4期46-50,共5页
Geomatics Science and Engineering
关键词
海底底质
底质分类
海底底质图
专题海图
可视化表达
seafloor sediment
seafloor sediment classification
seafloor secliinent map
thematic chart
visual representation
作者简介
吴芳华(1965-),女,研究员,硕士,主要从事地图制图与地理信息工程研究。
