基于高精度DOM和DEM的消落带分类——以三峡库区巫山县大宁河口段为例  

Water-level-fluctuating Zone Classification Based on High Precision DOM and DEM:Taking Daning Estuary of Wushan County in Three Gorges Reservoir as An Example

作　　者：聂成顺 张中俭[1] 王珊珊 NIE Chengshun;ZHANG Zhongjian;WANG Shanshan(School of Engineering and Technology,China University of Geosciences,Beijing 100083,China;China Aero Geophysical Survey and Remote Sensing Center for Natural Resources,Beijing 100083,China)

机构地区：[1]中国地质大学(北京)工程技术学院,北京100083 [2]中国自然资源航空物探遥感中心,北京100083

出　　处：《遥感信息》2020年第6期92-98,共7页Remote Sensing Information

摘　　要：将消落带按岩土组成进行分类可划分为岩质、岩土质和土质消落带,能为岸坡工程活动提供基础数据。针对消落带传统分类方式以实地踏勘为主,费时费力的问题,文章提出一种基于高精度DOM和DEM,将监督分类和决策树分类相结合,把消落带划分为岩质、岩土质和土质的分类方法,并以三峡库区巫山县大宁河口段为例进行验证。验证结果表明,相较于传统分类方法,该方法对消落带的分类不但更加精细,还能对实地踏勘难以到达的消落带进行分类,具有分类精细、全面、效率高以及节省人力物力的特点,在岸坡工程活动中能发挥重要作用。Classification of the water-level-fluctuating zone according to the composition of rock and soil can be divided into rocky,rock-soil and soil water-level-fluctuating zone,which can provide basic data for the prevention of bank slope engineering activities.The traditional classification method of the water-level-fluctuating zone is mainly based on field surveys,which is time-consuming and laborious.In response to this problem,this paper proposes a classification method based on high-precision DOM and DEM,using supervised classification and decision tree classification,to divide the water-level-fluctuating zone into rock,rock-soil and soil.Taking the Daning estuary of Wushan county in the Three Gorges Reservoir area as an example for verification,the results show that,compared with the traditional classification method,the proposed method can not only classify the water-level-fluctuating zone more finely,but also classify the water-level-fluctuating zone which is difficult to reach in the field survey.It has the characteristics of fine classification,comprehensiveness,high efficiency,and saving manpower and material resources,and it can play an important role in bank slope engineering activities.

关 键 词：DOM DEM 监督分类 决策树分类 消落带分类 

分 类 号：TP753[自动化与计算机技术—检测技术与自动化装置]