辐射沙脊群地貌结构遥感解析  

Geomorphologic Structure Analysis of Radial Sand Ridges

作　　者：丁贤荣[1] 周虹宏[1] 康彦彦[2] 

机构地区：[1]河海大学水文水资源学院,江苏南京210098 [2]河海大学港口海岸及近海工程学院,江苏南京210098

出　　处：《地理与地理信息科学》2014年第4期32-35,41,F0002,共6页Geography and Geo-Information Science

基　　金：国家科技支撑计划(2012BAB03B01);国家海洋公益性行业科研专项经费项目(201005006-3);江苏省研究生创新计划(2013B20814)

摘　　要：针对辐射沙脊群动力地貌结构问题,在近海地形与动力资料匮乏的条件下,利用卫星遥感影像,采用地貌骨架特征线的方法,研究了辐射沙脊群潮流沙脊的地貌结构要素,包括沙脊线走向、沙洲走向、偏移方式、方向、角度等,揭示了辐射沙脊群特殊的羽翼状地貌结构。该研究从地貌特征线入手,深化了对辐射沙脊群地貌的认识,对进一步探究动力地貌演变提供了依据。Due to lack of the contemporary hydrographic and bathymetric data,details of the dynamic geomorphology structure are rarely studied.In this paper,based on remote sensing images,morphological skeleton line was introduced to illustrate structure elements of sand ridges.The elements such as the trend of sand ridges,the trend of sandbars,offset direction and angular separation were calculated.The result showed that wing-feather shape of geomorphologic structure was the main characteristic in radial sand ridges.From this study,we will not only deepen the understanding of dynamic geomorphology of radial sand ridges and also obtain the basis for further exploring the geomorphology evolution.

关 键 词：地貌骨征线 羽翼状结构 辐射沙脊群 遥感 

分 类 号：P737[天文地球—海洋地质]