基于地面激光扫描仪的潮滩地貌研究初探

发布时间：2018-07-06 09:55

本文选题：地面激光扫描仪(TLS) + 潮滩　；参考：《海洋通报》2016年03期

【摘要】：传统潮滩地貌的研究方法难以刻画潮滩的微观地貌特征,地面激光扫描仪(TLS)的应用为潮滩地貌的研究提供了新的切入点,然而目前关于TLS在潮滩地貌研究中鲜有报道。以江苏东灶港海岸一段潮滩地貌为研究对象,基于野外扫描数据,对扫描区域的点云数据进行精度评估,并尝试利用反距离加权插值(IDW)与克里金插值(Kriging)方法构建了潮滩地貌的数字高程模型(DEM)。研究结果表明:(1)通过点云数据构建的DEM数据能够实现潮滩地貌的定量模拟;(2)利用IDW插值可以便捷高效构建潮滩海量数据点的DEM;(3)利用TLS量化短期地貌变化如潮汐沉积旋回效果并不好。本研究可为利用TLS在潮滩微观地貌中的量化研究提供参考。
[Abstract]:The traditional research method of tidal flat geomorphology is difficult to depict the micro-geomorphological characteristics of tidal flat. The application of ground laser scanner (TLS) provides a new breakthrough point for the study of tidal flat geomorphology. However, there are few reports on TLS in tidal flat geomorphology research at present. Based on the field scanning data, the accuracy of the point cloud data in the scanning area is evaluated based on the tidal flat landforms along the coast of Dongzhao Port, Jiangsu Province. The inverse distance weighted interpolation (IDW) and Kriging interpolation (Kriging) are used to construct the digital elevation model (Dem) of tidal flat landforms. The results show that: (1) Dem data constructed by point cloud data can realize quantitative simulation of tidal flat geomorphology; (2) IDW interpolation can be used to construct demm of tidal flat mass data points conveniently and efficiently; (3) TLS can be used to quantify short-term geomorphologic changes such as tidal subsidence. The effect of accumulation cycle is not good. This study can be used as a reference for the quantitative study of TLS in tidal flat microtopography.
【作者单位】：南京师范大学地理科学学院;南京旅游职业学院;南京林业大学土木工程学院;
【基金】：中国博士后科学基金面上项目(2012M511298)
【分类号】：P714.7

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