辐射沙脊群潮滩地形遥感遥测构建

发布时间：2018-03-16 00:13

本文选题：水边线　切入点：水位测站基线　出处：《海洋学报》2016年03期 　论文类型：期刊论文

【摘要】：潮滩地形是合理开发利用潮间带滩涂最重要的指标之一。滩涂水边线测量法是目前公认的具有可操作性的滩涂地形遥感测量方法。本文以水边线测量方法为基础,提出一种基于水位测站基线的潮滩地形遥感遥测构建方法。以江苏沿海大面积潮滩为研究区,将该区域自建的4座水位测站的连线作为水位测站基线,结合不同潮情下采集的遥感影像提取的滩涂水边线数据,通过水位测站基线计算滩涂水边线高程,从而构建出辐射沙脊群潮滩地形。采用实测地形数据进行检验,结果表明:构建的DEM能够反应当前潮滩的基本形态,平面精度达30m,垂直精度达20cm。
[Abstract]:Tidal flat topography is one of the most important indexes for the rational development and utilization of intertidal tidal flat. In this paper, a remote sensing remote sensing method of tidal flat topography based on the baseline of water level station is proposed. The line of 4 water level stations built in Jiangsu coastal area is taken as the baseline of water level station. Combined with the data of tidal flat edge line collected from remote sensing images under different tidal conditions, the elevation of tidal flat edge line was calculated by the baseline of water level station, and the tidal flat topography of radiative sand ridge group was constructed. The measured topographic data were used to test the results. The results show that the constructed DEM can reflect the basic shape of the current tidal flat with a plane accuracy of 30 m and a vertical accuracy of 20 cm.
【作者单位】：河海大学地球科学与工程学院;河海大学水文水资源学院;
【基金】：国家科技支撑计划(2012BAB03B01) 国家海洋公益性行业科研专项(201005006) 江苏省基础研究计划(自然科学基金)(BK2012414)
【分类号】：P715.7;P748

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