Landsat8-OLI深蓝波段用于近海泥沙水质监测的效果

发布时间：2018-06-28 16:40

  本文选题：Landsat + 深蓝波段　； 参考：《辽宁工程技术大学学报(自然科学版)》2016年12期

【摘要】：Landsat8卫星的OLI传感器新增的穿透力强的深蓝波段,为近海水质监测提供了重要的数据资料.然而,深蓝波段用于近海泥沙水质监测的效果有待验证.本研究选取了渤海湾近海海域的一景少量云覆盖的Landsat8-OLI多光谱影像,经过裁剪得到海岸带和近海区域.利用不加入深蓝波段的六个波段和加入深蓝波段的七个波段对近海泥沙水体分类效果和精度进行对比研究.研究结果表明:深蓝波段参与分类对于中度泥沙海水的分类精度有显著提高,比深蓝波段未参与分类的中度泥沙海水的分类精度提高约12个百分点;深蓝波段参与分类对于泥沙海滩和轻度泥沙海水的制图精度没有显著影响.
[Abstract]:Landsat8 Oli sensor provides important data for offshore water quality monitoring by adding a dark blue band with strong penetrability. However, the effect of the deep blue band used in the monitoring of offshore sediment water quality needs to be verified. In this study, Landsat8-OLI multispectral images of a small amount of cloud coverage in the offshore waters of Bohai Bay were selected, and the coastal zone and offshore area were obtained by tailoring. The classification effect and accuracy of offshore sediment water were compared between six bands without deep blue band and seven bands with deep blue band. The results show that the classification accuracy of medium sediment sea water in the dark blue band is improved significantly, which is about 12 percentage points higher than that of the medium sediment sea water which is not classified in the deep blue band. The participation of dark blue band in classification has no significant effect on the mapping accuracy of sediment beach and light sediment sea water.
【作者单位】： 辽宁工程技术大学测绘与地理科学学院;中国测绘科学研究院地理国情监测研究中心;
【基金】：国家自然科学基金项目(41501192) 中国测绘科学研究院基本业务费项目(7771507)
【分类号】：P715.6
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本文编号：2078660