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.
The new coastal band of Landsat8 with strong penetration ability provides important data for offshore sediment and water monitoring. However, the coastal band effect for offshore sediment water classification remains to be verified. This study selected one Landsat8-OLI multi-spectral image of offshore waters in Bo Hai Bay, which is covered by few clouds. The coastal area and offshore water area were acquired by cutting from the whole image. The research used six bands without coastal band and seven bands including coastal band to compare offshore sediment water classification accuracies. The results show that the result of the classification coastal band participated in can significantly improves the classification accuracy of moderate sediment water, which increases about 12 percentage points than the classification coastal band without participate in; Coastal band participation in the classification has no significant influence on sand beach mapping accuracy and less sediment concentration of seawater.
出处
《辽宁工程技术大学学报（自然科学版）》
CAS
北大核心
2016年第12期1480-1484,共5页
Journal of Liaoning Technical University (Natural Science)
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)
