Sentinel-2和Landsat8影像的四种常用水体指数地表水体提取对比

王大钊, 王思梦, 黄昌

Comparison of Sentinel-2 imagery with Landsat8 imagery for surface water extraction using four common water indexes

Dazhao WANG, Simeng WANG, Chang HUANG

表3 基于Landsat8和Sentinel-2影像的4种水体指数水体提取结果精度指标

Tab.3 Accuracy evaluation of four water extraction results based on Landsat8 and Sentinel-2 images using four water indices

影像	水体指数	错分率/%	漏分率/%	总体精度/%	Kappa 系数
Landsat8	NDWI	0.02	9.17	90.81	0.813 3
	MNDWI	0.04	6.71	93.24	0.861 0
	AWEI_sh	0.36	5.13	94.52	0.886 2
	WI₂₀₁₅	0.27	5.56	94.48	0.885 5
Sentinel-2	NDWI	0.08	5.68	94.24	0.880 9
	MNDWI	0.07	3.19	96.74	0.931 7
	AWEI_sh	0.16	1.83	98.01	0.958 0
	WI₂₀₁₅	0.14	1.80	98.06	0.959 1