光学遥感植被指数与SAR遥感参数的相关性及其主要影响因素研究

王川, 范景辉, 林思美, 饶月明, 黄华国

Study of the correlation between optical vegetation index and SAR data and the main affecting factors

Chuan WANG, Jinghui FAN, Simei LIN, Yueming RAO, Huaguo HUANG

表6 Sentinel-1B影像VH极化、PR、干涉相干系数与Landsat8影像植被指数的相关性分析^①

Tab.6 Correlation analysis between VH, PR, interferometry coefficients of Sentinel-1B and optical indices of Landsat8 images

植被指数	$R_{1}^{2}$		$R_{2}^{2}$		$R_{3}^{2}$		$R_{4}^{2}$
植被指数	VH	PR	VH	PR	γ_VV	γ_VH	γ_VV	γ_VH
NDVI	0.23	0.50	0.14	0.45	0.26	0.51	0.24	0.47
EVI	0.21	0.39	0.18	0.44	0.24	0.46	0.21	0.43
GVI	0.22	0.39	0.13	0.44	0.24	0.45	0.22	0.43
NDWI	0.34	0.28	0.29	0.23	0.24	0.46	0.18	0.35