辽河口盐地碱蓬时空动态遥感监测及其识别机理研究

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Remote sensing-based monitoring and identification mechanisms of the spatiotemporal dynamics of Suaeda salsa in the Liaohe estuary, China

LI Yubin, WANG Zongming, ZHAO Chuanpeng, JIA Mingming, REN Chunying, MAO Dehua, YU Hao

表2 Sentinel-2影像特征介绍

Tab.2 Features derived from the Sentinel-2 Images

特征类型	特征
光谱特征	B2,B3,B4,B5,B6,B7,B8,B8A,B11,B12,VV,VH
波段比值特征组	B2/B4,B3/B4,B3/B8,B4/B2,B4/B3,B4/B5,B4/B8,B5/B3,B5/B4,B6/B3,B6/B5,B7/B3,B7/B4,B8/B2,B8/B3,B8/B4,B8/B5,B8/B11,B8/B12,B8A/B5,B11/B8,B11/B12,B12/B4,B12/B8,B12/B11,VV/VH,VH/VV
指数特征组^①	归一化植被指数(normalized difference vegetation index, NDVI)	$N D V I = \frac{B 8 - B 4}{B 8 + B 4}$
	增强植被指数(enhanced vegetation index, EVI)	$E V I = \frac{B 8 - B 4}{B 8 + 6 B 4 - 7.5 B 2 + 1}$
	植被衰减指数(plant senescence reflectance index, PSRI)	$P S R I = \frac{B 4 - B 2}{B 6}$
	归一化差异红色变异指数(normalized difference red edge, NDRE)	$N D R E = \frac{B 8 - R E}{B 8 + R E}$
	地表水分指数(land surface water index, LSWI)	$L S W I = \frac{B 8 - S W I R}{B 8 + S W I R}$
	归一化水分指数(normalized difference water index, NDWI)	$N D W I = \frac{B 3 - B 8}{B 3 + B 8}$
	修正的归一化差异水体指数(modified normalized difference water index, mNDWI)	$m N D W I = \frac{B 3 - S W I R}{B 3 + S W I R}$
	植被近红外反射指数(near-infrared reflectance of vegetation, NIRv)	$N I R v = B 8 (\frac{B 8 - B 4}{B 8 + B 4})$