基于多季相Sentinel-2影像的白洋淀湿地信息提取

梁爽,宫兆宁,赵文吉,关鸿亮,梁亚囡,陆丽,赵雪

Information Extraction of Baiyangdian Wetland based on Multi-season Sentinel-2 Images

Shuang Liang,Zhaoning Gong,Wenji Zhao,Hongliang Guan,Yanan Liang,Li Lu,Xue Zhao

表4 Sentinel-2光谱指数描述

Table 4 Description of the spectral indices from Sentinel-2

指数简称	指数全称	计算公式	类型
NDVI	Normalized Difference Vegetation Index	(B8-B4)/(B8+B4)	传统光谱指数
EVI	Enhanced Vegetation Index	2.5×(B8-B4)/(B8+6.0×B4-7.5×B2+1)	传统光谱指数
MNDWI	Modified Normalized Difference Water Index	(B3-B11)/(B3+B11)	传统光谱指数
LSWI	Land Surface Water Index	(B8-B11)/(B8+B11)	传统光谱指数
MSAVI	Modified Soil Adjusted Vegetation Index	$[2 \times B 8 + 1 - \sqrt[]{{(2 \times B 8 + 1)}^{2} - 8 \times (B 8 - B 4)}] / 2$	传统光谱指数
NDI45	Normalized Difference Index	(B5-B4)/(B5+B4)	红边光谱指数
MCARI	Modified Chlorophyll Absorption Ratio Index	[(B5-B4)-0.2×(B5-B3)] × (B5-B4)	红边光谱指数
PSSRI	Pigment Specific Simple Ratio (chlorophyll) Index	B7/B4	红边光谱指数
NDre1	Normalized Difference red-edge 1	(B6-B5)/(B6+B5)	红边光谱指数
NDre2	Normalized Difference red-edge 2	(B7-B5)/(B7+B5)	红边光谱指数