基于Sentinel-2影像的冬小麦收获面积测算

基于Sentinel-2影像的冬小麦收获面积测算

刘胜威,彭代亮,陈俊杰,胡锦康,楼子杭,冯旭祥,程恩惠

Estimation of Winter Wheat Harvesting Area based on Sentinel-2 Images

Shengwei LIU,Dailiang PENG,Junjie CHEN,Jinkang HU,Zihang LOU,Xuxiang FENG,Enhui CHENG

表3 Sentinel-2影像所用指数特征描述

Table 3 Description of the indices features used in Sentinel-2 image

指数名称	计算公式	参考文献
NDVI	$\frac{B 8 - B 4}{B 8 + B 4}$	Tucker C J, 1979^[17]
EVI	$2.5 \times \frac{B 8 - B 4}{B 8 + 6 \times B 4 - 7.5 \times B 2 + 1}$	Huete A R,等, 1997^[18]
SAVI	$1.5 \times \frac{B 8 - B 4}{B 8 + B 4 + 0.5}$	Huete A R,等, 1988^[19]
MNDWI	$\frac{B 3 - B 11}{B 3 + B 11}$	Xu Hanqiu, 2005^[20]
NDBI	$\frac{B 11 - B 8}{B 11 + B 8}$	Zha Y,等, 2003^[21]
NDVIre1	$\frac{B 8 - B 5}{B 8 + B 5}$	Gitelson A A,等, 2010^[22]
NDVIre2	$\frac{B 8 - B 6}{B 8 + B 6}$	Gitelson A A,等, 2010^[22]
REP	$705 + 35 \times \frac{0.5 \times (B 4 + B 7) - B 5}{B 6 - B 5}$	Guyot G,等, 1988^[23]
GNDVI	$\frac{B 8 - B 3}{B 8 + B 3}$	Gitelson A A,等, 1996^[24]
PSRI	$\frac{B 4 - B 2}{B 6}$	Anderegg J,等, 2019^[25]
BSI	$\frac{(B 11 + B 4) - (B 8 + B 2)}{(B 11 + B 4) + (B 8 + B 2)}$	Ni R,等, 2021^[26]