基于无人机高光谱遥感的河湖水环境探测
臧传凯, 沈芳, 杨正东
Aquatic environmental monitoring of inland waters based on UAV hyperspectral remote sensing
ZANG Chuankai, SHEN Fang, YANG Zhengdong
表2
水质参数反演模型
Tab.2
Inversion model for water quality parameters
水质
参数(
y
)
自变量(
x
)
反演模型
Chl
-
a
/
(mg·m
-3
)
x
=
R
rs
(636.91)/
R
rs
(701.64)
y
=38.27
x
-6.10
TSM
/(mg·L
-1
)
x
=
R
rs
(733)
y
=251 886
x
2
-7 300.8
x
+74.94
CDOM
/m
x
1
=
R
rs
(600)/
R
rs
(709),
x
2
=
R
rs
(652)/
R
rs
(725)
y
=2.098
x
1
+0.286
x
2
+2.950
浊度/
NTU
x
=(
R
rs
(651)-
R
rs
(655))/
R
rs
(761)
y
=140.58exp(18
x
)
TN
/
(mg·L
-1
)
x
=(
R
rs
(482)-
R
rs
(677))/(
R
rs
(482)+
R
rs
(677))
y
=751.27
x
3
+201.79
x
2
+3.60
x
+0.72
TP
/
(mg·L
-1
)
x
=(
R
rs
(618)-
R
rs
(692))/(
R
rs
(618)+
R
rs
(692))
y
=7 084.4
x
3
-1 177.7
x
2
+55.84
x
-0.48