Research Article
Spatial Differentiation Analysis of Water Quality in Dianchi Lake Based on GF-5 NDVI Characteristic Optimization
Table 2
Characteristic bands of Caohai and Waihai in the red band.
| Area | Band | Reflectance value (%) | Band characteristics |
| Caohai | B74 (703 nm) | 1.34 | Reflection peak, max | B66 (669 nm) | 0.64 | Absorption valley | B86 (754 nm) | 0.63 | Min | | 0.95 | Mean |
| Waihai | B74 (703 nm) | 2.76 | Reflection peak, max | B66 (669 nm) | 1.59 | Absorption valley | B86 (754 nm) | 0.92 | Min | | 1.86 | Mean |
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