How water appears in NIR?
Water Reflectance
The water curve is characterized by a high
absorption, especially at near infrared
wavelengths range and beyond. Because of this
absorption property, water bodies can easily be
detected, located and delineated with remote
sensing data. Turbid water has a higher
reflectance in the visible region than clear water.
This is also true for waters containing high
chlorophyll concentrations. These reflectance
patterns are used to detect algae colonies as
well as contaminations such as oil spills or
industrial waste water