Visualization in SEPAL

Natural color: red, green, blue

• Description: Represents the true color of the terrain as human eyes would see it, using the red, green, and blue bands.

• Usage: Used for general mapping and visual inspections where true color representation is necessary.

False color: nir, red, green

• Description: Uses near-infrared, red, and green bands. Vegetation appears red due to the high reflection of NIR by healthy vegetation, helpful for distinguishing vegetative areas.

• Usage: Commonly used in vegetation studies to easily distinguish live green vegetation, which reflects NIR strongly.

False color: nir, swir1, red

• Description: Combines near-infrared, short-wave infrared, and red bands. This combination is effective in highlighting vegetation and differentiating moisture levels and geological features.

• Usage: Useful in geological mapping, vegetation health assessment, and moisture content analysis.

False color: swir2, nir, red

• Description: Utilizes short-wave infrared, near-infrared, and red bands. It enhances the differentiation between mineral types and can indicate burn severity in post-fire assessments.

• Usage: Often used in mineralogical mapping, soil and rock differentiation, and detecting burned areas.

False color: swir2, swir1, red

• Description: Involves short-wave infrared bands and red band. This setup enhances geological features and is sensitive to water content and urban areas.

• Usage: Ideal for enhanced geological mapping, urban sprawl studies, and discriminating between different water bodies.

False color: swir2, nir, green

• Description: Features short-wave infrared, near-infrared, and green bands. This visualization aids in the analysis of vegetation health and soil/water interactions.

• Usage: Useful for detailed vegetation health monitoring and differentiating water stress in plants.

Tasseled cap: brightness, greenness, wetness

• Description: Applies the Tasseled Cap transformation to highlight physical properties of the land surface such as brightness (reflectivity), greenness (vegetation), and wetness (moisture content).

• Usage: Extensively used in environmental monitoring, land cover classification, and assessing vegetation and water content dynamics.

Tasseled cap: fifth, sixth, fourth

• Description: Another Tasseled Cap visualization focusing on the additional components that might reflect other surface properties not captured by the primary three bands.

• Usage: Useful for specialized studies in vegetation dynamics, soil properties, and other environmental monitoring where standard Tasseled Cap indices might need supplementation.