WorldView 2 REIP1

Red-Edge Inflection Point 1 for WorldView 2

Vegetation Satellite Provider: MAXAR

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Applications

Chlorophyll content estimation

Red edge position detection

Vegetation stress monitoring

Crop nutrient status assessment

Early disease detection

Quick Stats

Category: vegetation

Sensor: WorldView 2

Provider: MAXAR

Bands Used: 4

Description

An index that calculates the red edge inflection point, which is the wavelength of maximum slope in the red edge region. REIP is sensitive to chlorophyll content and vegetation stress.

Formulas

General Formula

WorldView 2 Specific Formula

700 + 40 * (((Red_670 + NIR_780) / 2 - RE1_700) / (RE2_740 - RE1_700))

Spectral Band Visualization

Band Wavelengths

red: 670

re1: 700

re2: 740

nir: 780

Code Examples

reip1.py

References

Clevers et al. (2002). Derivation of the red edge index using the MERIS standard band setting.

Herrmann et al. (2011). LAI assessment of wheat and potato crops by VENμS and Sentinel-2 bands.