WorldView Legion PWI

Plant Water Index for WorldView Legion

Water Satellite Provider: MAXAR

Get Imagery

Applications

Plant water content assessment

Water stress detection

Drought monitoring

Irrigation management

Crop water status evaluation

Quick Stats

Category: water

Sensor: WorldView Legion

Provider: MAXAR

Bands Used: 2

Description

A water stress index that quantifies relative water content at the leaf level. The ratio of 970nm to 900nm reflectance is sensitive to water absorption features and provides information about plant water status.

Formulas

General Formula

WorldView Legion Specific Formula

NIR2 / NIR2

Spectral Band Visualization

Band Wavelengths

nir_900: 900

nir_970: 970

Code Examples

pwi.py

References

Peñuelas et al. (1993). The reflectance at the 950–970 nm region as an indicator of plant water status.

Datt (1999). Remote Sensing of Water Content in Eucalyptus Leaves.

Ceccato et al. (2002). Designing a spectral index to estimate vegetation water content from remote sensing data.