SuperView-2 LSWI
Land Surface Water Index for SuperView-2
Water Satellite Provider: SPACEWILL
Applications
vegetation water content monitoring
drought detection
water stress assessment
flash drought identification
irrigation mapping
gross primary production modeling
ecosystem water status
Quick Stats
Category: water
Sensor: SuperView-2
Provider: SPACEWILL
Bands Used: 2
Description
The Land Surface Water Index (LSWI) was developed by Xiao et al. to monitor vegetation and soil water content. LSWI is sensitive to liquid water in vegetation due to strong SWIR absorption by water. It is widely used for drought monitoring, water stress detection, and integration into vegetation productivity models.
Formulas
General Formula
SuperView-2 Specific Formula
(NIR1 - SWIR) / (NIR1 + SWIR)Spectral Band Visualization
Band Wavelengths
NIR: 841-876
SWIR: 1628-1652
Code Examples
lswi.py
References
Xiao, X.M., Boles, S., Liu, J.Y., Zhuang, D.F., and Liu, M.L. (2002) - Characterization of forest types in Northeastern China, using multi-temporal SPOT-4 VEGETATION sensor data
Xiao, X.M., Hollinger, D., Aber, J., Goltz, M., Davidson, E.A., Zhang, Q.Y., and Moore, B. (2004) - Satellite-based modeling of gross primary production in an evergreen needleleaf forest