Urban Vegetation

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High resolution (2.8 m) vegetation maps derived from Quickbird imagery

can be used for vicarious validation of moderate resolution (30 m) estimates

of fractional vegetation cover derived from Landsat 7.  The vicarious validation

indicates that Landsat-derived vegetation estimates have less than 6% estimation

error with ~17 m spatial uncertainty.   Details in:

Small, C. and J. Lu, Estimation and Vicarious Validation of Urban Vegetation Abundance by Spectral Mixture Analysis, Remote Sensing of Environment, v.100, p.441-456, 2005.

NYC Vegetation Maps

Spectral Mixture Analysis of Landsat 5 reflectance in NYC

can be used to map fractional vegetation cover at regional scales.

Comparison with integrated vegetation derived from 1 m aerial

photography indicates that Landsat-derived vegetation fraction

provides better than 90% accuracy for fractions >20%.  Details in:

Small, C., Estimation of Urban Vegetation Abundance by Spectral Mixture Analysis, International Journal of Remote Sensing, v.21, n.7, 2001.