Physical interpretation of the correlation between multi-angle spectral data and canopy height

Details Physical interpretation of the correlation between multi-angle spectral data and canopy height Physical interpretation of the correlation between multi-angle spectral data and canopy height

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007georl..3418405s&link_type=abstract

Geophysical Research Letters, Volume 34, Issue 18, CiteID L18405

Mathematics

Probability

2

Biogeosciences: Remote Sensing, Global Change: Land/Atmosphere Interactions (1218, 1843, 3322), Biogeosciences: Carbon Cycling (4806), Global Change: Global Climate Models (3337, 4928), Biogeosciences: Biodiversity

Scientific paper

Recent empirical studies have shown that multi-angle spectral data can be useful for predicting canopy height, but the physical reason for this correlation was not understood. We follow the concept of canopy spectral invariants, specifically escape probability, to gain insight into the observed correlation. Airborne Multi-Angle Imaging Spectrometer (AirMISR) and airborne Laser Vegetation Imaging Sensor (LVIS) data acquired during a NASA Terrestrial Ecology Program aircraft campaign underlie our analysis. Two multivariate linear regression models were developed to estimate LVIS height measures from 28 AirMISR multi-angle spectral reflectances and from the spectrally invariant escape probability at 7 AirMISR view angles. Both models achieved nearly the same accuracy, suggesting that canopy spectral invariant theory can explain the observed correlation. We hypothesize that the escape probability is sensitive to the aspect ratio (crown diameter to crown height). The multi-angle spectral data alone therefore may not provide enough information to retrieve canopy height globally.

Affiliated with

Also associated with

No associations

Rating

Physical interpretation of the correlation between multi-angle spectral data and canopy height does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Physical interpretation of the correlation between multi-angle spectral data and canopy height, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Physical interpretation of the correlation between multi-angle spectral data and canopy height will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-966044