Vol. 10, No. 1, 66-72, 2011
Henning Buddenbaum, Pyare Pueschel, Marion Stellmes, Willy Werner, and Joachim Hill
Abstract
Interpreting hyperspectral images of forests can be challenging because reference measurements are difficult to obtain. Forest stands are too high for field spectroscopy, and up-scaling leaf reflectance to canopy reflectance is not straightforward. We took reflectance, transmittance and water and chlorophyll content measurements of forest leaves collected by tree climbers. On the leaf level good agreement between the measured chemical properties and reflectance model inversion results was achieved. The measured spectra were up-scaled into canopy spectra using a GORT model. The up-scaled spectra agreed well with a HyMap image showing pronounced BRDF effects but worse with a 'corrected' HyMap image pretending nadir viewing.
Submitted: 19 April 2011
Revised: 14 June 2011
Accepted: 14 June 2011
Published: 18 June 2011
Responsible editor: Robin Vaughan Citation
Buddenbaum H, P Pueschel, M Stellmes, W Werner & J Hill, 2011. Measuring water and Chlorophyll content on the leaf and canopy scale. EARSeL eProceedings, 10(1): 66-72
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EARSeL European Association of Remote Sensing Laboratories, Strasbourg, France |
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BIS-Verlag |