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Wavelength shifts in fluorescence maxima of stressed and non-stressed Norway spruce needles over the growing seasonLaboratory fluorescence measurements of first and third year metal stressed and non stressed Norway spruce needles collected in May, Jul. Sep. and Nov. display significant wavelength shifts in the intensity maxima in the blue, green, red, and near infrared spectral regions, with the largest shifts occurring in the blue spectral region for both first and third year needles from Nov. Smaller, but the otherwise significant shifts also take place in the blue spectral region for first year needles from Sep. in the red spectral region for third year neddles from May, Jul. and Sep. and in the near infrared spectral region for first and third year needles from Jul. and Sep. Wavelength shifts in needle fluorescence maxima over the growing season are greatest in the blue and to a lesser extent, greenspectral regions from Sep. to Nov. but are also significant in the red and near infrared spectral regions from Jul. to Sep. and Sep. to Nov., and in the near infrared spectral region also from May to Jul.
Document ID
19920002318
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Banninger, Cliff
(Joanneum Research Centre Graz, Austria)
Chappelle, E.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
September 6, 2013
Publication Date
May 1, 1991
Publication Information
Publication: ESA, Physical Measurements and Signatures in Remote Sensing, Volume 2
Subject Category
Earth Resources And Remote Sensing
Accession Number
92N11536
Distribution Limits
Public
Copyright
Other
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