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Laser and sunlight-induced fluorescence from chlorophyll pigmentsFluorescence properties of chlorophyll pigment bearing plant foliage utilizing a 337 nm nitrogen laser and integrating sphere were studied. Measured yields, in terms of number of photons emitted per 100 photons absorbed, range from 1.5 to 0.1 for the 685 nm peak, and from 4.2 to 0.2 for the 730 nm peak. Decreasing order of magnitude puts herbaceous leaves ahead of all others followed by broad leaves of hardwoods and coniferous needles. Meaningful quantization for the fluorescence peaks at 430 and 530 nm could not be attained. Passive monitoring of these fluorescence peaks is successful only for the 685 nm from the ocean surface. Field data show the reflectance changes at 685 nm due to the algae presence amounts to 1% at most.
Document ID
19870008772
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kim, H. H.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Brown, K. S.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
September 5, 2013
Publication Date
August 1, 1986
Publication Information
Publication: ESA Proceedings of the 1986 International Geoscience and Remote Sensing Symposium (IGARSS '86) on Remote Sensing: Today's Solutions for Tomorrow's Information Needs, Volume 3
Subject Category
Life Sciences (General)
Accession Number
87N18205
Distribution Limits
Public
Copyright
Other

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