DocumentCode :
297642
Title :
The reflectance of Pleurozium scheberi as a function of water status and its implications on understory reflectance variations for BOREAS sites
Author :
Fernandes, Richard ; White, H. Peter ; Peddle, Derek R. ; Miller, John R. ; Band, Lawrence E.
Author_Institution :
Dept. of Geogr., Toronto Univ., Ont., Canada
Volume :
1
fYear :
1996
fDate :
27-31 May 1996
Firstpage :
212
Abstract :
A controlled laboratory experiment was conducted to test the null hypothesis that the nadir reflectance of Pleurozium scheberi (a feather moss) in the red (ρRED), near-infrared (ρNIR ), and infrared (ρIR) bands is not a function of live layer moisture content. Reflectance spectra were acquired from replicate moss turves over five dry down stages ranging from 4.8 g water/g moss to 0 g/g. Replicate spectra showed a maximum 13.5% increase in ρRED; almost no significant change in ρNIR ; and over 20% increase in ρIR. However, ρRED variations due to drying before desiccation were less than 2%. Inter-replicate differences in reflectance were often larger than dry down differences. NIR understory reflectance measured in a moss dominated BOREAS site showed a significant seasonal change in ρNIR which is not likely due to moisture variations
Keywords :
botany; forestry; geophysical techniques; remote sensing; BOREAS; Canada; IR imaging; Pleurozium scheberi; Pleurozium schreberi; boreal forest floor; dry down difference; drying; feather moss; infrared; light reflectance; measurement technique; moisture content; moss turves; nadir reflectance; null hypothesis; optical imaging; remote sensing; season; seasonal change; understory reflectance variation; vegetation mapping; visible imaging; water status; Extraterrestrial measurements; Feathers; Geography; Laboratories; Moisture control; Physics; Reflectivity; Remote sensing; Spectroscopy; Testing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1996. IGARSS '96. 'Remote Sensing for a Sustainable Future.', International
Conference_Location :
Lincoln, NE
Print_ISBN :
0-7803-3068-4
Type :
conf
DOI :
10.1109/IGARSS.1996.516294
Filename :
516294
Link To Document :
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