Proceedings of the Symposium on Global and Environmental Monitoring: Proceedings of the Symposium on Global and Environmental Monitoring

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Persistent identifier:: 856665355

Title:: Proceedings of the Symposium on Global and Environmental Monitoring

Sub title:: techniques and impacts ; September 17 - 21, 1990, Victoria Conference Centre, Victoria, British Columbia, Canada

Year of publication:: 1990

Place of publication:: Victoria, BC

Publisher of the original:: [Verlag nicht ermittelbar]

Identifier (digital):: 856665355

Language:: English

Document type:: Multivolume work

Volume

Persistent identifier:: 856669164

Title:: Proceedings of the Symposium on Global and Environmental Monitoring

Sub title:: techniques and impacts; September 17 - 21, 1990, Victoria Conference Centre, Victoria, British Columbia, Canada

Scope:: XIV, 912 Seiten

Year of publication:: 1990

Place of publication:: Victoria, BC

Publisher of the original:: [Verlag nicht ermittelbar]

Identifier (digital):: 856669164

Illustration:: Illustrationen, Diagramme, Karten

Signature of the source:: ZS 312(28,7,1)

Language:: English

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Editor:: International Society for Photogrammetry and Remote Sensing, Commission of Photographic and Remote Sensing Data

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2016

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: [WP-4 INTERPRETATION AND MODELLING]

Document type:: Multivolume work

Structure type:: Chapter

Chapter

Title:: LEAF REFLECTANCE A STOCHASTIC MODEL FOR ANALYSING THE BLUE SHIFT. W. Lüdeker, K. P. Günther

Document type:: Multivolume work

Structure type:: Chapter

480 From a physiological point of view thin leaves can be found in spring when young leaves are develop- ping or under stress conditions as e.g. water stress. In this paper we presented only the effect of different pigmentations. As mentioned before a second effect may influence the blue shift of the red edge, the shift of the ab sorption line to shorter wavelegths. This phenome non can be observed in the laboratory when leaves are treated with the herbicide DCMU, solved in alcoholic solution, in order to investigate e.g. the Kautsky effect to obtain physiological data of the plant. Under these special conditions, the pigment concentration remains constant as well as the leaf thickness so that the observed shift of the red edge may be attributed to a shift of the absorption line due to the influence of the solvent and the hebizide. It is well known that the type of solvents can chan ge the position of absorption lines. The revised version of the stochastic leaf model has demonstrated its usefulness in calculating reflectan ce spectra. 5 REFERENCES Baret, F.. Andrieu, B. and Guyot, G., 1988. A simple model for leaf optical properties in visible and near infrared: application to the analysis of spectral shifts determinism. In: Applications of chlorophyll fluorescence. Kluwer Academic Publisher, Dordrecht, pp. 345 - 351. Boyer M, Miller, J., Belanger M. and Hare, E., 1988. Senescence and spectral reflectance in leaves of nor thern pin oak (Quercus palustris Muenchh.). Remote Sens. Environment, 25: 71 - 87. Buschmann. C. and Lichtenthaler H. K., 1988. Reflec tance and fluorescence signature of leaves. In: Ap plications of chlorophyll fluorescence. Kluwer Aca demic Publisher, Dordrecht, pp. 325 - 332. Collins, W., Chang, S.-H., Raines. G.. Canney, F. and Ashley , R., 1983. Airborne biogeophysical mapping of hidden mineral deposits. Economic Geology, 78: 737 - 749. Guyot, G., Baret, F. and Major, D., 1988. La haute re solution spectrale, determination des deformations spectrales entre le rouge et proche infrarouge. In: Proc. 6eme Congres de l'Association Québécoise de Télédétection. Sherbrooke, May 3-6. 1988. Horler, D. N. H.. Barber, J. and Barringer A. R., 1980. Effects of heavy metal on the absorbance and re flectance spectra of plants. Int. J. Remote Sensing, 1 (1): 121 - 136. Horler, D. N. H., Dockray, M. and Barber, J., 1983. The red edge of plant reflectance. Int. J. Remote Sensing, 4 (2): 273 -288. Lichtenthaler, H. K., 1987. Chlorophylls and caroti- noids: pigments of photosynthetic biomembranes. In: Methods in Enzymology, Vol. 148, Academic Press Inc., pp. 350 - 382. Lichtenthaler, H. K. and Buschmann, C., 1987. Re flectance and fluorescence signature of leaves, Proc. IGARSS '87, May 18-21,1987, pp. 1201 - 1207. Morel, A. and Bricaud, A., 1981. Theoretical results concerning light absorption in a discrete medium, and application to specific absorption by phyto plankton. Deep Sea Res. , 28A (11), 1375 - 1393. Rock, B. N.. Hoshizaki, T. and Miller, J. R., 1988. Comparison of in situ and airborne spectral measu rements of the blue shift associated with forest decline. Remote Sensing of Environment, 24: 109 - 127. Sanger, J. E., 1971. Quantitative investigations of leaf pigments from their inception in buds through au tumn coloration to decomposition in falling leaves. Ecology, 52(6): 1075 - 1089. Schutt, J. B., Rowland, R. R. and Heartly W. H.. 1984. A laboratory investigation of a physical mecha nism for the extended infrared absorption ('red shift') in wheat. Int. J. Remote Sens., 5(1): 95 - 102. Singhroy, V. H., Sado, E. and Bruce, W., 1985. Spec tral geobotany in glaciated environments: test over a mineralized till site in northern Ontario. Proc. Fo urth Them. Conf. on Remote Sensing for Exploration Geology, San Francisco, April 1-4, 1985, pp. 701 - 720. Thiman, K. V. and Edmondson, Y. H., 1949. The bio genesis of the anthocyanins. I. General nutritional conditions leading to anthocyanin formation. Archi ves of Biochemistry, 22: 33 -53. Tucker, C. J. and Garratt, M. W., 1977. Leaf optical systems modeled as a stochastic process. Appl. Opt. . 16 (3): 635 - 642.

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