Remote Sensing vegetation status by Laser-induced Fluorescence
Günther, K.P. and Dahn, H.-G. and Lüdeker, W. (1994) Remote Sensing vegetation status by Laser-induced Fluorescence. Zeitschrift "Remote Sensing of Environment", 47., pp. 10-17. Elsevier Science Inc., New York, NY 10010, USA.
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In November 1989 the EUREKA project LASFLEUR (EU 380) started as an European research effort to investigate the future application of far-field laser-induced plant fluorescence for synoptic, airborne environmental monitoring of vegetation. This report includes a brief introduction in a theoretically approach for the laser-induced fluorescence signals of leaves and their spectral and radiometric behaviour. In addition, a detailed description of the design and realization of the second generation of the far-field fluorescence lidar (DLidaR-2) is given with special regard to the optical and electronical setup, followed by a short explanation of the data processing.The main objectives of the far-field measurements are to demonstrate the link between laser-induced fluorescence data and plant physiology and to show the reliability of remote single shot lidar measurements. The data sets include the typical daily cycles of the fluorescence for different global irradiation. As expected from biophysical models, the remotely sensed chlorophyll fluorescence is highly correlated with the carbon fixation rate, while the fluorescence ratio F685/F730 is only dependent on the chlorophyll concentration. Drought stress measurement of evergreen oaks Quercus pubescens confirm the findings of healthy plants with regard to the fluorescence ratio F685/F730 while the fluorescence signals of stressed plants show a different behaviour than nonstressed plants. Additionally, the corresponding physiological data (porometer and PAM data) are presented.
|Title:||Remote Sensing vegetation status by Laser-induced Fluorescence|
|Journal or Publication Title:||Zeitschrift "Remote Sensing of Environment"|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 10-17|
|Publisher:||Elsevier Science Inc., New York, NY 10010, USA|
|Keywords:||Laser-induced fluorescence, lidar, plant physiology|
|HGF - Research field:||UNSPECIFIED|
|HGF - Program:||Space (old)|
|HGF - Program Themes:||W EO - Erdbeobachtung|
|DLR - Research area:||UNSPECIFIED|
|DLR - Program:||W EO - Erdbeobachtung|
|DLR - Research theme (Project):||UNSPECIFIED|
|Institutes and Institutions:||Institut für Optoelektronik|
|Deposited By:||elib DLR-Beauftragter|
|Deposited On:||02 Apr 2006|
|Last Modified:||27 Apr 2009 09:42|
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