荧光
叶绿素荧光
遥感
吸收(声学)
发射光谱
植被(病理学)
光合作用
卫星
吸收光谱法
化学
环境科学
谱线
光化学
物理
光学
地质学
天文
生物化学
医学
病理
作者
R. Pedrós,I. Moya,Y. Goulas,Stéphane Jacquemoud
摘要
Chlorophyll a fluorescence can be used as an early stress indicator. Fluorescence is also connected to photosynthesis so it can be proposed for global monitoring of vegetation status from a satellite platform. Nevertheless, the correct interpretation of fluorescence requires accurate physical models. The spectral shape of the leaf fluorescence free of any re-absorption effect plays a key role in the models and is difficult to measure. We present a vegetation fluorescence emission spectrum free of re-absorption based on a combination of measurements and modelling. The suggested spectrum takes into account the photosystem I and II spectra and their relative contribution to fluorescence. This emission spectrum is applicable to describe vegetation fluorescence in biospectroscopy and remote sensing.
科研通智能强力驱动
Strongly Powered by AbleSci AI