Reply to Magnani et al.: Linking large-scale chlorophyll fluorescence observations with cropland gross primary production.
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چکیده
منابع مشابه
Modelling sun-induced fluorescence and photosynthesis with a land surface model at local and regional scales in northern Europe
Recent satellite observations of sun-induced chlorophyll fluorescence (SIF) are thought to provide a large-scale proxy for gross primary production (GPP), thus providing a new way to assess the performance of land surface models (LSMs). In this study, we assessed how well SIF is able to predict GPP in the Fenno-Scandinavian region and what potential limitations for its application exist. We imp...
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Vertical profiles of the in situ quantum yield of fluorescence of chlorophyll a, ff, were derived with an algorithm from spectral underwater radiometer measurements. Select inherent optical properties were obtained from an initial radiance reflectance inversion that was optimized by comparing retrieved estimates of phytoplankton absorption with independent measurements. The comparison of chloro...
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The measurement of solar-induced chlorophyll fluorescence (SIF) is a new tool for estimating gross primary production (GPP). Continuous tower-based spectral observations together with flux measurements are an efficient way of linking the SIF to the GPP. Compared to conical observations, hemispherical observations made with cosine-corrected foreoptic have a much larger field of view and can bett...
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ورودعنوان ژورنال:
- Proceedings of the National Academy of Sciences of the United States of America
دوره 111 25 شماره
صفحات -
تاریخ انتشار 2014