气候变化领域集成服务门户(CCPortal): Challenges in the atmospheric characterization for the retrieval of spectrally resolved fluorescence and PRI region dynamics from space

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DOI	10.1016/j.rse.2020.112226
	Challenges in the atmospheric characterization for the retrieval of spectrally resolved fluorescence and PRI region dynamics from space
	Sabater N.; Kolmonen P.; Van Wittenberghe S.; Arola A.; Moreno J.
发表日期	2021
ISSN	00344257
卷号	254
英文摘要	In the coming years, Earth Observation missions like the FLuorescence EXplorer (FLEX) will acquire the radiance signal from the visible to the near-infrared at a very high spectral resolution, enabling exciting prospects for new insights in satellite-based photosynthetic studies. In this context, the process of de-coupling atmospheric and vegetation-related spectral signatures will become essential to guarantee a reliable estimation of the vegetation photosynthetic activity from space. Dynamic changes related to the vegetation photosynthetic status result in subtle contributions to the top of atmosphere radiance signal, e.g. due to the emission of the solar-induced chlorophyll fluorescence (~ 650–800 nm) or due to changes in surface reflectance spectra (500–600 nm) indicating variations in the vegetation photoprotection and light use efficiency. Conversely, atmospheric effects (molecular and aerosol absorption and scattering) dominate the spectral interval of interest for vegetation studies. This article presents a comprehensive overview of the atmospheric radiative effects caused by aerosols, ozone (O3), water vapor (H2O), oxygen (O2), and atmospheric pressure and temperature changes within the visible and near-infrared spectral interval, and paying special attention to the co-occurring vegetation-related spectral changes associated with the fluorescence emission and the activation of the photoprotection mechanisms. Since the largest uncertainties in the atmospheric correction process are associated with the characterization of the aerosol radiative effects, this work largely concentrates on the satellite retrieval-related implications under different aerosol absorbing and scattering scenarios on a global scale. Through a simulation exercise, it is evaluated to what extent aerosol climatology could influence the accuracy of satellite-derived surface apparent reflectance spectra impacting; therefore, any vegetation-related satellite product on a seasonal and global scale. © 2020
英文关键词	Aerosol climatology; Aerosol optical properties; FLORIS; FLuorescence EXplorer (FLEX) mission; Photochemical reflectance index; Photoprotection; Sentinel-3; Solar-induced chlorophyll fluorescence
语种	英语
scopus关键词	Atmospheric pressure; Fluorescence; Infrared devices; Reflection; Satellites; Spectral resolution; Vegetation; Atmospheric characterization; Atmospheric corrections; Chlorophyll fluorescence; High spectral resolution; Photoprotection mechanisms; Pressure and temperature; Top-of-atmosphere radiances; Visible and near infrared; Atmospheric aerosols; atmospheric correction; atmospheric pressure; fluorescence; photoprotection; scattering; spectral reflectance; surface reflectance; top of atmosphere
来源期刊	Remote Sensing of Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/178988
作者单位	Finnish Meteorological Institute, Erik Palménin aukio 1, Helsinki, 00560, Finland; Image Processing Laboratory (IPL), Parc Científic, Universitat de València, Paterna, València 46980, Spain
推荐引用方式 GB/T 7714	Sabater N.,Kolmonen P.,Van Wittenberghe S.,et al. Challenges in the atmospheric characterization for the retrieval of spectrally resolved fluorescence and PRI region dynamics from space[J],2021,254.
APA	Sabater N.,Kolmonen P.,Van Wittenberghe S.,Arola A.,&Moreno J..(2021).Challenges in the atmospheric characterization for the retrieval of spectrally resolved fluorescence and PRI region dynamics from space.Remote Sensing of Environment,254.
MLA	Sabater N.,et al."Challenges in the atmospheric characterization for the retrieval of spectrally resolved fluorescence and PRI region dynamics from space".Remote Sensing of Environment 254(2021).