气候变化领域集成服务门户(CCPortal): A radiative transfer model for solar induced fluorescence using spectral invariants theory

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DOI	10.1016/j.rse.2020.111678
	A radiative transfer model for solar induced fluorescence using spectral invariants theory
	Zeng Y.; Badgley G.; Chen M.; Li J.; Anderegg L.D.L.; Kornfeld A.; Liu Q.; Xu B.; Yang B.; Yan K.; Berry J.A.
发表日期	2020
ISSN	00344257
卷号	240
英文摘要	Solar Induced chlorophyll Fluorescence (SIF) shows promise as an approach for estimating gross primary production (GPP) remotely. However, sun-target-sensor geometry and within-canopy absorption of SIF can alter the relationship between measured SIF and GPP, because sensors can only retrieve some unknown fraction of the total emitted SIF. Radiative transfer models that allow for variation in canopy structure and sensor angles are therefore needed to properly interpret SIF measurements. Spectral invariants allow decoupling of the wavelength-independent canopy structure and the wavelength-dependent leaf and soil spectrum in the radiative transfer process. Here we develop a simple analytical Fluorescence Radiative Transfer model based on Escape and Recollision probability (FluorRTER) to investigate the impact of canopy structure and sun-target-sensor geometry on SIF emissions. SIF simulations using the FluorRTER model agreed well the one-dimensional Soil-Canopy Observation of Photochemistry and Energy balance (SCOPE) model and the three-dimensional Fluorescence model with Weighted Photon Spread (FluorWPS) model. The fractional vegetation cover (FVC) and clumping effect have a large influence the SIF emission of 3D discontinuous canopies. For a moderate solar zenith angle (30°) and a clumped canopy (FVC = 0.6), the difference between the directional observed SIF of a 3D discontinuous canopy and a 1D homogeneous canopy was as large as 43.2% and 38.4% for Photosystem I + II fluorescence at 685 nm and at 740 nm, respectively. By bridging the gap between observed SIF and total emitted SIF over 3D heterogeneous vegetation canopies, the FluorRTER model can assist with the angular normalization of SIF measurements and enable the more robust interpretation of how variations in SIF from directional and hemispherical in-situ, airborne and satellite observations relate to leaf and whole-canopy physiological processes. © 2020 Elsevier Inc.
英文关键词	3D canopy structure; Escape and recollision probability; Radiative transfer; Solar induced fluorescence (SIF); Spectral invariants
语种	英语
scopus关键词	Fluorescence; Forestry; Radiative transfer; Vegetation; 3D canopy structure; Chlorophyll fluorescence; Fractional vegetation cover; Radiative transfer process; Recollision probability; Solar-induced fluorescences; Spectral invariants; Three-dimensional fluorescences; Physiological models; model; primary production; probability; radiative transfer; solar radiation; spectral analysis; three-dimensional modeling; vegetation cover
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/179390
作者单位	Department of Global Ecology, Carnegie Institution for Science, Stanford, CA 94305, United States; State Key Laboratory of Remote Sensing Science, Jointly Sponsored by Aerospace Information Research Institute, Chinese Academy of Sciences and Beijing Normal University, Beijing, 100101, China; Joint Global Change Research Institute, Pacific Northwest National Laboratory, College Park, MD 20740, United States; Department of Earth and Environment, Boston University, Boston, MA 02215, United States; Macro Agriculture Research Institute, College of Resource and Environment, Huazhong Agricultural University, Wuhan, 430070, China; College of Electrical and Information Engineering, Hunan University, Changsha, 410082, China
推荐引用方式 GB/T 7714	Zeng Y.,Badgley G.,Chen M.,et al. A radiative transfer model for solar induced fluorescence using spectral invariants theory[J],2020,240.
APA	Zeng Y..,Badgley G..,Chen M..,Li J..,Anderegg L.D.L..,...&Berry J.A..(2020).A radiative transfer model for solar induced fluorescence using spectral invariants theory.Remote Sensing of Environment,240.
MLA	Zeng Y.,et al."A radiative transfer model for solar induced fluorescence using spectral invariants theory".Remote Sensing of Environment 240(2020).