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SIFSpec: Measuring Solar-Induced Chlorophyll Fluorescence Observations for Remote Sensing of Photosynthesis
Du, Shanshan1,2; Liu, Liangyun1; Liu, Xinjie1; Guo, Jian1,3; Hu, Jiaochan1,2; Wang, Shaoqiang4; Zhang, Yongguang5
2019-07-01
Source PublicationSENSORS
ISSN1424-8220
Volume19Issue:13Pages:21
Corresponding AuthorLiu, Liangyun(liuly@radi.ac.cn)
AbstractSolar-induced chlorophyll fluorescence (SIF) is regarded as a proxy for photosynthesis in terrestrial vegetation. Tower-based long-term observations of SIF are very important for gaining further insight into the ecosystem-specific seasonal dynamics of photosynthetic activity, including gross primary production (GPP). Here, we present the design and operation of the tower-based automated SIF measurement (SIFSpec) system. This system was developed with the aim of obtaining synchronous SIF observations and flux measurements across different terrestrial ecosystems, as well as to validate the increasing number of satellite SIF products using in situ measurements. Details of the system components, instrument installation, calibration, data collection, and processing are introduced. Atmospheric correction is also included in the data processing chain, which is important, but usually ignored for tower-based SIF measurements. Continuous measurements made across two growing cycles over maize at a Daman (DM) flux site (in Gansu province, China) demonstrate the reliable performance of SIF as an indicator for tracking the diurnal variations in photosynthetically active radiation (PAR) and seasonal variations in GPP. For the O-2-A band in particular, a high correlation coefficient value of 0.81 is found between the SIF and seasonal variations of GPP. It is thus concluded that, in coordination with continuous eddy covariance (EC) flux measurements, automated and continuous SIF observations can provide a reliable approach for understanding the photosynthetic activity of the terrestrial ecosystem, and are also able to bridge the link between ground-based optical measurements and airborne or satellite remote sensing data.
Keywordsolar-induced chlorophyll fluorescence (SIF) gross primary production (GPP) automated in situ measurement system
DOI10.3390/s19133009
WOS KeywordSUN-INDUCED FLUORESCENCE ; GROSS PRIMARY PRODUCTION ; TERRESTRIAL BIOSPHERE ; SPECTRAL-RESOLUTION ; FIELD SPECTROSCOPY ; RIVER-BASIN ; RETRIEVAL ; ECOSYSTEM ; FLUX ; INSTRUMENT
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2017YFA0603001] ; Key Research Program of the Chinese Academy of Sciences[ZDRW-ZS-2019-1] ; National Natural Science Foundation of China[41825002] ; National Natural Science Foundation of China[41601467] ; National Natural Science Foundation of China[41671421]
Funding OrganizationNational Key Research and Development Program of China ; Key Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China
WOS Research AreaChemistry ; Electrochemistry ; Instruments & Instrumentation
WOS SubjectChemistry, Analytical ; Electrochemistry ; Instruments & Instrumentation
WOS IDWOS:000477045000167
PublisherMDPI
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/58135
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLiu, Liangyun
Affiliation1.Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Key Lab Remote Sensing Sci, Beijing 100094, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Xian Univ Sci & Technol, Coll Geomat, Xian 710054, Shaanxi, Peoples R China
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
5.Nanjing Univ, Int Inst Earth Syst Sci, Nanjing 21002, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Du, Shanshan,Liu, Liangyun,Liu, Xinjie,et al. SIFSpec: Measuring Solar-Induced Chlorophyll Fluorescence Observations for Remote Sensing of Photosynthesis[J]. SENSORS,2019,19(13):21.
APA Du, Shanshan.,Liu, Liangyun.,Liu, Xinjie.,Guo, Jian.,Hu, Jiaochan.,...&Zhang, Yongguang.(2019).SIFSpec: Measuring Solar-Induced Chlorophyll Fluorescence Observations for Remote Sensing of Photosynthesis.SENSORS,19(13),21.
MLA Du, Shanshan,et al."SIFSpec: Measuring Solar-Induced Chlorophyll Fluorescence Observations for Remote Sensing of Photosynthesis".SENSORS 19.13(2019):21.
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