Correction the Effect of Plant Chlorophyll Fluorescence on Atmospheric Carbon Dioxide Satellite Monitoring

doi:10.3964/j.issn.1000-0593(2021)02-0368-04

	Correction the Effect of Plant Chlorophyll Fluorescence on Atmospheric Carbon Dioxide Satellite Monitoring
	Ye Han-han; Wang Xian-hua; Li Qin-qin; Wang Xiao-di
刊名	SPECTROSCOPY AND SPECTRAL ANALYSIS
	2021-02-01
卷号	41
关键词	Carbon dioxide Plant chlorophyll fluorescence Correction Prior information database PPDF
ISSN号	1000-0593
DOI	10.3964/j.issn.1000-0593(2021)02-0368-04
通讯作者	Ye Han-han(yehhgo@gmail.com)
英文摘要	For atmospheric Carbon dioxide (CO2) satellite monitoring, high precision is the most important. However, because of the high similarity of spectra between plant chlorophyll fluorescence and atmospheric scattering effects, the atmospheric scattering effects were always misinterpreted and CO2 retrieval errors were caused. The minor radiance and high spectral similarity of the plant chlorophyll fluorescence made it hard to retrieve and correct. Considering the non-negligible effects of plant chlorophyll fluorescence on CO2 retrieval, we designed a correction method based on atmospheric scattering effects parameterization using three spectral bands of O-2-Aband, 1. 6 and 2. 06 mu m CO2 band to retrieve chlorophyll fluorescence, photonpath-length probability density function (PPDF) parameters and CO2 simultaneously. Firstly, atmospheric scattering effects were parameterized using the PPDF model to reduce its spectral similarity with the plant chlorophyll fluorescence. Secondly, the prior information database with 5 km resolution of plant chlorophyll fluorescence was built using plant chlorophyll fluorescence products from the Orbiting Carbon Observatory(OCO-2), which can strength the prior constraints on chlorophyll fluorescence retrievals and improves its retrieval precision. Through disentangling and quantifying the atmospheric scattering and plant chlorophyll fluorescence, CO2 will be retrieved more accurate. Park Falls station covered with dense plant location in 45. 945 degrees N and 90. 273 degrees W of Total Carbon Column Observing Network (TCCON) was selected for validation. CO2 retrievals of Greenhouse Gases Observing Satellite ( GOSAT) without chlorophyll fluorescence correction are about 2 ppm under bias, which was corrected obviously through the method of this paper, as the largest bias reduces from 2. 58 ppm to 1. 49 ppm. In the same time, the standard deviations are also improved. From the validation results we can see that the effect of plant chlorophyll fluorescence on CO2 retrieval is corrected effectively.
WOS关键词	RETRIEVAL ; SPACE
WOS研究方向	Spectroscopy
语种	英语
出版者	OFFICE SPECTROSCOPY & SPECTRAL ANALYSIS
WOS记录号	WOS:000626516700006
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/121047]
专题	中国科学院合肥物质科学研究院
通讯作者	Ye Han-han
作者单位	Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Opt Calibrat & Characterizat, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Ye Han-han,Wang Xian-hua,Li Qin-qin,et al. Correction the Effect of Plant Chlorophyll Fluorescence on Atmospheric Carbon Dioxide Satellite Monitoring[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2021,41.
APA	Ye Han-han,Wang Xian-hua,Li Qin-qin,&Wang Xiao-di.(2021).Correction the Effect of Plant Chlorophyll Fluorescence on Atmospheric Carbon Dioxide Satellite Monitoring.SPECTROSCOPY AND SPECTRAL ANALYSIS,41.
MLA	Ye Han-han,et al."Correction the Effect of Plant Chlorophyll Fluorescence on Atmospheric Carbon Dioxide Satellite Monitoring".SPECTROSCOPY AND SPECTRAL ANALYSIS 41(2021).