大气与环境光学学报 ›› 2024, Vol. ›› Issue (2): 221-231.doi: 10.3969/j.issn.1673-6141.2024.02.008

• 光学遥感 • 上一篇    

基于GMI数据的植被荧光反演研究

王晓迪 1,2, 王先华 1*, 施海亮 1, 叶函函 1, 李超 1,2, 安源 1,2, 孙二昌 1,2   

  1. 1 中国科学院合肥物质科学研究院安徽光学精密机械研究所, 中国科学院通用光学定标与表征技术重点实验室, 安徽 合肥 230031; 2 中国科学技术大学, 安徽 合肥 230026
  • 收稿日期:2022-03-21 修回日期:2022-04-01 出版日期:2024-03-28 发布日期:2024-04-18
  • 通讯作者: E-mail: xhwang@aiofm.ac.cn E-mail:xhwang@aiofm.ac.cn
  • 作者简介:王晓迪 (1996- ), 女, 安徽安庆人, 硕士研究生, 主要从事叶绿素荧光遥感方面的研究。E-mail: wxd1002@mail.ustc.edu.cn
  • 基金资助:
    国家重点研发计划资助项目 ( 2021YFE0118000), 中国科学院重点部署项目 (ZDRW-KT-2020-3), 民用航天预先研究项目 (D040102)

Retrieval of vegetation fluorescence based on GMI remote sensing data

WANG Xiaodi 1,2, WANG Xianhua 1*, SHI Hailiang 1, YE Hanhan 1, LI Chao 1,2, AN Yuan 1,2, SUN Erchang 1,2   

  1. 1 Key Laboratory of Optical Calibration and Characterization, Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China; 2 University of Science and Technology of China, Hefei 230026, China
  • Received:2022-03-21 Revised:2022-04-01 Online:2024-03-28 Published:2024-04-18
  • Supported by:
    National Key R&D Program of China;Key Research Program of the Chinese Academy of Sciences;D040102

摘要: 太阳诱导叶绿素荧光直接指示植被生理状态, 而植被作为重要的碳汇, 若能利用温室气体卫星遥感数据反演 出植被叶绿素荧光, 则对于分析大气温室气体源、汇具有重要意义。利用氧气吸收线拟合法, 基于GF-5 卫星“大气主 要温室气体监测仪 (GMI) ”及美国 OCO-2 遥感数据, 针对亚马逊森林、撒哈拉沙漠和非洲草原地区2019 年1 月和7 月 GMI卫星遥感数据开展了叶绿素荧光反演研究, 并将结果与OCO-2 数据荧光产品进行对比分析。反演结果表明: 以 OCO-2 荧光产品为基准, 在三个研究区域的两个研究时段内, GMI数据能够较好地反演叶绿素荧光强度。

关键词: 太阳诱导叶绿素荧光, 遥感, 反演方法

Abstract: Solar-induced chlorophyll fluorescence can indicate the physiological state of vegetation directly. As vegetation is an important sink, it is of great significance of using greenhouse gas satellite remote sensing data to retrieve vegetation chlorophyll fluorescence for analyzing the sources and sinks of atmospheric greenhouse gases. Based on the GF-5 satellite "Atmospheric Major Greenhouse Gas Monitor (GMI)" and U.S. OCO-2 remote sensing data, the retrieval of chlorophyll fluorescence for the GMI satellite remote sensing data of Amazon forest, Sahara desert and African grassland regions in January and July 2019 is conducted using the oxygen absorption line fitting method, and the results are compared with OCO- 2 data fluorescence products. The retrieval results show that the GMI data presents a good result in the retrieval of chlorophyll fluorescence intensity compared with U.S. OCO-2 data in two research periods of the three research areas.

Key words: solar induced chlorophyll fluorescence, remote sensing, retrieval methods

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