气候变化研究进展 ›› 2014, Vol. 10 ›› Issue (6): 427-432.doi: 10.3969/j.issn.1673-1719.2014.06.005

• 温室气体排放 • 上一篇    下一篇

卫星高光谱大气CO2遥感反演精度地基验证研究

张淼,张兴赢,刘瑞霞   

  1. 中国气象局中国遥感卫星辐射测量和定标重点开放实验室/国家卫星气象中心,北京 100081
  • 收稿日期:2014-05-26 修回日期:2014-07-02 出版日期:2014-11-30 发布日期:2014-11-30
  • 通讯作者: 张淼 E-mail:zhangmiao@cma.gov.cn
  • 基金资助:

    国家863计划项目资助;国家自然科学基金

Study on the Validation of Atmospheric CO2 from Satellite Hyper Spectral Remote Sensing

Zhang Miao, Zhang Xingying, Liu Ruixia   

  1. Key Lab of Radiometric Calibration and Validation for Environmental Satellites, China Meteorological Administration (LRCVES, CMA)/National Satellite Meteorological Center, Beijing 100081, China
  • Received:2014-05-26 Revised:2014-07-02 Online:2014-11-30 Published:2014-11-30

摘要: 利用TCCON网站提供的北半球7个地面观测站CO2干空气混合比(XCO2)数据,对3种卫星反演的XCO2产品进行了验证,包括SCIAMACHY产品、NIES-GOSAT产品和ACOS-GOSAT产品。结果表明:卫星CO2遥感反演产品与地基遥感资料具有较一致的季节性周期变化,一年中月平均浓度最高值均出现在4月和5月,最低值均出现在8月和9月;相对于地面观测,3种卫星产品均低估了XCO2;ACOS-GOSAT产品与NIES-GOSAT产品的精度大体相当,误差标准差分别为2.26×10-6和2.27×10-6;SCIAMACHY产品的精度略差,误差标准差为2.91×10-6

关键词: 大气CO2, 卫星遥感, 地基验证

Abstract: Three total column dry-air mole fractions of CO2 (XCO2) products from satellite retrievals, including SCIAMACHY, NIES-GOSAT, and ACOS-GOSAT, in the Northern Hemisphere were validated by ground data from the Total Carbon Column Observing Network (TCCON). The results show that the satellite data show the same seasonal fluctuations with TCCON, in general with maximum in April or May and minimum in August or September. The three products all underestimate the XCO2. The accuracy of the ACOS-GOSAT product is almost the same as the NIES-GOSAT product, and their mean standard deviations are 2.26×10-6 and 2.27×10-6 , respectively. The accuracy of the SCIAMACHY product is slightly lower, with mean standard deviation of 2.91×10-6.

Key words: CO2, satellite remote sensing, validation

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