Chinese Space Science and Technology ›› 2023, Vol. 43 ›› Issue (2): 174-182.doi: 10.16708/j.cnki.1000-758X.2023.0032

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Landsat 8 land surface temperature product validation and analysis

LI Shenglin,LIU Bo,ZHAO Ben,LI Dacheng,WANG Yuheng,GUO Fengyun   

  1. 1 The 22nd Research Institute of China Electronics Technology Group Corporation,Xinxiang 453002,China
    2 Farmland Irrigation Research Institute,Chinese Academy of Agricultural Sciences,Xinxiang 453002,China
    3 College of Mining Technology,Taiyuan University of Technology,Taiyuan 030024,China
  • Online:2023-04-25 Published:2023-03-13

Abstract: The thermal band of Landsat series satellites has a spatial resolution of 60-120m,which plays an important role in various environmental monitoring.With the release of land surface temperature (LST) product of Landsat series satellites worldwide,the validation work also begins.However,there is still a lack of validation for long time series.Taking the middle reaches of the Heihe River Basin as the study area,the Landsat 8 LST product with 31 clear and cloudless scene images from 2013 to 2016 were verified and analyzed by using the ground measured data observed by the three weather stations of Wetland Station (SD),Gobi Station (GB) and Daman Super Station (CJZ),and the Landsat 8 LST product was compared with the widely used single-channel algorithm (JMS) inversion results.The validation results show that the accuracy of both the Landsat 8 LST product and the JMS inversion results are high,and R2 at each site is better than 0.949.Based on the analysis of all sites,the accuracy of Landsat 8 LST product is slightly higher than the JMS.

Key words:  , Landsat 8, LST product, validation, single-channel algorithm (JMS)