• Journal of Geo-information Science
  • Vol. 22, Issue 10, 2098 (2020)
Jia ZHOU1、2, Yapeng ZHAO2、3, Tianxiang YUE2、3, and Tao LU1、*
Author Affiliations
  • 1Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration Biodiversity Conservation Key Laboratory of SichuanProvince, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
  • 2University of Chinese Academy of Sciences, Beijing 100049, China
  • 3State Key Laboratory of Resourcesand Environment Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
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    DOI: 10.12082/dqxxkx.2020.190423 Cite this Article
    Jia ZHOU, Yapeng ZHAO, Tianxiang YUE, Tao LU. Near Surface Air Temperature Estimation by Combining HASM with GWR Model on a Provincial Scale[J]. Journal of Geo-information Science, 2020, 22(10): 2098 Copy Citation Text show less
    Technical flow of near surface temperature estimation based on HASM-GWR
    Fig. 1. Technical flow of near surface temperature estimation based on HASM-GWR
    Spatial distribution of meteorological stations in Sichuan Province
    Fig. 2. Spatial distribution of meteorological stations in Sichuan Province
    Verification of near-surface air temperature estimation results based on three methods
    Fig. 3. Verification of near-surface air temperature estimation results based on three methods
    Spatial distribution of monthly mean air temperature in Sichuan Province based on HASM-GWR in 2014
    Fig. 4. Spatial distribution of monthly mean air temperature in Sichuan Province based on HASM-GWR in 2014
    Residual spatial distribution estimated based on different methods
    Fig. 5. Residual spatial distribution estimated based on different methods
    OLSGWRHASM-GWR
    MAE/℃1.070.970.84
    MRE/%11.0510.598.85
    RMSE/℃1.651.481.18
    Table 1. Mean errors comparison of three methods
    1月4月7月10月
    MAE/℃MRE/%RMSE/℃MAE/℃MRE/%RMSE/℃MAE/℃MRE/%RMSE/℃MAE/℃MRE/%RMSE/℃
    OLS0.9615.681.471.1212.381.801.115.311.661.0710.841.67
    GWR0.9416.081.410.9811.631.501.044.851.490.929.811.52
    HASM-GWR0.9115.211.390.899.211.120.783.541.130.797.421.07
    Table 2. Monthly errors comparison oft hree methods
    InterceptAStatistics
    数值误差数值误差R2
    OLSM0.756 960.279 820.949 610.015 210.956 07
    GWRM0.827 190.246 700.945 170.013 410.965 20
    HASM-GWR0.521 280.202 920.971 880.011 030.977 45
    Table 3. The linear fitting parameters of the estimated value and the measured value based on three methods
    Jia ZHOU, Yapeng ZHAO, Tianxiang YUE, Tao LU. Near Surface Air Temperature Estimation by Combining HASM with GWR Model on a Provincial Scale[J]. Journal of Geo-information Science, 2020, 22(10): 2098
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