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Provides China meteorological data for download.

Radiation data

  • Hourly solar radiation data (Observation)

Provides hourly measurement results of radiation observation stations, including hourly total radiation irradiance, net total radiation, direct radiation, scattered radiation, and reflected radiation data.

  • Hourly Solar Radiation Data (Simulation)

Provides hourly data of total solar radiation from more than 2,000 stations since 2019. This product is mainly developed based on the HYBRID / MLWT2 model. Compared with the measured value, the average product error is -0.1 W⁄m ^ 2, the relative error is -0.04%, and the correlation coefficient is 0.98.

air quality

  • Air quality historical hour data

  • Air quality real-time hourly data