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The measurement data of the sun spectrophotometer can be directly used to perform inversion on the optical thickness of the non-water vapor channel, Rayleigh scattering, aerosol optical thickness, and moisture content of the atmospheric air column (using the measurement data at 936 nm of the water vapor channel). The aerosol optical property data set of the Tibetan Plateau by ground-based observations was obtained by adopting the Cimel 318 sun photometer, and both the Mt. Qomolangma and Namco stations were involved. The temporal coverage of the data is from 2009 to 2016, and the temporal resolution is one day. The sun photometer has eight observation channels from visible light to near infrared. The center wavelengths are 340, 380, 440, 500, 670, 870, 940 and 1120 nm. The field angle of the instrument is 1.2°, and the sun tracking accuracy is 0.1°. According to the direct solar radiation, the aerosol optical thickness of 6 bands can be obtained, and the estimated accuracy is 0.01 to 0.02. Finally, the AERONET unified inversion algorithm was used to obtain aerosol optical thickness, Angstrom index, particle size spectrum, single scattering albedo, phase function, birefringence index, asymmetry factor, etc.

Data file naming and use method

File name: the data is stored in lev10 format, and the file name is named after the time + place, such as "090101_ Nam_CO", which represents the aerosol optical characteristics in Namuco area from January 1, 2009 to December 31, 2016

Required Data Citation View Data Cite Help About Data Citation

CONG Zhiyuan. Aerosol optical property dataset of the Tibetan Plateau by ground-based observation (2009-2016). A Big Earth Data Platform for Three Poles, 2018. doi: 10.11888/AtmosPhys.tpe.00000037.file. (Download the reference： RIS | Bibtex )

1. Cong, Z.Y., Kang, S.C., Smirnov, A., &Holben, B.N. (2009). Aerosol optical properties at Nam Co, a remote site in central Tibetan Plateau. Atmospheric Research, 92(1), 42-48.( View Details | Bibtex)

Using this data, the data citation is required to be referenced and the related literatures are suggested to be cited.

Support Program

CASEarth:Big Earth Data for Three Poles（grant No. XDA19070000） (No:XDA19000000)

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License： This work is licensed under an Attribution 4.0 International (CC BY 4.0)

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