On June 22, 2008, the spaceborne hyperspectral sensor proba Chris was synchronously measured in the dense observation area of Yingke oasis and huazhaizi desert. BRDF spectral data and CE318 solar spectrophotometer atmospheric parameter data of row sowing maize were measured in Yingke oasis maize field; BRDF spectral data and albedo data of desert vegetation and bare soil were measured in huazhaizi desert sample plot 2.

  Measurement content:

 （ 1) Albedo data measured in huazhaizi desert sample plot 2. The measuring instrument includes the voltage value in the upper table and the voltage value in the lower table of the shortwave meter, which is converted into albedo data through the sensitivity coefficient of the meter. The relationship between field radius R and probe height h in the following table is: r = 10h. This data is stored in Excel.

 （ 2) BRDF spectral data of row sowing maize in Yingke oasis and huazhaizi desert sample plot 2. The measuring instruments for row sowing corn are ASD spectrometer of Peking University (350-2500nm) and spectral multi angle observation frame made by Beijing Normal University. The observation frame can carry out spectral measurement at the height of 5m from the ground, azimuth angle of 0 ~ 360 ° and zenith angle of - 60 ° ~ 60 °. In the BRDF measurement of row sowing maize, the main plane and vertical main plane, vertical ridge plane and along ridge plane were selected for observation. Each observation is made at 10 ° intervals. The forward observation angle on the main plane is positive and the backward observation angle is negative. The vertical observation is 0 °, and the angle value gradually increases to both sides. The instrument for desert BRDF measurement is ASD spectrometer of Institute of remote sensing application, Chinese Academy of Sciences and its self-made multi angle observation frame. The maximum height of the observation frame is 2m, the zenith angle is - 70 ° ~ 70 °, and ± 45 ° is inserted. The azimuth is changed by moving the base. The original data of this data is in ASD standard format and can be opened with its own software viewspec. The original data is exported, and the reflectivity needs further calculation. The processed reflectance data is saved in Excel format.

 （ 3) CE318 solar spectrophotometer atmospheric parameter data. This data set is the atmospheric parameters measured by the solar spectrophotometer produced by cimel, France. The survey site is huazhaizi desert sample plot 2. CE318 solar spectrophotometer can inverse the optical thickness, Rayleigh scattering and aerosol optical thickness of non water vapor channel through direct solar radiation measurement data. The water vapor content of atmospheric column can be obtained from 936nm measurement data of water vapor channel, and the horizontal visibility can also be derived from CE318 data. CE318 of Beijing Normal University is used in this measurement, which can provide the optical thickness of five bands: 1020nm, 936nm, 870nm, 670nm and 440nm, and the water vapor content of the atmospheric column can be retrieved from the 936nm measurement data. This data includes original data and processed atmospheric data. The original data is stored in CE318 unique file format *. K7, which can be opened with astpwin software, and the description file readme.txt is attached; The processed documents include the optical thickness, Rayleigh scattering, aerosol optical thickness, horizontal visibility and near surface atmospheric temperature retrieved from the original data, as well as the solar azimuth, zenith angle, sun earth distance correction factor and atmospheric column mass number involved in the calculation. The data results are saved in Excel format.