%0 Dataset
%T Heihe River Integrated Remote Sensing joint experiment: Airborne widas ground synchronous observation data set in Yingke oasis and huazhaizi desert intensive observation area (June 29, 2008)
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/1647d3c1-53ba-4105-98a4-e30dc0a31fda
%W NCDC
%R 10.12072/ncdc.NIEER.db1771.2022
%A Ren Huazhong
%K Photosynthetic effective radiation;canopy spectrum;vegetation;aerosol;canopy temperature;aerosol backscatter;infrared wide-angle dual-mode imager;widas;solar spectrophotometer;ground verification information;aerosol optical depth
%X On June 29, 2008, the ground synchronous observation of wide angle infrared dual mode line / area array scanner (widas) was carried out in Yingke oasis and huazhaizi desert intensive observation area as a supplementary synchronous observation. Widas is composed of four CCD cameras, a mid infrared thermal imager (AGEMA 550) and a thermal infrared thermal imager (S60). It can simultaneously obtain data of five angles in the visible / near infrared (CCD) band, seven angles in the mid infrared (MIR) band and seven angles in the thermal infrared (TIR) band.Ground data include ASD spectrometer data, Lai, photosynthetic rate, FPAR, albedo, radiation temperature, specific emissivity, coverage and CE318 solar spectrophotometer atmospheric parameters data.  Measurement content:(1) CE318 solar spectrophotometer atmospheric parameters. Measurement location for the Huazhaizi desert sample site 2. CE318 solar spectrophotometer through direct solar radiation measurement data, can be inverse performance of non-water vapor channel optical thickness, Rayleigh scattering, aerosol optical thickness, water vapor channel 936nm measurement data can be obtained from the atmospheric air column of the water vapor content, the horizontal visibility can also be derived from the CE318 data. The CE318 from Beijing Normal University was used in this measurement, which can provide the optical thickness in five bands, 1020nm, 936nm, 870nm, 670nm and 440nm, and can be used to invert the water vapor content of the atmospheric column using the 936nm measurement data. This data includes raw data and processed atmospheric data. The raw data are stored in the CE318 specific file format .k7, which can be opened by ASTPWin software and accompanied by the description file ReadMe.txt; the processed file includes the optical thickness, Rayleigh scattering, aerosol optical thickness, horizontal visibility and near-surface atmospheric temperature obtained by using the inversion of the raw data, as well as the s