TY  - Data
T1  - Integrated remote sensing joint experiment of Heihe River: profichris ground synchronous observation data set of Yingke oasis and huazhaizi desert intensive observation area (June 22, 2008)
A1  - Ren Huazhong
A1  - Fan wenjie
DO  - 10.12072/ncdc.NIEER.db1758.2022
PY  - 2022
DA  - 2022-03-14
PB  - National Cryosphere Desert Data Center
AB  - 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 
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/2d07d94c-b54b-4ed5-aaff-f1a240fa891f
ER  -