TY  - Data
T1  - Heihe comprehensive remote sensing joint experiment: proba Chris ground synchronous observation data set in Yingke oasis and huazhaizi desert intensive observation area (July 1, 2008)
A1  - Ren Huazhong
A1  - Zhou Mengwei
DO  - 10.12072/ncdc.NIEER.db1753.2022
PY  - 2022
DA  - 2022-03-14
PB  - National Cryosphere Desert Data Center
AB  - On July 1, 2008, the synchronous measurement of spaceborne hyperspectral sensor proba Chris was carried out in Yingke oasis and huazhaizi desert intensive observation area. BRDF spectral data, multi angle thermal infrared radiation temperature, canopy radiation temperature, CE318 solar spectrophotometer atmospheric parameters of row sowing maize, maize and wheat in Yingke oasis maize field, maize in huazhaizi desert maize field and canopy spectra of tomato, sunflower, flax and naodou in other temporary observation points were measured.(1) The data of fraction of photosynthetically active radiation (FPAR) were collected from maize and wheat in Yingke oasis. The measuring instruments are SunScan canopy analyzer and digital camera. The incident and reflected par were measured at the same time. FPAR = (to canopy par - surface transmission par - canopy reflection par + surface reflection PAR) / to canopy par; apar = FPAR × to canopy par. (2) BRDF data of row maize. The object of measurement is row sowing corn in Yingke oasis. The instrument is ASD spectrometer (350-2500nm) of Institute of remote sensing application of Chinese Academy of Sciences and the multi angle observation frame of spectrum made by Beijing Normal University. The observation frame can measure the spectrum at the height of 5m from the ground, azimuth angle of 0-360 ° and zenith angle of - 60 ° to 60 °. The main plane and vertical main plane, vertical ridge plane and along ridge plane were selected for BRDF measurement. The interval of each observation is 10 degrees. On the main plane, the forward observation angle is positive and the backward observation angle is negative. The vertical observation is 0 ° and the angle increases gradually to both sides. At the same time, a fixed self recording point thermometer is installed on the observation frame to measure the multi angle thermal radiation temperature, which can be seen in the metadata of "Heihe comprehensive remote sensing joint experiment: Chris sy
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/fa5ec3d1-5a77-46df-a817-31c8b99e91af
ER  -