TY  - Data
T1  - Integrated remote sensing joint experiment of Heihe River: ENVISAT ASAR and MODIS ground synchronous observation data set of hydrological experimental area in the middle reaches of arid area (May 24, 2008)
A1  - Ren Huazhong
A1  - Gai yingchun
A1  - Shu Lele
A1  - Xu zhen
A1  - Li li
DO  - 10.12072/ncdc.NIEER.db1752.2022
PY  - 2022
DA  - 2022-03-14
PB  - National Cryosphere Desert Data Center
AB  - On May 24, 2008, ENVISAT ASAR and MODIS were simultaneously observed in the hydrological test area of the arid area in the middle reaches. The ground data include soil moisture and temperature, surface radiation temperature and surface roughness.ENVISAT ASAR data is AP mode, VV / VH polarization combination mode, and the transit time is about 11:34bjt.Test content:(1) Radiation temperature measured by thermal imager thermacam sc2000. The measured object is the radiation temperature of vegetation (red sand) and desert bare soil in huazhaizi desert sample plot 2. The field angle acquired by the instrument is 24 ° × 18 ° component radiation temperature data, and take optical photos in the same field of view at the same time. The shooting height of the thermal imager is about 1.2m. The sampling method is to sample along the northwest southeast diagonal of the sample plot. This data includes original data and records, instrument blackbody calibration data. The original data can be processed by using the supporting processing software thermacam research 2001, or the data can be converted into other formats in the software for self programming and reading. The blackbody calibration data of the instrument is stored in Excel format.(2) Radiation temperature measured by fixed self recording point thermometer. The measured sample plot is huazhaizi desert sample plot 2. The measured objects are vegetation (red sand) canopy and desert bare soil. The field angle of view of the instrument is about 10 °, observe vertically downward, and the sampling interval is 1s. See data document for erection height. The specific emissivity of the instrument is set to 0.95. This data includes original data and processed data after blackbody calibration and specific emissivity correction. All are saved in Excel format.(3) Radiation temperature data measured by hand-held infrared thermometer. The measurement object is huazhaizi desert sample plot 2. The measuring instrument is the hand-held infrar
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/3a8a3d75-72e0-467b-a6ca-237cbf810f56
ER  -