TY  - Data
T1  - Heihe integrated remote sensing joint test: ground synchronous observation data set of L & K-band airborne microwave radiometer in the encrypted observation area of Linze station (May 25, 2008)
A1  - Sun Qingsong
A1  - Wang Yang
DO  - 10.12072/ncdc.NIEER.db1852.2022
PY  - 2022
DA  - 2022-03-15
PB  - National Cryosphere Desert Data Center
AB  - On May 25, 2008, L & amp was carried out in the desert East-West transect, desert north-south transect and wulidun farmland transect in the intensive observation area of Linze station; K-band airborne microwave radiometer ground synchronous observation was carried out to observe soil moisture, surface radiation temperature and multi angle reflectance. 1. Soil moisture observation; Observation target: 0-5cm topsoil. Observation instrument: ring knife (volume 50cm ^ 3), ml2x soil moisture rapid tester. Observation quadrats and sampling times: Desert East-West sample zone (including 40 sub quadrats, each sub quadrat corner point ring knife sampling), desert north-south sample zone (including 9 sub quadrats, each sub quadrat inner ring knife sampling for 3 times), midpoint sampling of 9 small quadrats in farmland quadrats, encryption of No. 5 quadrat in the center, and measurement of 4 corner points (each measuring point ring knife sampling for 1 time, Ml2x soil moisture meter (1 observation). The pretreatment data is soil volume water content. Data storage: Excel. 2. Surface radiation temperature observation; Observation instrument: hand held infrared thermometer (cold and drought Institute 5#, cold and drought Institute 6#, Geography Institute); All instruments have been calibrated (please refer to the calibration data of handheld infrared thermometer. XLS). Observation quadrat and observation times: in the east-west and North-South transects of the desert, each small quadrat shall be sampled several times at the time of aircraft transit; Wulidun farmland quadrat shall be sampled twice every 15m from east to west at the time of aircraft transit. Preprocessing data according to the thermal infrared calibration data (the standard source is blackbody), the measured temperature of each instrument is linearly fitted with the corresponding blackbody temperature to obtain the fitting equation, and then the above fitted equation is used to calibrate the observed original obse
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/59d57c08-88af-477a-a3aa-4e2e503c44b6
ER  -