TY - Data T1 - Heihe River eco hydrological remote sensing experiment: infrared temperature observation data set of airport desert in the middle reaches of Heihe River Basin (2018) A1 - Ma mingguo DO - 10.12072/ncdc.nieer.db2855.2023 PY - 2021 DA - 2021-09-14 PB - National Cryosphere Desert Data Center AB - The purpose of the airport desert infrared temperature system is to provide ground calibration observation data for aviation TASI, widas and L-band flights. Observation site: the large area, homogeneous and flat desert near Zhangye airport is selected as the observation point, and the vegetation is sparse and low shrubs. Coordinates of the observation point: 38 ° 46'41.30 "n, 100 ° 41'48.10" E. Measuring instrument: the observation probe is a vertical s1-111 infrared temperature probe to the ground and a si-111 infrared temperature probe to the sky with a zenith angle of 35 degrees due south (newly purchased in 2012, the default surface emissivity is 1 when it leaves the factory, and blackbody calibration is not carried out during the test). Campell CR1000 data is automatically recorded, the probe frame is 4m high, and the instrument faces due south. Measurement time: the instrument has been observing normally since June 10, 2012. Up to now, it has been observing continuously for 24 hours, recording data once in 5 seconds, and outputting two groups of values in 5 seconds and 1 minute. Data content: surface temperature (tart)_ Sur, without correction of surface specific emissivity and background temperature), sky temperature (tart)_ ATM, without sky background specific emissivity correction). The data is finally stored as an independent text file for one day. The data naming method is: data format + observation point name + data sampling time + date + time. Dat. For detailed data header information, see the data header description in the data. DB - NCDC UR - http://www.ncdc.ac.cn/portal/metadata/eed1bc60-a37b-43f4-a724-b36ebbcad803 ER -