%0 Dataset
%T Heihe River Integrated Remote Sensing joint test: data set of L-band airborne microwave radiometer and infrared thermal imager in Binggou aquo flight area (April 1, 2008)
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/8dea2fa0-5796-4cc4-875b-4a49d28ff408
%W NCDC
%R 10.12072/ncdc.NIEER.db1835.2022
%A Wang shuguo
%A Chetao
%A Xiao qing
%K Geodesy / gravity;differential GPS;thermal imager;airborne;ground remote sensing;microwave radiometer
%X This data set was acquired by L-band airborne microwave radiometer and infrared thermal imager sensor on the afternoon of April 1, 2008, in Binggou ARJO flight area. The L-band frequency is 1.4GHz, and the back view is 35 degrees to obtain the dual polarization (H and V) information. The plane took off from Zhangye airport at 12:48 (Beijing time, the same below) and landed at 16:35. 13: At 20-13:58, he worked in the Binggou photography area and observed four routes 8-2, 8-6, 8-11 and 8-17. The flight altitude was about 5000m and the flight speed was about 260km / hr. 14: At 04-15:27, the scheduled flight mission of 10 routes in Aru was completed, and lines 6-2, 6-3 and 6-4 were added at 15:33-15:53. The flight altitude was about 4100m and the flight speed was about 260km / hr. 16: 12 flew over the 7-9 reservoir alignment, with a navigation height of 100m, but the water surface was frozen, so the observation was completed. The original data is divided into three parts: microwave radiometer data, infrared thermal imager data and GPS data. The L-band microwave radiometer belongs to non imaging observation. The digital values obtained from instantaneous observation are recorded by text files, and the longitude and latitude during flight and aircraft attitude parameters are recorded by GPS data. The wavelength range of the thermal imager is 7.5-13 microns and the field angle is 24 × 18º，320 × 240 pixels.When using microwave radiometer observation data, it is necessary to convert the recorded digital value into bright temperature value according to the calibration coefficient (the calibration coefficient file is archived with the original observation data). At the same time, through the respective clock records of microwave radiometer and GPS, microwave observation can be connected with GPS record to match geographic coordinate information for microwave observation. Due to the coarse observation resolution of microwave radiometer, the yaw, roll and pitch effects of aircra