(1) microwave radiometer observations;
(2) the surface radiative temperature by the handheld infrared thermometer and the physical temperature by the thermocouple thermometer;
(3) the frost depth by the chopstick and the ruler. The soil was considered frozen when it was hard and with ice crystal;
(4) Snow depth by the ruler;
(5) the gravimetric soil moisture (soil samples from 0-1cm, 1-3cm and 3-5cm) by the microwave drying method. The volumetric moisture can be calculated by the gravimetric moisture and bulk density. The data can be opened by Microsoft Office.
The sample point coordinates were also included.
Data Citation Zhang Lixin, Che Tao, Chang Sheng, Fang Qian, Liang Xingtao, Liu Zhigang, Liu Chenzhou, Pan Jinmei, Peng Danqing, Qu Ying, Ren Huazhong, Yin Xiaojun, Zhang Yongpan, Zhang Zhiyu, Zhao Shaojie, Zhao Tianjie, Zheng Yue, Zhou Ji, Zhang Zhiyu. WATER: Dataset of ground truth measurement synchronizing with the airborne microwave radiometers (L&K bands) mission in the Biandukou foci experimental area on Mar. 21, 2008. Beijing Normal University; Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Science; Institute of Remote Sensing Applications, Chinese Academy of Sciences. 2008. doi:10.3972/water973.0030.db
The dataset is generated from the "Watershed Airborne Telemetry Experimental Research (WATER) “, the user must have a clear statement in the article of the original data source and adopt the reference style providing by the metadata in the References section.