TY - Data T1 - Heihe integrated remote sensing joint experiment: ground synchronous observation data set of L & K-band airborne microwave radiometer in Linze grassland intensive observation area (May 25, 2008) A1 - Jin rui A1 - Gai Chunmei A1 - Han Xujun A1 - HuangChunling A1 - Ran youhua A1 - Song Yi DO - 10.12072/ncdc.NIEER.db1868.2022 PY - 2022 DA - 2022-03-15 PB - National Cryosphere Desert Data Center AB - On May 25, 2008, an aviation flight of L&K band airborne microwave radiometer was carried out in Linze grassland intensive observation area. This data can provide a basic ground data set for the development and verification of passive microwave remote sensing algorithm for retrieving soil moisture and soil salt. The ground synchronous observation is carried out in the dense observation area of Linze grassland, including microwave synchronous sample band 1, sample band 2, sample band 3, sample band 4, sample band 5 and sample band 6. Each sample strip is arranged perpendicular to the route direction. There are 25 sampling points on each sample strip, and the spacing of each sampling point is 100m. The main surface type of sample belt 7 is sandy land, and the soil moisture content is very small. Therefore, supplementary measurement was carried out on June 2. Microwave synchronous sample belts 1, 2, 3 and 4 were used to obtain the real and imaginary parts of soil temperature, soil moisture, loss tangent, soil conductivity and soil complex dielectric constant by pogo portable soil sensor; Needle thermometer to obtain 0-5cm average soil temperature; The hand-held infrared thermometer obtains the surface radiation temperature for 3 times; Microwave synchronous belts 5 and 6 were used to measure the soil volume water content, electrical conductivity, real part of soil complex dielectric constant and soil temperature; The average soil temperature of 0-5cm was obtained by needle thermometer; The hand-held infrared thermometer obtains the surface radiation temperature three times. Microwave synchronous sample belt 7, using pogo portable soil sensor to obtain the real and imaginary parts of soil temperature, soil moisture, loss tangent, soil conductivity and soil complex dielectric constant; Needle thermometer to obtain 0-5cm average soil temperature; Hand held infrared thermometer to obtain surface radiation temperature; And the ring knife soil is dried to obtain the weight w DB - NCDC UR - http://www.ncdc.ac.cn/portal/metadata/954d1298-f0ef-4981-8c55-1a6f48e93757 ER -