On May 25, 2008, the ground synchronous observation test for airborne microwave radiometer (L & K band) was carried out in the Bian Du Kou encrypted observation area.
The measurement contents mainly include surface soil temperature, surface roughness and ground penetrating radar.
The soil temperature was measured by flat mouth sample band 1, flat mouth sample band 2, flat mouth sample band 3, flat mouth sample band 4, flat mouth sample band 5, flat mouth sample band 6 and flat mouth sample band 7. The roughness was measured by roughness plate and camera. Ground penetrating radar and TDR data are measured at the same time.
On May 25, 2008, the ground synchronous observation test for airborne microwave radiometer (L & K band) was carried out in the Bian Du Kou encrypted observation area. The measurement contents mainly include surface soil temperature, surface roughness and ground penetrating radar. This dataset includes:
（ 1) Roughness photos and preprocessed data
（ 2) Soil temperature synchronization data
（ 3) Quadrat and transect coordinate point data
（ 4) Ground penetrating radar data
（ 5) Microwave radiometer data
Soil temperature: flat mouth sample band 1, flat mouth sample band 2, flat mouth sample band 3, flat mouth sample band 4, flat mouth sample band 5, flat mouth sample band 6 and flat mouth sample band 7. The soil temperature was measured.
Roughness measurement: roughness plate and camera are used for measurement. Processing result: the file with "result" field in the file name in the data is the processing result of roughness. The first column is the surface height root mean square height. In fact, there is only one value, so the data in this column are the same; The second column is the distance and the third column is the correlation function value. When the correlation function value is 1 / E, the distance value is the correlation length; Unit: cm.
Since the surface roughness changes little in a certain period of time, the surface roughness in the quadrat before and after that day can use today's data. Existing problems: from the data, due to the lack of experience of surveyors, the effect of some photos is not good. Manually read the surface relief profile on the photo, obtain the surface relief height value with an interval of 1cm, and write it into the notepad file. Then, the root mean square height and correlation length of surface roughness are calculated by program
Good data quality
This work is licensed under
CC BY 4.0 (Creative Commons Attribution 4.0 International License).
CSTR:11738.11.ncdc.NIEER.2021.1945
10.12072/ncdc.NIEER.db1770.2022
