WATER: Dataset of ground-based RPG-8CH-DP microwave radiometer and ground truth observations for soil freeze/thaw cycle in the A'rou foci experimental area


The dataset of ground-based RPG-8CH-DP microwave radiometer and ground truth observations for soil freeze/thaw cycle was obtained in the A'rou foci experimental area from Mar. 10 to 11, 2008.

The radiometer was set 4.5m height above a smooth land, which was covered with snow less than 10cm deep. The field of view was roughly determined and not as ideal. Frozen soil was observed clockwise 240° and snow clockwise 270° with the truck head as the 0 degree azimuth; the elevation angle was set at -40° for the former, and from -20° to -70° for the latter.

Observation items included surface soil moisture (microwave drying to get the gravimetric moisture), the soil temperature by the thermal resistor and vegetation. The shallow layer of the site was covered with withered grass with exuberant roots underground due to rich organic. The soil temperature changes were reflected by the thermal resistor and recorded by the DataTaker.

The brightness temperature was archived as .BRT and .txt files (the ASCII format). Data in two formats were the same. Each row in .txt format was listed by year, month, date, hour, minute, second, 6.925GHz (h), 6.925GHz (v), 10.65GHz (h), 10.65GHz (v) , 18.7GHz (h), 18.7GHz (v), 36.5GHz (h), 36.5GHz (v), the elevation angle, and the azimuth angle. Values for 6.925GHz and 10.65GHz were zero due to disfunction.


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WATER: Dataset of ground-based RPG-8CH-DP microwave radiometer and ground truth observations for soil freeze/thaw cycle in the A'rou foci experimental area. A Big Earth Data Platform for Three Poles, 2013. doi: 10.3972/water973.0017.db. (Download the reference: RIS | Bibtex )

Related Literatures:

1. Zhao TJ, Zhang LX, Jiang LM, Zhao SJ, Chai LN, Jin R. A new soil freeze thaw discriminant algorithm using AMSR-E passive microwave imagery. Hydrological Processes, 2011, 25(11): 1704-1716. DOI: 10.1002/hyp.7930.( View Details | Download | Bibtex)

Using this data, the data citation is required to be referenced and the related literatures are suggested to be cited.


References literature

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Support Program

National Program on Key Basic Research Project (973 Program (No:2007CB714400)

The CAS (Chinese Academy of Sciences) Action Plan for West Development Project (No:KZCX2-XB2-09)

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The authors of this data do not specify data usage restrictions, please respectintellectual property rights and laws, and do not use the data for illegal purposes


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Geographic coverage
East: 100.55 West: 100.41
South: 38.02 North: 38.08
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  • File size: 3 MB
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  • Temporal coverage: 2008-03-10 To 2008-03-11
  • Updated time: 2019-08-09
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: 常胜   潘金梅   彭丹青   张志玉   赵少杰   郑越   殷小军  

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