WATER: Dataset of ground truth measurements synchronizing with Envisat ASAR in the A'rou foci experimental areas on Mar. 12, 2008
WATER: Dataset of ground truth measurements synchronizing with Envisat ASAR in the A'rou foci experimental areas on Mar. 12, 2008

The dataset of ground truth measurements synchronizing with Envisat ASAR was obtained in No.1 (freeze/thaw status), No. 2 (snow parameters) and No. 3 (freeze/thaw status) quadrates of the A'rou foci experimental areas on Mar. 12, 2008.

The Envisat ASAR data were in AP mode and VV/VH polarization combinations, and the overpass time was approximately at 11:29 BJT. The quadrates were divided into 4×4 subsites, with each one spanning a 30×30 m2 plot. Center and corner points of each subsite were chosen for all observations except for the cutting ring measurements which only observed the center points.

In No. 1 quadrate, numerous ground data were collected, the soil temperature, soil volumetric moisture, the loss tangent, soil conductivity, and the real part and the imaginary part of soil complex permittivity by the POGO soil sensor, soil volumetric moisture by ML2X, the soil volumetric moisture profile (10cm, 20cm, 30cm, 40cm, 60cm and 100cm) by PR2, the mean soil temperature from 0-5cm by the probe thermometer, soil gravimetric moisture, volumetric moisture, and soil bulk density after drying by the cutting ring (100cm^3).

In No. 2 quadrate, simultaneous with ASAR, snow parameters were measured, the snow surface temperature by the thermal infrared probe, the snow layer temperature by the probe thermometer, the snow grain size by the handheld microscope, snow density by the aluminum case, the snow surface temperature and the snow-soil interface temperature by the thermal infrared probe, snow spectrum by ASD, and snow albedo by the total radiometer.

In No. 3 quadrate soil volumetric moisture, soil conductivity, the soil temperature, and the real part of soil complex permittivity were measured by WET, the mean soil temperature from 0-5cm by the probe thermometer (5# and 7#), the surface radiative temperature by the hand-held infrared thermometer (5#), and soil gravimetric moisture, volumetric moisture, and soil bulk density after drying by the cutting ring (100cm^3).

Surface roughness was detailed in the "WATER: Surface roughness dataset in the A'rou foci experimental area". Besides, GPR (Ground Penetration Radar) observations were also carried out in No. 1 quadrate of A'rou. Those provide reliable ground data for retrieval and verification of soil moisture and freeze/thaw status from active remote sensing approaches.

Data Citations
Cite as:

Bai, Y., Cao, Y., Ge, C., Gu, J., Han, X., Li, Z., Liang, J., Ma, M., Shu, L., Wang, J., Wang, X., Wu, Y., Xu, Z., Qu, W., Chang, C., Dou, Y., Ma, Z., Yu, M., Zhao, J., Jiang, T., Xiao, P., Liu, Y., Zhang, P., Patrick, K., Yuan, X. (2013). < b>WATER: Dataset of ground truth measurements synchronizing with Envisat ASAR in the A'rou foci experimental areas on Mar. 12, 2008</b>2013. doi: 10.3972/water973.0004.db. (Download the reference: RIS | 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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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

Support Program

The CAS (Chinese Academy of Sciences) Action Plan for West Development Project

National Program on Key Basic Research Project (973 Program

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Keywords
Geographic coverage
Spatial coverage

East:100.55

South:38.015

West:100.411

North:38.078

Details
  • Format: EXCEL
  • File size: 1137.4 MB
  • Browse count:16657
  • Temporal coverage:2008-03-29 To 2008-03-29
  • Access: Offline
  • Updated time:2021-04-20
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Resource Provider: BAI Yanfen   CAO Yongpan   GE Chunmei   GU Juan   HAN Xujun   晋锐   LI Zhe   LIANG Ji   MA Mingguo   SHU Lele   WANG Jianhua   WANG Xufeng   WU Yueru   XU Zhen   QU Wei   CHANG Cun   DOU Yan   MA Zhongguo   YU Meiyan   ZHAO Jin   JIANG Tenglong   XIAO Pengfeng    LIU Yan   ZHANG Pu   PATRICK Klenk   YUAN Xiaolong  

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