Blended soil moisture data product over Tibetan Plateau

Blended soil moisture data product over Tibetan Plateau, using remote sensing observations, in-situ measurements and model simulations.The in situ soil moisture (SM) observation, combined with the classification of climate zones over the TP, were used to produce the in situ measured SM climatology at the plateau scale. The generated TP scale in situ SM climatology was then used to scale the model-simulated SM data, which was subsequently used to scale the SM satellite observations. The climatology-scaled satellite and model-simulated SM were then blended objectively, by applying the triple collocation and least squares method. The final blended SM can replicate the SM dynamics across different climatic zones, from sub-humid regions to semi-arid and arid regions over the TP.

Soil Moisture, Climatic zones, Tibet-Obs, Triple collocation, AMSRE, ASCAT, ERA-Interim
:Yijian Zeng :Hengelosestraat 99, 7514 AE, Enschede
:y.zeng@utwente.nl :0031 53 4874498

Data content: Soil Moisture Data, blended from both Active and Passive Remote Sensing data, constrained with the observed in-situ SM climatology over Tibetan Plateau (i.e. Tibet-Obs).

Data source: University of Twente, the Netherlands

Purpose: Water Cycle and Climate Change

Time range: 01/05/2008-31/12/2010 (will be updated till 31/10/2016 soon)

Spatial range: 25~40 °N, 74~104 °E

Data format: *.mat

Subject: Land Surface Water Storage

- Temporal Resolution: Daily, starting from 01/05/2008

- Spatial Resolution: 0.25° × 0.25°

- Dimensions of Dataset: 61 × 121 × 975

- Unit: cm^3 cm^-3

1. Su, Z., Wen, J., Dente, L., van der Velde, R., Wang, L., Ma, Y., Yang, K., & Hu, Z. (2011). The Tibetan Plateau observatory of plateau scale soil moisture and soil temperature (Tibet-Obs) for quantifying uncertainties in coarse resolution satellite and model products. Hydrology and Earth System Sciences, 15, 2303-2316

2. Zeng, Y., Su, Z., van der Velde, R., Wang, L., Xu, K., Wang, X., & Wen, J. (2016). Blending Satellite Observed, Model Simulated, and in Situ Measured Soil Moisture over Tibetan Plateau. Remote Sensing, 8, 268, doi:210.3390/rs8030268

Zeng, Y., Su, Z., van der Velde, R., Wang, L., Xu, K., Wang, X., & Wen, J. (2016). Blending Satellite Observed, Model Simulated, and in Situ Measured Soil Moisture over Tibetan Plateau. Remote Sensing, 8, 268, doi:210.3390/rs8030268

Open for Evaluation

Su, Z., de Rosnay, P., Wen, J., Wang, L., & Zeng, Y. (2013). Evaluation of ECMWF's soil moisture analyses using observations on the Tibetan Plateau. Journal of Geophysical Research: Atmospheres, 118, 5304-5318

The data can only be utilized for academic research. Use of the data for other purposes (e.g. commercial use) is prohibited. No user is allowed to transfer the data to any third party. 

Users are suggested to refer to the following publications:

1. Su, Z., Wen, J., Dente, L., van der Velde, R., Wang, L., Ma, Y., Yang, K., & Hu, Z. (2011). The Tibetan Plateau observatory of plateau scale soil moisture and soil temperature (Tibet-Obs) for quantifying uncertainties in coarse resolution satellite and model products. Hydrology and Earth System Sciences, 15, 2303-2316

2. Zeng, Y., Su, Z., van der Velde, R., Wang, L., Xu, K., Wang, X., & Wen, J. (2016). Blending Satellite Observed, Model Simulated, and in Situ Measured Soil Moisture over Tibetan Plateau. Remote Sensing, 8, 268, doi:210.3390/rs8030268

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