Spatial-Temporal Patterns Dataset of Diurnal Freeze-thaw Cycles of the Near-surface Soil in Qinghai-Tibet Plateau (2002-2020)
SHEN Qikai1LIU Xiuguo1ZHOU Xin1ZHANG Zhengjia1CHEN Qihao1
1 School of Geography and Information Engineering，China University of Geosciences (Wuhan)，Wuhan 430074，China
DOI:10.3974/geodb.2023.03.04.V1
Published:Mar. 2023
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Key Words：
Qinghai-Tibet Plateau,diurnal freeze-thaw cycles,near-surface soil,multi-source remote sensing
Abstract：
The Spatial-Temporal Patterns Dataset of Diurnal Freeze-thaw Cycles of the Near-surface Soil in Qinghai-Tibet Plateau (2002-2020) was developed based on the integration among AMSR-E, AMSR-2, and MODIS LST products with Fourier functions. The dataset includes the following data covering Qinghai-Tibet Plateau region from 2002-2020: (1) distribution data of the average number of days of diurnal freeze-thaw cycles per year; (2) distribution data of the average monthly number of days of diurnal freeze-thaw cycles; (3) distribution data of the rate of change of the number of days of diurnal freeze-thaw cycles; (4) distribution data of the annual starting points of diurnal freeze-thaw cycles; (5) the starting date changes of diurnal freeze-thaw cycles; (6) area changes of diurnal freeze-thaw cycles; (7) In situ observation data at Wushaoling station; (8) FTI and LST at Shiquanhe and Wudu stations; (9) accuracy validation data. The spatial data is in 1 km grid. The dataset is archived in .tif, .xlsx and .txt formats, and consists of 33 data files with data size of 391 MB (compressed to 1 file with 78.9 MB). The analysis paper based on the dataset will be published in coordination with Acta Geographica Sinica, Vol. 78, No. 3, 2023.
Foundation Item：
National Natural Science Foundation of China (41801348, 41771467)
Data Citation：
SHEN Qikai, LIU Xiuguo, ZHOU Xin, ZHANG Zhengjia, CHEN Qihao. Spatial-Temporal Patterns Dataset of Diurnal Freeze-thaw Cycles of the Near-surface Soil in Qinghai-Tibet Plateau (2002-2020)[J/DB/OL]. Digital Journal of Global Change Data Repository, 2023. https://doi.org/10.3974/geodb.2023.03.04.V1.
References：
[1] Hu, T., Zhao, T., Zhao, K., et al. A continuous global record of near-surface soil freeze/thaw status from AMSR-E and AMSR2 data [J]. International Journal of Remote Sensing, 2019, 40(18): 6993-7016.
[2] Zhao, T. J., Shi, J. C., Hu, T. X., et al. Estimation of high-resolution near-surface freeze/thaw state by the integration of microwave and thermal infrared remote sensing data on the Tibetan Plateau [J]. Earth and Space Science, 2017, 4(8): 472-484.
[3] Zhang, Y. L., Li, B. Y., Zheng, D. A discussion on the boundary and area of the Tibetan Plateau in China [J].Geographical Research, 2002, 21(1): 1-8.
[4] Zhang, Y. L., Li, B. Y., Zheng, D. Datasets of the boundary and area of the Tibetan Plateau [J/DB/OL]. Digital Journal of Global Change Data Repository, 2014. https://doi.org/10.3974/geodb.2014.01.12.V1.
Data Product:
| ID |
Data Name |
Data Size |
Operation |
| 1 |
SoilFreezeThawCycleTibetanPlateau_2002-2020.rar |
80864.93KB |
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