Dataset List

Vol.|Area

Data Details

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

Visitors:3338       Data Files Downloaded:106      
Data Downloaded:8370.78 MB      Citations:

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
Co-Sponsors
Superintend