This work was supported by the National Natural Science Foundation of China (Grant 41374034).
The citation for the dataset is
Zhang, W., Y. Lou, J. Haase, R. Zhang, G. Zheng, J. Huang, C. Shi, and J. Liu, 2017: 
The Use of Ground-based GPS Precipitable Water Measurements over China to Assess Radiosonde 
and ERA-Interim Moisture Trends and Errors from 1999-2015. J. Climate *:**-**

Permission to use the data is granted on condition that the following acknowledgement is included in any use of the data:
The GNSS data was provided by the CMONOC, with support from National Earthquake Infrastructure Service in China.

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Contact: Dr. Zhang
Email: w4zhang@ucsd.edu or zhangweixing89@whu.edu.cn