Funding for this research was provided by:
National Natural Science Foundation of China (61674025, 61306035)
Fundamental Research Funds for the Central Universities (ZYGX2016J056)
Open Projects of Sichuan Key Laboratory of Meteorological Information and Signal Processing (QXXCSYS201603, QXXCSYS201504)
Text and Data Mining valid from 2019-01-24
Received: 17 December 2018
Accepted: 14 January 2019
First Online: 24 January 2019
: The authors declare that they have no competing interests.
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