The distribution of dry, normal and wet years at the 11 synoptic stations during the period from 1957 to 2014.

<p>The distribution of dry, normal and wet years at the 11 synoptic stations during the period from 1957 to 2014.</p

Results of the statistical tests for the seasonal and annual precipitation data over the period from 1957 to 2014.

<p>Results of the statistical tests for the seasonal and annual precipitation data over the period from 1957 to 2014.</p

Geographical descriptions of the synoptic stations used in this study.

<p>Geographical descriptions of the synoptic stations used in this study.</p

The annual temperature time series at the 11 synoptic stations.

<p>The corresponding arrows indicate the time point of mutation of each station.</p

Lag-1 serial correlation coefficients of precipitation on different scales.

<p>Lag-1 serial correlation coefficients of precipitation on different scales.</p

Isolines of the real parts of the Morlet wavelet coefficients and the wavelet variance for the principal scales of seasonal temperature.

<p>Isolines of the real parts of the Morlet wavelet coefficients and the wavelet variance for the principal scales of seasonal temperature.</p

Statistical parameters for the annual temperature data from the 11 synoptic stations during the period from 1957 to 2014.

<p>Statistical parameters for the annual temperature data from the 11 synoptic stations during the period from 1957 to 2014.</p

Lag-1 serial correlation coefficients of temperature on different scales.

<p>Lag-1 serial correlation coefficients of temperature on different scales.</p

Abrupt changes in the annual temperature at the 11 synoptic stations during the period from 1957 to 2014.

<p>Abrupt changes in the annual temperature at the 11 synoptic stations during the period from 1957 to 2014.</p

Results of the statistical tests for monthly precipitation data from 1957 to 2014.

<p>Results of the statistical tests for monthly precipitation data from 1957 to 2014.</p