Research Article

Trend and Cycle Analysis of Annual and Seasonal Precipitation in Liaoning, China

Table 4

Correlations between Liaoning annual precipitation, sunspot number, East Asian Summer Monsoon (EASM), and Global-SST ENSO index (ENSO) at the four primary cycles (3–5, 10-11, 20–25, and 30–33) during the observed period.

Time scaleSunspot numberEASMENSO

3–5/
10-11
20–25//
30–33/

The Pearson correlation method was used to explain linear relationships between Liaoning regional precipitation, sunspot number, EASM, and ENSO. , denote passing correlation at 99% and 95% confidence levels, respectively. / indicates that there are no periodic signals detected at the specified time scale.