Figure 5
From: Skillful prediction of hot temperature extremes over the source region of ancient Silk Road
Correlation coefficients of spring large-scale climate indices with summer hot days (HD) and heatwaves (HW) averaged over the SRASR (source region of ancient Silk Road) for the period of 1979–2016: (a) detrended time series, (b) inter-annual components of detrended time series, (c) inter-decadal components of detrended time series. The climate indices used in this study include PNA, AMM, NAO, AMO, PDO, EP-NP, Nino1 + 2, and Nino3.4. Correlations of ±0.27, ±0.32 and ±0.41 indicate the 90%, 95% and 99% significance levels (the dash lines).
