Figure 2
From: Skillful prediction of hot temperature extremes over the source region of ancient Silk Road
Correlation pattern of summer hot days (left panel) and heatwaves (right panel) averaged over the SRASR (source region of ancient Silk Road) enclosed by the black box with preceding spring soil temperature from (a,b) GLDAS-Noah and (c,d) ERA-interim for the period of 1979–2016. All data are detrended before correlation coefficients are calculated. The blue box represents the key region of soil temperature [62°E–73°E, 36°N–51°N], which is located in Central Asia, and the black solid line denotes topographic contour line of 3000 m. Correlations of ±0.27, ±0.32 and ±0.41 indicate the 90%, 95% and 99% significance levels. This map was generated with NCAR Command Language (NCL) version 6.3.0 (Boulder, Colorado: UCAR/NCAR/CISL/TDD. http://dx.doi.org/10.5065/D6WD3XH5).
