Abstract
Based on daily maximum temperature data from Chinese weather stations for the period 1960–2013, the characteristics of the interdecadal variability of large-scale extreme hot event (EHE) frequency ...
Highlights
According to IPCC AR5 (IPCC 2013), temperatures have increased globally since the early twentieth century
We investigate whether the western Pacific subtropical high (WPSH) is the main circulation factor for the interdecadal variability of large-scale extreme hot event (EHE) over the MLYR
These results indicate that the variations of the WPSH and EHE frequency over the MLYR are inconsistent on an interdecadal timescale
Summary
According to IPCC AR5 (IPCC 2013), temperatures have increased globally since the early twentieth century. The anomalous geopotential height at the middle and upper levels is an important atmospheric factor that influences the occurrence of EHEs in China (Li et al 2015; Sun, Wang, and Yuan 2011). For central and southern China, besides the geopotential height anomaly, the temperature advection at the lower level is an important atmospheric factor influencing EHEs (Sun, Wang, and Yuan 2011). Sun (2014) pointed out that the upper-level westerly is an important atmospheric factor influencing the occurrence of EHEs in the Jianghuai region. Besides the WPSH, Sun (2014) has indicated that the upper-level westerly is another important factor influencing the occurrence of EHEs in the Jianghuai region. The results of this study will deepen our understanding of the decadal variability of EHE frequency over the MLYR and its possible underlying mechanism
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