This work was jointly supported by the National Natural Science Foundation of China(Grant Nos.42130610,42075040,and 42175078);the Joint Research Project for Meteorological Capacity Improvement(Grant No.22NLTSQ002);Guangdong Major Project of Basic and Applied Basic Research(2020B0301030004);the Innovation and development project of China Meteorological Administration(Grant No.CXFZ2022J030).
Extreme summer heat can have serious socioeconomic impacts in North China.Here,we explore the decadal variability of the number of extreme heat days in early-to-mid summer(June and July)and a related potential mechani...