Beijing Municipal Climate Center;
Beijing Meteorological Bureau;
Beijing 100089;
China;
National Climate Center;
China Meteorological Administration;
Beijing 100081;
China;
Key Laboratory for Semi-Arid Climate Change of the Ministry of Education;
College of Atmospheric Sciences;
Lanzhou University;
Lanzhou 730000;
China;
north China August precipitation(NCAP); north-east North Atlantic Tripole(NAT); Eurasian decadal teleconnection(EAT)pattern; coupled oceanicatmospheric bridge(COAB); decadal variability;