The leading mode of wintertime cold wave frequency in northern China during the last 42 years and its association with Arctic oscillation
This study examined wintertime (November−April) cold wave frequency (CWF) in northern China during the last 42 years and its association with Arctic Oscillation (AO) through analysis of daily mean surface temperature from 280 stations across northern China and European Centre for Medium-Range Weather Forecasts (ECMWF) 40-Year Re-analysis ERA-40 data.