Dynamic and thermodynamic contributions to Northern China dryness in El Niño developing summer

In El Niño developing summer, Northern China shows reduced precipitation. The underlying mechanism is investigated through an analysis on the regional moisture and moist static energy budget. It shown that thermodynamic effect in relation to water vapour changes increases wetness, but it much smaller than dynamic anomalies of atmospheric circulation. anomalous vertical descent term particularly pronounced. This motion mainly constrained by horizontal advection climatological enthalpy wind, with a deficit region. A then produced compensate lose leads dryness. Further investigation Niño-induced cyclone over Northeast Asia main ingredient controlling for both budget