Precipitation in Central Asia shaped by sea surface temperature over tropical Pacific and North Atlantic

Phys.org  August 26, 2021
Central Asia is one of the major food-producing regions in the world. Its agricultural production relies heavily on climate conditions, especially precipitation. Researchers in China found that both the decadal scale warming over the tropical Pacific and North Atlantic are favorable for wetter conditions over Central Asia. During the positive phase of tropical Pacific decadal variability (TPDV) (warm tropical Pacific), the sea surface temperature (SST) anomalies over tropical Pacific can lead to more precipitation over Central Asia, especially the southern and southeastern region. The warm phase of AMV (warm North Atlantic) can excite a circumglobal teleconnection pattern and favors precipitation over Central Asia, especially the northern part. They obtained these results based on the pacemaker experiments of two coupled models (CESM1.2 and MRI-ESM2-0)… read more. Open Access TECHNICAL ARTICLE 

The effect of tropical Pacific decadal variability and the Atlantic multidecadal variability on Central Asian precipitation. Credit: Jiang Jie and Zhou Tianjun