Summer precipitation anomalies in Asia and North America induced by Eurasian non-monsoon land heating versus ENSO.

ABSTRACT: When floods ravage Asian monsoon regions in summer, megadroughts often attack extratropical North America, which feature an intercontinental contrasting precipitation anomaly between Asia and North America. However, the characteristics of the contrasting Asian-North American (CANA) precipitation anomalies and associated mechanisms have not been investigated specifically. In this article, we firmly establish this summer CANA pattern, providing evidence for a significant effect of the land surface thermal forcing over Eurasian non-monsoon regions on the CANA precipitation anomalies by observations and numerical experiments. We show that the origin of the CANA precipitation anomalies and associated anomalous anticyclones over the subtropical North Pacific and Atlantic has a deeper root in Eur

SUBMITTER: Zhao P 

PROVIDER: S-EPMC4768350 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature