Articles | Volume 19, issue 24
Research article
16 Dec 2019
Research article |  | 16 Dec 2019

The role of spring dry zonal advection in summer drought onset over the US Great Plains

Amir Erfanian and Rong Fu


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Amir Erfanian on behalf of the Authors (30 Jun 2019)  Author's response
ED: Publish as is (09 Sep 2019) by Timothy J. Dunkerton
Short summary
An eastward advection of dry and warm air in spring was identified as a major drought onset mechanism over the US Great Plains (GP). Further breakdown of the zonal advection into the dynamic versus thermodynamic contributions revealed dominance of the latter in the tropospheric drying observed during the onset of GP 2011 and 2012 droughts. The dependence of thermodynamic advection on moisture gradient links the spring precipitation in the Rockies and US southwest to the GP summer precipitation.
Final-revised paper