Articles | Volume 15, issue 6
Clim. Past, 15, 2053–2065, 2019
https://doi.org/10.5194/cp-15-2053-2019
Clim. Past, 15, 2053–2065, 2019
https://doi.org/10.5194/cp-15-2053-2019

Research article 19 Dec 2019

Research article | 19 Dec 2019

Two types of North American droughts related to different atmospheric circulation patterns

Angela-Maria Burgdorf et al.

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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
ED: Reconsider after major revisions (29 Jul 2019) by Alberto Reyes
AR by Angela-Maria Burgdorf on behalf of the Authors (23 Aug 2019)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (10 Sep 2019) by Alberto Reyes
RR by Anonymous Referee #2 (23 Oct 2019)
ED: Publish as is (23 Oct 2019) by Alberto Reyes
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Short summary
The western USA is frequently affected by multiannual summer droughts. They can be separated into two groups with distinct spatial patterns. This study analyzes the atmospheric circulation during multiannual droughts in a new 3-D climate reconstruction. We confirm two distinct drought types differing with respect to atmospheric circulation as well as sea surface temperatures. Our results suggest that both the Pacific and the extratropical North Atlantic region affect North American droughts.