Atmospheric blocking induced by the strengthened Siberian High led to drying in west Asia during the 4.2&thinsp;ka&thinsp;BP event – a hypothesis

Perşoiu, Aurel; Ionita, Monica; Weiss, Harvey

doi:https://doi.org/10.5194/cp-15-781-2019

Articles | Volume 15, issue 2

https://doi.org/10.5194/cp-15-781-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

The 4.2 ka BP climatic event

https://doi.org/10.5194/cp-15-781-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 15, issue 2

Research article

|

11 Apr 2019

Research article |

| 11 Apr 2019

Atmospheric blocking induced by the strengthened Siberian High led to drying in west Asia during the 4.2 ka BP event – a hypothesis

Aurel Perşoiu, Monica Ionita, and Harvey Weiss

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Final revised paper (published on 11 Apr 2019)
Preprint (discussion started on 06 Dec 2018)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC1: 'Perşoiu et al.', Anonymous Referee #1, 12 Jan 2019
- AC1: 'reply to reviewer', Aurel Perşoiu, 20 Mar 2019
RC2: 'Comment to Perșoiu et al.', Anonymous Referee #2, 06 Mar 2019
- AC2: 'reply to reviewer 2', Aurel Perşoiu, 20 Mar 2019

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Publish subject to minor revisions (review by editor) (27 Mar 2019) by Giovanni Zanchetta

AR by Aurel Perşoiu on behalf of the Authors (27 Mar 2019) Author's response Manuscript

ED: Publish as is (29 Mar 2019) by Giovanni Zanchetta

AR by Aurel Perşoiu on behalf of the Authors (29 Mar 2019)

Short summary

We present a reconstruction of winter climate around 4.2 ka cal BP in Europe, west Asia, and northern Africa that shows generally low temperatures and heterogeneously distributed precipitation. We hypothesize that in the extratropical Northern Hemisphere the 4.2 ka BP event was caused by the strengthening and expansion of the Siberian High, which effectively blocked the moisture-carrying westerlies from reaching west Asia and also resulted in outbreaks of northerly cold and dry winds.