Climate of the Past
Climate of the Past
CP
Articles | Volume 12, issue 7
Articles | Volume 12, issue 7
https://doi.org/10.5194/cp-12-1555-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/cp-12-1555-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 12, issue 7
Research article
 | 
21 Jul 2016
Research article |  | 21 Jul 2016

Influence of proxy data uncertainty on data assimilation for the past climate

Anastasios Matsikaris, Martin Widmann, and Johann Jungclaus

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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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AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (05 May 2016) by Volker Rath
AR by Anastasios Matsikaris on behalf of the Authors (07 Jun 2016)  Author's response   Manuscript 
ED: Publish as is (04 Jul 2016) by Volker Rath
AR by Anastasios Matsikaris on behalf of the Authors (10 Jul 2016)  Manuscript 
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Short summary
We have assimilated proxy-based (PAGES 2K) and instrumental (HadCRUT3v) observations into a General Circulation Model (MPI-ESM-CR). Assimilating instrumental data improves the performance of Data Assimilation. No skill on small spatial scales is however found for either of the two schemes. Errors in the assimilated data are therefore not the main reason for this lack of skill; continental mean temperatures cannot provide skill on small spatial scales in palaeoclimate reconstructions.
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