Paleo calendar-effect adjustments in time-slice and transient climate-model simulations (PaleoCalAdjust v1.0): impact and strategies for data analysis

Bartlein, Patrick J.; Shafer, Sarah L.

doi:https://doi.org/10.5194/gmd-12-3889-2019

Articles | Volume 12, issue 9

https://doi.org/10.5194/gmd-12-3889-2019

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

Special issue:

Paleoclimate Modelling Intercomparison Project phase 4 (PMIP4)...

https://doi.org/10.5194/gmd-12-3889-2019

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

Articles | Volume 12, issue 9

Model evaluation paper

|

03 Sep 2019

Model evaluation paper |

| 03 Sep 2019

Paleo calendar-effect adjustments in time-slice and transient climate-model simulations (PaleoCalAdjust v1.0): impact and strategies for data analysis

Patrick J. Bartlein and Sarah L. Shafer

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Final revised paper (published on 03 Sep 2019)
Preprint (discussion started on 05 Dec 2018)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Comments and critical review of Bartlein's and Shafer's calendar adjustment method and bias analysis', Anonymous Referee #1, 04 Jan 2019
RC2: 'Or how to make a complex software for a simple problem', Anonymous Referee #2, 08 Jan 2019
RC3: 'reviewer comment', Anonymous Referee #3, 17 Jan 2019
AC1: 'Authors' comments and responses to referees', Patrick Bartlein, 27 Feb 2019

Peer-review completion

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

AR by Patrick Bartlein on behalf of the Authors (27 Mar 2019) Manuscript

ED: Referee Nomination & Report Request started (17 Apr 2019) by Didier Roche

RR by Anonymous Referee #2 (21 May 2019)

ED: Reconsider after major revisions (21 May 2019) by Didier Roche

AR by Patrick Bartlein on behalf of the Authors (29 Jun 2019) Author's response Manuscript

ED: Publish as is (16 Jul 2019) by Didier Roche

AR by Patrick Bartlein on behalf of the Authors (18 Jul 2019) Manuscript

Post-review adjustments

AA: Author's adjustment | EA: Editor approval

AA by Patrick Bartlein on behalf of the Authors (29 Aug 2019) Author's adjustment Manuscript

EA: Adjustments approved (30 Aug 2019) by Didier Roche

Short summary

One of the consequences of changes in the shape of Earth's orbit over time (in addition to pacing glacial–interglacial variations) is changes in the length of months or seasons. The well-known paleo calendar effect that results can produce patterns in comparisons of present-day and paleoclimate model simulations that could be mistaken for real climate changes. We illustrate the source of those patterns and describe an approach and set of programs for routinely adjusting for the effect.