Preprints
https://doi.org/10.5194/egusphere-2022-582
https://doi.org/10.5194/egusphere-2022-582
 
15 Aug 2022
15 Aug 2022

Mid-Holocene reinforcement of North Atlantic atmospheric circulation variability from a western Baltic lake sediment record

Markus Czymzik1, Rik Tjallingii2, Birgit Plessen2, Peter Feldens1, Martin Theuerkauf3, Matthias Moros1, Markus J. Schwab2, Carla K. M. Nantke1, Silvia Pinkerneil2, Achim Brauer2,4, and Helge W. Arz1 Markus Czymzik et al.
  • 1Leibniz Institute for Baltic Sea Research Warnemünde (IOW) - Marine Geology, Rostock, Germany
  • 2GFZ German Research Centre for Geosciences - Climate Dynamics and Landscape Evolution, Potsdam, Germany
  • 3University of Greifswald - Institute of Botany and Landscape Ecology, Greifswald, Germany
  • 4University of Potsdam - Institute of Geosciences, Potsdam, Germany

Abstract. Knowledge about timing, amplitude and spatial gradients of Holocene environmental variability in the Circum-Baltic region is key to understand its responses to ongoing climate change. Based on a multi-dating and proxy approach, we reconstruct changes in productivity from TOC contents in sediments of Lake Kälksjön (KKJ) in west-central Sweden spanning the last 9612 (+255/-144) years. An exception is the period from AD 1878 until today, in which sedimentation was dominated by anthropogenic lake level lowering and land use. In-lake productivity was higher during periods of warmer winters with shortened ice cover and prolonged growing seasons. A multi-millennial increase in productivity throughout the last ~9600 years is associated with progressively warmer winters in north-western Europe, likely triggered by the coinciding increase in Northern Hemisphere winter insolation. Decadal to centennial periods of higher productivity in KKJ correspond to warmer winters during a more positive North Atlantic Oscillation (NAO) polarity, as reconstructed for the last 5200 years. In consequence, we assume our decadal to centennial productivity record from KKJ sediments for the complete ~9600 years to provide a qualitative record of NAO polarity. A shift towards higher productivity variability at ~5450 cal. a BP is hypothesized to reflect a reinforcement of NAO-like atmospheric circulation variability, possibly driven by more vigorous changes in North Atlantic deep water formation.

Journal article(s) based on this preprint

26 Jan 2023
Mid-Holocene reinforcement of North Atlantic atmospheric circulation variability from a western Baltic lake sediment record
Markus Czymzik, Rik Tjallingii, Birgit Plessen, Peter Feldens, Martin Theuerkauf, Matthias Moros, Markus J. Schwab, Carla K. M. Nantke, Silvia Pinkerneil, Achim Brauer, and Helge W. Arz
Clim. Past, 19, 233–248, https://doi.org/10.5194/cp-19-233-2023,https://doi.org/10.5194/cp-19-233-2023, 2023
Short summary

Markus Czymzik et al.

Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2022-582', Anonymous Referee #1, 18 Sep 2022
    • EC1: 'Reply on RC1', Denis-Didier Rousseau, 18 Sep 2022
    • AC2: 'Reply on RC1', Markus Czymzik, 02 Nov 2022
  • RC2: 'Comment on egusphere-2022-582', Anonymous Referee #2, 20 Sep 2022
    • EC2: 'Reply on RC2', Denis-Didier Rousseau, 07 Oct 2022
    • AC3: 'Reply on RC2', Markus Czymzik, 02 Nov 2022
  • AC1: 'Comment on egusphere-2022-582', Markus Czymzik, 10 Oct 2022

Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2022-582', Anonymous Referee #1, 18 Sep 2022
    • EC1: 'Reply on RC1', Denis-Didier Rousseau, 18 Sep 2022
    • AC2: 'Reply on RC1', Markus Czymzik, 02 Nov 2022
  • RC2: 'Comment on egusphere-2022-582', Anonymous Referee #2, 20 Sep 2022
    • EC2: 'Reply on RC2', Denis-Didier Rousseau, 07 Oct 2022
    • AC3: 'Reply on RC2', Markus Czymzik, 02 Nov 2022
  • AC1: 'Comment on egusphere-2022-582', Markus Czymzik, 10 Oct 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (04 Nov 2022) by Denis-Didier Rousseau
AR by Markus Czymzik on behalf of the Authors (08 Nov 2022)  Author's response    Author's tracked changes    Manuscript
ED: Referee Nomination & Report Request started (09 Nov 2022) by Denis-Didier Rousseau
RR by Stefan Wastegård (30 Nov 2022)
RR by Francois Lapointe (05 Dec 2022)
ED: Publish subject to technical corrections (06 Dec 2022) by Denis-Didier Rousseau

Post-review adjustments

AA: Author's adjustment | EA: Editor approval
AA by Markus Czymzik on behalf of the Authors (23 Jan 2023)   Author's adjustment   Manuscript
EA: Adjustments approved (23 Jan 2023) by Denis-Didier Rousseau

Journal article(s) based on this preprint

26 Jan 2023
Mid-Holocene reinforcement of North Atlantic atmospheric circulation variability from a western Baltic lake sediment record
Markus Czymzik, Rik Tjallingii, Birgit Plessen, Peter Feldens, Martin Theuerkauf, Matthias Moros, Markus J. Schwab, Carla K. M. Nantke, Silvia Pinkerneil, Achim Brauer, and Helge W. Arz
Clim. Past, 19, 233–248, https://doi.org/10.5194/cp-19-233-2023,https://doi.org/10.5194/cp-19-233-2023, 2023
Short summary

Markus Czymzik et al.

Markus Czymzik et al.

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The requested preprint has a corresponding peer-reviewed final revised paper. You are encouraged to refer to the final revised version.

Short summary
Productivity increases in Lake Kälksjön sediments are likely driven by the progressive millennial-scale winter warming in north-western Europe, following the increasing Northern Hemisphere winter insolation, and decadal to centennial periods of a more positive NAO polarity. Strengthened productivity variability since ~5450 cal. a BP is hypothesized to reflect a reinforcement of NAO-like atmospheric circulation.