Using a process-based dendroclimatic proxy system model in a data assimilation framework: a test case in the Southern Hemisphere over the past centuries

Rezsöhazy, Jeanne; Dalaiden, Quentin; Klein, François; Goosse, Hugues; Guiot, Joël

doi:https://doi.org/10.5194/cp-18-2093-2022

Articles | Volume 18, issue 9

https://doi.org/10.5194/cp-18-2093-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/cp-18-2093-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 9

Research article

|

13 Sep 2022

Research article |

| 13 Sep 2022

Using a process-based dendroclimatic proxy system model in a data assimilation framework: a test case in the Southern Hemisphere over the past centuries

Jeanne Rezsöhazy, Quentin Dalaiden, François Klein, Hugues Goosse, and Joël Guiot

Supplement

https://doi.org/10.5194/cp-18-2093-2022-supplement

Data sets

Law Dome Ice Core 2000-Year CO2, CH4, N2O and d13C-CO2 Mauro Rubino, David Etheridge, David Thornton, Colin Allison, Roger Francey, Ray Langenfelds, Paul Steele, Cathy Trudinger, Darren Spencer, Mark Curran, Tas Van Ommen, and Andrew Smith https://doi.org/10.25919/5bfe29ff807fb

Revised records of atmospheric trace gases CO2, CH4, N2O and δ13C-CO2 over the last 2000 years from Law Dome, Antarctica Mauro Rubino, David M. Etheridge, David P. Thornton, Russell Howden, Colin E. Allison, Roger J. Francey, Ray L. Langenfelds, L. Paul Steele, Cathy M. Trudinger, Darren A. Spencer, Mark A. J. Curran, Tas D. van Ommen, and Andrew M. Smith https://doi.org/10.5194/essd-11-473-2019

Development of a 50-year high-resolution global dataset of meteorological forcings for land surface modeling Justin Sheffield, Gopi Goteti, and Eric F. Wood https://doi.org/10.1175/JCLI3790.1

Volcanic Eruption Signatures in the Isotope-Enabled Last Millennium Ensemble ( https://www.earthsystemgrid.org/dataset/ucar.cgd.ccsm4.CESM_CAM5_LME.html) S. Stevenson, B. L. Otto-Bliesner, E. C. Brady, J. Nusbaumer, C. Tabor, R. Tomas, D. C. Noone, and Z. Liu https://doi.org/10.1029/2019PA003625

The Connected Isotopic Water Cycle in the Community Earth System Model Version 1 (https://www.earthsystemgrid.org/dataset/ucar.cgd.ccsm4.CESM_CAM5_LME.html) E. Brady, S. Stevenson, D. Bailey, Z. Liu, D. Noone, J. Nusbaumer, B. L. Otto-Bliesner, C. Tabor, R. Tomas, T. Wong, J. Zhang, and J. Zhu https://doi.org/10.1029/2019MS001663

Forcings in GISS Climate Model M. Sato and G. Schmidt https://data.giss.nasa.gov/modelforce/ghgases/

Modelling the climate and surface mass balance of polar ice sheets using RACMO2 – Part 2: Antarctica (1979–2016) Jan Melchior van Wessem, Willem Jan van de Berg, Brice P. Y. Noël, Erik van Meijgaard, Charles Amory, Gerit Birnbaum, Constantijn L. Jakobs, Konstantin Krüger, Jan T. M. Lenaerts, Stef Lhermitte, Stefan R. M. Ligtenberg, Brooke Medley, Carleen H. Reijmer, Kristof van Tricht, Luke D. Trusel, Lambertus H. van Ulft, Bert Wouters, Jan Wuite, and Michiel R. van den Broeke https://doi.org/10.5194/tc-12-1479-2018

A global multiproxy database for temperature reconstructions of the Common Era Hali Kilbourne, Zicheng Yu, Raphael Neukom, et al. https://doi.org/10.6084/m9.figshare.c.3285353.v2

Short summary

Using statistical tree-growth proxy system models in the data assimilation framework may have limitations. In this study, we successfully incorporate the process-based dendroclimatic model MAIDEN into a data assimilation procedure to robustly compare the outputs of an Earth system model with tree-ring width observations. Important steps are made to demonstrate that using MAIDEN as a proxy system model is a promising way to improve large-scale climate reconstructions with data assimilation.