Articles | Volume 18, issue 9
Clim. Past, 18, 2093–2115, 2022
Clim. Past, 18, 2093–2115, 2022
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 et al.

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

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

Development of a 50-year high-resolution global dataset of meteorological forcings for land surface modeling Justin Sheffield, Gopi Goteti, and Eric F. Wood

Volcanic Eruption Signatures in the Isotope-Enabled Last Millennium Ensemble ( S. Stevenson, B. L. Otto-Bliesner, E. C. Brady, J. Nusbaumer, C. Tabor, R. Tomas, D. C. Noone, and Z. Liu

The Connected Isotopic Water Cycle in the Community Earth System Model Version 1 ( 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

Forcings in GISS Climate Model M. Sato and G. Schmidt

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

A global multiproxy database for temperature reconstructions of the Common Era Hali Kilbourne, Zicheng Yu, Raphael Neukom, et al.

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.