Articles | Volume 13, issue 4
https://doi.org/10.5194/cp-13-379-2017
https://doi.org/10.5194/cp-13-379-2017
Research article
 | 
20 Apr 2017
Research article |  | 20 Apr 2017

Development and evaluation of a system of proxy data assimilation for paleoclimate reconstruction

Atsushi Okazaki and Kei Yoshimura

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Acevedo, W., Fallah, B., Reich, S., and Cubasch, U.: Assimilation of Pseudo-Tree-Ring-Width observations into an Atmospheric General Circulation Model, Clim. Past Discuss., https://doi.org/10.5194/cp-2016-92, in review, 2016b.
Annan, J. D. and Hargreaves, J. C.: Identification of climatic state with limited proxy data, Clim. Past, 8, 1141–1151, https://doi.org/10.5194/cp-8-1141-2012, 2012.
Asami, R., Yamada, T., Iryu, Y., Meyer, C. P., Quinn, T. M., and Paulay, G.: Carbon and oxygen isotopic composition of a Guam coral and their relationships to environmental variables in the western Pacific, Palaeogeogr. Palaeocl., 212, 1–22, 2004.
Bhend, J., Franke, J., Folini, D., Wild, M., and Brönnimann, S.: An ensemble-based approach to climate reconstructions, Clim. Past, 8, 963–976, https://doi.org/10.5194/cp-8-963-2012, 2012.
Brohan, P., Kennedy, J. J., Harris, I., Tett, S. F. B., and Jones, P. D., Uncertainty estimates in regional and global observed temperature changes: A new data asset from 1850, J. Geophys. Res., 111, D12106, https://doi.org/10.1029/2005JD006548, 2006.
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Short summary
Data assimilation has been successfully applied in the field of paleoclimatology to reconstruct past climate. However, data reconstructed from proxies have been assimilated, as opposed to the actual proxy values, which prevented full utilization of the information recorded in the proxies. This study propose a new data assimilation system in which actual proxy data are directly assimilated.