Articles | Volume 16, issue 4
Clim. Past, 16, 1309–1323, 2020
https://doi.org/10.5194/cp-16-1309-2020
Clim. Past, 16, 1309–1323, 2020
https://doi.org/10.5194/cp-16-1309-2020
Research article
24 Jul 2020
Research article | 24 Jul 2020

Assimilating monthly precipitation data in a paleoclimate data assimilation framework

Veronika Valler et al.

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Cited articles

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. a, b, c
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Chenoweth, M.: The 18th Century Climate of Jamaica Derived from the Journals of Thomas Thistlewood, 1750–1786, 93, American Philosophical Society, available at: https://www.jstor.org/stable/pdf/20020339.pdf (last access: 13 July 2020), 2003. a
Cook, E. R., Anchukaitis, K. J., Buckley, B. M., D'Arrigo, R. D., Jacoby, G. C., and Wright, W. E.: Asian monsoon failure and megadrought during the last millennium, Science, 328, 486–489, https://doi.org/10.1126/science.1185188, 2010a. a
Cook, E. R., Seager, R., Heim Jr., R. R., Vose, R. S., Herweijer, C., and Woodhouse, C.: Megadroughts in North America: Placing IPCC projections of hydroclimatic change in a long-term palaeoclimate context, J. Quaternary Sci., 25, 48–61, https://doi.org/10.1002/jqs.1303, 2010b. a
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Data assimilation is becoming more and more important for past climate reconstructions. The assimilation of monthly resolved precipitation information has not been explored much so far. In this study we analyze the impact of assimilating monthly precipitation amounts and the number of wet days within an existing paleoclimate data assimilation framework. We find increased skill in the reconstruction, suggesting that monthly precipitation can constitute valuable input for future reconstructions.