Articles | Volume 16, issue 19
https://doi.org/10.5194/gmd-16-5653-2023
https://doi.org/10.5194/gmd-16-5653-2023
Methods for assessment of models
 | 
12 Oct 2023
Methods for assessment of models |  | 12 Oct 2023

DASH: a MATLAB toolbox for paleoclimate data assimilation

Jonathan King, Jessica Tierney, Matthew Osman, Emily J. Judd, and Kevin J. Anchukaitis

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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, 13, 545–557, https://doi.org/10.5194/cp-13-545-2017, 2017. a, b
Alley, R. B.: Palaeoclimatic insights into future climate challenges, Philos. T. Roy. Soc. Lond. A-Math. 361, 1831–1849, 2003. a
Amrhein, D. E., Wunsch, C., Marchal, O., and Forget, G.: A global glacial ocean state estimate constrained by upper-ocean temperature proxies, J. Climate, 31, 8059–8079, 2018. a, b
Amrhein, D. E., Hakim, G. J., and Parsons, L. A.: Quantifying structural uncertainty in paleoclimate data assimilation with an application to the last millennium, Geophys. Res. Lett., 47, e2020GL090485, https://doi.org/10.1029/2020GL090485, 2020. a
Anchukaitis, K., Wilson, R., Briffa, K., Büntgen, U., Cook, E., D'Arrigo, R., Davi, N., Esper, J., Frank, D., Gunnarson, B., Hegerl, G., Helama, S., Klesse, S., Krusic, P., Linderholm, H., Myglan, V., Osborn, T., Zhang, P., Rydval, M., Schneider, L., Schurer, A., Wiles, G., and Zorita, E.: Last millennium Northern Hemisphere summer temperatures from tree rings: Part II, spatially resolved reconstructions, Quaternary Sci. Rev., 163, 1–22, 2017. a, b
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Short summary
Paleoclimate data assimilation is a useful method that allows researchers to combine climate models with natural archives of past climates. However, it can be difficult to implement in practice. To facilitate this method, we present DASH, a MATLAB toolbox. The toolbox provides routines that implement common steps of paleoclimate data assimilation, and it can be used to implement assimilations for a wide variety of time periods, spatial regions, data networks, and analytical algorithms.
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