Articles | Volume 22, issue 1
https://doi.org/10.5194/cp-22-73-2026
https://doi.org/10.5194/cp-22-73-2026
Research article
 | 
14 Jan 2026
Research article |  | 14 Jan 2026

Data-model comparisons of the tropical hydroclimate response to the 8.2 ka Event with an isotope-enabled climate model

Andrea L. Moore, Alyssa R. Atwood, and Raquel E. Pauly

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Cited articles

Aguiar, W., Prado, L. F., Wainer, I., Liu, Z., Montenegro, A., Meissner, K. J., and Mata, M. M.: Freshwater forcing control on early-Holocene South American monsoon, Quaternary Science Reviews, 245, 106498, https://doi.org/10.1016/j.quascirev.2020.106498, 2020. 
Aguiar, W., Meissner, K. J., Montenegro, A., Prado, L., Wainer, I., Carlson, A. E., and Mata, M. M.: Magnitude of the 8.2 ka event freshwater forcing based on stable isotope modelling and comparison to future Greenland melting, Scientific Reports, 11, 5473, https://doi.org/10.1038/s41598-021-84709-5, 2021. 
Alley, R. B., Mayewski, P. A., Sowers, T., Stuiver, M., Taylor, K. C., and Clark, P. U.: Holocene climatic instability: A prominent, widespread event 8200 yr ago, Geology, 25, 483–486, https://doi.org/10.1130/0091-7613(1997)025<0483:HCIAPW>2.3.CO;2, 1997. 
Arbuszewski, J. A., deMenocal, P. B., Cléroux, C., Bradtmiller, L., and Mix, A.: Meridional shifts of the Atlantic intertropical convergence zone since the Last Glacial Maximum, Nature Geosci., 6, 959–962, https://doi.org/10.1038/ngeo1961, 2013. 
Atwood, A. R., Donohoe, A., Battisti, D. S., Liu, X., and Pausata, F. S. R.: Robust Longitudinally Variable Responses of the ITCZ to a Myriad of Climate Forcings, Geophysical Research Letters, 47, e2020GL088833, https://doi.org/10.1029/2020GL088833, 2020. 
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Short summary
Around 8200 years ago, Earth experienced an abrupt climate event when melting glaciers disrupted Atlantic Ocean circulation, triggering rapid global changes. Using statistical methods that account for dating uncertainties in paleoclimate records, we find tropical rainfall patterns shifted dramatically for 150 years. The regional complexity of these changes, verified by model simulations, provides insights for understanding how similar ocean changes could impact rainfall in our warming world.
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