RT Journal Article
T1 MioVeg1: A Global Middle Miocene Vegetation Reconstruction for Climate Modeling
A1 Catherine D. Bradshaw, 
A1 Fletcher, Tamara
A1 Reichgelt, Tammo
A1 Akgün, Funda
A1 Cantrill, David J.
A1 Casas Gallego, Manuel
A1 Doláková, Nela
A1 Erdei, Boglárka
A1 Kayseri-Özer, Mine Sezgül
A1 Kováčová, Marianna
AB Climate models require boundary condition information, such as vegetation and soil distributions because they influence the mean state climate, and feedbacks can significantly influence regional climate and climate sensitivity to CO2 forcing. Information about past distributions comes primarily from the paleobotanical record, which is often supplemented by a vegetation model to fill data gaps. For recent past periods such as the Pliocene, a quantitative suitability assessment of these vegetation model simulations is sufficient. However, the Miocene Climate Optimum spanning 16.9–14.7 Ma was the warmest period on Earth over the last ∼25 million years and models struggle to reproduce those conditions for the range of paleogeographies and CO2 concentrations tested, particularly at high latitudes. Here we bring together the Miocene modeling and data communities to update previous vegetation reconstructions used for climate modeling with a new regional approach that relaxes the requirement for a single model simulation to be used, blending instead simulations forced by different paleogeographies and CO2 concentrations. This ensures the simulated vegetation is first, and foremost, consistent with the paleorecord and provides a baseline for future comparisons. The reconstruction shows global increases in forest cover at all latitudes as compared to today and extensive C3 grasslands across the high northern latitudes. Data gaps at high latitudes are filled with vegetation models forced by higher CO2 concentrations than were required at lower latitudes consistent with the inability of current models to simulate Miocene high latitude warmth.
PB American Geophysical Union
YR 2025
FD 2025-11-06
LK https://hdl.handle.net/20.500.14352/126426
UL https://hdl.handle.net/20.500.14352/126426
LA eng
NO Bradshaw, C. D., Fletcher, T., Reichgelt, T., Akgün, F., Cantrill, D. J., Casas‐Gallego, M., Doláková, N., Erdei, B., Kayseri‐Özer, M. S., Kováčová, M., Ochoa, D., Pound, M., Utescher, T., Zhao, J., Sepulchre, P., Feakins, S. J., Ivanov, D., Li, S., Miao, Y., … Burls, N. (2025). Mioveg1: A global middle miocene vegetation reconstruction for climate modeling. Paleoceanography and Paleoclimatology, 40(11), e2025PA005213. https://doi.org/10.1029/2025PA005213
NO NERC
NO European Union's Horizon 2020
NO Royal Society
NO TUBITAK
NO Slovak Research and Development Agency
NO Scientific Agency of the Ministry of Education, Research, Development and Youth of the Slovak Republic
NO National Science Foundation
DS Docta Complutense
RD 21 mar 2026