A multi-model assessment of the early last deglaciation  (PMIP4 LDv1): a meltwater perspective

Snoll, Brooke; Ivanovic, Ruza; Gregoire, Lauren; Sherriff-Tadano, Sam; Menviel, Laurie; Obase, Takashi; Abe-Ouchi, Ayako; Bouttes, Nathaelle; He, Chengfei; He, Feng; Kapsch, Marie; Mikolajewicz, Uwe; Muglia, Juan; Valdes, Paul

doi:https://doi.org/10.5194/cp-20-789-2024

Articles | Volume 20, issue 4

https://doi.org/10.5194/cp-20-789-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Paleoclimate Modelling Intercomparison Project phase 4 (PMIP4)...

https://doi.org/10.5194/cp-20-789-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 4

Research article

|

05 Apr 2024

Research article |

| 05 Apr 2024

A multi-model assessment of the early last deglaciation (PMIP4 LDv1): a meltwater perspective

Brooke Snoll, Ruza Ivanovic, Lauren Gregoire, Sam Sherriff-Tadano, Laurie Menviel, Takashi Obase, Ayako Abe-Ouchi, Nathaelle Bouttes, Chengfei He, Feng He, Marie Kapsch, Uwe Mikolajewicz, Juan Muglia, and Paul Valdes

Supplement

https://doi.org/10.5194/cp-20-789-2024-supplement

Data sets

Transient simulations of the last deglaciation (PMIP LDv1) Brooke Snoll et al. https://doi.org/10.5518/1398

Transient deglacial simulation performed with LOVECLIM with ICE5G forcing Laurie Menviel https://doi.org/10.26190/unsworks/25467

iTraCE Otto-Bliesner et al. https://doi.org/10.26024/b290-an76

PalMod2 MPI-M MPI-ESM1-2-CR Transient Simulations of the Last Deglaciation with prescribed ice sheets from ICE-6G reconstructions (r1i1p1f1) Mikolajewicz, Uwe; Kapsch, Marie-Luise; Gayler, Veronika; Meccia, Virna Loana; Riddick, Thomas; Ziemen, Florian Andreas; Schannwell, Clemens https://doi.org/10.26050/WDCC/PMMXMCRTDIP111

PalMod2 MPI-M MPI-ESM1-2-CR Transient Simulations of the Last Deglaciation with prescribed ice sheets from ICE-6G reconstructions (r1i1p2f2) Uwe Mikolajewicz et al. https://doi.org/10.26050/WDCC/PMMXMCRTDIP122

PalMod2 MPI-M MPI-ESM1-2-CR Transient Simulations of the Last Deglaciation with prescribed ice sheets from ICE-6G reconstructions (r1i1p3f2) Uwe Mikolajewicz et al. https://doi.org/10.26050/WDCC/PMMXMCRTDIP132

PalMod2 MPI-M MPI-ESM1-2-CR Transient Simulations of the Last Deglaciation with prescribed ice sheets from GLAC-1D reconstructions (r1i1p1f1) Uwe Mikolajewicz et al. https://doi.org/10.26050/WDCC/PMMXMCRTDGP111

PalMod2 MPI-M MPI-ESM1-2-CR Transient Simulations of the Last Deglaciation with prescribed ice sheets from GLAC-1D reconstructions (r1i1p2f2) Uwe Mikolajewicz et al. https://doi.org/10.26050/WDCC/PMMXMCRTDGP122

PalMod2 MPI-M MPI-ESM1-2-CR Transient Simulations of the Last Deglaciation with prescribed ice sheets from GLAC-1D reconstructions (r1i1p3f2) Uwe Mikolajewicz et al. https://doi.org/10.26050/WDCC/PMMXMCRTDGP132

Model code and software

Snoll et al. 2024: Early last deglaciation MIP analysis code Brooke Snoll https://doi.org/10.5281/zenodo.10877424

Short summary

Geological records show rapid climate change throughout the recent deglaciation. The drivers of these changes are still misunderstood but are often attributed to shifts in the Atlantic Ocean circulation from meltwater input. A cumulative effort to understand these processes prompted numerous simulations of this period. We use these to explain the chain of events and our collective ability to simulate them. The results demonstrate the importance of the meltwater amount used in the simulation.