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Climate of the Past An interactive open-access journal of the European Geosciences Union
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CP | Articles | Volume 14, issue 10
Clim. Past, 14, 1441–1462, 2018
https://doi.org/10.5194/cp-14-1441-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Clim. Past, 14, 1441–1462, 2018
https://doi.org/10.5194/cp-14-1441-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 18 Oct 2018

Research article | 18 Oct 2018

The role of regional feedbacks in glacial inception on Baffin Island: the interaction of ice flow and meteorology

Leah Birch et al.

Related subject area

Subject: Climate Modelling | Archive: Modelling only | Timescale: Pleistocene
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Cited articles

Abe-Ouchi, A., Segawa, T., and Saito, F.: Climatic Conditions for modelling the Northern Hemisphere ice sheets throughout the ice age cycle, Clim. Past, 3, 423–438, https://doi.org/10.5194/cp-3-423-2007, 2007. a
Abe-Ouchi, A., Saito, F., Kawamura, K., Raymo, M. E., Okuno, J., Takahashi, K., and Blatter, H.: Insolation-driven 100,000-year glacial cycles and hysteresis of ice-sheet volume, Nature, 500, 190–193, 2013. a
Andrews, J. and Barry, R.: Glacial inception and disintegration during the last glaciation, Ann. Rev. Earth Pl. Sc., 6, 205–228, 1978. a
Andrews, J. and Mahaffy, M.: Growth rate of the Laurentide Ice Sheet and sea level lowering (with emphasis on the 115,000 BP sea level low), Quaternary Res., 6, 167–183, 1976. a, b
Andrews, J. and Miller, G.: Quarternary history of northern Cumberland peninsula, Baffin Island, NWT, Canada: Part IV: Maps of the present glaciation limits and lowest equilibrium line altitude for north and south Baffin Island, Arctic and Alpine Research, 45–59, 1972. a
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Short summary
We investigate the regional dynamics at the beginning of the last ice age, using a nested configuration of the Weather Research and Forecasting (WRF) model with a simple ice flow model. We find that ice sheet height causes a negative feedback on continued ice growth by interacting with the atmospheric circulation, causing warming on Baffin Island, and inhibiting the initiation of the last ice age. We conclude that processes at larger scales are needed to overcome the regional warming effect.
We investigate the regional dynamics at the beginning of the last ice age, using a nested...
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