Rumi Ohgaito

TL;DR: In this article, a comparison of climate model simulations available from the PMIP1, PMIP2 and CMIP-AR4 intercomparison projects for past and future climate change simulations are examined in terms of polar temperature changes in comparison to global temperature changes and with respect to pre-industrial reference simulations.

TL;DR: The MIROC-ES2L model as mentioned in this paper uses a state-of-the-art climate model as the physical core and embeds a terrestrial biogeochemical component with explicit carbon-nitrogen interaction to account for soil nutrient control and plant growth.

TL;DR: In this paper, the authors analyzed the Southern Hemisphere westerlies during the last glacial maximum (LGM) using four coupled ocean-atmosphere simulations carried out by the Palaeoclimate Modelling Intercomparison Project Phase 2 (PMIP2).

TL;DR: In this paper, the authors compare an ensemble constituted by 11 such simulations run with 6 different climate models, and find that common features in the model responses to hosing are the cooling over the North Atlantic, extending along the sub-tropical gyre in the tropical North Atlantic and the southward shift of the Atlantic ITCZ and the weakening of the African and Indian monsoons.

TL;DR: Numerical experiments showed that climate becomes most unstable in intermediate glacial conditions associated with large changes in sea ice and the Atlantic Meridional Overturning Circulation, and model sensitivity experiments suggest that the prerequisite for the most frequent climate instability with bipolar seesaw pattern during the late Pleistocene era is associated with reduced atmospheric CO2 concentration via global cooling and sea ice formation in the North Atlantic.