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Arctic Shipping Forecast

MITgcm underpins a new Chinese Arctic sea-ice prediction system.

The Thickness of Winter Water

This month we turn our attention to scientists working at NASA JPL who have been using MITgcm to examine what sets the thickness of so-called “Winter Water” in a region of the Antarctic off shore from the Pine Island Glacier.

Getting to the Bottom of Greenland’s Glaciers

MIT postdoc Roberta Sciascia has been using MITgcm to explore the variations in submarine melt rate of Helheim Glacier induced by glacier and intermediary circulations.

Snowballs in Summer

Cool off with a study from Ashkenazy, Gildor, Losch and Tziperman who use MITgcm to explore the ocean in models of snowball earth.

Sea – Ice Interplay

In a novel approach, MITgcmers Ian Fenty and Patrick Heimbach use optimal state and parameter estimation to improve the sea-ice simulations.

MITgcm on Ice

In a recent paper in the Journal of Physical Oceanography, An Nguyen (MIT) and co-authors Ronald Kwok (JPL) and Dimitris Menemenlis (JPL) report on work using MITgcm to better understand the origin and character of  the western arctic, upper halocline.

Under the Ice

In a new paper published in the Annals of Glaciology, long-time MITgcm users Patrick Heimbach and Martic Losch investigate the sensitivity of sub-ice-shelf melt rates under the Pine Island Ice Shelf, West Antarctica, to changes in the oceanic state.

北极海冰数值预报的初步研究!!!MITgcm基于海冰!海洋耦合模式!”# $

Bathymetry and boundaries of the Arctic domain in the model - source Yang et al., 2011.This month we shine light on recently published work by a team of Chinese investigators who have been using MITgcm to study Arctic sea ice.

Arctic Carbon Cycle Modeling

Arctic Biogeochemical Model - Change in Surface Net Community Production, year-on-year between 2006 and 2007 using MITgcm. Motivated by observations indicating rapidly falling annual sea-ice minima, Manfredi Manizza and co-workers have been using an Arctic configuration of MITgcm to explore the Arctic Ocean Carbon Cycle.

Climate Determinism Revisited

Stable states schematic In a first for models simulating the 3d dynamics of both ocean and atmosphere, the MITgcm climate model has been found to exhibit three different stable states for exactly the same set of parameters and external forcings, suggesting that climates may exhibit multiple equilibria even in the presence of a vigorous internal variability sustained by weather systems and ocean-atmosphere-sea ice interactions…