What Would Happen if the Earth's Rotation Stopped?

Scientists used geographic modeling software to come up with a realistic answer to an unrealistic question: what would happen if the earth ceased its rotation?

If earth ceased rotating about its axis but continued revolving around the sun and its axis of rotation maintained the same inclination, the length of a year would remain the same, but a day would last as long as a year. In this fictitious scenario, the sequential disappearance of centrifugal force would cause a catastrophic change in climate and disastrous geologic adjustments (expressed as devastating earthquakes) to the transforming equipotential gravitational state.

The lack of the centrifugal effect would result in the gravity of the earth being the only significant force controlling the extent of the oceans. Prominent celestial bodies such as the moon and sun would also play a role, but because of their distance from the earth, their impact on the extent of global oceans would be negligible.

If the earth's gravity alone was responsible for creating a new geography, the huge bulge of oceanic water—which is now about 8 km high at the equator—would migrate to where a stationary earth's gravity would be the strongest. This bulge is attributed to the centrifugal effect of earth's spinning with a linear speed of 1,667 km/hour at the equator. The existing equatorial water bulge also inflates the ellipsoidal shape of the globe itself.

Link via Nerdcore | Photo: NASA

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I think that probably the most dangerous thing that could happen in such a scenario would be the "death" of the Earth's magnetic field, instead of a huge bulge of water. In fact our magnetic field is generated by the rotating magma inside the Earth, and if Earth stops rotating, so will do the magma: goodbye Field! That means no protection against the cosmic rays, that will fry us all!
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I'm guessing (because I don't think it was mentioned in the original article) the gravitational effect of the moon was ignored? Although it'd probably only be a small counter-acting.
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