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NASA links port city sea levels to regional ice melt

20 November 2017

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A new NASA tool links changes in sea level in 293 global port cities to specific regions of melting land ice, such as southern Greenland and the Antarctic Peninsula. It is intended to help coastal planners prepare for rising seas in the decades to come.

All coastal cities will see some impacts of global sea level rise. But the new tool shows that, for example, New York City is more strongly affected by melting ice in north-eastern Greenland than in south-western Greenland; while Sydney has a greater risk from the rapidly melting Antarctic Peninsula than from East Antarctica.

Source: NASA

Image credit: NASA/JPL-Caltech/Google - The contribution of melting ice in Greenland to sea level rise in New York City. Red indicates the greatest sea level contribution, blue is the smallest to no contribution. A new NASA tool lets users research the contributions of all regions of global land ice to sea levels in 293 port cities.