Tag Archives: Antarctic Bottom Water

Understanding Sea Level Rise, p4: ice sheet dynamics and (13) melting feedbacks – a background to 21st century SLR acceleration

In 2016 two influential new publications raised the possibility of a rapid acceleration of sea level rise in the 21st century – to ±2 metres (DeConto & Pollard) or more (2-5m, Hansen et al). In this background article we take … Continue reading →

Amount of deep cold Antarctic bottom water decreasing over last decades

Antarctic bottom water

A layer of Antarctic Bottom Water colder than 0ºC (Credit: NOAA)

Scientists have found a large reduction in the amount of the coldest deep ocean water, called Antarctic Bottom Water, all around the Southern Ocean using data collected from 1980 to 2011.

These findings, in a study now online, will likely stimulate new research on the causes of this change.

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