Thursday, 23 July 2015

Sea level rise - No anomaly

Climate scientists had been concerned by an apparent slowing of sea-level rise over the last decade despite the increasing volume of run-off from glaciers. A recent paper in Nature Climate Change (DOI: 10.1038/nclimate2635) resolves the anomaly.

The authors showed that the rate of sea-level rise for 1993 to 2004 had been overestimated by about 20% due to inadequate calibration of the satellite-mounted altimeters. The new value, 2.6 to 2.9 mm/year, implies an acceleration in the rate of sea-level rise since 2004.

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