Common Era sea-level budgets along the U.S. Atlantic coast

Journal: Nature Communications

Published: 2021-03-23

DOI: 10.1038/s41467-021-22079-2

Affiliations: 10

Authors: 11

Go to article

Research Highlight

Melting ice and warming oceans behind rise in sea level on US east coast

© Vicki Jauron, Babylon and Beyond Photography/Moment Open/Getty Images

© Vicki Jauron, Babylon and Beyond Photography/Moment Open/Getty Images

Melting polar ice and thermal expansion of the oceans are having an accelerating impact on rising sea levels along the US east coast, a ‘sea-level budget’ analysis reveals.

Sea-level budgets are used to quantify the effects of different factors on changing sea levels over time, but they have largely been applied to global sea level changes.

A team that included scientists from Nanyang Technological University, Singapore, developed a high-resolution sea-level budget for a 700-kilometre stretch of the US Atlantic coastline over the past 2,000 years to determine what factors were contributing most to sea level change in that area.

They found that the greatest contributions to rising sea levels in the area came from melting ice and seawater expanding as it warms. In contrast, regional and local effects, such as extraction of groundwater causing local subsidence, contributed relatively small amounts to local sea level rise.

Supported content

  1. Nature Communications 12, 1841 (2021). doi: 10.1038/s41467-021-22079-2
Institutions Share
Rutgers University - New Brunswick, United States of America (USA) 0.27
Earth Observatory of Singapore, NTU, Singapore 0.14
National University of Ireland Maynooth (NUI Maynooth), Ireland 0.09
The University of Hong Kong (HKU), China 0.09
Bryn Mawr College, United States of America (USA) 0.09
Durham University, United Kingdom (UK) 0.09
Liverpool Hope University, United Kingdom (UK) 0.09
East Carolina University (ECU), United States of America (USA) 0.09
Nanyang Technological University (NTU), Singapore 0.05