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|a Contribution of ice sheet and mountain glacier melt to recent sea level rise |h [electronic resource]. |
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|a [S.l.] : |b Macmillan Publishers Limited, |c 2013. |
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|a Nature Geoscience Volume 6. |
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|a Please contact the owning institution for licensing and permissions. It is the user's responsibility to ensure use does not violate any third party rights. |
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|a Changes in global mean sea level primarily reflect the sum of
three contributions: water mass changes in the oceans, water
density changes, and variations in the volume of the ocean
basins. Satellite altimetry data1–4 suggest that sea level rose by
about 2:39 [plus or minus]0:48mmyrô€€€1 between 2005 and 2011. However,
previous estimates5–9 of sea level rise from density and ocean
mass changeswere lower than the altimeter data indicate. Here
we show that the gap in the sea level budget disappears when
we combine gravity data from the GRACE (Gravity Recovery
and Climate Experiment) satellite mission and temperature
and salinity observations from the Argo programme collected
between 2005 and 2011. The Argo data indicate a densitydriven
sea level rise of 0:60[plus or minus]0:27mmyr-1 throughout this
period. To estimate ocean mass change from the gravity data,
we developed a forward modelling technique that reduces
the bleeding of terrestrial signals into the ocean data. Our
reassessment suggests an ocean mass contribution of 1:80[plus or minus]
0:47mmyr-1, for a total sea level rise of 2:40[plus or minus]0:54mmyr-1,
in agreement with the altimeter-based estimates. On the basis
of the GRACE data, we conclude that most of the change in
ocean mass is caused by the melting of polar ice sheets and
mountain glaciers. This contribution of ice melt is larger than
previous estimates10, but agrees with reports11–13 of accelerated
ice melt in recent years. |
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|a Electronic reproduction. |c Florida International University, |d 2015. |f (dpSobek) |n Mode of access: World Wide Web. |n System requirements: Internet connectivity; Web browser software. |
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|t Contribution of ice sheet and mountain glacier melt to recent sea level rise |
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|a dpSobek |c Sea Level Rise |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15062018/00001 |y Click here for full text |
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|3 Host material |u http://www.nature.com/ngeo/journal/v6/n7/full/ngeo1829.html |y Contribution of ice sheet and mountain glacier melt to recent sea level rise |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/06/20/18/00001/FI15062018thm.jpg |
