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|a Seasonal variations in sea level induced by continental water mass |h [electronic resource] |b first results from GRACE. |
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|a Geophysical Research Letters. |
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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 Variations in the Earth’s water cycle are commonly quantified by their effect
on global mean sea-level. However, the interaction between passive adjustment
of the ocean to changes in gravitational attraction due to mass redistribution,
the related deformation of the solid Earth and disturbances in
the Earth’s rotation vector will yield a distribution that is more complicated
than a uniform rise or fall of the ocean’s surface.
In this study, we present the first estimates of seasonal changes in passive
sea-level (which we define as the height difference between the sea surface
at rest and ocean floor, excluding steric and dynamical effects) based on direct
observations of surface mass redistribution, made by the Gravity Recovery
and Climate Experiment (GRACE) between 2003 and 2010. We show
that this ”selfgravitation-effect” causes seasonal variations of the sea-level
of up to 1 cm – comparable to the amplitude of the long-period tides – and
that inclusion in numerical ocean models results in a better agreement between
observed and modelled ocean bottom pressure variations, particularly
in coastal zones. |
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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 Seasonal variations in sea level induced by continental water mass |
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|a dpSobek |c Sea Level Rise |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15060910/00001 |y Click here for full text |
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|3 Host material |u http://onlinelibrary.wiley.com/doi/10.1029/2010GL046128/full |y Seasonal variations in sea level induced by continental water mass |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/06/09/10/00001/Wouters et al_2011_Seasonal variations in sea level induced by continental water massthm.jpg |
