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Global Ocean Warming and Sea Level Rise

Dean Roemmich,J. K. Willis,John Gilson,Detlef Stammer,Armin Koehl,T. Yemenis+10 more-2006-01-01-Digital Commons - University of South Florida (University of South Florida)
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TL;DRAbstract

The ocean observing system has progressed considerably over the past 50 years, enabling more accurate estimation of global ocean heat content and its impact on sea level (thermosteric sea level). For the entire 50-year record, estimates of global thermosteric sea level rise are about 0.4 mm/yr, much less than the total sea level rise of 1.8 mm/yr for the same period. However, this estimated 50-year heating rate may be biased low due to undersampling of the oceans, particularly in the Southern Hemisphere during the early decades. For the period 1993 – 2003, with high precision satellite altimetry and a quasi-global upper ocean thermal network, thermosteric sea level rise was about 1.6 mm/yr for the layer 0-750 m, out of a total sea level rise of 2.8 mm/yr. Considerable regional and interannual variability are evident. The large increase in the estimated heating rate relative to the earlier period may have been due partly to decadal variability and partly to improved global coverage by t

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The ocean observing system has progressed considerably over the past 50 years, enabling more accurate estimation of global ocean heat content and its impact on sea level (thermosteric sea level). For the entire 50-year record, estimates of global thermosteric sea level rise are about 0.4 mm/yr, much less than the total sea level rise of 1.8 mm/yr for the same period. However, this estimated 50-year heating rate may be biased low due to undersampling of the oceans, particularly in the Southern Hemisphere during the early decades. For the period 1993 – 2003, with high precision satellite altimetry and a quasi-global upper ocean thermal network, thermosteric sea level rise was about 1.6 mm/yr for the layer 0-750 m, out of a total sea level rise of 2.8 mm/yr. Considerable regional and interannual variability are evident. The large increase in the estimated heating rate relative to the earlier period may have been due partly to decadal variability and partly to improved global coverage by t

Keywords

ClimatologyEffects of global warming on oceansGlobal warmingEnvironmental scienceOceanographySea level riseClimate changeMeteorology

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