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| Thermal expansion of sea water associated with global warming, Nature |
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Thermal expansion of sea water associated with global warming, Nature
Tuesday, June 26 2007 - Dossier: Algemeen
Wigley, T.M.L. and S.C.B. Raper. 1987. Thermal expansion of sea water associated with global warming. Nature 357: 293-300.
Thermal expansion of sea water associated with global warming
T.M. L. Wigley*+ & S.C.B. Rapert
The relationship between greenhouse-gas forcing, global mean temperature change and sea-level rise due to thermal expansion of the oceans is investigated using upwelling-diffusion and pure diffusion models. The sensitivities of sea-level to short-time scale forcing and deep-water formation rate changes are examined. The greenhouse-gas-induced thermal expansion contribution to sea-level rise between 1880 and 1985 is estimated at 2-5 cm. Projections are made to the year 2025 for different forcing scena rios. For the period 1985-2025 the estimate of greenhouse-gas-induced warming is 0.6-1.0°C. The concomitant oceanic thermal expansion would raise sea level by 4-8 cm.
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