Artículos de revistas
A space domain energetics study for CO2 increasing based on SRES-A2 emission scenario
Fecha
2013Registro en:
Advances in Meteorology, New York, v. 2013, p. ID697105/1-ID697105/19, 2013
10.1155/2013/697105
Autor
Veiga, José Augusto P.
Ambrizzi, Tercio
Pezza, Alexandre B.
Institución
Resumen
Thiswork presents a detailed investigation of the changes in the global pattern of energetics under a prescribed temporal evolution of
CO2 concentration as proposed by the A2 IPCC forcing scenario (SRES-A2) using a combination of reanalysis and climate models.
A validation climatology is computed using the classic Lorenz energetic formulation, with generation and dissipation components
estimated as residuals.The results show a good agreement overall betweenmodels and reanalysis for the present day climate, noting
that the models generally give more zonal energy and less eddy energy when compared to the reanalysis. Spatial analysis translates
the above results as models depicting greater energy associated with the subtropical jet streams than effectively observed. This
pattern is observed regardless of season or hemisphere. The projections for future climate scenarios suggest a further increase in
the zonal kinetic energy, with a slight average reduction in all other terms. This pattern is seen in association with a substantial
decrease in the conversion term mainly associated with sensible heat transport (CA) under a warmer climate. In agreement with
recent work in the literature, our results suggest an overall reduction of the global energetics under increasing CO2.