Figure (top) shows an annualized mean net upward surface flux Fs for the ERBE period (February 1985 – April 1989) in W m-2 at T42 spectral truncation. Negative (blue) regions in equatorial and Tropical oceans represent a net flux of energy from the atmosphere into the oceans on an annual mean basis. Other noteworthy features are the significant net fluxes of energy from the Kuroshio, the Gulf Stream, and the Aghulas Current into the atmosphere. Ideally, Fs should be roughly 0 over land areas. Bottom figure shows the annualized mean net upward surface flux Fs without land areas masked.

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