def global_mean_temperature(self):
return global_mean(self.Ts)<EOL>
Convenience method to compute global mean surface temperature.

        Calls :func:`~climlab.domain.field.global_mean` method which
        for the object attriute ``Ts`` which calculates the latitude weighted
        global mean of a field.

        :Example:

            Calculating the global mean temperature of initial EBM temperature::

                >>> import climlab
                >>> model = climlab.EBM(T0=14., T2=-25)

                >>> model.global_mean_temperature()
                Field(13.99873037400856)