Abstract: The interaction between trace shortwave radiative absorbers and the dynamical circulation is shown to be linearly unstable for horizontally uniform basic states with a vertical gradient in the basic-state absorber mixing ...

Abstract: The basic theory of unstable radiative-dynamical interactions developed in a companion paid is extended to account for several complicating effects. Treating the effect of absorber perturbations on the shortwave radiative ...

Abstract: The relationship between the eddy heat flux and vertical shear in the extratropical atmosphere is studied by developing various linear stochastic models fitted to the observed January and July Northern Hemispheric data. ...

Abstract: A global atmosphere?land model with an embedded subgrid orography scheme is used to simulate the period 1977?2100 using ocean surface conditions and radiative constituent concentrations for a climate change scenario. Climate ...

Abstract: A method of retrieving vertical profiles of cloud condensation nuclei (CCN) concentration from surface measurements is described. Surface measurements of the CCN concentration are scaled by the ratio of the backscatter (or ...

Abstract: A set of general circulation model simulations is analyzed to determine how cloud distribution and cloud radiative properties might change as climate warms and to isolate and quantify the various feedback effects of clouds ...

Abstract: Bulk cloud microphysics parameterizations typically employ time steps of a few tens of seconds. Although the computational burden of these parameterizations is acceptable for the 1-day mesoscale cloud simulations for which ...

Abstract: An objective method is used to isolate instances of blocking ridges from instances of transient ridges for 10 winters of Northern Hemisphere data. The vorticity budgets and heat budgets of the blocking ridge cases are ...

Abstract: The low-level jet frequently observed in the Great Plains of the United States forms preferentially at night and apparently influences the timing of thunderstorms in the region. The authors have found that both the European ...

Abstract: The climate simulated by a global atmosphere?land model with a physically based subgrid orography scheme is evaluated in 10 selected regions. Climate variables simulated for each of multiple elevation classes within each ...