Abstract: In this note we study a simple truncated spectral model of a fluid in a pure convective motion due to Lorenz (1963). We find that where the equations are perturbed by a stochastic Wiener process (white noise), the system ...

Abstract: A simplified version of a previously described dynamical model governing global ice mass, atmospheric carbon dioxide, and mean ocean temperature (that may also be a proxy for some other CO2?controlling oceanic variable, ...

Abstract: The statistical equilibration of baroclinic waves in a two-level quasigeostrophic model subject to forcing and dissipation is studied. The model employed may be formulated in either spherical or Cartesian geometry and is ...

Abstract: Because of the small net rates of energy flow involved in very long-term changes in ice mass (10?1 W m?2) it will be impossible to proceed in a purely deductive manner to develop a theory for these changes. An inductive ...

Abstract: A preliminary study of the probability density distribution of the wavenumber 3 amplitude in midlatitudes of the Southern Hemisphere is undertaken with 4.25 years of 500 mb height data compiled by the European Centre for ...

Abstract: The transient eddy height variance in midlatitudes during Southern Hemisphere (SH) winter achieves its largest value at zonal wavenumber 3. The presence of two highly statistically significant modes in the probability ...

Abstract: Perpetual January and July simulations each 1200 days long of the NCAR Community Climate Model (CCM0B) are investigated for the existence of large scale, midlatitude weather regimes. Four realizations of the midlatitude ...

Abstract: The effect of the zonally asymmetric forcing due to topography on the low-frequency variability of the large-scale flow is investigated for Northern Hemisphere winter conditions. Extended general circulation model integrations ...

Abstract: The investigation for evidence of multiple statistical flow regimes in the amplitude of the planetary-scale waves presented earlier by Hansen and Sutera is revisited. A methodology for generating Monte Carlo tests of the ...

Abstract: The composite of large amplitude flow anomalies identified from extremely large amplitudes of the planetary-scale waves is examined in terms of the temporal and spatial evolution of both the large-scale flow and the storm ...