Abstract: Analytic solutions of the continuous spectrum are obtained for quasigeostrophic models in which the basic-state meridional potential vorticity (PV) gradient is uniform but nonzero. The modes that form the continuous ...

Abstract: In a recent paper, explicit expressions have been derived for obtaining and subsequently partitioning streamfunction growth rates for a class of quasigeostrophic models. Unfortunately, however, some typographical errors ...

Abstract: ecent temperature extremes have highlighted the importance of assessing projected changes in the variability of temperature as well as the mean. A large fraction of present-day temperature variance is associated with thermal ...

Abstract: A theoretical framework is developed for the evolution of baroclinic waves with latent heat release parameterized in terms of vertical velocity. Both wave?conditional instability of the second kind (CISK) and large-scale ...

Abstract: In the Eady model, where the meridional potential vorticity (PV) gradient is zero, perturbation energy growth can be partitioned cleanly into three mechanisms: (i) shear instability, (ii) resonance, and (iii) the Orr ...

Abstract: he winter of 2013?14 had unusual weather in many parts of the world. Here we analyze the cold extremes that were widely reported in North America and the lack of cold extremes in western Europe. We perform a statistical ...

Abstract: Political decisions, adaptation planning, and impact assessments need reliable estimates of future climate change and related uncertainties. To provide these estimates, different approaches to constrain, filter, or weight ...