Abstract: The treatment of the potential vorticity (PV) distribution as a composite of individual perturbations is central to the diagnostic and conceptual utility of PV. Nonlinearity in the inversion operator for Ertel's potential ...

Abstract: No Abstract Available

Abstract: The author diagnoses two observed cases of Rocky Mountain lee cyclogenesis and perform several idealized simulations to understand the effect of the mountains on incident baroclinic waves. Several issues are examined: 1) ...

Abstract: The present study considers a variety of cyclone developments that occur in an idealized, baroclinic channel model featuring full condensation heating effects over an ocean with prescribed sea surface temperature variation. ...

Abstract: he upscale aggregation of convection is used to understand the emergence of rotating, coherent midtropospheric structures and the subsequent process of tropical cyclone formation. The Cloud Model, version 1 (CM1), is ...

Abstract: The dynamics of a cyclone development over the midwestern United States on 15 December 1987 are investigated with a focus on the relationship between cyclone structure and condensational heating. Low-level cyclogenesis is ...

Abstract: Composite analyses of terrain-forced, mesoscale anticyclonic circulations over southern Wyoming and northern Colorado are constructed. These suggest two different types of circulations, based on upstream flow direction. ...

Abstract: The major results and discussion items presented at the 1998 Workshop on mesoscale model verification, held 18?19 June in Boulder, Colorado, are summarized. This forum represents perhaps the first attempt to bring together ...

Abstract: The authors examine numerous simulations that probe the dynamics governing the intensification and track of Tropical Cyclone Diana (1984) simulated in Part I. The development process is fundamentally dependent on a preexisting ...

Abstract: Hemispheric anomaly patterns of 1000?500 mb thickness were obtained for 67 cases of explosive cyclogenesis over the western North Atlantic Ocean in December-February during 1962?77, beginning between latitudes 30°?40°N and ...