Abstract: Data from the Advanced Microwave Sounding Unit (AMSU) are used to examine a polar low that occurred in the Labrador Sea on 17?18 March 2000. During its 40-h lifetime, the polar low was observed three times by AMSU, which ...

Abstract: The 40-yr ECMWF Re-Analysis (ERA-40) data are combined with a number of novel climatologies to conduct a comprehensive examination of the response of the subtropical and extratropical atmosphere over the Pacific basin to ...

Abstract: As a step toward a more comprehensive study of the physical processes that underlie explosive cyclogenesis, a two-dimensional, semigeostrophic model with a now standard parameterization of latent heat release is used to ...

Abstract: The fifth-generation Pennsylvania State University?National Center for Atmospheric Research (PSU?NCAR) Mesoscale Model (MM5) is used to conduct a number of idealized numerical simulations to confirm recent findings of an ...

Abstract: Broadband radiative flux data from the Earth Radiation Budget Experiment (ERBE) are used to document the interannual variability of net cloud forcing over the lifetime of the ERBE scanner instruments. The study focuses on ...

Abstract: s subsaturated air ascends sloping isentropic surfaces, adiabatic expansion results in cooling and relative moistening. This process is an effective way to precondition the atmosphere for efficient moist processes while ...

Abstract: On 24?25 February 2005, a significant East Coast cyclone deposited from 4 to nearly 12 in. (?10?30 cm) of snow on parts of the northeastern United States. The heaviest snowfall and most rapid deepening of the cyclone ...

Abstract: suite of idealized mesoscale model simulations are conducted to examine the dynamic pathway to the genesis of short-scale, moist baroclinic disturbances. It is shown that in an initially subsaturated environment, two ...

Abstract: Idealized simulations of a diabatic Rossby vortex (DRV) in an initially moist neutral baroclinic environment are performed using the fifth-generation National Center for Atmospheric Research?Pennsylvania State University ...

Abstract: ropical cyclogenesis is generally considered to occur in regions devoid of baroclinic structures; however, an appreciable number of tropical cyclones (TCs) form in baroclinic environments each year. A global climatology ...