Unbalanced Frontogenesis. Part I: Zero Potential Vorticity

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Mid-tropospheric Frontogenesis and Potential Vorticity

Mid-tropospheric frontogenesis is investigated for a case study in which special three-hourly rawinsonde data are available. Isentropic analyses are generated by objective means. Detailed machine isentropic trajectories lead to the three-dimensional description of the velocity field in space and time accompanying the frontogenesis. Ertel potential vorticity calculations serve as a check on traj...

متن کامل

Blocking and Frontogenesis by Two-Dimensional Terrain in Baroclinic Flow. Part I: Numerical Experiments

The shallow atmospheric fronts that develop in the early winter along the east coast of North America have been attributed, in various modeling and observational studies, to the land–sea contrasts in both surface heating and friction. However, typical synoptic conditions are such that these ‘‘coastal’’ fronts could also be a type of upstream influence by the Appalachian Mountain chain. Generali...

متن کامل

Baroclinic Vorticity Production in Protoplanetary Disks Part I: Vortex Formation

The formation of vortices in protoplanetary disks is explored via pseudospectral numerical simulations of an anelastic-gas model. This model is a coupled set of equations for vorticity and temperature in two dimensions which includes baroclinic vorticity production and radiative cooling. Vortex formation is unambiguously shown to be caused by baroclinicity because (1) these simulations have zer...

متن کامل

Potential vorticity 1

LTEX source, defined here to print as italic. Possible cross-references to other articles are flagged \crossref{...}. For visibility, \crossref{...} is temporarily defined to print as sans-serif. Therefore, sans-serif italic signals both a new term and a possible cross-reference. I have used \openingscarequote...\closingscarequote in a few places. This bends the house-style rules, but unfortuna...

متن کامل

Gravity Waves in a Horizontal Shear Flow. Part I: Growth Mechanisms in the Absence of Potential Vorticity Perturbations

Interaction of internal gravity waves with a horizontal shear flow in the absence of potential vorticity perturbations is investigated making use of closed-form solutions. Localized wave packet trajectories are obtained, the energy growth mechanisms occurring are identified, and the potential role of perturbation growth in wave breaking is assessed. Regarding meridional propagation, the wave pa...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of the Atmospheric Sciences

سال: 2001

ISSN: 0022-4928,1520-0469

DOI: 10.1175/1520-0469(2001)058<2180:ufpizp>2.0.co;2