Potential energy for slantwise parcel motion

Atmospheric Science Letters - Tập 1 - Trang 56-61 - 2000
S.L. Gray1, A.J. Thorpe2
1University of Reading, U.K
2The Met. Office, U.K.

Tóm tắt

AbstractTwo formulations for the potential energy for slantwise motion are compared: one which applies strictly only to two‐dimensional flows (SCAPE) and a three‐dimensional formulation based on a Bernoulli equation. The two formulations share an identical contribution from the vertically integrated buoyancy anomaly and a contribution from different Coriolis terms. The latter arise from the neglect of (different) components of the total change in kinetic energy along a trajectory in the two formulations. This neglect is necessary in order to quantify the potential energy available for slantwise motion relative to a defined steady environment. Copyright © 2000 Royal Meteorological Society.

Tài liệu tham khảo

10.1002/qj.49710544615 10.1002/qj.49709540514 10.1175/1520-0469(1983)040<2368:TLPDOM>2.0.CO;2 1994 Oxford University Press Oxford K. A. Emanuel Atmospheric Convection Gray, S. L., 2000, Parcel theory in three‐dimensions and the calculation of SCAPE, Mon. Wea. Rev 10.1002/qj.49709239204 10.1002/qj.49710243208 10.1175/1520-0493(1990)118<2745:SCFNWP>2.0.CO;2
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Atmospheric Science Letters

Tập 1

56-61

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