Abstract: y partitioning the hydrostatically balanced flow into a nonlinearly balanced primary-flow part and a remaining secondary-flow part and then truncating the secondary-flow vorticity advection and stretching?tilting terms in ...

Abstract: he hydrostatic potential vorticity (HPV) formulated in terrain-following coordinates is reviewed and shown to be equivalent to the widely used HPV formulations in the height, pressure, and isentropic coordinates in the ...

Abstract: new application of the Helmholtz theorem that divides the horizontal wind into purely rotational, purely divergent, and harmonic deformational flow is put forward in this study. The formulas and methods, with consideration ...

Abstract: his paper proposes a new method to properly define and accurately determine the vortex center of a model-predicted tropical cyclone (TC) from a dynamic perspective. Ideally, a dynamically determined TC vortex center should ...

Abstract: ased on reanalysis and observational datasets, this study proposes a reasonable mechanism for summer rainfall variations over the low-latitude highlands (LLH) of China, in which a subtropical Indian Ocean dipole (SIOD)-like ...

Abstract: Well trajectory design and optimization are essential parts in well planning before drilling. The main objective of the design is to find an optimal trajectory for efficient and safe drilling. Meanwhile, the anticollision ...