In terms of the conservation of Ertel′s potential vorticity (PV) of na tural coordinates, a typical Northeast vortex process is investigated. By analyz ing the transformation between the curvature PV and sheared PV as well as their distribution, we put forward a dynamic diagnostic model for the vortex deepening and decreasing. A prediction method for Northeast cold vortex process has been advanced by a real case calculation.
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陳艷秋,余志豪.東北冷渦的位渦動力診斷模型及應(yīng)用.氣象科學(xué),2003,(4):446-451 Chen Yanqiu, Yu Zhihao. A DYNAMICAL DIAGNOSTIC MODEL OF NORTHEAST COLD VORTEX AND ITS APPLICATION. Journal of the Meteorological Sciences,2003,(4):446-451