Precursor identification of a cyclogenesis

被引：10

作者：

Arbogast, P ^{[1
]}

Joly, A ^{[1
]}

机构：

[1] Meteo France, CNRM, GMME, F-31057 Toulouse, France

来源：

COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE A-SCIENCES DE LA TERRE ET DES PLANETES | 1998年 / 326卷 / 04期

关键词：

weather forecasting; cyclogenesis; potential vorticity;

D O I：

10.1016/S1251-8050(97)86811-5

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

During the last few years, the theoretical study of cyclogenesis has experiences a remarkable renewal. The new data required by today's concepts were to be provided by the observations collected during the FASTEX field experiment. This paper presents one of the very first dynamical results. It reveals the unexpected importance of a low level precursor in IOP 17 cyclone, exhibited using a new objective diagnostic tool: the manipulation of initial conditions through potential vorticity and its inversion. Using the semi-qualitative reasoning, the case looked like a straightforward triggering of the cyclone by an upper tropospheric disturbance. (C) Academie des Sciences/Elsevier, Paris.

引用

页码：227 / 230

页数：4

共 9 条

[1]

COURTIER P, 1991, ECMWF SEMINAR P, V7, P193

[2] SOME NUMERICAL EXPERIMENTS WITH VARIABLE-STORAGE QUASI-NEWTON ALGORITHMS [J].