High-resolution numerical simulations of the convective system observed in the Lago Maggiore area on 17 September 1999 (MAP IOP 2a)

被引：43

作者：

Richard, E

Cosma, S

Tabary, P

Pinty, JP

Hagen, M

机构：

[1] CNRS, Lab Aerol, F-31400 Toulouse, France

[2] Univ Toulouse 3, F-31062 Toulouse, France

[3] CNRS, Paris, France

[4] Univ Paris 06, Paris, France

[5] CNRS, Ctr Etud Environm Terrestre & Plantetaires, Velizy Villacoublay, France

[6] DLR, Inst Phys Atmosphare, Oberpfaffenhofen, Germany

来源：

QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY | 2003年 / 129卷 / 588期

关键词：

Mesoscale Alpine Programme; orography; precipitation; radar;

D O I：

10.1256/qj.02.50

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

During Intensive Observing Period (IOP) 2a of the Mesoscale Alpine Programme (MAP) a significant convective system developed in the Lago Maggiore area. Its evolution is simulated using the Meso-NH model run over three nested domains with a 2 km horizontal resolution for the finest grid. Model results are assessed by comparing computed precipitation and model radar reflectivities with observed parameters. A control simulation initialized with European Centre for Medium-Range Weather Forecasts analyses and run with the standard microphysical scheme of the model yields fairly realistic results. Neglecting the ice processes in the microphysical scheme degrades the numerical results, whereas, significant improvement is obtained when heavy rimed particles are considered to be hail instead of graupel.

引用

页码：543 / 563

页数：21