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两次强对流背景下的对流层向平流层输送特征模拟与分析

曹治强 吕达仁

大气科学Issue(5):875-884,10.
大气科学Issue(5):875-884,10.DOI:10.3878/j.issn.1006-9895.1411.14175

两次强对流背景下的对流层向平流层输送特征模拟与分析

Simulation and Analysis of Troposphere-to-Stratosphere Transport Caused by Two Severe Convection Events

曹治强 1吕达仁2

作者信息

  • 2. 中国科学院大学,北京100049
  • 折叠

摘要

Abstract

AbstractTo study the effect of the troposphere-to-stratosphere transport (TST) caused by severe convection and the associated background synoptic system, two severe convection events, one that occurred at low latitude and one at midlatitude, were simulated. In the low-latitude case, in Guangxi Province, the proportion of TST caused directly by severe convection was about 18%, while the TST caused by the synoptic background system of the severe convection was about 82%. In the midlatitude case, in Hebei Province, the proportion of TST caused directly by severe convection was about 0.17%, while the TST caused by the synoptic background system of the severe convection was about 99.83%. In terms of the motion of particles transported from the troposphere, the particles transported directly by severe convection moved towards the southwest in both events, while the particles transported by the synoptic background systems moved towards the east. In general, the amount of TST caused by the synoptic background system of the severe convection was much larger than that caused directly by the severe convection. The TST caused by the synoptic background systems occurred two days after the severe convection initiation and reached a maximum six or seven days later.

关键词

强对流/对流层向平流层输送/拉格朗日模式/模拟

Key words

Severe convection/Troposphere-to-stratosphere transport/Lagrangian model/Simulation

分类

天文与地球科学

引用本文复制引用

曹治强,吕达仁..两次强对流背景下的对流层向平流层输送特征模拟与分析[J].大气科学,2015,(5):875-884,10.

基金项目

国家重点基础研究发展计划(973计划)项目2010CB428601 ()

大气科学

OA北大核心CSCDCSTPCD

1006-9895

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