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海陆分布和地形对1998年夏季风爆发的热力影响

邵慧 钱永甫

热带气象学报2001,Vol.17Issue(1):45-56,12.
热带气象学报2001,Vol.17Issue(1):45-56,12.

海陆分布和地形对1998年夏季风爆发的热力影响

THERMAL INFLUENCES OF LAND-SEA CONTRAST AND TOPOGRAPHY ON SUMMER MONSOON OF 1998

邵慧 1钱永甫1

作者信息

  • 1. 南京大学大气科学系,
  • 折叠

摘要

Abstract

In this work, the SCSMEX data are used to diagnose and comparethe local land-sea thermal conditions and to discuss the possible influences of the thermal forcing of the western Pacific and the Tibetan Plateau on the onset and the development of summer monsoon in 1998. Results show that the distributions of the heat sources are closely related to the land-sea contrast. The topographic blocking leads to the main maximum zones of the heat sources more southward in the areas with the land-sea contrast than in the areas with only oceans. The surface heating is characterized with the apparent seasonal variation and the land-sea difference. The relationship between the western Pacific and the onset of summer monsoon appears in the variations of the surface sea temperature (SST) and the latent heat. The mechanism of the influence of the Tibetan Plateau during the summer monsoon is different: it is characterized by the sensible heating during the South China Sea monsoon and by the condensed latent heating during the Indian monsoon.

关键词

夏季风/海陆对比/地形/热力影响

分类

天文与地球科学

引用本文复制引用

邵慧,钱永甫..海陆分布和地形对1998年夏季风爆发的热力影响[J].热带气象学报,2001,17(1):45-56,12.

基金项目

<国家重点基础研究发展规划>项目第一部分 ()

热带气象学报

OA北大核心CSCD

1004-4965

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