可变分辨率展宽网格在区域物理参数化大气模式中的应用

doi:10.11867/j.issn.1001-8166.2007.11.1185

地球科学进展 ›› 2007, Vol. 22 ›› Issue (11): 1185 -1190. doi: 10.11867/j.issn.1001-8166.2007.11.1185

钱建华

哥伦比亚大学气候与社会国际研究所，美国纽约，10964

收稿日期:2007-09-20 修回日期:2007-01-01 出版日期:2007-11-10
通讯作者: QIAN Jian-hua, International Research Institute for Climate and Society (IRI), The Earth Institute at Columbia University, Lamont Campus.E-mail: jqian@iri.columbia.edu E-mail:jqian@iri.columbia.edu

Application of a Variable-Resolution Stretched Grid to a Regional Atmospheric Model with Physics Parameterization

QIAN Jian-hua

International Research Institute for Climate and Society, Columbia University, New York 10964,USA

Received:2007-09-20 Revised:2007-01-01 Online:2007-11-10 Published:2007-11-10

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将有限区域展宽网格方法应用于区域物理参数化大气模式中，来检验其模拟湿物理过程的能力。展宽网格模型旨在在一个大的有限空间区域中得到我们所关注的小区域的高分辨率。运用展宽网格模型对南美地区进行模拟的结果表明：当拥有充足的物理参数集时，模型模拟效果良好；并且，如果改进计算机功率，便可得到与始终保持高分辨率模拟具有可比性的输出结果。

关键词: 展宽网格方法, 区域大气模式, 物理参数, 南美地区

A limited-area stretched-grid method is tested in a regional atmospheric model with physics parameterization to examine its capability to simulate moist physical processes. The stretched-grid model is aimed at achieving high resolution in a small area of interest while covering a large limited-area spatial domain. The simulation of the stretched-grid model over South America shows that it works well when including a full set of physics parameterization and is able to produce comparable results to those in the uniform high-resolution simulation but with improved computational efficiency.

Key words: Stretched-grid method, Physics parameterization, South America., Regional atmospheric model

中图分类号:

P435

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