Quasi 4 Day Mode Observed by a Boundary Layer Radar at Serpong (6°S, 107°E), Indonesia
Quasi 4 Day Mode Observed by a Boundary Layer Radar at Serpong (6°S, 107°E), Indonesia
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印度尼西亚 Serpong（南 6°，东 107°）边界层雷达观测到的准 4 天模式
DOI：
10.2151/jmsj1965.77.6_1177
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发表时间：
1999
影响因子：
3.1
通讯作者：
H. Wiryosumarto
中科院分区：
文献类型：
--
作者：
Ipuk Widiyatmi;M. Yamanaka;H. Hashiguchi;S. Fukao;T. Tsuda;S. Ogino;S. B. Harijono;H. Wiryosumarto
对1992/93、1993/94和1994/95年雨季期间印度尼西亚西爪哇Serpong（6°S，107°E）边界层雷达（BLR）观测到的对流层低层风的谱分析表明，在近4天的周期内有一个明显的谱峰。这种准4天模式（Q4 DM）的过滤分析表明，几乎在垂直的相位结构。1992/93年雨季的GANAL（日本气象厅全球客观分析）资料表明，在700 hPa高度上，纬向风分量一般有向西传播的位相。
A spectral analysis of lower tropospheric winds, observed by the Boundary Layer Radar (BLR) at Serpong (6°S, 107°E) in West Java, Indonesia during 1992/93, 1993/94, and 1994/95 rainy scasons reveals a pronounced spectral peak, at a period near 4 days. Filtered analysis of this quasi 4 day mode (Q4DM) shows almost an in-phase structure in the vertical. The GANAL (Global Objective Analysis by Japan Meteorological Agency) data for 1992/93 rainy seasons shows that in general the meridional wind component, at the altitude 700 hPa, has a westward phase propagation.