Abstract
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 seasons 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.
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CITATION STYLE
Widiyatmi, I., Yamanaka, M. D., Hashiguchi, H., Fukao, S., Tsuda, T., Ogino, S. Y., … Wiryosumarto, H. (1999). Quasi 4 day mode observed by a boundary layer radar at Serpong (6°S, 107°E), Indonesia. Journal of the Meteorological Society of Japan, 77(6), 1177–1184. https://doi.org/10.2151/jmsj1965.77.6_1177
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