Abstract
The spatial and temporal variability of the precipitation anomaly in Malaysia in the quasi-biennial (1.5-2.5 years) and the low-frequency (3-7 years) bands were investigated. The oscillations in both bands contributed a significant proportion of the variance in the precipitation anomally. The most dominant modes for both bands had large impacts on the stations in Sabah, Sarawak and on the east coast of the Malaysian peninsula. These dominant modes had a similar manifestation, i.e. the stations experienced enhanced rainfall during periods of large negative anomaly of sea surface temperature (SST) in the central-eastern Pacific Ocean and suppressed rainfall during periods of large positive SST anomaly. Hence, these areas may face severe drought during an El Nino event and flood during La Nina. Both bands appeared to have large-scale coherence with SST, sea level pressure and zonal wind over the tropical Pacific and Indian Oceans and South China Sea. However, the two signals differed with respect to timing and propagation.
| Original language | English |
|---|---|
| Pages (from-to) | 1199-1210 |
| Number of pages | 12 |
| Journal | International Journal of Climatology |
| Volume | 21 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - Aug 2001 |
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Keywords
- ENSO
- EOF
- Low frequency
- Malaysian precipitation
- Quasi-biennial
ASJC Scopus subject areas
- Atmospheric Science
Cite this
Low frequency and quasi-biennial oscillations in the Malaysian precipitation anomaly. / Tangang @ Tajudin Mahmud, Fredolin.
In: International Journal of Climatology, Vol. 21, No. 10, 08.2001, p. 1199-1210.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Low frequency and quasi-biennial oscillations in the Malaysian precipitation anomaly
AU - Tangang @ Tajudin Mahmud, Fredolin
PY - 2001/8
Y1 - 2001/8
N2 - The spatial and temporal variability of the precipitation anomaly in Malaysia in the quasi-biennial (1.5-2.5 years) and the low-frequency (3-7 years) bands were investigated. The oscillations in both bands contributed a significant proportion of the variance in the precipitation anomally. The most dominant modes for both bands had large impacts on the stations in Sabah, Sarawak and on the east coast of the Malaysian peninsula. These dominant modes had a similar manifestation, i.e. the stations experienced enhanced rainfall during periods of large negative anomaly of sea surface temperature (SST) in the central-eastern Pacific Ocean and suppressed rainfall during periods of large positive SST anomaly. Hence, these areas may face severe drought during an El Nino event and flood during La Nina. Both bands appeared to have large-scale coherence with SST, sea level pressure and zonal wind over the tropical Pacific and Indian Oceans and South China Sea. However, the two signals differed with respect to timing and propagation.
AB - The spatial and temporal variability of the precipitation anomaly in Malaysia in the quasi-biennial (1.5-2.5 years) and the low-frequency (3-7 years) bands were investigated. The oscillations in both bands contributed a significant proportion of the variance in the precipitation anomally. The most dominant modes for both bands had large impacts on the stations in Sabah, Sarawak and on the east coast of the Malaysian peninsula. These dominant modes had a similar manifestation, i.e. the stations experienced enhanced rainfall during periods of large negative anomaly of sea surface temperature (SST) in the central-eastern Pacific Ocean and suppressed rainfall during periods of large positive SST anomaly. Hence, these areas may face severe drought during an El Nino event and flood during La Nina. Both bands appeared to have large-scale coherence with SST, sea level pressure and zonal wind over the tropical Pacific and Indian Oceans and South China Sea. However, the two signals differed with respect to timing and propagation.
KW - ENSO
KW - EOF
KW - Low frequency
KW - Malaysian precipitation
KW - Quasi-biennial
UR - http://www.scopus.com/inward/record.url?scp=0035419521&partnerID=8YFLogxK
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U2 - 10.1002/joc.676
DO - 10.1002/joc.676
M3 - Article
VL - 21
SP - 1199
EP - 1210
JO - International Journal of Climatology
JF - International Journal of Climatology
SN - 0899-8418
IS - 10
ER -