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熱帶氣旋 > 厄爾尼諾-南方濤動動態 [更新] [English]
 實時南方濤動指數 |
資料來源：請按此。此南方濤動指數是由1887至1989年的基數計算所得。資料每天 (公眾假期除外) 在澳洲東部標準時間下午2時更新一次。
| 日期 | 大溪地之氣壓 (百帕) | 達爾文之氣壓 (百帕) | 每天數值 | 30天平均南方濤動指數 | 90天平均南方濤動指數 |
| 10-03-2010 | 1012.35 | 1011.75 | -16.80 (-2.34) | -9.31 (+0.70) | -13.14 (-0.26) |
| 9-03-2010 | 1011.64 | 1010.55 | -14.46 (+1.19) | -10.01 (+0.99) | -12.88 (-0.15) |
| 8-03-2010 | 1010.59 | 1009.75 | -15.65 (+7.18) | -11.00 (+1.43) | -12.73 (-0.08) |
| 7-03-2010 | 1009.44 | 1010.10 | -22.83 (+10.53) | -12.43 (+1.92) | -12.65 (-0.18) |
| 6-03-2010 | 1007.39 | 1010.25 | -33.36 (+1.87) | -14.35 (+0.90) | -12.47 (-0.32) |
| 5-03-2010 | 1006.45 | 1009.70 | -35.23 (-12.4) | -15.25 (+0.29) | -12.15 (-0.25) |
| 4-03-2010 | 1007.29 | 1007.95 | -22.83 (+2.59) | -15.54 (+1.02) | -11.90 (-0.09) |
| 厄爾尼諾-南方濤動報告 (只提供英文版，來源請按此) |
CURRENT
STATUS as at 3rd March 2010
Next update expected by 17th March 2010 (two weeks after this update)
Summary: El Niño decay temporarily stalls.
Central Pacific Ocean temperatures have warmed slightly during the last fortnight, slowing the decay of the current El Niño event. A weakening of the trade winds over the western and central Pacific during February triggered not only the recent small warming of the Pacific, but was also related to an increase in cloudiness and tropical cyclone activity in the central Pacific. In recent days, trade winds near the equator have started to return towards near-normal strength and the SOI has rebounded by increasing in value after falling in February.
Computer models are predicting that Pacific Ocean temperatures will continue to cool, returning to neutral levels by the southern hemisphere winter. Typically, autumn is a transitional period for the El Niño-Southern Oscillation (ENSO), and the model forecasts suggest that the decay of the El Niño event is likely to follow the usual pattern.
Recent heavy rainfall over Australia appears fairly typical of past El Niño breakdowns. January 2007, February 2003, April 1998, January 1995, March 1983 and February 1973 all produced good rainfalls over parts of northern and eastern Australia on the back of an El Niño event.
The Indian Ocean Dipole (IOD) is currently neutral and is forecast to remain so through autumn.
See IOD forecasts, DMI values.
In Brief
- Central Pacific sea surface temperatures have warmed slightly during the last fortnight, slowing the decay of the current El Niño event.
- The sub-surface water of the tropical Pacific remains warmer than the long-term average.
- The SOI has increased during the last week after falling rapidly during February. The latest approximate 30-day value of the SOI is −16.
- Trade winds are close to normal across most of the Pacific.
- Cloudiness near the date-line remains above average.
- Most international computer models are predicting a return to neutral conditions by the end of the southern hemisphere autumn.
最近訪問日期: Thu Mar 11 2010 06:06:14 HKT
最近修訂日期: Tue Jun 23 2009
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