赤道西太平洋暖池次表层水温变化对热带气旋的影响

吴迪生; 白毅平; 张红梅; 许建平; 庞海龙; 张俊峰

赤道西太平洋暖池次表层水温变化对热带气旋的影响

1.
国家海洋局南海预报中心, 广东, 广州, 510300;国家海洋局海洋动力过程与卫星海洋学重点实验室, 浙江, 杭州, 310012
2.
国家海洋局南海预报中心, 广东, 广州, 510300
3.
国家海洋局海洋动力过程与卫星海洋学重点实验室, 浙江, 杭州, 310012

基金项目: 国家重点基础研究发展规划项目(G1998040900)第一部分;国家海洋局海洋动力过程与卫星海洋学重点实验室;中国科学院南海海洋研究所LED实验室资助

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出版历程
- 收稿日期: 2002-02-04
- 修回日期: 2002-09-10

THE INFLUENCE OF VARIATION OF SUBSURFACE OCEAN TEMPERATURE IN THE EQUATORIAL WESTERN PACIFIC WARM POOL ON TROPICAL CYCLONES

1.
South China Sea forecasting Center, State Oceanic Administration, Guangzhou 510300, China;Key Lab of Ocean Dvnatnic Processcs and Satellite Oceanography, SOA, Hangzhou 310012, China
2.
South China Sea forecasting Center, State Oceanic Administration, Guangzhou 510300, China
3.
Key Lab of Ocean Dvnatnic Processcs and Satellite Oceanography, SOA, Hangzhou 310012, China

摘要

摘要: 分析了西太平洋暖池和南海次表层水温变化对TC的影响,研究结果表明:当赤道西太平洋暖池次表层水温夏半年持续出现正(负)距平时,西北太平洋生成的TC个数比常年偏多(少)是主要现象,这种现象极值年份尤其明显,对南海TC(指南海生成的TC,下同)的个数影响不明显,西北太平洋和南海生成TC的时间比常年提早(推迟)。当南海北部次表层水温夏季和秋季持续出现正(负)距平时,南海TC比常年偏多(少)。TC对南海和东海的影响趋势是一致的,但所受影响的程度东海比南海更为强烈。原因是东海台风波浪比南海高、海面气温比南海低、相对湿度比南海小,故导致SST急速下降。
- 西太平洋 /
- 暖池 /
- 水温 /
- 热带气旋
Abstract: Using observed data,the authors have analyzed the impact of the variation of subsurface ocean temperature of the equatorial Western Pacific Warm Pool and South China Sea on the tropical cyclones. The results show that the number of tropical cyclones in the Western Pacific are more(or less)than the normai year,and their intensities also stronger(or weaker),when the subsurface ocean temperature of the equatorial Westem Pacific Warm Pool persistently shows positive(or negative)anomaly. This phenomena is especially evident in the extreme years,but effects of the phenomena on tropical cyclones in South China Sea are not obvious. At the same time,the forming of the tropical cyclones in the western and Northern Pacific and in South China Sea is often ahead of time (or postpones). Usually,when the subsurface ocean temperature in the north of South China Sea appears in the positive(or negative)anomaly,the number of tropical cyclones forming in South China Sea are more(or less).
- Western Pacific /
- warmpool /
- subsurface ocean temperature /
- tropical cyclones

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参考文献(8)

[1]	FISHER E L.Hurricane and the sea-surface temperature field[J].Jour Meteor,1958,15:328-333.
[2]	PERLROTH L.Relationship of central pressure of hurricane Esther(1961)and the sea-surface temperature field[J].Tellus,1962,14:403-408.
[3]	PERLROTH L.Hurricane behavior as related to oceanographic environmental condition[J].Ibid,1967,19:258-268.
[4]	PERLROTH L.Effects of oceanographic media on equatorial Atlantic hurricane[J].Ibid,1969,21:230-244.
[5]	秦曾灏,端义宏.我国热带气旋强度变化研究的新进展[A].全国热带气旋科学讨论会论文集[C].北京:气象出版社,2001.25-30.
[6]	陈联寿,丁一汇.西太平洋台风概论[M].北京:科学出版社出版,1979.404-405.
[7]	王昭正,袁叔尧.南海台风发生与海洋环境[A].台风业务试验研究文集[C].上海台风研究所.北京:气象出版社,1986.177-185.
[8]	潘怡航.赤道东太平洋热力状况对西太平洋台风发生频率的影响[J].气象学报,1982,40(1):24-34.