RELATIONSHIP BETWEEN ENSO EVENTS AND WINTER TEMPERATURE ANOMALY IN YUNNAN

Xie Ming′en; Zhang Wancheng

Vol.11, NO.1, 2000

Article Contents

Article Navigation > Journal of Applied Meteorological Science > 2000 > 11(1): 115-122

Xie Ming′en, Zhang Wancheng. Relationship between enso events and winter temperature anomaly in Yunnan. J Appl Meteor Sci, 2000, 11(1): 115-122.

Citation:

Xie Ming′en, Zhang Wancheng. Relationship between enso events and winter temperature anomaly in Yunnan. J Appl Meteor Sci, 2000, 11(1): 115-122.

Xie Ming′en, Zhang Wancheng. Relationship between enso events and winter temperature anomaly in Yunnan. J Appl Meteor Sci, 2000, 11(1): 115-122.

Citation:

Xie Ming′en, Zhang Wancheng. Relationship between enso events and winter temperature anomaly in Yunnan. J Appl Meteor Sci, 2000, 11(1): 115-122.

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RELATIONSHIP BETWEEN ENSO EVENTS AND WINTER TEMPERATURE ANOMALY IN YUNNAN

Xie Ming′en¹,
Zhang Wancheng²

1.
Yunnan Meteorological Observatory, Kunming 650034
2.
Yunnan Honghe Meteorological Bureau, Mengzi 661100

Received Date: 1998-12-01
Rev Recd Date: 1999-05-14
Publish Date: 2000-02-29

Abstract

Abstract

The influences of 11 El Niño and 8 La Niña events since 1961 on winter temperature variation in Yunnan have been analyzed. It is found that the winter temperature in Yunnan is higher (lower) in El Niño (La Niña) years, which has warm (cold) winter feature, and is more obvious in eastern, middle and southern Yunnan. The sea surface temperature a nomaly (SSTA) over the equatorial East Pacific has the positive significant correlation with winter temperature a nomaly in Yunnan, and monthly SSTA in the previous year has better positive correlation with temperature anomaly of Yunnan in January of the next year. The SST positive (negative) anomaly is a strong signal of warm (cold) winter in Yunnan. Under the influence of ENSO, the weak (strong) winter monsoon over East Asia is the main cause of warm (cold) winter in Yunnan.
- ENSO event;
- Yunnan;
- Warm (cold) winter;
- Winter monsoon anomaly;
- Anomaly correlation

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References(12)

Figures and Tables

图 1 1961～1997年ENSO年云南冬季气温累积距平分布 (℃) (a) El Niño年 (b) La Niña年

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图 2 1980年以来 (a) El Niño年和 (b) La Niña年冬季500 hPa高度距平合成图

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表 1 1961～1997年ENSO年云南冬季气温距平站数

表 2 1961～1997年云南冬季气温距平与赤道东太平洋SSTA的相关系数

表 3 1950～1997年冬季 (11月至翌年2月) 昆明日平均温度低于5 ℃的日数

表 4 1961～1997年ENSO年云南冬季气温冷暖情况

表 5 上一年逐月赤道东太平洋SSTA与次年1月云南气温距平相关系数 (1961～1997年)

References

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