| 南京56年来冬季气温变化特征 |
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| 引用本文： | 缪启龙,许遐祯,潘文卓.南京56年来冬季气温变化特征[J].应用气象学报,2008,19(5):620-626. |
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| 作者姓名： | 缪启龙 许遐祯 潘文卓 |
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| 作者单位： | 1.江苏省气象灾害重点实验室 南京信息工程大学, 南京 210044 |
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| 基金项目： | 江苏省气象灾害重点实验室基金 |
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| 摘 要： | 利用南京市1951年1月—2007年4月逐日气温观测资料, 分析讨论了南京56年冬季平均气温、极端最低气温、冷积温和低温日数的变化趋势和特征, 探讨了南京冬季气温的年代变化和冷冬、暖冬的分布。结果表明: 56年来南京冬季平均气温是明显上升的, 而极端低温和冷积温上升更为显著; 南京20世纪50年代和60年代为冬季低温期, 冷冬皆分布在80年代以前, 90年代以后没有冷冬, 多为暖冬, 近10年为两年一遇, 80年代以来南京冬季明显升温, 90年代以来的南京冬季出现了持续的偏暖异常。
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| 关 键 词： | 南京 冬季气温 冷积温 暖冬 冷冬 |
| 收稿时间： | 2007-05-31 |
Winter Temperature Characteristics of Nanjing During 1951-2006 |
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| Miao Qilong,Xu Xiazhen and Pan Wenzhuo.Winter Temperature Characteristics of Nanjing During 1951-2006[J].Quarterly Journal of Applied Meteorology,2008,19(5):620-626. |
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| Authors: | Miao Qilong Xu Xiazhen and Pan Wenzhuo |
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| Affiliation: | 1.Jiangsu Key Laboratory of Meteorology Disaster, Nanjing University of Information Science & Technology, Nanjing 2100442.Jiangsu Climate Center, Nanjing 210009 |
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| Abstract: | Based on the daily temperature data during January 1951 to April 2007 in Nanjing
, the change trends and characteristics of winter average temperature, annual ex
treme low temperature, cold accumulated temperature and low temperature days in
Nanjing in the recent 56 years are analyzed and studied. The annual change of t
he winter temperature and the distribution of warm winter and cold winter are di
scussed. The results show that the annual mean temperature tends to rise in the
recent 56 years, and that winter average temperature also tends to rise obviousl
y as well as the winter lowest temperature and cold accumulated temperature tend
s to rise even more remarkably. In recent 56 years, the average temperatures in
November and December have no obvious change, at the same time the rising tenden
cy of average temperature in January, February and March is very remarkable. The
rise of temperature in winter is mainly contributed to by the rise of temperatu
re in January, February and March, and that in November and December is slight.
The obvious rise of winter temperature in recent 56 years is in accord with the
global warming. The winters of 1950s and 1960s in Nanjing are low temperature pe
riods, and the winter temperature tends to rise after 1970s. The phenomena of co
ld winter are all before 1980s, they don't appear again till after 1990s. The ph
enomena of warm winter are very frequently observed after 1990s, and they appear
once every two years. The winter temperature in Nanjing tends to rise more obvi
ously after 1980s, and the extraordinary phenomena of warm winter sustain after
1990s in Nanjing. The phenomenon of being unusual warm in winter is more conspic
uous in early several years in the 21st century. |
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| Keywords: | Nanjing winter temperature cold accumulated temperature warm winter cold winter |
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