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| 西宁市气温变化与热岛效应分析 | |
| 引用本文： | 于斌,刘峰贵,周强,梁军.西宁市气温变化与热岛效应分析[J].安徽农业科学,2008,36(36). |
| 作者姓名： | 于斌 刘峰贵 周强 梁军 |
| 作者单位： | 1. 青海师范大学生命与地理科学学院,青海西宁,810008 2. 北京师范大学,北京,100875 3. 黑龙江省大庆市大庆一中,黑龙江大庆,163453 |
| 基金项目： | 教育部"春晖计划"项目 |
| 摘 要： | 选取1961~2004年西宁站和周围3站的月平均气象资料,对西宁站与周围3站的气温距平3年移动平均变化进行分析,发现西宁市平均气温上升的趋势中有2个明显的变化期。然后利用1961~1974年(较长的平稳期)西宁与周围气象资料建立函数关系,求得1974年后西宁站由于热岛效应所产生的净增强值。其计算结果是西宁市1974~2004年的平均气温比1974年以前的平均气温增加了0.49℃,并且西宁市的热岛效应呈总体减弱的趋势。最后通过数学模型求得剔除热岛效应后西宁市的气温变化曲线,但西宁市的平均气温仍然呈升高的趋势,1961~2004年的气温平均升高0.40℃。这一变化不但与西宁市周围的地形有关,还与全球变化有密切的关系。 |
| 关 键 词： | 西宁市 气温变化 热岛效应 全球变暖 |
Analysis of the Air Temperature Changes and Heat Island Effect in Xining City |
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| Abstract: | Taking the monthly average meteorological data from Xining Station and three surrounding stations from 1961 to 2004,three-year moving average changes of temperature anomaly at Xining Station and its three surrounding stations were analyzed.It was found that the increasing trend of average temperature in Xining City had two obvious changing periods.Then the meteorological data of Xining Station and its surrounding during 1961-1974(a relatively longer stable period)were used to establish the functional relationship.The net increase value of temperature caused by heat island effect in Xining Station after 1974 was obtained.The average temperature during 1974-2004 in Xining Station increased 0.49 ℃ than the average temperature before 1974.And the heat island effect in Xining City showed an overall weakened trend.Finally,the temperature change curve in Xining City after eliminating the heat island effect was obtained through mathematical model.The average temperature in Xining City still showed an increasing trend.The temperature increased 0.40 ℃ averagely from 1961 to 2004.The change was not only related with the landform around Xining,but it was also had a close relationship with the global changes. |
| Keywords: | Xining City Temperature changes Heat island effect Global warming |
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