| 呼和浩特市热度日和冷度日变化特征 |
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| 引用本文： | 王丽媚.呼和浩特市热度日和冷度日变化特征[J].内蒙古气象,2012(5):13-15. |
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| 作者姓名： | 王丽媚 |
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| 作者单位： | 鄂尔多斯市气象科技服务中心,内蒙古鄂尔多斯,017000 |
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| 摘 要： | 利用1952—2006年呼和浩特市逐日平均温度统计了热度日(HDD)和冷度日(CDD)变化特征。表明,呼和浩特市HDD以1月最大(918度日),多年年均值为4527度日,55a间呈现比较明显的平稳降低态势,线性趋势率为-145.5度日/10a;CDD以7月最大(42度日);多年年均值为74度日,多年变化呈现波动上升的趋势,线性趋势率为16.5度日/10a。HDD和CDD的日数动态变化与二者多年变化趋势是一致的,分别呈现降低和上升的趋势。呼和浩特市理论供暖和制冷日数分别为271d和38d。
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| 关 键 词： | 热度日 冷度日 气候变化 |
Characteristics of Heating Degree Days and Cooling Degree Days in Hohhot |
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| Authors: | Wang Limei |
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| Institution: | Wang Limei (Ordos Meteorological Science and Technology Service Center, Inner Mongolia Ordos 017000) |
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| Abstract: | Using the daily mean temperature from 1952 to 2011 years, the variation characteristic of heating de- gree days and cooling Degree-day degree days were counted. The result shows mean monthly maximum HDD is 915 degree-day in January and the annual mean value of HDD equals 4501 degree-day. There is a decreasing trend of -146.0 degree-day per decade. The mean monthly maximum CDD is 53 degree-day in July and the an- nual mean value of CDD in warm season is 80 degree-day. There is an increasing trend of 19.1 degree-day for CDD per decade. The number of days of HDD and CDD for dynamic change is consistent with their annual trends. The HDD and CDD are 269 days and 33 days respectively in Hohhot. |
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| Keywords: | heating degree days cooling degree days climate warming |
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