东兴度日温度对气候变化的响应分析

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Abstract According to daily average temperature of national basic meteorological stationin Dongxing from Jan.1st,1955 to Dec.31th,2010,the trend of average monthly andannual heating degree-day (HDD) and cooling degree-day (CDD) isanalyzed by climate statistics.In the context of global warming,the impact of degree-day temperature on climate change is revealed,and the effect of degree-day temperatureon the energy is also discussed.The results show that the average monthly HDD isconcentrated from April to November with its peaks in January and February.Theaverage monthly CDD is focused from May to October with its peaks in Julyand August.The HDD variation for many yeas presents downward trend that is opposite toCDD variation.The decreasing and increasing rate of HDD and CDD is -21.8 ℃ / 10a and 22.3 ℃ / 10a respectively.It has a significant correlation among averagetemperature,HDD and CDD,whose correlation coefficients are all pass significance test a=0.001.The relationship between HDD and average temperature shows negative correlation trend,while it presents positive correlation trendbetween CDD and the average temperature.This trend is influenced by climate warming with decreasing HDD value and increasing CDD value,which indicates that thecooling consumption in summer will be enhanced.

Key words： degree-day temperature climate change analysis

Received: 11 June 2012

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	Huang Lichao
	Chen Guodi

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Huang Lichao,Chen Guodi. Effect of degree-day temperature on climate change in Dongxing[J]. Meteorological Hydrological and Marine Instrument, 2013, 30(1): 49-52.

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http://www.qxswhy.com/EN/ OR http://www.qxswhy.com/EN/Y2013/V30/I1/49

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