内蒙古气象
內矇古氣象
내몽고기상
METEOROLOGY JOURNAL OF INNERMONGOLIA
2012年
5期
13-15
,共3页
热度日%冷度日%气候变化
熱度日%冷度日%氣候變化
열도일%랭도일%기후변화
heating degree days%cooling degree days%climate warming
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H(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H,55a问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。
利用1952--2006年呼和浩特市逐日平均溫度統計瞭熱度日(HDD)和冷度H(cDD)變化特徵。錶明,呼和浩特市HDD以1月最大(918度日),多年年均值為4527度H,55a問呈現比較明顯的平穩降低態勢,線性趨勢率為-145.5度日/10a;CDD以7月最大(42度日);多年年均值為74度日,多年變化呈現波動上升的趨勢,線性趨勢率為16.5度日/10a。HDD和CDD的日數動態變化與二者多年變化趨勢是一緻的.分彆呈現降低和上升的趨勢。呼和浩特市理論供暖和製冷日數分彆為271d和38d。
이용1952--2006년호화호특시축일평균온도통계료열도일(HDD)화랭도H(cDD)변화특정。표명,호화호특시HDD이1월최대(918도일),다년년균치위4527도H,55a문정현비교명현적평은강저태세,선성추세솔위-145.5도일/10a;CDD이7월최대(42도일);다년년균치위74도일,다년변화정현파동상승적추세,선성추세솔위16.5도일/10a。HDD화CDD적일수동태변화여이자다년변화추세시일치적.분별정현강저화상승적추세。호화호특시이론공난화제랭일수분별위271d화38d。
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.