气象与环境学报
氣象與環境學報
기상여배경학보
JOURNAL OF METEOROLOGY AND ENVIRONMENT
2014年
1期
88-94
,共7页
吉莉%李家启%苟思%李强%汪志辉%李光兵%张爽
吉莉%李傢啟%茍思%李彊%汪誌輝%李光兵%張爽
길리%리가계%구사%리강%왕지휘%리광병%장상
人体舒适度日数%M-K突变%EOF法
人體舒適度日數%M-K突變%EOF法
인체서괄도일수%M-K돌변%EOF법
Human comfortable days%M-K mutation%EOF(Empirical Orthogonal Function)method
利用1981-2010年重庆地区34个地面气象观测站日值数据集,基于人体舒适度指数模型和气候影响评价标准,综合采用线性回归、M-K突变、小波理论和EOF分析等方法分析其时空变化特征。结果表明:重庆地区年平均人体舒适日数为199 d,主要舒适季节为春、秋两季,占全年的71%;人体舒适日数年变化较大,总体呈上升趋势,存在4 a、7-8 a的周期振荡,其中热不舒适日数呈上升趋势,冷不舒适日数呈下降趋势;年平均人体舒适日数和热不舒适日数空间分布为渝西南及渝东北地区日数较其他地区偏多,且存在季节性差异,而人体冷不舒适日数则相反。
利用1981-2010年重慶地區34箇地麵氣象觀測站日值數據集,基于人體舒適度指數模型和氣候影響評價標準,綜閤採用線性迴歸、M-K突變、小波理論和EOF分析等方法分析其時空變化特徵。結果錶明:重慶地區年平均人體舒適日數為199 d,主要舒適季節為春、鞦兩季,佔全年的71%;人體舒適日數年變化較大,總體呈上升趨勢,存在4 a、7-8 a的週期振盪,其中熱不舒適日數呈上升趨勢,冷不舒適日數呈下降趨勢;年平均人體舒適日數和熱不舒適日數空間分佈為渝西南及渝東北地區日數較其他地區偏多,且存在季節性差異,而人體冷不舒適日數則相反。
이용1981-2010년중경지구34개지면기상관측참일치수거집,기우인체서괄도지수모형화기후영향평개표준,종합채용선성회귀、M-K돌변、소파이론화EOF분석등방법분석기시공변화특정。결과표명:중경지구년평균인체서괄일수위199 d,주요서괄계절위춘、추량계,점전년적71%;인체서괄일수년변화교대,총체정상승추세,존재4 a、7-8 a적주기진탕,기중열불서괄일수정상승추세,랭불서괄일수정하강추세;년평균인체서괄일수화열불서괄일수공간분포위투서남급투동북지구일수교기타지구편다,차존재계절성차이,이인체랭불서괄일수칙상반。
Based on the diurnal meteorological data from 34 ground weather stations from 1981 to 2010 in Chongqing region,the temporal and spatial characteristics of the number of human comfortable days were analyzed in terms of human comfortable index models and assessment standards of climate impact,and the methods of a lin-ear regression,a M-K mutation,a wavelet theory and an EOF analysis were employed.The results show that the annual mean of the number of human comfortable days are 199 d in Chongqing area.The main comfortable sea-sons are spring and autumn,and both account for 7 1%of the year.The inter-annual changes of human comfortable days are significant,and it is in a rising trend in general.There are two periodic oscillations of 4 years and 7-8 years.The hot uncomfortable day is in an ascending trend,while the cold one is in a descending trend.The mean annual human comfortable days and hot uncomfortable days are greater in the southwestern Chongqing and north-eastern Chongqing than in the other areas of Chongqing and there are seasonal variations,while the reverse is true for the cold uncomfortable days.