CAJ | 학술논문

利用1961—2010年四川盆地122个气象站观测资料，分析了四川盆地年平均霾日数时空分布特征及霾日数季节和年变化趋势，探讨了近50 a四川盆地大气干消光系数、风速、能源消耗和人口等因素与霾日数之间的关系。结果表明：1961—2010年四川盆地122个站年平均霾日数为62.5 d，霾日数最多的站可达10.00 d以上。霾日数有明显季节变化，四川盆地冬季霾日数最多（28.4 d），春季和秋季次之，夏季最少（5.9 d）。四川盆地有104个站霾日数年变化呈增加的趋势，其中有71个站通过了置信度99％的检验，霾日数增加最多的为四川省内江地区的戚远，气候倾向率为42.0 d／10 a；霾日数增加最少的为成都市的新都，气候倾向率为0.4 d／10 a。四川盆地有18个站霾日数年变化呈下降的趋势，仅7个站点通过了置信度99％的信度检验，霾日数减少最多的为四川北部广元地区的南江，气候倾向率为－16.7 d／10 a。霾日数的年变化与大气干消光系数呈显著正相关，与风速呈显著负相关，与四川盆地的能源消耗和人口增长呈显著正相关。
이용1961—2010년사천분지122개기상참관측자료，분석료사천분지년평균매일수시공분포특정급매일수계절화년변화추세，탐토료근50 a사천분지대기간소광계수、풍속、능원소모화인구등인소여매일수지간적관계。결과표명：1961—2010년사천분지122개참년평균매일수위62.5 d，매일수최다적참가체10.00 d이상。매일수유명현계절변화，사천분지동계매일수최다（28.4 d），춘계화추계차지，하계최소（5.9 d）。사천분지유104개참매일수년변화정증가적추세，기중유71개참통과료치신도99％적검험，매일수증가최다적위사천성내강지구적척원，기후경향솔위42.0 d／10 a；매일수증가최소적위성도시적신도，기후경향솔위0.4 d／10 a。사천분지유18개참매일수년변화정하강적추세，부7개참점통과료치신도99％적신도검험，매일수감소최다적위사천북부엄원지구적남강，기후경향솔위－16.7 d／10 a。매일수적년변화여대기간소광계수정현저정상관，여풍속정현저부상관，여사천분지적능원소모화인구증장정현저정상관。
Based on observed data from 122 weather stations during 1961 to 2010 in Sichuan basin,temporal and spatial distribution of the number of haze days and its seasonal and annual trends were analyzed.Relationships of the number of haze days with atmospheric extinction coefficients,wind speed,energy consumption and population and so on were discussed.The results indicate that the number of annual mean haze days at 122 weather stations is 62.5 days from 1961 to 2010 in Sichuan Basin,and the maximum could reach above 100 days for a certain station. The number of haze days has a significant seasonal variation,and its maximum occurs in winter with 28.4 days, and then in spring and autumn,and the minimum is in summer with 5.9 days.Annual variation of the number of haze days is in an increasing trend for 104 weather stations in Sichuan basin,and there are 71 weather stations pass-ing a confidence level of 99%.The maximum and minimum increasing rates occur in Qiyuan station with 42.0 days per decade and Xindu station with 0.4 days per decade.On the other hand,annual variation of the number of haze days is in a decreasing trend for 1 8 stations in Sichuan basin,and there are 7 weather stations passing a confi-dence level of 99%.The most significant decreasing rate occurs in Nanjiang station with -16.7 days per decade. Annual variation of the number of haze days is a positive correlation relationship with atmospheric extinction coef-ficients,regional energy consumption and population,and is a negative correlation relationship with wind speed.