CAJ | 학술논문

分析了河西走廊1980～2010年一日大风持续时间的气候特征。结果表明：河西走廊一日大风平均和最长持续时间的空间分布特征与大风日数基本一致，总体上自东向西、自南向北增多，且随海拔高度的升高而增多。全区年大风平均持续时间在7～207 min之间，平均为65 min。大风一日最长持续时间是1390 min。酒泉市大部、永昌、民勤和乌鞘岭年大风平均和最长持续时间偏长，其余地方偏短。各季大风平均和最长持续时间，春季最长、冬季次长、夏季最短、秋季次短。年一日大风持续时间的频率为偏态分布，在0～2 h的累积频率为0．67。风速偏小站大风的持续时间基本为0～12 h，风速偏大站大风的持续时间在12～24 h，这说明风速越大，大风的持续时间越长。
분석료하서주랑1980～2010년일일대풍지속시간적기후특정。결과표명：하서주랑일일대풍평균화최장지속시간적공간분포특정여대풍일수기본일치，총체상자동향서、자남향북증다，차수해발고도적승고이증다。전구년대풍평균지속시간재7～207 min지간，평균위65 min。대풍일일최장지속시간시1390 min。주천시대부、영창、민근화오초령년대풍평균화최장지속시간편장，기여지방편단。각계대풍평균화최장지속시간，춘계최장、동계차장、하계최단、추계차단。년일일대풍지속시간적빈솔위편태분포，재0～2 h적루적빈솔위0．67。풍속편소참대풍적지속시간기본위0～12 h，풍속편대참대풍적지속시간재12～24 h，저설명풍속월대，대풍적지속시간월장。
Based on the minutely gale duration at 19 weather stations in Hexi Corridor during 1980-2010,the climate characteristics of daily gale duration on the strong wind days were analyzed.The results indicated that the spatial distribution of average and longest daily duration of gale was basically in accord with the gale days.As a whole,the daily duration of gale increased from east to west and from south to north,and increased with increase in altitude.With respect to annual character,the average daily duration of gale was be-tween 7 to 207 minutes,and the mean value was 65 minutes in whole region of Hexi Corridor.The longest daily duration of gale was 1 390 minutes,and which in Minqin,Jiuquan,Yongchang and Wushaoling was relatively longer than that in the other regions.In four seasons,the average and longest daily duration of gale in spring,winter,fall,and summer reduced in turn.The frequency distribution of the daily duration of gale was abnormal.The cumulative frequency of gale daily duration between 0 to 2 hours was 0.67.The daily duration of gale at the stations with a small wind speed was generally 0 to 12 hours,while that of the stations with a large wind speed was 12 to 24 hours.Thus it can be seen that the daily duration of the gale was longer as the wind speed became larger.