甘肃农业科技
甘肅農業科技
감숙농업과기
GANSU AGRICULTURAL SCIENCE AND TECHNOLOGY
2011年
10期
18-20
,共3页
日照时数%变化特征%云量%雾日数%相对湿度%成县
日照時數%變化特徵%雲量%霧日數%相對濕度%成縣
일조시수%변화특정%운량%무일수%상대습도%성현
Sunlight hour%Change characteristic%Cloud amount%Foggy day%Relative humidity%Chengxian
利用1969—2009年成县日照等观测资料,分析了成县日照时数的年、季、月变化趋势,并分析了其与云量、雾日数、相对湿度的相关性。结果表明,成县41 a的年日照时数总体呈减少趋势,其倾向率为-63.406 h/10a。总云量、雾日数的增加以及相对湿度增大都会导致日照时数的减少。
利用1969—2009年成縣日照等觀測資料,分析瞭成縣日照時數的年、季、月變化趨勢,併分析瞭其與雲量、霧日數、相對濕度的相關性。結果錶明,成縣41 a的年日照時數總體呈減少趨勢,其傾嚮率為-63.406 h/10a。總雲量、霧日數的增加以及相對濕度增大都會導緻日照時數的減少。
이용1969—2009년성현일조등관측자료,분석료성현일조시수적년、계、월변화추세,병분석료기여운량、무일수、상대습도적상관성。결과표명,성현41 a적년일조시수총체정감소추세,기경향솔위-63.406 h/10a。총운량、무일수적증가이급상대습도증대도회도치일조시수적감소。
Using observed data of sunlight hour in Chengxian during 1969-2009, change tendency characteristic of sunlight has analyzed by year, by season and by month. And the relationships between cloud amount, foggy day, relative humidity and sunlight hour have been analysed. The result indicated that the sunshine hours has reduced in 41 year in Chengxian, its tendency rate was - 63.406 h/10 z. And the total cloud cover and foggy day number increase as well as the relative humidity increases can cause the sunshine hours the reduction.