摘要
利用1961—2020年河西走廊3个太阳辐射站和19个气象站资料,推算河西走廊各站太阳总辐射量,得出该地区太阳总辐射空间分布和时间变化特征,进一步采用相关系数法分析了太阳总辐射的气候影响因素。结果表明:(1)太阳总辐射空间分布在年及春、夏、秋季呈西北向东南递减,冬季呈西北向东南增加。(2)太阳总辐射在月际和季节分布上呈单峰型,5月最强,12月最弱,夏季最强,冬季最弱。(3)年太阳总辐射呈增加趋势,其线型倾向率为6.3 MJ/(m^(2)·10 a),其中夏、秋、冬季总辐射呈减少趋势,夏季下降最明显,而春季呈明显增加趋势。(4)年、季总辐射都表现出2~3、5~6 a短周期及8~10 a长周期振荡。(5)太阳总辐射量与相对湿度、降水量、总云量、低云量及浮尘、扬沙、沙尘暴日数总体呈负相关,与气温和日照时数呈正相关。(6)河西走廊太阳能资源丰富程度和稳定度表现一致,都呈现为由西北向东南递减的趋势,资源相对丰富的地区稳定度也相对较高。
Using the data of 3 solar radiation stations and 19 meteorological stations during 1961-2020 in the Hexi Corridor,the total solar radiation of each station was calculated,the spatial distribution and temporal variation characteristics of the total solar radiation in this area were obtained,and the climate influencing factors of the total solar radiation were analyzed by correlation coefficient method.The results showed that:(1)The spatial distribution of total solar radiation decreased from northwest to southeast in time scales of annual,spring,summer and autumn,but increased from northwest to southeast in winter.(2)The solar radiation was unimodal in interlunar and seasonal distribution,with the strongest in May,weakest in December,strongest in summer and weakest in winter.(3)The annual solar radiation had an increasing trend,and its linear trendency rate was 6.3 MJ/(m^(2)·10 a),among which the total radiation in summer,autumn and winter showed a decreasing trend,the most obvious decreasing trend was in summer,but showed an obvious increasing trend in spring.(4)The total radiation of year and quarter both showed a short cycle of 2-3,5-6 a and 8-10 a long cycle shock.(5)The solar radiation was negatively correlated with relative humidity,precipitation,total cloud cover,low cloud cover and the days of floating dust,flying sand and sandstorm,but positively correlated with temperature and hours of sunshine.(6)The abundance and stability of solar energy resources were consistent,both showed a decreasing trend from northwest to southeast,and the stability of relatively rich areas was also relatively high.
作者
王博
李玲萍
夏权
姚玉壁
胡丽莉
刘明春
WANG Bo;LI Lingping;XIA Quan;YAO Yubi;HU Lili;LIU Mingchun(Lanzhou Resources&Environment Voc-Tech University,Lanzhou 730021,China;Gulang Meteorological Bureau,Gulang 733199,China;Wuwei National Climate Observatory,Wuwei 733000,China)
出处
《沙漠与绿洲气象》
2023年第6期147-153,共7页
Desert and Oasis Meteorology
基金
2020年度甘肃省高等学校产业支撑引导项目(2020C-34)
2020年度干旱气象科学研究基金项目(IAM202009)
2020年度甘肃省气象局面上项目(MsCg2020-20)
武威市自然科学基金(WW2201RPZ025)。
关键词
太阳总辐射
时空分布特征
太阳能资源评估
河西走廊
total solar radiation
spatial and temporal distribution characteristics
solar energy resources assessment
Hexi Corridor
