摘要
利用乐亭国家基本气象站1993~2012年逐月太阳总辐射、月日照百分率数据,以及1973~2022年廊坊市9个国家基本气象站的月日照百分率资料,应用Angstrom-Prescott公式估算太阳总辐射,采用最小二乘法、趋势分析、克里金插值等方法对廊坊市太阳能资源进行综合评估分析。结果表明,近50a廊坊市太阳总辐射在5039.4~5411.9MJ/m^(2)之间,且呈现下降趋势,空间分布南高北低;各站平均年日照时数和太阳总辐射变化趋势基本一致,均呈下降趋势;日照时数和太阳总辐射年代际变化呈单谷型,进入21世纪后呈现增长趋势;除永清县外太阳能资源均为“很丰富”等级,能满足开发利用的需求;廊坊市太阳能资源稳定度均为一般等级,近50a中各站有3~10a的稳定等级;近50a日照时数>6h的天数在198~283d,平均239d。廊坊市太阳能资源总体较好,可以进行合理开发利用。
Based on the monthly total solar radiation and monthly sunshine percentage data from Laoting National Basic Meteorological Station from 1993 to 2012 and the monthly sunshine percentage data from 9 na-tional basic meteorological stations in Langfang City from 1973 to 2022,Angstrom-Prescott equation is used to estimate the total solar radiation,and least square method,trend analysis and Kriging interpolation method are used to comprehensively evaluate and analyze the solar energy resources in Langfang City.The results show that the total solar radiation in Langfang City in the past 50 years has been between 5039.4 and5411.9MJ·m-2,with a downward trend,and the spatial distribution is high in the south and low in the north;the trends of the average annual sunshine hours and total solar radiation at each station are basically the same,showing a decreasing trend;the interdecadal changes in the sunshine hours and total solar radiation are in the shape of single valley,showing a growth trend after entering the 21st century;except for Yongqing County,the solar energy resources are classified as"very abundant"and can meet the needs of development and utilization;the stability of solar energy resource in Langfang City is of the average level,and in the past50 years,each station has a stability of 3 to 10 years;in the recent 50 years,the number of days with sunlight hours greater than 6 hours is 198 to 283 days,with an average of 239 days.In summary,the solar energy resources in Langfang City are relatively good and can be reasonably developed and utilized.
作者
王亚明
吕厚铖
Wang Yaming;Lv Houcheng(Dacheng County Meleorological Bureau,Langfang Hebei 065900)
出处
《中外能源》
CAS
2023年第9期25-29,共5页
Sino-Global Energy
关键词
太阳能资源
太阳总辐射
日照时数
空间分布
稳定度
廊坊市
solar energy resources
total solar radiation
sunlight hours
spatial distribution
stability
Langfang City
