摘要
利用全国1960～2005年的日照观测资料,采用气候学计算方法对我国的太阳直接辐射进行了估算,给出了最新的直接辐射资源气候分布图,并对近50年来资源的时空变化特征进行了分析。研究结果表明:"高原大于平原,西部干旱区大于东部湿润区"是我国直接辐射分布的基本态势,"强处更强,愈强愈稳"是我国直接辐射资源时空变化的主要特征。20世纪60～80年代,我国直接辐射资源总体呈减少趋势,但是自90年代起,下降趋势停止,甚至略有增加。
An assessment of solar direct radiation over China was conducted based on dataset of monthly direct radiation and sunshine duration from 1960 to 2005, from which, a latest map of direct radiation was derived, with a detailed discussion of its temporal and spatial changes over recent 50 years. The results recommend that solar direct radiation resource over plateau and west arid regions is richer than which over resource-richer places on the basis of annual change. The national obvious decreasing trend from 1960s to 1980s, and at the begging plain and east humid areas, and it is more stable over averaged time series of solar direct radiation showed an of 1990s, the decline ceased, followed by a slight increase to some extent. However, the resources have been continuously getting stronger over some certain areas of energyrich part during the past several decades. The features mentioned above are very favorable for developing solar energy application in China.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2009年第7期946-952,共7页
Acta Energiae Solaris Sinica
关键词
太阳能资源
直接辐射
评估
分布
变化
solar energy resource
direct radiation
assessment
distribution
change
