干旱区生态环境知识资源中心(Arid): 1961年至2007年中国日照的演变及其关键气候特征

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	1961年至2007年中国日照的演变及其关键气候特征
其他题名	Long-Term Changes and Essential Climatic Characteristics of Sunshine Duration over China during 1961-2007
	赵东 1; 罗勇 2; 高歌 2; 祝昌汉 2; 申彦波 2
来源期刊	资源科学
ISSN	1007-7588
出版年	2010
卷号	32 期号:4 页码:701-711
中文摘要	利用全国1961年--2007年的日照时数资料, 依据各站日照时数长期变化线性倾向率的大小, 采用聚类分析方法, 将全国分为11个区, 详细讨论了我国日照长期变化的特征及其成因. 结果表明: 我国日照总体呈下降趋势, 且具有明显的季节和局地差异, 夏季和冬季下降最明显, 下降主要发生在我国东部及南方大部分地区, 其中以华北平原降幅最大. 1993年后, 日照由"显著下降"转为"略有回升", 但不同区域、不同季节对该逆转的贡献明显不同. 初步认为, 大气污染(气候湿润化)是造成我国东部(西部)日照下降的主要原因, 主要表现为轻雾和霾 (低云和水汽)的增加. 对最近30年来我国日照的气候特征也进行了分析, 为太阳能开发利用提供最新科学数据和开发建议
英文摘要	Based on the linear tendency analysis for time series of sunshine duration from 756 key meteorological stations in China during 1961 to 2007 and the similarity thereof, China was divided into 11 sub-regions by using clustering analysis methods, from which, main characteristics of the long-term changes in sunshine duration and its spatial and seasonal differences were reasonably detected and analyzed. Results indicated that the sunshine duration decreased obviously and universally over China, showing apparent seasonal and regional characteristics. National averaged time series decreased at a rate of 3.97 h/a over the past 47 years, and the decreases were more significant in summer and winter at a rate of 1.60 h/a and 1.10 h/a, respectively. As for the sub-region basis,it declined dramatically in Eastern and Southern China, especially in the North China Plain,i.e.,at a rate of up to 11.55 h/a. Factors leading to the decreases in sunshine duration varied greatly over different regions. In general,in the east part of China exhibiting more intensifying human activities, the decreasing trends might be ascribed to air pollution characterized primarily by the increases in haze and/or mist days. In the west part, however, the decrease trends occurred mainly because of a change in climate pattern from dry to wet, which corresponded to the increases in low cloud amount and water vapor. After the year 1993, the decline in the national averaged time series ceased, and followed by a slight increase to some extent. This could be considered an advantage for solar energy applications in China. Still, different regions and seasons showed different levels of contributions. On the regional basis, the increases only happened in certain areas,e.g., North Xinjiang, north areas of Northeast China and most parts of Southern China. On the seasonal basis, the increases in sunshine duration were only shown over certain seasons,e.g., spring and summer. Further more, the latest maps related to solar energy applications were derived, with a detailed discussion about their essential climatic characteristics over recent 30 years. Results indicated that the sunshine duration over plateaus and west arid regions are more adequate than that over plains and east humid areas, showing a more stable magnitude. All these characteristics are closely related to atmospheric circulation and atmospheric environment. At last, some suggestions on solar energy applications were also provided
中文关键词	中国 ; 太阳能资源 ; 日照 ; 聚类分析 ; 气候变化 ; 原因 ; 时空分布
英文关键词	China Solar energy resources Sunshine duration Cluster analysis Climate change Causes Temporal and spatial distribution
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:3962611
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/226105
作者单位	1.南京信息工程大学大气科学学院, 国家气候中心;;中国气象局风能太阳能资源评估中心, 南京, 江苏 210044, 中国; 2.国家气候中心, 国家气候中心;;中国气象局风能太阳能资源评估中心, 北京 100081, 中国
推荐引用方式 GB/T 7714	赵东,罗勇,高歌,等. 1961年至2007年中国日照的演变及其关键气候特征[J],2010,32(4):701-711.
APA	赵东,罗勇,高歌,祝昌汉,&申彦波.(2010).1961年至2007年中国日照的演变及其关键气候特征.资源科学,32(4),701-711.
MLA	赵东,et al."1961年至2007年中国日照的演变及其关键气候特征".资源科学 32.4(2010):701-711.