globalchange  > 气候变化与战略
CSCD记录号: CSCD:5212427
论文题名:
基于云模型的江河源区降雨时空分布特征分析
其他题名: Spatial-temporal Distribution of Precipitation in Source Regions of Yangtze River and Yellow River Based on Cloud Model
作者: 詹存; 梁川; 赵璐; 牛凯杰
刊名: 长江科学院院报
ISSN: 1001-5485
出版年: 2014
卷: 31, 期:8, 页码:1195-1203
语种: 中文
中文关键词: 降雨 ; 云模型 ; 江河源区 ; 时空分布 ; 均匀 ; 稳定性
英文关键词: precipitation ; cloud model ; source regions of Yangtze River and Yellow River ; spatial-temporal distribution ; uniformity ; stability
WOS学科分类: METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向: Meteorology & Atmospheric Sciences
中文摘要: 根据青藏高原江河源区7个气象站点1960-2012年的月降雨资料,基于云模型,分析了该区域降雨的时空分布特征。结果表明:长江源区平均降雨量均小于同时期黄河源区的降雨量;全年、非汛期和月的降雨量比黄河源区集中且稳定,汛期降雨虽比黄河源区集中,但不如黄河源区稳定。江河源区全年降雨比非汛期、汛期和月均降雨量最为分散且最不稳定;非汛期降雨量虽最小,但最集中且最稳定。江河源区汛期和非汛期降雨量和降雨量的熵在空间上分布相似,均表现出了从东南到西北逐渐递减的规律;降雨量的超熵在空间上规律不明显,值得注意的是沱沱河、达日和曲麻莱非汛期和汛期降雨量的超熵显示出了相反的特征。研究成果能为江河源区气候变化研究提供科学参考。
英文摘要: Cloud model was used to analyze the spatial-temporal distributions of precipitation based on monthly precipitation data (1960-2012) from 7 stations in source regions of Yangtze River and Yellow River. Results indicate that: the average precipitation in the source region of Yangtze River was smaller than that of Yellow River in the same period, but annual, monthly and non-flood-season precipitation in this region were more concentrated and stable than those in Yellow River. Annual precipitation was more than monthly, flood-season and non-flood-season precipitation, but it was also the most decentralized and unstable; while precipitation in non-flood season was the smallest, it was also the most concentrated and stable. Precipitation as well as its entropy in source regions of Yangtze River and Yellow River during wet and dry seasons gradually decreased from southeast to northwest. Hyper entropy of precipitation was not regular in space, but it showed opposite characteristics in wet and dry seasons in Tuotuohe, Dari and Qumalai. This research could provide scientific reference for the study of climate change in the source regions of Yangtze River and Yellow River.
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/148619
Appears in Collections:气候变化与战略

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作者单位: 四川大学水利水电学院, 水力学与山区河流开发保护国家重点实验室, 成都, 四川 610065, 中国

Recommended Citation:
詹存,梁川,赵璐,等. 基于云模型的江河源区降雨时空分布特征分析[J]. 长江科学院院报,2014-01-01,31(8):1195-1203
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