干旱区生态环境知识资源中心(Arid): 中国西北地区冰雹的气候特征及异常研究

Arid

	中国西北地区冰雹的气候特征及异常研究
其他题名	Studies on Climatic Characteristic and Anomaly of Hail in Northwest China
	刘德祥 1; 白虎志 1; 董安祥 2
来源期刊	高原气象
ISSN	1000-0534
出版年	2004
卷号	23 期号:6 页码:795-803
中文摘要	选取西北地区均匀分布的85个地面测站1961-2001年冰雹资料,分析了降雹的空间分布和年、日变化及持续时间.结果表明,西北地区冰雹与地形、海拔高度有密切关系,具有明显的局地性.其自然正交函数分解(EOF),主要表现为干旱区、高原区等空间差异(LV).旋转自然正交函数分解(REOF)表明,旋转载荷向量场(RLV)反映了8个主要降雹异常类型区.旋转主分量(RPC)揭示了近41年来西北地区冰雹日数时间演变特征:北疆、南疆和秦岭南部年冰雹日数总体呈多雹-少雹-多雹趋势; 柴达木盆地和青藏高原东北侧总体呈少雹-多雹-少雹趋势; 天山、青藏高原东南部、河套南部总体呈减少趋势.
英文摘要	Using the hail data of 85 surface observation stations in Northwest China from 1961 to 2001, the spatial distribution, annual and day changes, and duration of hail shooting were analyzed. Th-e results showed that hail in Northwest China closely correlated with topography and sea level elevation, which have obviously the local and dispersive characters. The result of EOF indicated that there are actu-ally spatial difference between arid, plateau and other areas. There 8 main anomaly patterns of hail shoot-ing areas were partitioned respectively in RLV by the method of REOF, The results of RPC revealed the temporal evolution properties of the daily numbers of hail in Northwest China in recent 41 years were that: The daily numbers of annual hail stream was total more-less-more trends in Northern and Southern Xin-jiang, and South Qinling Mountain; and one in Caidamu Basin and Northeastern Qingzang Plateau, for less-more-less trends, while gradually decrease trend in Tianshan Mountain, Southeastern Qinghai-Xizang Plateau and Southern Hetao region.
中文关键词	西北地区 ; 冰雹特征 ; 冰雹异常类型 ; 自然正交函数分解
英文关键词	Northwest China Hail characteristic Anomaly hail pattern REOF
语种	中文
国家	中国
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:1793881
来源机构	中国气象局兰州干旱气象研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/205180
作者单位	1.兰州中心气象台, 兰州, 甘肃 730020, 中国; 2.中国气象局兰州干旱气象研究所, 兰州, 甘肃 730020, 中国
推荐引用方式 GB/T 7714	刘德祥,白虎志,董安祥. 中国西北地区冰雹的气候特征及异常研究[J]. 中国气象局兰州干旱气象研究所,2004,23(6):795-803.
APA	刘德祥,白虎志,&董安祥.(2004).中国西北地区冰雹的气候特征及异常研究.高原气象,23(6),795-803.
MLA	刘德祥,et al."中国西北地区冰雹的气候特征及异常研究".高原气象 23.6(2004):795-803.