干旱区生态环境知识资源中心(Arid): 基于WRF中国境内土壤湿度-降水耦合强度的诊断

Arid

	基于WRF中国境内土壤湿度-降水耦合强度的诊断
其他题名	Diagnosis of soil moisture-precipitation coupling strength in China using WRF
	刘源 1; 张述文 2; 李少英 2; 曹倩 2
来源期刊	兰州大学学报. 自然科学版
ISSN	0455-2059
出版年	2018
卷号	54 期号:2 页码:160-166
中文摘要	借助中尺度模式WRF,以粗分辨率GLDAS资料统计出的强耦合2000年和弱耦合2005年夏季为代表时段进行高时空分辨率的模拟.结果表明,在周时间尺度内,土壤湿度-降水耦合强度在时间尺度为6 h时最强,除部分区域外,耦合强度随着时间的增加逐渐减弱.较强耦合区基本位于半干旱和半湿润区,包括山东、山西、河北、天津、北京、内蒙古中南部等,与统计结果一致.2000年夏季耦合强于2005年,但强耦合出现的月份以及空间分布均不固定,内蒙古中南部地区始终为中国夏季土壤湿度-降水共同强耦合区.由于时空分辨率的增加,发现一些零星分布的较强耦合区,而GLDAS统计结果中并没有出现.
英文摘要	The mesoscale weather research and forecasting (WRF) model was used during two representative summers of 2000 and 2005 respectively with strong and weak coupling strengths based on global land data assimilation system (GLDAS) data with low spatial and temporal distribution. The derived coupling strength within the weekly time scale was the strongest at the time scale of 6 h and then gradually decreased with increase of time scales except part of the region. The relatively strong coupling regions were located in the semi-arid and semi-humid areas, including Shandong, Shanxi, Hebei, Tianjin, Beijing, and the southern central parts of Inner Mongolia. The coupling strength in the summer of 2000 was generally stronger than that in 2005, which was coincident with the statistical results, but the strong coupling months and the spatial distributions of strong coupling regions were also not fixed. It was found that the south central part of Inner Mongolia was a common strong coupling region between soil moisture and precipitation in summer in China. There were some scattered strong coupling areas due to the increase of the spatial and temporal resolution, which was not found based on analysis of the GLDAS data.
中文关键词	土壤湿度-降水耦合强度 ; 中尺度模式WRF ; 数值试验 ; 高时空分辨率
英文关键词	soil moisture-precipitation coupling strength mesoscale model weather research and forecasting numerical experiment high spatiotemporal resolution
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:6238354
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/237901
作者单位	1.兰州大学大气科学学院;;中国民用航空青岛空中交通管理站, 甘肃省干旱气候变化与减灾重点实验室;;, 兰州;;青岛, ;;山东 730000;;266100; 2.兰州大学大气科学学院, 甘肃省干旱气候变化与减灾重点实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	刘源,张述文,李少英,等. 基于WRF中国境内土壤湿度-降水耦合强度的诊断[J]. 兰州大学,2018,54(2):160-166.
APA	刘源,张述文,李少英,&曹倩.(2018).基于WRF中国境内土壤湿度-降水耦合强度的诊断.兰州大学学报. 自然科学版,54(2),160-166.
MLA	刘源,et al."基于WRF中国境内土壤湿度-降水耦合强度的诊断".兰州大学学报. 自然科学版 54.2(2018):160-166.