干旱区生态环境知识资源中心(Arid): Changes of temperature and precipitation extremes in a typical arid and semiarid zone: Observations and multi-model ensemble projections

Arid

DOI	10.1002/joc.6510
	Changes of temperature and precipitation extremes in a typical arid and semiarid zone: Observations and multi-model ensemble projections
	Zhao, Cuiping 1; Gong, Jiaguo 1,2; Wang, Hao 1,2; Wei, Sujuan 3; Song, Qiang 4; Zhou, Yuyan 1
通讯作者	Zhao, Cuiping
来源期刊	INTERNATIONAL JOURNAL OF CLIMATOLOGY
ISSN	0899-8418
EISSN	1097-0088
出版年	2020
卷号	40 期号:12 页码:5128-5153
英文摘要	The spatiotemporal changes of temperature and precipitation extremes in a typical arid and semiarid zone (Gansu Province, China) were investigated, including the latest observations (1960-2016) and the National Aeronautics and Space Administration Earth Exchange Global Daily Downscaled Projections (NEX-GDDP) dataset that provides statistically downscaled Coupled Model Inter-comparison Project Phase 5 (CMIP5) future climate projections (2017-2099) based on the Mann-Kendall test, linear regression, 5-year smoothed average and Bayesian model average (BMA) methods. The results show the following: (a) Apart from a slight decrease of diurnal temperature range (DTR), other temperature extreme indices presented significant trends over 1960-2016. Annual regional nighttime temperature increased at a faster rate than daytime temperature. In the seasonal series, cool nights (TN10p) and cool days (TX10p) showed significant decreases and warm nights (TN90p) and warm days (TX90p) significantly increased in all seasons. (b) Precipitation extreme indices showed decreasing trends, except for the max 1-day precipitation (RX1DAY) and simple daily intensity index (SDII) with a weaker coherence of spatial patterns. From the perspective of spatial characteristics, the western area had an increasing trend of total precipitation while the east had a significant decreasing trend. In the seasonal series, a significant increase of RX1DAY and the max 5-day precipitation (RX5DAY) was found in winter, as compared with spring, summer and autumn. (c) Positive trends in warm indices (i.e., summer days, tropical days, warm nights and warm days) and negative trends in cold indices (i.e., frost days, ice days, cool nights and cool days) can be observed in the 21st century. A slightly decreasing consecutive dry days (CDD), together with obviously increasing heavy precipitation days (R10), extremely wet days (R99p), RX5DAY and SDII, suggests more extreme precipitation for 2017-2099. The results are of practical use in improving regional strategies for water resources and eco-environment management, especially for arid and semiarid regions.
英文关键词	observations projections spatiotemporal change temperature and precipitation extremes typical arid and semiarid zone
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000514263500001
WOS关键词	YELLOW-RIVER BASIN ; CLIMATE-CHANGE PROJECTIONS ; TEMPORAL VARIABILITY ; AIR-TEMPERATURE ; NORTHWEST CHINA ; ANTHROPOGENIC HEAT ; OBSERVED TRENDS ; GANSU PROVINCE ; REGION ; URBANIZATION
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314747
作者单位	1.China Inst Water Resources & Hydropower Res, Dept Water Resources, A-1 Yuyuantan South Rd, Beijing 100038, Peoples R China; 2.China Inst Water Resources & Hydropower Res, State Key Lab Simulat & Regulat Water Cycle River, Beijing, Peoples R China; 3.Gansu Acad Environm Sci, Lanzhou, Gansu, Peoples R China; 4.Gansu Prov Meteor Bur, Lanzhou Cent Meteorol Observ, Lanzhou, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Cuiping,Gong, Jiaguo,Wang, Hao,et al. Changes of temperature and precipitation extremes in a typical arid and semiarid zone: Observations and multi-model ensemble projections[J],2020,40(12):5128-5153.
APA	Zhao, Cuiping,Gong, Jiaguo,Wang, Hao,Wei, Sujuan,Song, Qiang,&Zhou, Yuyan.(2020).Changes of temperature and precipitation extremes in a typical arid and semiarid zone: Observations and multi-model ensemble projections.INTERNATIONAL JOURNAL OF CLIMATOLOGY,40(12),5128-5153.
MLA	Zhao, Cuiping,et al."Changes of temperature and precipitation extremes in a typical arid and semiarid zone: Observations and multi-model ensemble projections".INTERNATIONAL JOURNAL OF CLIMATOLOGY 40.12(2020):5128-5153.