干旱区生态环境知识资源中心(Arid): Climatological trends of mean and extreme daily precipitation in Arizona (USA)

Arid

DOI	10.1016/j.jaridenv.2023.105083
	Climatological trends of mean and extreme daily precipitation in Arizona (USA)
	Brandi, A.; Balling, R. C.; Iniguez, P.; Georgescu, M.
通讯作者	Georgescu, M
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2023
卷号	219
英文摘要	Precipitation in Arizona, USA, represents a fundamental resource for the needs of agriculture, people, and the environment. However, due to the risk associated with flash flooding, extreme precipitation also constitutes a natural hazard. Available research on precipitation in Arizona has been limited in scope and focus and there currently exists no comprehensive assessment of statewide, historical, mean, and extreme precipitation. We use daily precipitation records from 43 Global Historical Climate Network daily (GHCNd) weather stations to examine trends in mean and extreme precipitation across Arizona from 1950 to 2020. We use a suite of standardized precipitation indices and explore the statistical significance of historical changes at the annual, monthly, and seasonal scales. Our analysis returns a motley collection of results displaying a great degree of spatial variability and sensitivity to the temporal scale of analysis. Mean total precipitation at the statewide scale underwent a small decreasing trend of 0.15 mm year  1, with considerable interannual variability being a dominant feature. The majority of stations experienced no statistically significant change in extreme precipitation at the annual scale. Monsoon season mean precipitation followed a similar pattern to annual means, with an overall reduction of 0.14 mm year  1 across the state. One fourth of stations, all located at elevations lower than 650 m, recorded decreases in monsoon precipitation intensity. Winter season analysis presents a different picture, displaying a positive statewide trend of 0.11 mm year  1 in mean precipitation. One tenth of stations recorded increases in extreme precipitation intensity and decreases in the number of consecutive dry days. Results of our observational analysis indicate a lack of a clear consensus on the climatological trends of mean/ extreme precipitation in Arizona during the study period. Our findings are in contrast to those from other similarly arid areas across the world and highlight the role of regional differences in modulating the potential hydrometeorological impacts associated with climate change. However, while we do not find widespread, significant, modification in the spectrum of precipitation changes examined, the hydrologic system of the state has been - and will continue to be - impacted by the ongoing temperature increase associated with the buildup of greenhouse gases and continued population growth.
英文关键词	Arizona Extreme precipitation Historical precipitation Observations Regional climate change
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001101327900001
WOS关键词	HISTORICAL CLIMATOLOGY ; MONSOON PRECIPITATION ; ATMOSPHERIC RIVERS ; QUALITY-ASSURANCE ; UNITED-STATES ; PHOENIX ; VARIABILITY ; INDEXES ; JET
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397163
推荐引用方式 GB/T 7714	Brandi, A.,Balling, R. C.,Iniguez, P.,et al. Climatological trends of mean and extreme daily precipitation in Arizona (USA)[J],2023,219.
APA	Brandi, A.,Balling, R. C.,Iniguez, P.,&Georgescu, M..(2023).Climatological trends of mean and extreme daily precipitation in Arizona (USA).JOURNAL OF ARID ENVIRONMENTS,219.
MLA	Brandi, A.,et al."Climatological trends of mean and extreme daily precipitation in Arizona (USA)".JOURNAL OF ARID ENVIRONMENTS 219(2023).