气候变化领域集成服务门户(CCPortal): Can southern Australian rainfall decline be explained? A review of possible drivers

CCPortal

DOI	10.1002/wcc.820
	Can southern Australian rainfall decline be explained? A review of possible drivers
	McKay, Roseanna C.; Boschat, Ghyslaine; Rudeva, Irina; Pepler, Acacia; Purich, Ariaan; Dowdy, Andrew; Hope, Pandora; Gillett, Zoe E.; Rauniyar, Surendra
发表日期	2023
ISSN	1757-7780
EISSN	1757-7799
卷号	14 期号:2 页码:24
英文摘要	Southern Australia's rainfall is highly variable and influenced by factors across scales from synoptic weather to large-scale circulation and remote climate modes of variability. Anthropogenic climate change and natural variability modulate these factors and their interactions. However, studies often focus on changes in selected parts of the climate system with less emphasis on the system as a whole. As such, it is difficult to gain a complete understanding of how southern Australia's rainfall responds to broad-scale changes in the climate system. We step through the existing literature on long-term changes in synoptic-to-large-scale atmospheric circulation and drivers of climate variability to form a more complete story of rainfall changes across southern Australia. This process reveals that the most robust change is the observed winter decline in rainfall as it is consistent with several changing climatic factors: decreasing rainfall from weather systems, strengthening subtropical ridge, poleward shifts in the Hadley Cell and the Southern Annular Mode, and increasing frequency of positive Indian Ocean Dipole events. In other seasons, particularly summer, changes in atmospheric circulation and drivers may not agree with observed rainfall changes, highlighting gaps in our knowledge of atmospheric dynamics and climate change processes. Future work should focus on research across temporal- and spatial-scales, better understanding of jet interactions, the influence of stratospheric processes on the troposphere, and instances of contrasting trends in drivers and southern Australian rainfall changes.This article is categorized under:Paleoclimates and Current Trends > Modern Climate ChangePaleoclimates and Current Trends > Detection and AttributionAssessing Impacts of Climate Change > Observed Impacts of Climate Change
英文关键词	atmospheric circulation; attribution; Australia; climate drivers; rainfall trends
学科领域	Environmental Studies; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000918266600001
来源期刊	WILEY INTERDISCIPLINARY REVIEWS-CLIMATE CHANGE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/272917
作者单位	Bureau of Meteorology - Australia; Bureau of Meteorology - Australia; Monash University; University of New South Wales Sydney
推荐引用方式 GB/T 7714	McKay, Roseanna C.,Boschat, Ghyslaine,Rudeva, Irina,et al. Can southern Australian rainfall decline be explained? A review of possible drivers[J],2023,14(2):24.
APA	McKay, Roseanna C..,Boschat, Ghyslaine.,Rudeva, Irina.,Pepler, Acacia.,Purich, Ariaan.,...&Rauniyar, Surendra.(2023).Can southern Australian rainfall decline be explained? A review of possible drivers.WILEY INTERDISCIPLINARY REVIEWS-CLIMATE CHANGE,14(2),24.
MLA	McKay, Roseanna C.,et al."Can southern Australian rainfall decline be explained? A review of possible drivers".WILEY INTERDISCIPLINARY REVIEWS-CLIMATE CHANGE 14.2(2023):24.