气候变化领域集成服务门户(CCPortal): Atmospheric Rivers in the Eastern and Midwestern United States Associated With Baroclinic Waves

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DOI	10.1029/2023GL107236
	Atmospheric Rivers in the Eastern and Midwestern United States Associated With Baroclinic Waves
	O'Brien, Travis A.; Loring, Burlen; Dufek, Amanda Sabatini; Islam, Mohammad Rubaiat; Kamnani, Diya; Quagraine, Kwesi Twentwewa; Kirkpatrick, Cody
发表日期	2024
ISSN	0094-8276
EISSN	1944-8007
起始页码	51
结束页码	8
卷号	51 期号:8
英文摘要	Atmospheric rivers (ARs) significantly impact the hydrological cycle and associated extremes in western continental regions. Recent studies suggest ARs also influence water resources and extremes in continental interiors. AR detection tools indicate that AR conditions are relatively frequent in areas east of the Rocky Mountains. The origin of these ARs, whether from synoptic-scale waves or mesoscale processes, is unclear. This study uses meteorological composite maps and transects of AR conditions during the four seasons. The analysis reveals that ARs east of the Rockies are associated with long-wave, baroclinic Rossby waves. This result demonstrates that eastern North American ARs are dynamically similar to their western coastal counterparts, though mechanisms for vertical moisture flux differ between the two. These findings provide a foundation for understanding future climate change and ARs in this region and offer new methods for evaluating climate model simulations. Atmospheric rivers (ARs) are a weather pattern that brings high amounts of atmospheric water and winds in a relatively narrow region. ARs are typically considered a west coast phenomenon, largely because the majority of the scientific research on ARs has focused on ARs in western coastal regions: particularly the western United States (US). ARs occur in continental interiors, but there has been some debate about whether these ARs represent the same type of weather as those in western coastal regions. This paper uses two objective methods for identifying ARs and finds times when ARs are present in three locations in the eastern half of the US: Norman, OK, Bloomington, IN, and Washington, DC. Examination of weather conditions during these AR times shows remarkable similarity to conditions associated with west coast ARs. This gives strong evidence that ARs do occur in the eastern half of the US. This result is important because it suggests that ARs may be important for water resources and extreme weather in the eastern half of the US, just as they are in the western US. This result also suggests that ARs may be important for water resources and extremes in other continental interiors. Atmospheric rivers (ARs) east of the Rockies are associated with baroclinic waves Western coastal ARs and eastern/midwest ARs are dynamically similar Synoptic-scale uplift, combined with convective instability, provide efficient mechanisms for generating precipitation
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:001201400300001
来源期刊	GEOPHYSICAL RESEARCH LETTERS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/292307
作者单位	Indiana University System; Indiana University Bloomington; United States Department of Energy (DOE); Lawrence Berkeley National Laboratory; United States Department of Energy (DOE); Lawrence Berkeley National Laboratory; Nvidia Corporation; United States Department of Energy (DOE); Lawrence Berkeley National Laboratory; National Center Atmospheric Research (NCAR) - USA
推荐引用方式 GB/T 7714	O'Brien, Travis A.,Loring, Burlen,Dufek, Amanda Sabatini,et al. Atmospheric Rivers in the Eastern and Midwestern United States Associated With Baroclinic Waves[J],2024,51(8).
APA	O'Brien, Travis A..,Loring, Burlen.,Dufek, Amanda Sabatini.,Islam, Mohammad Rubaiat.,Kamnani, Diya.,...&Kirkpatrick, Cody.(2024).Atmospheric Rivers in the Eastern and Midwestern United States Associated With Baroclinic Waves.GEOPHYSICAL RESEARCH LETTERS,51(8).
MLA	O'Brien, Travis A.,et al."Atmospheric Rivers in the Eastern and Midwestern United States Associated With Baroclinic Waves".GEOPHYSICAL RESEARCH LETTERS 51.8(2024).