Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-018-4223-2 |
Dynamical analysis of extreme precipitation in the US northeast based on large-scale meteorological patterns | |
Agel, Laurie1,2; Barlow, Mathew1,3; Colby, Frank1; Binder, Hanin4,5; Catto, Jennifer L.6; Hoell, Andrew7; Cohen, Judah8 | |
2019-02-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2019 |
卷号 | 52页码:1739-1760 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Switzerland; France; England |
英文摘要 | Previous work has identified six large-scale meteorological patterns (LSMPs) of dynamic tropopause height associated with extreme precipitation over the Northeast US, with extreme precipitation defined as the top 1% of daily station precipitation. Here, we examine the three-dimensional structure of the tropopause LSMPs in terms of circulation and factors relevant to precipitation, including moisture, stability, and synoptic mechanisms associated with lifting. Within each pattern, the link between the different factors and extreme precipitation is further investigated by comparing the relative strength of the factors between days with and without the occurrence of extreme precipitation. The six tropopause LSMPs include two ridge patterns, two eastern US troughs, and two troughs centered over the Ohio Valley, with a strong seasonality associated with each pattern. Extreme precipitation in the ridge patterns is associated with both convective mechanisms (instability combined with moisture transport from the Great Lakes and Western Atlantic) and synoptic forcing related to Great Lakes storm tracks and embedded shortwaves. Extreme precipitation associated with eastern US troughs involves intense southerly moisture transport and strong quasi-geostrophic forcing of vertical velocity. Ohio Valley troughs are associated with warm fronts and intense warm conveyor belts that deliver large amounts of moisture ahead of storms, but little direct quasi-geostrophic forcing. Factors that show the largest difference between days with and without extreme precipitation include integrated moisture transport, low-level moisture convergence, warm conveyor belts, and quasi-geostrophic forcing, with the relative importance varying between patterns. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000460902200026 |
WOS关键词 | WARM CONVEYOR BELTS ; LAGRANGIAN-BASED ANALYSIS ; POTENTIAL VORTICITY ; EXTRATROPICAL CYCLONES ; WEATHER REGIMES ; EVENTS ; CLIMATOLOGY ; FRONTS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/35235 |
专题 | 气候变化 |
作者单位 | 1.Univ Massachusetts, Dept Environm Earth & Atmospher Sci, One Univ Ave, Lowell, MA 01854 USA; 2.Univ Massachusetts Lowell, Intercampus Marine Sci Grad Program, Lowell, MA 01854 USA; 3.Univ Massachusetts Lowell, Climate Change Initiat, Lowell, MA USA; 4.Swiss Fed Inst Technol, Inst Atmospher & Climate Sci, Zurich, Switzerland; 5.Ecole Normale Super, Lab Meteorol Dynam IPSL, Paris, France; 6.Univ Exeter, Coll Engn Math & Phys Sci, Exeter, Devon, England; 7.NOAA, ESRL, Phys Sci Div, Boulder, CO USA; 8.Atmospher & Environm Res, Lexington, MA USA |
推荐引用方式 GB/T 7714 | Agel, Laurie,Barlow, Mathew,Colby, Frank,et al. Dynamical analysis of extreme precipitation in the US northeast based on large-scale meteorological patterns[J]. CLIMATE DYNAMICS,2019,52:1739-1760. |
APA | Agel, Laurie.,Barlow, Mathew.,Colby, Frank.,Binder, Hanin.,Catto, Jennifer L..,...&Cohen, Judah.(2019).Dynamical analysis of extreme precipitation in the US northeast based on large-scale meteorological patterns.CLIMATE DYNAMICS,52,1739-1760. |
MLA | Agel, Laurie,et al."Dynamical analysis of extreme precipitation in the US northeast based on large-scale meteorological patterns".CLIMATE DYNAMICS 52(2019):1739-1760. |
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