DOI: 10.1007/s11069-020-04354-5
论文题名: Synoptic climatology of nuisance flooding along the Atlantic and Gulf of Mexico coasts, USA
作者: Vega A.J. ; Miller P.W. ; Rohli R.V. ; Heavilin J.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2021
卷: 105, 期: 2 起始页码: 1281
结束页码: 1297
语种: 英语
中文关键词: Climate change
; Climate variability
; Coastal flooding
; Gulf of Mexico coast
; Natural hazards
; Nuisance flooding
; Synoptic climatology
; U.S. Atlantic coast
英文关键词: atmospheric circulation
; climate change
; climatology
; flooding
; natural hazard
; oceanic current
; sea level change
; synoptic meteorology
; Atlantic Coast [North America]
; Atlantic Ocean
; Gulf of Mexico
; United States
英文摘要: Nuisance flooding (NF; also known as high-tide, or “sunny day” flooding) is an increasingly prevalent phenomenon afflicting coastal developments worldwide. NF often results when high tides, exacerbated by global sea level rise, coincide with onshore-directed surface winds. The elevated tidal condition, compounded by frictionally forced ocean currents, then inundates coastal infrastructure, posing a non-life-threatening inconvenience for local residents. Even though NF events are formed by a coupling of atmospheric and oceanic conditions, the large-scale atmospheric circulations favorable for NF have received little attention. Using a 40 year NF database derived from coastal gauge data, this study identifies the mid-tropospheric synoptic atmospheric patterns within days of NF events along the Atlantic and Gulf of Mexico coasts of the USA. ERA-Interim reanalysis supplies 500 hPa geopotential height patterns over North America that coincide with NF events. Subsequently, a principal components analysis is performed upon all NF-associated 500 hPa patterns, disaggregated by region (New England, Mid-Atlantic, and Gulf Coast), to identify dominant intra-variability NF-related circulations. Consistent with prior work, results show that NF frequency is increasing with time. Further, each region is characterized by a unique set of dominant NF synoptic patterns. Most patterns have clear physical associations to NF mechanisms, such as a nearby 500 hPa trough that would support a surface cyclone and strong onshore surface winds, or a mid-level high-pressure cell that would direct onshore-oriented return flow along its western periphery. However, some patterns correspond less obviously to oft-referenced NF mechanisms and may instead reflect low-frequency modes of variability and/or localized influences. © 2020, Springer Nature B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169423
Appears in Collections: 气候变化与战略
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作者单位: Department of Biology and Geosciences, Clarion University, Clarion, PA 16214, United States; Department of Oceanography and Coastal Sciences, College of the Coast and Environment, Louisiana State University, Baton Rouge, LA 70803-4105, United States; Department of Finance, Clarion University, Clarion, PA 16214, United States
Recommended Citation:
Vega A.J.,Miller P.W.,Rohli R.V.,et al. Synoptic climatology of nuisance flooding along the Atlantic and Gulf of Mexico coasts, USA[J]. Natural Hazards,2021-01-01,105(2)