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(Article of periodic en Anglais - 2014)

Document title

Annual floods in New England (USA) and Atlantic Canada : synoptic climatology and generating mechanisms

Authors(s) and Affiliation(s)

COLLINS M.J. (1) ; KIRK J.P. (2) ; PETTIT J. (3) ; DEGAETANO A.T. (4) ; MCCOWN M.S. (5) ; PETERSON T.C. (5) ; MEANS T.N. (6) ; ZHANG X. (7) ;
(1) National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Gloucester, MA, ETATS-UNIS
(2) Dept. of Geography , State Univ., Kent, ETATS-UNIS
(3) Dept. of Atmospheric and Oceanic Sciences, Univ. of Colorado, Boulder, ETATS-UNIS
(4) Dept. of Earth and Atmospheric Sciences, Cornell Univ., Ithaca, ETATS-UNIS
(5) National Climatic Data Center, National Oceanic and Atmospheric Administration, Asheville, ETATS-UNIS
(6) The Baldwin Group, Inc., Asheville, ETATS-UNIS
(7) Climate Research Division, Environment Canada, Toronto, CANADA

Abstract

The AA. analyzed a set of long-term annual flood records at climate-sensitive stream gauges across New England (USA) and Atlantic Canada and classified the synoptic climatology of each annual flood, quantitatively describing the precipitation mechanisms, and characterize flood seasonality. They find that annual floods here are dominantly generated by Great Lakes-sourced storms and Coastal lows, known locally as "nor'easters". Great Lakes storms tend to be associated with lower magnitude annual floods and Coastal lows are more clearly associated with higher magnitude events. Tropical cyclones account for few of all annual floods, including extreme events, despite causing some of the region's largest and most destructive floods. Late winter/early spring is when the greatest number of annual floods occur region wide, and rainfall is the dominant flood-producing mechanism. Rainfall in combination with snowmelt is also important. Both mechanisms are expected to be impacted by projected regional climate change

Source

Article of periodic

published at : Physical geography / ISSN 0272-3646

Editor : Taylor & Francis, Abingdon - ROYAUME-UNI (1980)

Millesime : 2014, vol. 35, no3 [pp. 195-219]

Bibliographic references : 55 ref.

Collation : 8 fig., 3 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 20106

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1080/02723646.2014.888510

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
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