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The 2008 spring Midwest floods : a signal of changing climatic conditions?

Auteur(s) et Affiliation(s)

STROPE, S.A.
Dep. of Geography-Geology, Illinois State Univ., Normal, Etats-Unis
BUDIKOVA, D.
Dep. of Geography-Geology, Illinois State Univ., Normal, Etats-Unis


Description :
The AA. examine historical records of river discharge rates and stage levels at 16 gauging stations in Iowa, southern Wisconsin, and southern Indiana to assess the severity and impact of flooding on local river systems and place the event in historical perspective. Discharge rates were higher than expected in May, peaking in June when magnitudes often reached record levels; estimated return periods for June often exceeded between 100 and 200 years on rivers in these areas. Daily flood stage levels were exceeded, often for extended periods of time, during May and June. River conditions began to recover in late June and continued to recede through July and August. The AA. also placed the observations in the context of simultaneous weather and synoptic conditions, changing precipitation regimes across the region, and anticipated future climate change due to anthropogenic forcing.


Type de document :
Article de périodique

Source :
Physical geography, issn : 0272-3646, 2011, vol. 32, n°. 4, p. 313-337, nombre de pages : 25, Références bibliographiques : 46 ref.

Date :
2011

Editeur :
Pays édition : Royaume-Uni, Abingdon, Taylor and Francis

Langue :
Anglais
Droits :
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