(Article of periodic en Anglais - 2011)

Document title

Hydroclimatology of the U.S. Gulf Coast under global climate change scenarios

published at : The physical geography of medium-sized rivers, focusing on the Southeastern and South-Central United States. Part II

Authors(s) and Affiliation(s)

KEIM B.D. (1) ; FONTENOT R. (1) ; TEBALDI C. (2) ; SHANKMAN D. (3) ;
(1) Dep. of Geography and Anthropology, Louisiana State Univ., Baton Rouge, ETATS-UNIS
(2) Climate Central, New Jersey, Princeton, ETATS-UNIS
(3) Dep. of Geography, Univ. of Alabama, Tuscaloosa, ETATS-UNIS


The historical climate record and climate change scenarios of the north-central Gulf of Mexico Coast (roughly from Houston, Texas to Mobile, Alabama) was examined to assess past and future temperature and hydrology of the region. Over the entire record since 1919, there was an increase in rainfall, and that, combined with relatively cool temperatures, led to a 36% increase in runoff. To assess future extremes in regional hydroclimatology, the A1B and B1 emission scenarios were examined for the region. The models suggest a warmer Gulf Coast region of about 1.5°C. Precipitation projections are more uncertain, with conflicting increases and decreases projected by the various models, although most suggest a decrease in annual rainfall across the Gulf Coast. By compounding changing precipitation with increasing temperatures, overall runoff is likely to remain the same or decrease, while deficits (or droughts) could become less severe because of possible increases in summer and autumn precipitation


Thematical fascicle

published at : Physical geography / ISSN 0272-3646

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

Millesime : 2011, vol. 32, no 6 [pp. 561-582]

Bibliographic references : 4 p.

Collation : fig., tabl.



INIST-CNRS, Cote INIST : 20106

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.2747/0272-3646.32.6.561

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
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