Hydroclimatological characteristics and atmospheric circulation anomalies associated with the Gulf of Mexico hypoxic zone

Auteur(s) et Affiliation(s)

ROHLI, R.V.

Dept. of Geography and Anthropology, Louisiana State Univ., Baton Rouge, Etats-Unis

WILKERSON, J.L.

School of Plant, Environmental, and Soil Sciences, Louisiana State Univ., Baton Rouge, Etats-Unis

VINES, N.A.

Environmental Systems Research Inst., California, Redlands, Etats-Unis

Description :
The Gulf of Mexico Hypoxic Zone (GMHZ) has been observed along the Louisiana continental shelf west of the mouth of the Mississippi River since 1985. This research assesses the association between monthly climate divisional Palmer Drought Severity Index (PDSI) and atmospheric teleconnection indices and the surface extent of the GMHZ. Factor analysis is used to identify regions of homogeneous hydroclimatic variability that may contribute to variability in GMHZ extent. Results may be helpful in understanding the cascade of linkages from hemispheric-scale circulation to local-scale environmental impacts at the mouth of the Mississippi River.

Type de document :
Article de périodique

Source :
Physical geography, issn : 0272-3646, 2008, vol. 29, n°. 5, p. 404-423, nombre de pages : 20, Références bibliographiques : 5 p.

Date :
2008

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

Langue :
Anglais