Summary: Continental Shelf Research 25 (2005) 2213­2232
Storm layer deposition on the Mississippi­Atchafalaya
subaqueous delta generated by Hurricane Lili in 2002
Mead A. Allisona,Ã, Alexandru Sheremetb
, Miguel A. Gon~ ic
, Gregory W. Stoneb
a
Department of Earth and Environmental Sciences, Tulane University, New Orleans, LA 70118, USA
b
Coastal Studies Institute and Department of Oceanography and Coastal Sciences, Louisiana State University, Baton Rouge, LA 70803, USA
c
College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331-5503, USA
Received 24 May 2005; received in revised form 11 August 2005; accepted 29 August 2005
Abstract
The Atchafalaya inner continental shelf, located along the north-central Gulf of Mexico offshore of Louisiana, is an area
of rapid mud accumulation associated with the progradation of a subaqueous delta originating from this Mississippi River
distributary. In September­October 2002, this region was impacted by two tropical cyclones (Tropical Storm Isidore and
Hurricane Lili) separated by only 7 days. Water-column and hydrodynamic records from coastal observation platforms
(WAVCIS network) are combined with seabed sampling 4­7 days after passage of Lili, to examine the impact of these
events on the Atchafalaya inner shelf. Wind speeds at the CSI-3 platform on the delta (located in 4.5 m of water) peaked at

Source: Allison, Mead - Institute for Geophysics, University of Texas at Austin
Goni, Miguel A. - College of Oceanic and Atmospheric Sciences, Oregon State University

Collections: Environmental Sciences and Ecology; Geosciences