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Coastal Mudflat Accretion under Energetic Conditions, Louisiana Chenier-Plain Coast, USAMudflat accretion on the chenier-plain coast of Louisiana, northern Gulf of Mexico, is anomalous in an area that otherwise experiences widespread land loss due to rapid relative sea level rise. Accretion is shown to be related to energetic events (Winta cold fronts and occasional tropical-dcprrssion srmms) using a 17-year record of meteorological conditions and aerial surveys The results indicate substantial differences between the behavior of sand- and mud-dominated coastal systems under energetic conditions. Comparison of the Louisiana chenier plain to other mud-rich coasts indicates that certain conditions are necessary for mudflat accretion to occur during energetic atmospheric activity. These include an abundant supply of fine-grained fluvial sediment and resuspension events that maintain an unconsolidated sea floor, dominant onshore wind direction during energetic conditions, particularly when onshore winds coincide with high fluvial sediment input to the coastal ocean, and a low tidal range.
Document ID
20050060955
Acquisition Source
Headquarters
Document Type
Reprint (Version printed in journal)
Authors
Draut, Amy E.
(California Univ. Santa Cruz, CA, United States)
Kineke, Gail C.
(Boston Coll. Chestnut Hill, MA, United States)
Huh, Oscar K.
(Louisiana State Univ. Baton Rouge, LA, United States)
Grymes, John M., III
(Louisiana State Univ. Baton Rouge, LA, United States)
Westphal, Karen A.
(Louisiana State Univ. Baton Rouge, LA, United States)
Moeller, Christopher C.
(Wisconsin Univ. Madison, WI, United States)
Date Acquired
August 22, 2013
Publication Date
January 1, 2005
Publication Information
Publication: Marine Geology
Publisher: Elsevier Science Publishers
Volume: 214
Subject Category
Geophysics
Funding Number(s)
CONTRACT_GRANT: NAG5-9688
CONTRACT_GRANT: N00014-98-0083
Distribution Limits
Public
Copyright
Other

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