HR: 16:45h
AN: OS34A-06    [Abstracts]
TI: Observations of multiple-barred beach response to tropical storms
AU: * Plant, N G
EM: nplant@nrlssc.navy.mil
AF: Naval Research Laboratory, Code 7440.3, Stennis Space Ctr, MS 39529
AU: Holland, K T
EM: tholland@nrlssc.navy.mil
AF: Naval Research Laboratory, Code 7440.3, Stennis Space Ctr, MS 39529
AU: Kooney, T
EM: tkooney@nrlssc.navy.mil
AF: Naval Research Laboratory, Code 7440.3, Stennis Space Ctr, MS 39529
AB: Multiple sand bars occur along the coastline of the Mississippi Sound, on the USA's Gulf Coast. Observations of the response of these bars have been made using an automated video camera system in Bay St. Louis, MS (http://visser.nrlssc.navy.mil/LOUIE). At this site, up to 10, approximately shore-parallel sandbars with a cross-shore spacing of about 20 m have been monitored over a 3 year period. During this time numerous tropical storms have passed the area, causing large fluctuations in water levels, wave heights, and nearshore currents. We present an analysis of the relationship between these strong changes in the local forcing and the corresponding bar response. Results so far indicate that the multiple bars are remarkably unaffected by the impulsive forcing due to large storms, and evolve at a much slower time scale.
UR: http://visser.nrlssc.navy.mil/LOUIE
DE: 3020 Littoral processes
DE: 4200 OCEANOGRAPHY: GENERAL
DE: 4263 Ocean prediction
DE: 4560 Surface waves and tides (1255)
DE: 4564 Tsunamis and storm surges
SC: Ocean Sciences [OS]
MN: 2005 Joint Assembly