between passage of the storm and an observer arriving on the site to annotate 
the tide-gage record. Such difficulties could be minimized during future 
storms if someone from the local field operating office or a member of the 
surge field team were designated to recover the hydrographs as quickly as 
feasible subsequent to a storm's passage. 
38. The tide records and wave data acquired on the Shell Oil Company 
platforms constitute particularly unusual data sets in that gradients of the 
surge amplitude and growth/decay of the wind-generated waves as functions of 
fetch and time can be estimated. The close agreement at all three locations 
(Bay Marchand, Eugene Island, Vermillion) of the dominant wave period (about 
8.5 sec during the height of the storm) leaves no doubt as to the origin of 
the waves. 
19 
