There were 127 surges during Che 105-minute period for an average of 1.2 

 surges per minute (Table 3). Highest velocity surges were measured at the 

 peak of high tide with velocities dropping to the range of 0.5 to 0.9 meter 

 per second during the final 30 mir.ates of record. 



Table 3. Overwash surge measurements of maximum Instantaneous 

 velocity for the 6 February 1978 northeaster recorded 

 from 10:00 to 11:30 a.m. 



Surge No. Velocity Surge N'o. Velocity Surge :.'o . Velocity Surge No. Velocity 

 (a/s) (a/s) (a/s) (a/s) 



1 0.61 33 



2 1.14 34 



3 1.S3 35 



4 1.53 36 



5 1 .60 37 

 b 2.06 38 

 7 1.45 39 

 3 1.83 40 

 1 0.34 41 



U 0.53 42 



11 1.14 43 



12 2.29 -4 



13 2.29 45 



14 1.45 4b 



15 1.68 47 



16 1.7 5 48 



17 1.83 49 



18 0.92 50 



19 0.53 51 



20 0.61 52 



21 1.14 53 



22 1.60 54 



23 1.68 55 



24 0.92 56 



25 1.33 57 



26 1.83 58 



27 1.60 59 



28 0.34 60 



29 0.92 61 



30 1.5 3 62 



A part of the velocity record is shown in Figure 9. The record shows a 

 continual curve, representing the surges of water passing the velocity probe. 

 Between surges, the probe was partially wetted by rain, swash splash, and 

 foam. This moisture, coupled with the high winds (+30 knots), resulted in an 

 irregular response by the electromagnetic current meter and could easily be 

 detected as noise. 



1.37 



65 



1.68 



97 



0.30 



2.29 



66 



1.37 



98 



0.92 



f.07 



67 



0.76 



99 



0.92 



2.14 



68 



0.84 



100 



0.84 



0.92 



69 



1.68 



101 



0.45 



0.61 



70 



1.53 



102 



0.61 



1.07 



71 



1.98 



103 



1.53 



1.53 



72 



1.68 



104 



0.84 



2.14 



73 



0.61 



105 



1.22 



1.45 



74 



2.14 



106 



0.92 



1.22 



75 



1.07 



107 



0.61 



2.44 



76 



0.76 



108 



0.52 



1.53 



77 



1.30 



109 



0.7b 



1.07 



78 



1.22 



110 



0.52 



1.14 



79 



2.29 



111 



0.45 



1.83 



80 



0.76 



112 



1.22 



1.83 



81 



1.22 



113 



1.07 



1.22 



82 



2.21 



114 



0.37 



1.68 



83 



0.61 



115 



0.45 



1.14 



84 



1.22 



il6 



0.84 



1.30 



35 



1.9! 



117 



0.52 



1.53 



86 



1.60 



118 



0.92 



0.92 



87 



2.06 



119 



0.45 



1.75 



88 



0.61 



120 



0.52 



1.22 



89 



0.61 



121 



0.45 



1.53 



90 



0.92 



122 



0.52 



O.ol 



91 



1.30 



123 



1.07 



1.45 



92 



1.98 



124 



0.45 



1.37 



93 



0.92 



125 



0.45 



1.63 



94 



1.53 



126 



0.61 



I .22 



95 



0.30 



127 



0.61 



1.14 



96 



0.30 







35 



