F2 
The DELILAH array gauges provide background data on the horizontal 
structure of the hydrodynamics and on the stationarity of the waves and 
currents. Sled measurements were made during the final six days of the 
DELILAH experiment, from 16 to 21 October. Incident waves during these 
days provided a variety of conditions with wave heights of 0.5 to 1.5 m, peak 
spectral periods of 5 to 15 sec, wind speeds of 5 to 15 m/s, and wave 
directions both north and south of shore-normal. The maximum time-averaged 
current velocities exceeded 0.5 m/sec during measurements with the sled. 
Quality control checks during the experiment indicated that the middle 
current meter (elevation 1.0 m) had a large offset, relative to the 
pre-experiment calibration. Calibrations were performed in the field during 
three runs (SL1808A, SL1909A, and SL1916A) by rotating the current meters 
and comparing the measured data to a similar run without meter rotation. 
In shallow depths one or more current meters were often out of the water. 
An estimate of when this occurred was done with the same procedure as 
described for the DELILAH array current meters in the DELILAH array data 
analysis section in Appendix E. A minimum water elevation for each wave 
trough was computed from the pressure gauge record, then the elevation of 
each current meter was checked to determine if it exceeded the lowest wave 
trough. A data quality flag was set in each time series header for current 
meters that were believed to be exposed. An additional quality check of the 
current meter gains was then done with the PUV-test procedure as described in 
Appendix E. 
Appendix F Instrumented Sled 
