summarized in Table A4 and the depth-averaged velocity vectors are plotted in 



Plates A13-A16. Data collected in the south bay area on 29 August are summarized in 



Table A5 and plotted in Plates A17-A20. 



The following is a detailed daily summary of the data collection effort conducted in the 

 respective areas during this first trip (neap tide). 



Inlet surveys 



On 26 August an intensive data collection effort was conducted. ADCP transect lines 

 1-9 (shown in Plate A2 1) in the inlet were repeated at approximately 1-hr increments over 

 a 12-hr period. (Note: Inlet transect lines 1-9 differ from transect lines 1-9 in the bay 

 area.) The transect lines began at the north jetty and ran to the south. Each set of 

 transects required approximately 30-45 min to complete. Waves in the outer portions of 

 the inlet were generally 1 m high with short periods; however, conditions deteriorated 

 during periods of ebb flow. Data collection efforts at the most seaward transect line (7), 

 which ran between the seaward ends of the jetties, were hampered by the high wave 

 conditions and only a few hours of data were obtained at this location. The waves in the 

 inner inlet area were significantly smaller and more conducive to longer periods of data 

 collection. Data collected at transect lines 8 and 9 occurred near the time of the peak flood 

 currents and captured the division of flow between the north and south portions of the bay, 

 respectively. Hourly results of the intensive survey are summarized in Table A2. 



Ebb shoal surveys 



ADCP transect lines 69 and 77-84 (in the ebb shoal area) were monitored on 

 28 August. Morning measurements at these transects were made under ebb flow 

 conditions and the afternoon measurements were made under flood flow conditions. These 

 transect lines were up to 3.0 km long, requiring approximately 4 hr to conduct each set of 

 transects. During the morning survey, transect line 80 had to be shortened due to breaking 

 waves on the shoal. The offshore waves were 1 .2 m in height with periods of 7-8 sec, and 

 winds were light. Large breakers were focused on the ebb shoal just seaward of the south 

 jetty. Table A4 presents the discharges for each set of measurements and the data are 

 plotted in Plates A13-A16. The data generally illustrate the wave direction; however, near 

 the end of the jetties, the velocity vectors indicate the tidal current direction. 



North bay surveys 



On 25 August, a partial flood flow condition survey, which included transect lines 

 26-3 1 , was made in an area of the north bay located between the inlet and extending 

 1 .6 km to the north (Plates A5 and A6). To complement the data set, a longitudinal 

 transect along the channel center line was also obtained. On 27 August, selected ADCP 

 transect lines in north bay (beginning at the inlet and extending approximately 8 km to the 

 north) were monitored during ebb flow conditions (Plates A8-A10). 



A4 Appendix A Velocity and Discharge Measurements at Ponce de Leon, FL 



