APPENDIX A: DATA 



1. This appendix contains a listing of the basic data collected during 

 the SUPERDUCK surf zone sand transport experiments . Data are given for the 

 following quantities: 



a. Wet weight of collected sand (Table Al) . 



b. Elevations of individual trap streamers (Table A2) . 



c. Water levels during the experiments (Table A3) . 



d. Horizontal coordinates of the photopoles (Field Research Facility 

 (FRF) coordinate system) (Table A4) . 



e. Grain size data (Table A5) . 



2. Table Al gives the weight of the sand collected in the streamers as 

 recorded in the field logbooks, without adjustments for trap efficiency. A 

 value of 0.0 indicates that no sand was collected in the streamer, and blank 

 spaces denote no streamer at that elevation. The wet sand was weighed in a 

 drip-free state in small patches of sieve cloth, and the weight of the sieve 

 cloth was subtracted to arrive at the values given in Table Al. The drip -free 

 wet weight (WW) and the dry weight (DW) of samples consisting primarily of 

 sand are linearly related (Kraus and Nakashima 1986*) for a wide range of 

 common grain sizes and sample weights as 



DW = c WW 



(Al) 



for which the empirical coefficient c must be determined through calibration 

 for the particular field operation and weighing procedure, since judgment of 

 the drip-free state is somewhat subjective. The value c ranged from 0.72 to 

 0.81 for the SUPERDUCK experiments; an average value obtained from samples 

 analyzed during one run per day was used to convert wet weights to dry weights 

 for samples collected during that day's runs. 



3. Table A2 gives the elevation of each streamer on each trap deployed 

 for a particular run. Elevations are given as distances from the bed to the 



References cited in Appendix A can be found in the list of references at 

 the end of the main text. 



Al 



