Points and lines do not preserve time-sequential data, but the dynamic segmentation model falters on query and display speed. The format of the measure item in the section attribute table of the route coverage is limited to 4,12,F,3. We have worked around this limitation by using only the day, hour, and minute fields of the time record. However, this limitation needs to be addressed if we are to work with surveys that cross year and, soon, century boundaries for which we will need more significant digits in the time field. There is a broad spectrum of ripple types, including both symmetrical and asymmetrical forms.
Some ripples appear highly degraded, and others have crests that are short and disorganized.
There are a few areas over which ripples face consistently to the east. The currents are oscillatory, but they transport dredged material and native sediment primarily in a net westerly to northwesterly direction. As other types of data are analyzed and mapped with tools described here, a more thorough understanding of the sedimentary processes and, consequently, the fate of the dredged material in Mamala Bay should emerge. 01 Oct 97.