Wong, F.L., Hamer, M.R., Hampton, M.A., and Torresan, M.E., 1996,
Bottom Characteristics of an Ocean Disposal Site off Honolulu,
Hawaii: Time-based Navigational Trackline Data Managed by Routes and
Events: Redlands, California, Environmental Systems Research
Institute, 1996 ESRI Users Conference Proceedings (cdrom), approx. 15
p.
Figure 6. Types of sea-bottom morphology
observed in still photographs. North is up. Conversion of the linear
events (time span when one particular morphology was observed) to point
events permits display of phenomena that may only be observed at a
single 1-minute time fix (20-40 m along track, depending on ship speed),
which is the case at several points along the east half of camera line
9. Asymmetrical ripples (green, cyan) help determine an absolute current
direction. Symmetrical ripples (red, magenta) provide the alignment of
the current (for example, N-S), but not the absolute direction. See Figures
5 and 7. Numbers are camera trackline numbers. Water depth is approximately
500 m.
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