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Dip short

This is the name of the procedure or correction that is used in place of the normal dip correction for sextant sights taken using a shoreline instead of a true sea horizon. This type of sight has a larger dip correction since the shoreline is closer than the true horizon and the therefore the measured Hs is too big. There are tables for this correction in Bowditch, but they are in too big of steps. Generally we must do a simple computation to figure the proper dip short. The computation depends on your height of eye above the water level and the distance to the shoreline in the direction of the sight. The explanation and forumla are in Section 11.14 of the course book.

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