NorthStar 958, Operator'S Manual

Page: 166 / 232

Page 158 958 Operator’s Manual, Rev. A
Chapter 11 - Alarms, TideTrack, and Video Display
Understanding TideTrack ™
The 958 calculates tide information for any of over 3,540 NOS/
NOAA tide stations. To display this information, press the
STAR
key until you see the
TIDE TRACK
screen.
The entire U.S. coastline--including Alaska and Hawaii--is
covered, plus many Caribbean islands and eastern and western
Canada. Tides can be displayed for any date up to the year
2010. Data is from the official tide-table predictions and
should be as accurate as the printed tables. For more
information about tides, see
Tide Tables published by the NOS/
NOAA, Rockville, Maryland 20852.
The water height for any 24-hour period is displayed for the
selected NOAA tide station.
The name of the selected tide station and the selected day are
shown at the top of the screen.
The center of the screen shows a graphic representation of the
tide height for the entire day. Maximum and minimum
heights are shown as dashed horizontal lines labeled with the
height in feet. Mean Lower Low Water (MLLW) is shown as a
solid line near the bottom of the picture. A solid vertical line
and arrow is positioned to show the tide level at the current
time.
Just below the tide graph is the time scale, showing the local
time (LCL) for each point, and (if the station is in a different
time zone) the time at the tide station (TID).