2008 REED’s East Coast Edition - Tides
EXAMPLE In the tide differences table, the height
Suppose you want tidal information for
differences for Greenport are shown as
Greenport, NY on June 1 2008. Find the
*0.93 for high tide and *0.94 for low tide. To
Greenport listing in the tide differences table
determine the heights of the lows and highs
on page 523. Note that differences for this
at Greenport, the high tide heights from the
station are keyed to the primary tide table for
New London tide table for June 1 must be
New London, CT, beginning on page 384.
multiplied by 0.93, and the lows multiplied by
The time differences at Greenport are + 1
0.94.
hour and 5 minutes for high tide and +49
Reading from the New London table (page
minutes for low tide.
384) the height of the first low tide (at 0204) is
On June 1 of 2008, the tide in New London
-0.1 feet below the chart datum of soundings;
looks like this:
the first high (at 0738), is 2.6 feet; the second
high, 3.7 feet; and the second low, 0.2 feet. To
find the corresponding approximate heights at
1
0204 -0.1
0738 2.6
Greenport, multiply by the appropriate factor:
Su1353 0.2
1959 3.7
First low: -0.1 feet (0.94) =- 0.09
To find the corresponding times at Green-
First high: 2.6 feet (0.93) = 2.4
port, add 1 hour and 5 minutes to the New
Second low: 0.2 feet (0.94) = 0.19
London high tides and 49 minutes to the lows:
Second high: 3.7 feet (0.93) = 3.4
First low: 0204 + 49 = 0253
The last column on page 523 notes the
First high: 0738 + 1 05 = 0843
spring tidal range at Greenport as 2.9 feet.
Second low: 1353 + 49 = 1442
Second high: 1959 + 1 05 = 2104
518