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| Austechcity Pty ltd ACN:121002775 trading as Bourne Electronics Shop 2 106 Camms rd Cranbourne Victoria 3977 Nationwide local call:1300 734546 Fax:03 59962755 Email:Contact@bourneelectronics.com.au |
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How to Set your tide clock
The moon is the major cause of the tides. The lunar day (the time it takes for the moon to reappear at the same
place in the sky) is 24 hours and 50 minutes. Most places have two high tides and two low tides each day.
Therefore this clock is designed so that its hand rotates once every 12 hours and 25 minutes (twice each lunar
day). Your Tide Clock always stays in exact step with the moon. But there are many other factors that can make
the day to day tides a little earlier or later than the Tide Clock shows.
To minimise these fluctuations, insert the AA battery into the clock on the highest tide of the month (usually on the
day of a full moon or the day after) at exactly the time of high tide (please see your local tide tables or our website
for this information) and with the hand on the clock pointing
to HIGH TIDE. This way your tide clock will stay in step with the moon indefinitely.
The moon is the major cause of the tides. The lunar day (the time it takes for the moon to reappear at the same
place in the sky) is 24 hours and 50 minutes. Most places have two high tides and two low tides each day.
Therefore this clock is designed so that its hand rotates once every 12 hours and 25 minutes (twice each lunar
day). Your Tide Clock always stays in exact step with the moon. But there are many other factors that can make
the day to day tides a little earlier or later than the Tide Clock shows.
To minimise these fluctuations, insert the AA battery into the clock on the highest tide of the month (usually on the
day of a full moon or the day after) at exactly the time of high tide (please see your local tide tables or our website
for this information) and with the hand on the clock pointing
to HIGH TIDE. This way your tide clock will stay in step with the moon indefinitely.
TIDES ARE HIGHER THAN NORMAL DURING A FULL MOON:
When the sun, moon and earth are lined up, as they are at the time of a new moon and full moon, their
influences combine and high tide is higher than normal and low tide is lower than normal. When the sun and the
moon are at right angles, as they are at the first quarter and last quarter of the moon, the sun cancels some of
the moons effect and the range of the tide is smaller than usual. Also, at these times the sun will make the tides
somewhat earlier or later than average. This is why it is important to set your tide clock on the day of a full moon
as the moon has the dominating effect on the tides.
There are actually two tidal cycles: a twice daily cycle and a once daily cycle. On a tide when the two cycles help
each other, high tides will be higher and low tides owe. On the next tide, when they conflict, the tidal ranges will
be smaller. The relative strength of these two cycles varies from week to week and also varies from one place to
another.
Abnormal atmospheric pressure can temporarily affect the time and height of the tides. Difference of one inch in
barometric pressure will cause a one foot difference in sea level. Strong onshore winds will also cause a
temporary increase in sea level. Both these effects will change the times of low and high tides as well. Tides in
the lower portions of rivers will be affected by changing volume of river flow.
When the sun, moon and earth are lined up, as they are at the time of a new moon and full moon, their
influences combine and high tide is higher than normal and low tide is lower than normal. When the sun and the
moon are at right angles, as they are at the first quarter and last quarter of the moon, the sun cancels some of
the moons effect and the range of the tide is smaller than usual. Also, at these times the sun will make the tides
somewhat earlier or later than average. This is why it is important to set your tide clock on the day of a full moon
as the moon has the dominating effect on the tides.
There are actually two tidal cycles: a twice daily cycle and a once daily cycle. On a tide when the two cycles help
each other, high tides will be higher and low tides owe. On the next tide, when they conflict, the tidal ranges will
be smaller. The relative strength of these two cycles varies from week to week and also varies from one place to
another.
Abnormal atmospheric pressure can temporarily affect the time and height of the tides. Difference of one inch in
barometric pressure will cause a one foot difference in sea level. Strong onshore winds will also cause a
temporary increase in sea level. Both these effects will change the times of low and high tides as well. Tides in
the lower portions of rivers will be affected by changing volume of river flow.
TIDE CLOCKS -Clocks that tell the Tide
Why Choose a Tide clock
From Sailing to sand castles we all need to know what the tide is
doing .Whether you ve been at sea all your life or just enjoy the
occasional fishing trip or day surfing, A Tide Clock will ensure you
always know where the tide is and if its coming in or going out
From Sailing to sand castles we all need to know what the tide is
doing .Whether you ve been at sea all your life or just enjoy the
occasional fishing trip or day surfing, A Tide Clock will ensure you
always know where the tide is and if its coming in or going out
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How the tide clocks Works
The Moon provides the overwhelming influence over the tide. The Lunar day (the tide it takes for the moon to
reappear at the same place in the sky )is 24 hours and 50 minutes .Most places have two high tides and two low
tides in this period Therefore the clock is designed so that its hand rotates once every 12 hours and 25 minutes
(Twice each lunar day) so that your tide clock always stays in exact with the moon
The Moon provides the overwhelming influence over the tide. The Lunar day (the tide it takes for the moon to
reappear at the same place in the sky )is 24 hours and 50 minutes .Most places have two high tides and two low
tides in this period Therefore the clock is designed so that its hand rotates once every 12 hours and 25 minutes
(Twice each lunar day) so that your tide clock always stays in exact with the moon
Its so easy to use
All you have to do is look at where the hand is on the
Tide Clock This will tell you tide is in its cycle
All you have to do is look at where the hand is on the
Tide Clock This will tell you tide is in its cycle
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A Great selection to choose from
YACHTS BEACH WAVE CLASSIC FISHING FLAGS
Gaint 70cm Tide Clock Available in Classic style Only
YACHTS BEACH WAVE CLASSIC FISHING FLAGS
Gaint 70cm Tide Clock Available in Classic style Only
FLUCTUATIONS:
Please remember that although the gravitational pull of the moon is the major effect over the tides, there are
other small factors that can cause the actual tide times to fluctuate around the tide times that are represented on
the clock, so it may seem like the clock is slightly inaccurate during some tides, but it will always fall back into line
if it has been set correctly. It is also important to remember that high tide is a state that exists over a period of
time, not just for one minute of the day (although it may seem that way when you read your tide tables.)
Atmospheric pressure, the contour of the sea bed, wind, and even the gravitational pull of the sun are also
factors that affect the tides.
Please remember that although the gravitational pull of the moon is the major effect over the tides, there are
other small factors that can cause the actual tide times to fluctuate around the tide times that are represented on
the clock, so it may seem like the clock is slightly inaccurate during some tides, but it will always fall back into line
if it has been set correctly. It is also important to remember that high tide is a state that exists over a period of
time, not just for one minute of the day (although it may seem that way when you read your tide tables.)
Atmospheric pressure, the contour of the sea bed, wind, and even the gravitational pull of the sun are also
factors that affect the tides.
Gaint 70cm
Classic
TideClcok
Classic
TideClcok
| FOR ANYONE THE SEA |
