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DOKUZ EYLUL UNIVERSITYDOKUZ EYLUL UNIVERSITYSCHOOL OF SCHOOL OF MARITIME BUSINESS AND MANAGEMENTMARITIME BUSINESS AND MANAGEMENT
DEPARTMENT OF DECKDEPARTMENT OF DECK
Selçuk NasSELÇUK NAS
TIDE&
TIDE DIAMOND
DOKUZ EYLUL UNIVERSITYDOKUZ EYLUL UNIVERSITYSCHOOL OF SCHOOL OF MARITIME BUSINESS AND MANAGEMENTMARITIME BUSINESS AND MANAGEMENT
DEPARTMENT OF DECKDEPARTMENT OF DECK
Selçuk NasSELÇUK NAS
TIDEVertical rise and fall of the surface of a body of water caused
primarily by the differences in gravitational attraction of the moon, and to a lesser extent of the sun, upon different parts of the earth.
Moon is many times closer to the earth than the sun therefore gravitational pull is 2 1/4 times more pronounced
DOKUZ EYLUL UNIVERSITYDOKUZ EYLUL UNIVERSITYSCHOOL OF SCHOOL OF MARITIME BUSINESS AND MANAGEMENTMARITIME BUSINESS AND MANAGEMENT
DEPARTMENT OF DECKDEPARTMENT OF DECK
Selçuk NasSELÇUK NAS
What Causes TidesStrong gravitational pull of the moon on the side of the earth nearest the sun, Strong outward centrifugal force generated by the earth-moon system on the opposite side of the earth, Cause the water on the earth’s surface to bulge out in the form of high tides on both sides. The same phenomenon occurs between the sun and the earth but on a much smaller scale.
The moon revolves around the earth once each month. Lunar or Tidal day - 24 hrs and 50 min
Earth rotates beneath it in the same direction. Most locations on earth experience four tides per day.
Each successive high and low tide constitutes one tide cycle. Tide patterns are distorted from the normal 4-tide pattern because of the effects of land masses, constrained waterways, friction, the Coriolis effect, and other effects.
DOKUZ EYLUL UNIVERSITYDOKUZ EYLUL UNIVERSITYSCHOOL OF SCHOOL OF MARITIME BUSINESS AND MANAGEMENTMARITIME BUSINESS AND MANAGEMENT
DEPARTMENT OF DECKDEPARTMENT OF DECK
Selçuk NasSELÇUK NAS
DOKUZ EYLUL UNIVERSITYDOKUZ EYLUL UNIVERSITYSCHOOL OF SCHOOL OF MARITIME BUSINESS AND MANAGEMENTMARITIME BUSINESS AND MANAGEMENT
DEPARTMENT OF DECKDEPARTMENT OF DECK
Selçuk NasSELÇUK NAS
DOKUZ EYLUL UNIVERSITYDOKUZ EYLUL UNIVERSITYSCHOOL OF SCHOOL OF MARITIME BUSINESS AND MANAGEMENTMARITIME BUSINESS AND MANAGEMENT
DEPARTMENT OF DECKDEPARTMENT OF DECK
Selçuk NasSELÇUK NAS
Declination of The Moon
Large High Tide
Small High Tide
X Y
DOKUZ EYLUL UNIVERSITYDOKUZ EYLUL UNIVERSITYSCHOOL OF SCHOOL OF MARITIME BUSINESS AND MANAGEMENTMARITIME BUSINESS AND MANAGEMENT
DEPARTMENT OF DECKDEPARTMENT OF DECK
Selçuk NasSELÇUK NAS
Lowest Astronomical Tide LAT
Highest Astronomical Tide HAT
Mean Low Water MLW
Mean High Water MHW
Mean Low Water Springs MLWS
Mean High Water Springs MHWS
Mean Low Water Neaps MLWN
Mean High Water Neaps MHWN
Mean Lower Low Water MLLW
Mean Higher High Water MHHW
Mean Higher Low Water MHLW
Mean Lower High Water MLHW
Spring tide Sp
Neap tide Np
DOKUZ EYLUL UNIVERSITYDOKUZ EYLUL UNIVERSITYSCHOOL OF SCHOOL OF MARITIME BUSINESS AND MANAGEMENTMARITIME BUSINESS AND MANAGEMENT
DEPARTMENT OF DECKDEPARTMENT OF DECK
Selçuk NasSELÇUK NAS
BOTTOM
CHARTED DEPTH
MHWS
CHART ELEVATION
WATER LEVEL
AIR DRAFT
DRAFTMHWN
MHWS
MLWS
MLWN
CHART DATUM ( LATW ) Hig
h of
Tid
e (H
OT)
DOKUZ EYLUL UNIVERSITYDOKUZ EYLUL UNIVERSITYSCHOOL OF SCHOOL OF MARITIME BUSINESS AND MANAGEMENTMARITIME BUSINESS AND MANAGEMENT
DEPARTMENT OF DECKDEPARTMENT OF DECK
Selçuk NasSELÇUK NAS
DOKUZ EYLUL UNIVERSITYDOKUZ EYLUL UNIVERSITYSCHOOL OF SCHOOL OF MARITIME BUSINESS AND MANAGEMENTMARITIME BUSINESS AND MANAGEMENT
DEPARTMENT OF DECKDEPARTMENT OF DECK
Selçuk NasSELÇUK NAS
BA TIDE TABLEBA TIDE TABLE
DOKUZ EYLUL UNIVERSITYDOKUZ EYLUL UNIVERSITYSCHOOL OF SCHOOL OF MARITIME BUSINESS AND MANAGEMENTMARITIME BUSINESS AND MANAGEMENT
DEPARTMENT OF DECKDEPARTMENT OF DECK
Selçuk NasSELÇUK NAS
BA TIDE TABLEBA TIDE TABLE
DOKUZ EYLUL UNIVERSITYDOKUZ EYLUL UNIVERSITYSCHOOL OF SCHOOL OF MARITIME BUSINESS AND MANAGEMENTMARITIME BUSINESS AND MANAGEMENT
DEPARTMENT OF DECKDEPARTMENT OF DECK
Selçuk NasSELÇUK NAS
DOKUZ EYLUL UNIVERSITYDOKUZ EYLUL UNIVERSITYSCHOOL OF SCHOOL OF MARITIME BUSINESS AND MANAGEMENTMARITIME BUSINESS AND MANAGEMENT
DEPARTMENT OF DECKDEPARTMENT OF DECK
Selçuk NasSELÇUK NAS
BA TIDE DIAMONDBA TIDE DIAMOND
DOKUZ EYLUL UNIVERSITYDOKUZ EYLUL UNIVERSITYSCHOOL OF SCHOOL OF MARITIME BUSINESS AND MANAGEMENTMARITIME BUSINESS AND MANAGEMENT
DEPARTMENT OF DECKDEPARTMENT OF DECK
Selçuk NasSELÇUK NAS
Current = the horizontal movement of a body of water.
Causes:
Gravitational effects of sun and moon Heating and cooling of Earth’s atmosphereWinds blowing across the ocean’s surfaceChanges in salinity due to rain and evaporationThe Coriolis effect
Set - the direction of the currents motionDrift - the velocity of the currentSet & Drift represent the vector added to ship’s motion by the current
TIDE CURRENT
DOKUZ EYLUL UNIVERSITYDOKUZ EYLUL UNIVERSITYSCHOOL OF SCHOOL OF MARITIME BUSINESS AND MANAGEMENTMARITIME BUSINESS AND MANAGEMENT
DEPARTMENT OF DECKDEPARTMENT OF DECK
Selçuk NasSELÇUK NAS
BA TIDE DIAMONDBA TIDE DIAMOND
DOKUZ EYLUL UNIVERSITYDOKUZ EYLUL UNIVERSITYSCHOOL OF SCHOOL OF MARITIME BUSINESS AND MANAGEMENTMARITIME BUSINESS AND MANAGEMENT
DEPARTMENT OF DECKDEPARTMENT OF DECK
Selçuk NasSELÇUK NAS
BA TIDE DIAMONDBA TIDE DIAMOND
1400 DR7th Feb.
HW
LW
1010
1410 DR
SET : 2650
Drift : 2,6 Knot For Spring Tide 1,3 Knot Neap Tide
DOKUZ EYLUL UNIVERSITYDOKUZ EYLUL UNIVERSITYSCHOOL OF SCHOOL OF MARITIME BUSINESS AND MANAGEMENTMARITIME BUSINESS AND MANAGEMENT
DEPARTMENT OF DECKDEPARTMENT OF DECK
Selçuk NasSELÇUK NAS
BA TIDE DIAMONDBA TIDE DIAMOND
1400 DR7th Feb.
HW
LW
1410 DR
SET : 2650
Drift : 2,6 Knot For Spring Tide 1,3 Knot Neap Tide
We will check Mean Range and Actual Range for Actual Drift
OK
DOKUZ EYLUL UNIVERSITYDOKUZ EYLUL UNIVERSITYSCHOOL OF SCHOOL OF MARITIME BUSINESS AND MANAGEMENTMARITIME BUSINESS AND MANAGEMENT
DEPARTMENT OF DECKDEPARTMENT OF DECK
Selçuk NasSELÇUK NAS
BA TIDE DIAMONDBA TIDE DIAMOND
1400 DR7th Feb.
1410 DR
SET : 2650
Drift : 2,6 Knot For Spring Tide 1,3 Knot Neap Tide
ACTUAL RANGE = 5,5 mMEAN RANGES Springs = 6 mNeaps = 3,2 m
We will compare ranges and make a interpolation
DOKUZ EYLUL UNIVERSITYDOKUZ EYLUL UNIVERSITYSCHOOL OF SCHOOL OF MARITIME BUSINESS AND MANAGEMENTMARITIME BUSINESS AND MANAGEMENT
DEPARTMENT OF DECKDEPARTMENT OF DECK
Selçuk NasSELÇUK NAS
BA TIDE DIAMONDBA TIDE DIAMOND
1400 DR7th Feb.
1410 DR
SET : 2650
Drift : 2,6 Knot For Spring Tide 1,3 Knot Neap Tide
Springs = 6 m 2,6 Knot
Neaps = 3,2 m 1,3 Knot1,3 Knot2,8 m
Z
0,5 m Y
ACTUAL RANGE = 5,5 m
Y = ( 0,5 x 1,3 ) / 2,8Y = 0,23
Z = 2,6 – 0,23Z = 2,37 = 2,4 Knot
MEAN RANGES Springs = 6 mNeaps = 3,2 m
ACTUAL RANGE = 5,5 m
DOKUZ EYLUL UNIVERSITYDOKUZ EYLUL UNIVERSITYSCHOOL OF SCHOOL OF MARITIME BUSINESS AND MANAGEMENTMARITIME BUSINESS AND MANAGEMENT
DEPARTMENT OF DECKDEPARTMENT OF DECK
Selçuk NasSELÇUK NAS
BA TIDE DIAMONDBA TIDE DIAMOND
1400 DR7th Feb.
1410 DR
SET : 2650
Drift : 2,4
DOKUZ EYLUL UNIVERSITYDOKUZ EYLUL UNIVERSITYSCHOOL OF SCHOOL OF MARITIME BUSINESS AND MANAGEMENTMARITIME BUSINESS AND MANAGEMENT
DEPARTMENT OF DECKDEPARTMENT OF DECK
Selçuk NasSELÇUK NAS
Questions
DOKUZ EYLUL UNIVERSITYDOKUZ EYLUL UNIVERSITYSCHOOL OF SCHOOL OF MARITIME BUSINESS AND MANAGEMENTMARITIME BUSINESS AND MANAGEMENT
DEPARTMENT OF DECKDEPARTMENT OF DECK
Selçuk NasSELÇUK NAS
DOKUZ EYLUL UNIVERSITYDOKUZ EYLUL UNIVERSITYSCHOOL OF SCHOOL OF MARITIME BUSINESS AND MANAGEMENTMARITIME BUSINESS AND MANAGEMENT
DEPARTMENT OF DECKDEPARTMENT OF DECK
Selçuk NasSELÇUK NAS
HW
LW
ACTUAL RANGE = HW – LW6,5 – 15,5 m
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