1. TIDE PREDICTON
BRITISH ADMIRALTY
SECONDARY PORT
Prepared by Selçuk NAS

2. TIME AND HIGHT DIFFERENCES FOR PREDICTINGH TIDE AT
PART I
TIDAL PREDICTION
FOR
STANDARD PORTS
PART II
TIME AND HIGHT DIFFERENCES
FOR PREDICTINGH TIDE AT
SECONDARY PORTS

3. TIME AND HIGHT DIFFERENCES FOR PREDICTINGH TIDE AT
PART II
TIME AND HIGHT DIFFERENCES
FOR PREDICTINGH TIDE AT
SECONDARY PORTS

4. TIME AND HIGHT DIFFERENCES FOR PREDICTINGH TIDE AT
PART II
TIME AND HIGHT DIFFERENCES
FOR PREDICTINGH TIDE AT
SECONDARY PORTS
Barra (North Bay)
DIFFERENCES

5. Chart Depth is 15 m. at the enterance point of Barra North Bay
Please find the actual depth of the water by the time of 12:00 LT. in 16 July 2000,
Time
Height HW LW
Standart Port
4,0
1,1
2,9
Range
06 51
13 09
Seasonal change
STANDARD PORT
DIFFERENCES
Secondary Port
SECONDARY PORT
Duration

6. -00 32 -00 38 06 19 12 31 Time Height HW LW Standart Port 4,0 1,1 2,9
Range
06 51
13 09
Seasonal change
STANDARD PORT
DIFFERENCES
Secondary Port
SECONDARY PORT
Duration
(-01 03)
(-00 31)
( ?? ??)
360m m
9 m X
X= 32.9 / 360
X= 1m
( ?? ??) = 31+1
= 32
( )
(-00 48)
(-00 34)
( ?? ??)
360m m
111m X
X= / 360
X= 4m
( ?? ??) = 34+4
= 38
( )
-00 32
-00 38
06 19
12 31

7. Time
Height HW LW
Standart Port
4,0
1,1
2,9
Range
06 51
13 09 --
Seasonal change
STANDARD PORT
DIFFERENCES
Secondary Port
SECONDARY PORT
Duration
(-01 03)
(-00 31)
( ?? ??)
360m m
9 m X
X= 32.9 / 360
X= 1m
( ?? ??) = 31+1
= 32
( )
(-00 48)
(-00 34)
( ?? ??)
360m m
111m X
X= / 360
X= 4m
( ?? ??) = 34+4
= 38
( )
-00 32
-00 38
- 0,5
0,1
+0,1
+0,1
06 19
12 31
3,6
1,1
4, (- 0,6)
3, (- 0,5)
4, ( ?? )
1, ,1
0,3 X
X= 0,3.0,1 / 1,1
X= 0,02
(??)=(- 0,5 +(- 0,02))
= - 0,5
4, (- 0,5)
2, (- 0,2)
0, (- 0,1)
1, ( ?? )
1, ,1
0,4 X
X= 0,4.0,1 / 1,1
X= 0,03
(??)=(-0,1 - 0,03)
= - 0,1
1, (- 0,1)

8. Time
Height HW LW
Standart Port
4,0
1,1
2,9
Range
06 51
13 09 --
Seasonal change
STANDARD PORT
DIFFERENCES
Secondary Port
SECONDARY PORT
Duration
-00 32
-00 38
- 0,5
0,1
+0,1
+0,1
06 19
12 31
3,6
1,1
Barra (North Bay)
July
Time m ,6 ,1
DIFFERENCES

9. THIS PRESENTATION WAS PREPARED BY SELÇUK NAS
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