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WATER YEAR : 2013
SOUTHERN PENINSULA EAST COAST
Khlong Ban Tan at Ban Wang Kong , Nakhon Si Thammarat (X.70)
Lat 08 - 25 - 34 N Long 99 - 51 - 47 E
Locat on : on e t an upstream s e o t e r ge.
36
sq.km.
Staff gage
+0.000 m. (MSL.)
B.M.-H.D.
On left bank about 10 meters from the top staff gage.
Elevation
5-time daily readings at 06.00, 09.00, 12.00, 15.00 and 18.00 hours.
Amphoe
Mueang
Changwat
Nakhon Si Thammarat
Ban
Wang Kong
Gage Reading Frequency
Zero Gage at Bottom
+21.985 m. (MSL.)
Type of Gage
Bench Mark
Location BM
Drainge Area
Arithmetic mean of 5 readings
1967 to date
1967 - 1971 , 1980 , 1989 to date
-
1967 - 1971 , 1980 , 1989 to date
Fairly stable.
No overbank flow.
Basis of Mean Daily Gage Height
Rated by Current Meter
Stability of Channel Regimes
Overbank Flow Conditions
Rating Operation
Period of Rating
Rated by Flot
Period of Available Gage Records
Records fair. Stage-discharge relation defined by 24 discharge measurements made in 2013.
Date
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Annual
----------
-----------------
1
15.75
15.83
15.71
15.78
15.71
15.58
15.62
15.80
17.13
15.84
15.79
15.70
2
15.75
16.01
15.70
15.76
15.70
15.60
15.62
15.80
16.86
15.84
15.79
15.70
3
15.75
15.99
15.70
15.76
15.70
15.60
15.60
15.80
16.72
15.82
15.78
15.69
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Gage Height in Meter (MSL.) Water Year April 1, 2013 to March 31, 2014
General Description
4
15.75
15.94
15.68
15.76
15.70
15.60
15.60
15.80
16.88
15.86
15.78
15.69
5
15.75
15.92
15.68
15.74
15.72
15.60
15.60
15.80
17.97
15.90
15.76
15.69
6
15.74
15.90
15.69
15.74
15.72
15.60
15.60
15.80
18.80
15.88
15.76
15.69
7
15.74
15.94
15.69
15.74
15.70
15.62
15.60
15.78
18.23
15.86
15.76
15.69
8
15.74
15.90
15.69
15.75
15.68
15.62
15.61
15.78
17.11
15.84
15.75
15.69
9
15.74
15.87
15.74
15.75
15.68
15.64
15.61
15.78
16.82
15.82
15.79
15.68
10
15.74
15.85
15.74
15.76
15.68
15.64
15.60
15.77
16.29
15.86
15.75
15.67
11
15.74
15.96
15.74
15.76
15.68
15.68
15.60
15.77
16.16
15.80
15.74
15.67
12
15 74
15 94
15 75
15 72
15 68
15 70
15 60
15 77
16 59
15 80
15 74
15 67
.
.
.
.
.
.
.
.
.
.
.
.
13
15.74
15.88
15.75
15.75
15.68
15.70
15.60
15.75
16.24
15.80
15.74
15.67
14
18.07
15.82
15.76
15.72
15.67
15.69
15.62
15.75
15.94
15.87
15.74
15.67
15
16.05
15.80
15.76
15.70
15.67
15.68
15.62
15.75
15.91
16.18
15.74
15.67
16
15.86
15.80
15.76
15.70
15.65
15.66
15.62
15.77
15.93
16.00
15.74
15.65
17
15.80
15.78
15.75
15.70
15.65
15.66
15.64
15.97
16.21
15.98
15.78
15.63
18
15.80
15.78
15.75
15.70
15.65
15.65
15.70
16.61
16.07
15.88
15.70
15.62
19
15.80
15.78
15.75
15.70
15.65
15.65
15.77
16.23
15.97
15.86
15.70
15.63
20
15.80
15.76
15.75
15.70
15.65
15.67
15.83
16.19
15.95
15.85
15.70
15.64
21
15.78
15.78
15.72
15.70
15.62
15.65
15.91
16.83
15.94
15.85
15.70
15.65
22
15.92
15.77
15.72
15.70
15.62
15.65
15.86
19.71
15.91
15.84
15.70
15.67
23
15.86
15.76
15.70
15.68
15.62
15.65
15.83
18.82
15.90
15.84
15.70
15.68
24
15.82
15.76
15.70
15.68
15.62
15.65
15.82
17.13
15.90
15.84
15.70
15.69
25
15.80
15.75
15.70
15.68
15.60
15.65
15.82
16.52
15.90
15.80
15.70
15.70
26
15.78
15.75
15.77
15.68
15.60
15.65
15.82
15.91
15.88
15.82
15.70
15.69
27
15.70
15.75
15.75
15.68
15.60
15.64
15.86
15.91
15.88
15.82
15.70
15.69
28
15.78
15.75
15.76
15.70
15.60
15.64
15.86
16.16
15.86
15.82
15.70
15.68
29
15.78
15.76
15.75
15.70
15.68
15.66
15.90
16.84
15.85
15.80
15.68
30
15.78
15.77
15.75
15.70
15.68
15.64
15.89
17.93
15.84
15.80
15.67
31
15.79
15.73
15.68
15.81
15.80
15.80
15.67
----------
--------------
Mean
15.86
15.83
15.73
15.72
15.66
15.64
15.71
16.31
16.40
15.86
15.74
15.67
Max
18.07
16.01
15.77
15.78
15.72
15.70
15.91
19.71
18.80
16.18
15.79
15.70
19.71
Min
15.70
15.75
15.68
15.68
15.60
15.58
15.60
15.75
15.80
15.80
15.70
15.62
15.58
20.61
m. (MSL.) ,
0.00
m. (MSL.) ,
River Bed 15.37
m. (MSL.)
22.24
m. (MSL.) ,
22.20
m. (MSL.) ,
Drainage Area
36
Square Kilometers
at 08.00 Hours , on Nov 22 , 2013
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation
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