Basic HTML Version
700
Location : on left bank at Ban Klang.
1,374
sq.km.
WATER YEAR : 2011
SOUTHERN PENINSULA WEST COAST
Trang River at Ban Klang , Trang (X.228)
Lat 07 - 38 - 45 N Long 99 - 31 - 59 E
Drainge Area
Amphoe
Mueang
Changwat
Trang
Ban
Klang
Staff gage
+0.000 m. (MSL.)
B.M.-H.D.
Near the gage site.
Elevation
5-time daily readings at 06.00, 09.00, 12.00, 15.00 and 18.00 hours.
Arithmetic means of 5 readings
2003 to date
Rating Operation
Period of Available Gage Records
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+11.741 m. (MSL.)
Type of Gage
Bench Mark
Location BM
2003 to date
-
2003 to date
Stable.
No overbank flow.
Records good. Stage-discharge relation defined by 39 discharge measurements made in 2011.
Rated by Current Meter
Stability of Channel Regimes
Overbank Flow Conditions
General Description
Period of Rating
Rated by Flot
Date
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Annual
----------
-----------------
1
10.97
4.11
3.50
3.19
6.10
7.36
6.09
6.21
8.03
4.52
5.09
3.27
2
10.41
4.02
3.76
3.15
5.39
6.48
5.96
6.03
7.71
6.40
5.69
3.21
3
9.82
3.84
3.82
3.13
4.95
5.43
6.29
5.45
7.06
7.55
6.08
3.17
4
9.38
4.24
3.79
3.22
4.50
5.37
6.56
4.86
6.73
7.91
5.59
3.22
5
9.10
4.51
3.65
3.13
4.04
5.62
6.69
4.57
6.29
8.11
4.88
3.94
6
8.72
4.35
3.93
3.07
3.77
4.93
7.09
4.44
5.86
8.21
4.46
4.90
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Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
8.36
3.90
3.82
3.04
3.62
4.43
7.47
4.51
5.47
8.22
4.27
4.68
8
8.10
3.81
3.57
2.97
3.50
4.24
7.46
4.34
4.96
7.98
4.14
4.23
9
7.79
3.73
3.45
2.94
3.40
4.13
7.03
4.38
4.61
7.26
4.08
4.87
10
7.52
3.71
3.47
2.92
3.34
4.23
6.51
4.32
4.47
6.07
3.93
5.63
11
7.24
3.97
3.43
2.92
3.32
6.26
5.79
4.17
4.50
5.19
3.83
5.69
12
6.96
3.96
3.42
3.09
3.48
7.93
5.88
4.16
4.47
4.81
3.78
4.75
13
6.73
3.85
3.44
3.37
3.62
8.66
6.28
4.79
4.46
4.81
3.70
3.95
14
6.48
3.77
3.45
3.63
3.59
8.68
6.06
4.31
4.32
4.84
3.65
3.66
15
6.27
3.63
3.45
4.47
3.85
8.51
5.46
4.05
4.13
5.52
3.60
3.50
16
6.09
3.55
3.52
5.43
4.37
8.15
4.97
3.89
4.61
6.52
3.59
3.41
17
5.83
3.53
3.58
5.29
4.38
7.37
4.73
3.79
6.28
7.13
3.54
3.34
18
5.64
4.28
3.53
4.41
4.14
6.44
4.81
3.70
6.74
7.54
3.52
3.68
19
5.39
4.97
3.42
3.74
3.90
5.67
4.47
3.64
6.61
7.91
3.52
4.17
20
5.15
4.68
3.39
3.54
3.79
7.04
4.28
3.61
6.13
8.18
4.06
4.37
21
4.89
4.31
3.36
3.38
4.08
7.85
4.25
3.63
5.33
8.32
4.02
4.59
22
4.43
4.27
3.26
3.27
4.74
7.78
4.23
5.52
4.81
8.25
3.66
3.76
23
4.20
4.38
3.20
3.29
5.19
7.20
4.23
6.92
4.52
8.08
3.49
3.45
24
4.10
3.99
3.15
3.45
5.06
6.53
4.11
7.70
4.44
7.69
3.41
3.32
25
4.00
3.75
3.21
4.23
5.14
5.48
4.02
8.34
4.71
6.87
3.39
3.27
26
3.96
3.61
3.23
4.48
5.18
5.03
4.01
8.48
5.60
6.18
3.33
3.37
27
3.92
3.59
3.14
4.65
5.70
5.20
4.79
8.45
5.96
4.90
3.29
3.81
28
3.89
3.52
3.13
4.72
6.88
5.29
5.26
8.41
5.84
4.56
3.27
3.70
29
3.83
3.44
3.15
4.75
7.26
6.09
5.19
8.35
5.33
4.36
3.23
3.57
30
3.80
3.40
3.17
5.50
7.63
6.48
5.21
8.26
4.80
4.28
3.85
31
3.39
6.21
7.76
5.89
4.48
4.37
4.08
----------
--------------
Mean
6.43
3.94
3.45
3.83
4.70
6.33
5.52
5.44
5.46
6.53
4.00
3.95
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Max
10.97
4.97
3.93
6.21
7.76
8.68
7.47
8.48
8.03
8.32
6.08
5.69
10.97
Min
3.80
3.39
3.13
2.92
3.32
4.13
4.01
3.61
4.13
4.28
3.23
3.17
2.92
11.18
m. (MSL.) ,
0.00
m. (MSL.) ,
River Bed 1.23
m. (MSL)
12.16
m. (MSL.) ,
12.21
m. (MSL.) ,
Drainage Area 1374 Square Kilometers
at 01.00 Hours , on Apr 1 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation