Basic HTML Version
684
Location : on left bank at Ban Pa Mak.
2,808
sq.km.
WATER YEAR : 2012
SOUTHERN PENINSULA WEST COAST
Lower Trang River at Ban Pa Mak , Trang (X.234)
Lat 07 - 35 - 21 N Long 99 - 34 - 39 E
Drainge Area
Amphoe
Mueang
Changwat
Trang
Ban
Pa Mak
Water - stage recorder
+0.000 m. (MSL.)
B.M.-H.D.
On left bank near the top staff gage.
Elevation
Recording
Arithmetic mean of 24 readings
2004 to date
Rating Operation
Period of Available Gage Records
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+6.388 m. (MSL.)
Type of Gage
Bench Mark
Location BM
2004 to date
-
2004 to date
Stable.
No overbank flow.
Records good. Stage-discharge relation defined by 31 discharge measurements made in 2012.
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
1.42
1.44
2.28
0.96
1.06
2.78
3.46
1.13
2.79
3.96
0.90
1.49
2
1.12
1.36
1.83
1.09
1.08
1.94
2.82
1.25
2.40
4.24
0.82
1.41
3
0.94
1.22
1.70
1.17
1.07
1.46
2.38
1.35
2.00
4.34
0.73
1.11
4
1.42
1.29
1.66
1.27
1.08
1.26
2.18
1.59
1.71
4.37
0.59
0.89
5
2.54
1.34
1.88
1.57
1.04
1.13
1.87
1.59
1.42
4.27
0.48
0.68
6
3.20
1.50
2.71
1.63
0.99
1.18
1.88
1.58
1.21
3.98
0.48
0.52
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (MSL.) Water Year April 1, 2012 to March 31, 2013
7
3.37
1.50
3.62
1.56
0.88
1.43
2.09
1.36
1.06
3.44
0.56
0.49
8
2.97
1.47
4.39
2.11
0.76
1.62
2.18
1.24
0.99
2.75
0.68
0.57
9
2.14
1.51
5.35
2.72
0.65
1.48
2.03
1.25
0.94
2.22
0.78
0.69
10
1.57
1.50
6.09
3.04
0.52
1.10
1.69
1.23
0.97
1.95
0.84
0.79
11
1.38
1.34
6.15
2.87
0.39
0.91
1.56
1.26
1.16
1.80
0.88
0.85
12
1.30
1.18
5.98
2.42
0.34
1.32
1.95
1.75
1.50
1.74
0.91
0.87
13
1.18
1.02
5.69
2.00
0.40
2.24
2.35
2.42
1.65
1.97
0.93
0.81
14
1.10
0.87
5.25
1.61
0.52
3.09
2.57
2.60
1.43
1.97
0.90
0.73
15
1.28
0.80
4.78
1.38
0.62
3.59
2.65
2.30
1.40
1.70
0.85
0.66
16
1.43
0.84
4.07
1.28
0.69
3.76
2.58
1.83
2.11
1.47
0.72
0.63
17
1.41
0.89
3.17
1.20
0.80
3.65
2.36
1.55
2.71
1.29
0.58
0.49
18
1.37
1.05
2.38
1.16
0.88
3.27
2.14
1.40
2.71
1.16
0.41
0.47
19
1.36
1.09
1.94
1.16
0.94
2.69
2.00
1.52
2.25
1.03
0.28
0.37
20
1.58
1.04
1.72
1.22
1.04
2.12
1.78
1.79
1.79
0.90
0.22
0.26
21
1.83
0.98
1.58
1.31
1.04
1.75
1.66
1.80
1.61
0.84
0.27
0.12
22
2.57
0.97
1.47
1.25
0.97
1.78
1.61
1.63
1.70
0.84
0.38
0.11
23
2.78
0.97
1.40
1.18
0.89
1.99
1.62
1.46
2.00
0.86
0.45
0.20
24
2.32
0.95
1.32
1.12
0.86
1.81
1.58
1.34
2.71
0.90
0.57
0.35
25
1.83
1.05
1.22
1.17
1.22
1.69
1.60
1.44
3.34
0.95
0.80
0.31
26
1.52
1.36
1.13
1.51
1.65
1.94
1.74
1.49
3.61
0.97
1.33
0.60
27
1.46
1.74
1.03
1.47
1.94
2.81
1.63
1.75
3.72
0.99
1.57
0.60
28
1.73
2.39
0.94
1.01
2.62
3.41
1.43
1.84
3.71
0.97
1.52
0.58
29
1.71
3.13
0.88
0.87
3.39
3.68
1.30
2.41
3.29
0.97
0.59
30
1.42
3.18
0.89
0.94
3.64
3.73
1.22
2.75
2.65
0.95
0.58
31
2.93
1.01
3.45
1.16
3.32
0.94
0.53
----------
--------------
Mean
1.77
1.42
2.82
1.49
1.21
2.22
1.97
1.66
2.12
1.96
0.73
0.62
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Max
3.37
3.18
6.15
3.04
3.64
3.76
3.46
2.75
3.72
4.37
1.57
1.49
6.15
Min
0.94
0.80
0.88
0.87
0.34
0.91
1.16
1.13
0.94
0.84
0.22
0.11
0.11
6.19
m. (MSL.) ,
0.00
m. (MSL.) ,
River Bed -1.62
m. (MSL.)
6.65
m. (MSL.) ,
6.68
m. (MSL.) ,
Drainage Area 2808 Square Kilometers
at 05.00 Hours , on Jun 11 , 2012
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation