Basic HTML Version
704
Location : on left bank at Ban Pa Mak.
2,808
sq.km.
Amphoe
Mueang
Changwat
Trang
Ban
Pa Mak
WATER YEAR : 2011
SOUTHERN PENINSULA WEST COAST
Trang River at Ban Pa Mak , Trang (X.234)
Lat 07 - 35 - 21 N Long 99 - 34 - 39 E
Drainge Area
Water - stage recorder
+0.000 m. (MSL.)
B.M.-H.D.
On left bank near the top staff gage.
Elevation
Recording
Arithmetic means of 24 readings
2004 to date
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+6.388 m. (MSL.)
Type of Gage
Bench Mark
Location BM
Rating Operation
Period of Available Gage Records
2004 to date
-
2004 to date
Stable.
Overbank flow starts at elevation +6.660 m.(MSL.), records are channel flow only.
Records good. Stage-discharge relation defined by 52 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
7.02
1.35
1.05
0.89
2.99
4.21
3.16
2.98
4.78
1.85
1.93
0.65
2
6.63
1.41
1.16
0.94
2.71
3.78
3.03
2.98
4.52
2.82
2.41
0.59
3
6.25
1.32
1.31
0.99
2.47
3.01
3.04
2.63
4.15
3.78
2.78
0.53
4
5.87
1.52
1.29
0.98
2.05
2.45
3.16
2.13
3.63
4.16
2.72
0.56
5
5.56
1.72
1.20
0.94
1.66
2.64
3.25
1.80
3.36
4.42
2.22
0.88
6
5.36
1.69
1.22
0.96
1.39
2.23
3.53
1.70
3.07
4.61
1.81
1.86
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
5.22
1.48
1.32
0.93
1.12
1.69
3.82
1.69
2.68
4.74
1.67
2.05
8
5.09
1.25
1.11
0.87
0.93
1.52
3.97
1.66
2.34
4.67
1.54
1.82
9
4.96
1.13
0.96
0.78
0.76
1.43
3.84
1.61
2.02
4.31
1.52
2.05
10
4.80
1.11
0.91
0.64
0.77
1.52
3.46
1.66
1.84
3.58
1.46
2.56
11
4.53
1.13
0.83
0.56
0.85
2.70
3.04
1.61
1.84
2.82
1.46
2.81
12
4.05
1.24
0.90
0.72
0.97
3.95
2.87
1.56
1.86
2.29
1.45
2.36
13
3.42
1.23
0.99
0.97
1.13
4.83
2.99
1.92
1.82
2.15
1.22
1.67
14
2.84
1.22
1.07
1.15
1.19
5.70
2.97
1.77
1.75
2.14
1.13
1.28
15
2.40
1.19
1.08
1.59
1.28
5.66
2.67
1.49
1.61
2.37
0.95
1.01
16
2.15
1.12
1.22
2.38
1.53
5.25
2.25
1.32
1.79
3.01
0.86
0.83
17
2.01
1.12
1.18
2.52
1.69
4.48
2.00
1.19
2.85
3.48
0.79
0.73
18
2.09
1.41
1.15
2.08
1.57
3.80
1.96
1.08
3.41
3.79
0.77
0.83
19
2.15
1.91
1.06
1.46
1.37
3.20
1.76
0.97
3.48
4.09
0.90
1.28
20
2.11
2.03
0.99
1.24
1.18
3.70
1.51
0.93
3.26
4.39
1.19
1.60
21
2.12
1.78
0.83
1.09
1.23
4.16
1.43
0.98
2.75
4.74
1.49
1.92
22
1.96
1.54
0.82
1.17
1.49
4.35
1.41
1.97
2.23
4.88
1.30
1.55
23
1.65
1.57
0.78
0.88
2.07
4.17
1.46
3.25
1.95
4.77
1.10
1.25
24
1.43
1.37
0.63
0.86
2.11
3.64
1.44
3.93
1.86
4.52
1.05
1.14
25
1.28
1.16
0.61
1.20
2.06
2.98
1.46
4.49
1.94
3.95
0.99
1.10
26
1.16
0.88
0.52
1.61
2.18
2.46
1.47
5.03
2.42
3.14
1.04
1.13
27
1.09
0.83
0.56
1.78
2.51
2.41
1.81
5.24
2.84
2.43
0.92
1.27
28
1.08
0.82
0.62
1.86
3.35
2.56
2.25
5.21
2.89
2.00
0.92
1.33
29
1.08
0.85
0.77
1.89
3.80
2.95
2.32
5.12
2.63
1.78
0.72
1.00
30
1.14
0.92
0.80
2.28
4.08
3.24
2.29
4.99
2.20
1.62
0.98
31
1.00
2.87
4.21
2.69
1.87
1.57
1.43
----------
--------------
Mean
3.28
1.30
0.96
1.33
1.89
3.36
2.53
2.50
2.63
3.38
1.39
1.36
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Max
7.02
2.03
1.32
2.87
4.21
5.70
3.97
5.24
4.78
4.88
2.78
2.81
7.02
Min
1.08
0.82
0.52
0.56
0.76
1.43
1.41
0.93
1.61
1.57
0.72
0.53
0.52
7.14
m. (MSL.) ,
0.00
m. (MSL.) ,
River Bed -2.11
m. (MSL)
6.65
m. (MSL.) ,
6.68
m. (MSL.) ,
Drainage Area 2808 Square Kilometers
at 08.00 Hours , on Apr 1 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation