Basic HTML Version
614
Location : on left bank at the bridge.
2,045
sq.km.
WATER YEAR : 2012
SOUTHERN PENINSULA EAST COAST
Khlong Tha Taphao at Mueang , Chumphon (X.180)
Lat 10 - 29 - 42 N Long 99 - 10 - 23 E
Amphoe
Mueang
Changwat
Chumphon
Ban
-
Drainge Area
Staff gage
+0.000 m. (MSL.)
B.M.-H.D.
On left bank at the abutment of the bridge.
Elevation
5-time daily readings at 06.00, 09.00, 12.00, 15.00 and 18.00 hours.
Arithmetic mean of 5 readings
1995 to date
+5.896 m. (MSL.)
Bench Mark
Type of Gage
Rating Operation
Period of Available Gage Records
Location BM
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
1995 to date
-
1995 to date
Fairly stable because of backwater effect.
No overbank flow.
Records fair. Stage-discharge relation defined by 28 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
0.42
0.07
0.20
0.12
0.09
0.11
0.59
0.52
2.23
0.78
0.53
0.23
2
0.43
0.25
0.00
0.17
-0.01
0.29
0.49
0.76
1.63
0.65
0.44
0.29
3
0.40
0.10
0.07
0.20
0.01
0.32
0.71
0.75
0.75
0.73
0.36
0.26
4
0.50
0.15
0.49
0.19
0.18
0.41
0.53
0.83
0.69
0.71
0.41
0.24
5
0.48
0.25
2.12
0.30
0.11
0.49
0.65
0.77
0.83
0.89
0.23
0.19
6
0.67
0.15
2.46
0.34
0.03
0.37
0.71
0.76
0.81
0.86
0.46
0.28
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (MSL.) Water Year April 1, 2012 to March 31, 2013
7
0.40
0.25
1.63
0.21
0.02
0.62
0.49
0.71
0.68
0.69
0.28
0.42
8
0.47
0.23
1.20
0.28
0.13
0.44
0.68
0.69
0.83
0.79
0.55
0.26
9
0.25
0.07
0.95
0.37
0.07
0.44
0.63
0.67
0.79
0.72
0.58
0.38
10
0.20
-0.02
0.60
0.27
-0.02
0.34
0.59
0.65
0.87
0.64
0.61
0.25
11
0.17
-0.15
0.40
0.29
0.27
0.37
0.46
0.49
0.97
0.72
0.27
0.33
12
0.17
0.22
0.83
0.18
0.24
0.26
0.36
0.56
1.07
0.68
0.52
0.21
13
0.45
-0.10
0.85
0.22
0.07
0.21
0.34
0.57
1.03
0.66
0.45
0.18
14
0.33
-0.06
0.50
0.20
0.12
0.25
0.43
0.65
1.03
0.72
0.52
0.30
15
0.40
-0.04
0.30
0.27
0.08
0.36
0.47
0.67
1.17
0.71
0.64
0.32
16
0.47
-0.03
0.18
0.14
0.15
0.52
0.59
0.93
1.15
0.76
0.57
0.32
17
0.45
-0.18
0.20
0.09
0.07
0.38
1.02
0.93
1.10
0.92
0.63
0.51
18
0.35
-0.02
0.28
-0.30
0.10
0.48
0.77
0.90
1.22
0.70
0.61
0.46
19
0.40
0.13
0.20
-0.05
0.25
0.45
0.83
0.75
1.07
0.62
0.64
0.48
20
0.22
0.31
0.07
0.07
0.12
0.54
0.89
0.76
0.94
0.62
0.61
0.50
21
0.23
-0.03
-0.12
0.05
0.03
0.73
0.95
0.65
0.67
0.80
0.75
0.20
22
0.32
-0.03
-0.03
0.03
0.17
0.64
0.93
0.59
0.72
0.79
0.75
0.23
23
0.20
-0.08
0.18
0.08
0.08
0.53
0.79
0.54
0.74
0.88
0.69
0.41
24
0.18
0.09
0.13
0.05
0.02
0.43
0.84
0.63
0.83
0.65
0.67
0.49
25
0.17
-0.08
0.13
0.12
0.05
0.51
0.82
0.73
0.91
0.92
0.80
0.57
26
-0.07
0.15
0.03
0.19
0.45
0.54
0.68
0.67
0.92
0.87
0.74
0.59
27
-0.03
0.22
0.02
0.03
0.17
0.52
0.50
1.90
0.78
0.82
0.75
0.48
28
-0.03
0.27
0.08
0.27
0.15
0.27
0.41
2.09
0.64
0.90
0.70
0.54
29
0.03
0.33
0.13
0.10
0.25
0.44
0.54
2.09
0.90
0.94
0.59
30
0.07
0.33
0.17
0.24
0.27
0.28
0.61
1.93
0.89
0.88
0.49
31
0.27
0.27
0.15
0.58
0.77
0.88
0.36
----------
--------------
Mean
0.29
0.10
0.48
0.16
0.12
0.42
0.64
0.87
0.96
0.77
0.56
0.37
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Max
0.67
0.33
2.46
0.37
0.45
0.73
1.02
2.09
2.23
0.94
0.80
0.59
2.46
Min
-0.07
-0.18
-0.12
-0.30
-0.02
0.11
0.34
0.49
0.64
0.62
0.23
0.18
-0.30
2.78
m. (MSL.) ,
0.00
m. (MSL.) ,
River Bed -5.40
m. (MSL.)
6.47
m. (MSL.) ,
7.08
m. (MSL.) ,
Drainage Area 2045 Square Kilometers
at 02.00 Hours , on Jun 6 , 2012
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation