Basic HTML Version
630
Location : on right bank at the bridge.
122
sq.km.
Drainge Area
WATER YEAR : 2011
SOUTHERN PENINSULA EAST COAST
Upper Khlong Chumphon at Ban Tha Mai Lai , Chumphon (X.201A)
Lat 10 - 30 - 12 N Long 98 - 57 - 52 E
Amphoe
Mueang
Changwat
Chumphon
Ban
Tha Mai Lai
Water - stage recorder
+0.000 m. (MSL.)
B.M.-H.D.
On right bank at the abutment of the bridge.
Elevation
Recording
Arithmetic means of 24 readings
2009 to date
Rating Operation
Period of Available Gage Records
Location BM
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+42.444 m. (MSL.)
Bench Mark
Type of Gage
2009 to date
-
2009 to date
Stable.
No overbank flow.
Records fair. Stage-discharge relation defined by 33 discharge measurements made in 2011.
Period of Rating
Rated by Flot
Rated by Current Meter
Stability of Channel Regimes
Overbank Flow Conditions
General Description
Date
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Annual
----------
-----------------
1
37.46
37.07
37.25
37.40
38.19
37.77
38.31
37.34
37.17
37.05
37.26
36.99
2
37.40
37.12
37.24
37.58
37.95
37.84
38.75
37.29
37.17
37.25
37.25
36.99
3
37.32
37.12
37.22
37.61
37.74
37.83
38.65
37.29
37.16
39.02
37.22
36.99
4
37.28
37.08
37.20
37.43
37.72
37.76
38.81
37.29
37.17
37.45
37.17
36.99
5
37.62
37.17
37.19
37.34
37.64
37.69
38.52
37.28
37.16
37.33
37.12
37.00
6
37.51
37.20
37.18
37.31
37.56
37.63
38.18
37.26
37.16
37.22
37.09
36.99
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
37.50
37.42
37.17
37.29
37.54
37.60
37.98
37.25
37.15
37.18
37.08
36.98
8
37.38
37.45
37.15
37.28
37.50
37.58
37.87
37.24
37.15
37.16
37.07
36.99
9
37.31
37.65
37.21
37.26
37.53
37.64
37.80
37.29
37.16
37.15
37.06
36.99
10
37.26
38.30
37.34
37.27
37.50
38.11
37.77
37.26
37.16
37.14
37.06
37.00
11
37.28
37.95
37.44
37.29
37.52
38.35
37.73
37.25
37.16
37.14
37.05
37.00
12
37.22
37.82
37.59
37.29
37.66
38.64
37.74
37.29
37.15
37.12
37.05
36.98
13
37.19
37.62
37.62
37.28
37.48
38.23
37.64
37.35
37.15
37.10
37.05
36.98
14
37.18
37.53
37.44
37.32
37.45
38.03
37.62
37.29
37.15
37.09
37.05
36.98
15
37.16
37.45
37.42
37.39
37.42
37.91
37.57
37.31
37.13
37.09
37.05
36.98
16
37.16
37.42
37.56
37.49
37.39
37.81
37.53
37.31
37.14
37.09
37.06
36.98
17
37.14
37.41
37.47
37.52
37.39
37.73
37.50
37.26
37.13
37.08
37.06
36.97
18
37.14
37.41
37.57
37.39
37.37
37.74
37.48
37.24
37.12
37.08
37.17
36.98
19
37.12
37.39
37.77
37.33
37.35
38.47
37.46
37.23
37.11
37.07
37.09
36.98
20
37.11
37.47
37.66
37.27
37.35
38.43
37.43
37.22
37.10
37.07
37.08
36.95
21
37.10
37.42
37.58
37.28
37.32
38.57
37.45
37.21
37.10
37.07
37.06
36.94
22
37.10
37.35
37.58
37.44
37.30
38.30
37.50
37.20
37.10
37.07
37.04
36.94
23
37.11
37.31
37.52
37.41
37.30
38.50
37.45
37.20
37.10
37.06
37.03
36.94
24
37.10
37.29
37.44
38.19
37.35
38.49
37.43
37.43
37.10
37.06
37.03
36.94
25
37.09
37.28
37.40
38.08
37.48
38.37
37.44
37.29
37.11
37.06
37.02
36.93
26
37.07
37.35
37.38
38.03
37.64
38.27
37.53
37.24
37.09
37.05
37.02
36.98
27
37.05
37.34
37.40
38.02
38.62
38.79
37.45
37.22
37.09
37.06
37.01
36.95
28
37.05
37.29
37.37
38.38
40.16
38.67
37.39
37.21
37.08
37.06
37.00
36.94
29
37.04
37.27
37.34
38.06
39.11
38.45
37.37
37.21
37.08
37.07
37.00
36.94
30
37.11
37.26
37.34
38.81
38.58
38.31
37.36
37.19
37.08
37.06
36.93
31
37.24
38.34
38.18
37.34
37.07
37.38
36.94
----------
--------------
Mean
37.22
37.40
37.40
37.59
37.75
38.12
37.74
37.26
37.13
37.19
37.08
36.97
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Max
37.62
38.30
37.77
38.81
40.16
38.79
38.81
37.43
37.17
39.02
37.26
37.00
40.16
Min
37.04
37.07
37.15
37.26
37.30
37.58
37.34
37.19
37.07
37.05
37.00
36.93
36.93
40.47
m. (MSL.) ,
0.00
m. (MSL.) ,
River Bed 36.35
m. (MSL)
42.50
m. (MSL.) ,
42.54
m. (MSL.) ,
Drainage Area 122 Square Kilometers
at 18.00 Hours , on Sep 27 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation