Basic HTML Version
500
Location : on left bank at Ban Nong Bua.
14,444 sq.km.
WATER YEAR : 2011
MAE KLONG RIVER BASIN
Khwae Yai River at Ban Nong Bua , Kanchanaburi (K.35A)
Lat 14 - 03 - 22 N Long 99 - 27 - 32 E
Amphoe
Mueang
Changwat
Kanchanaburi
Ban
Nong Bua
Drainge Area
Water - stage recorder
+21.498 m. (MSL.)
B.M.-H.D.
On left bank about 3 meters from the third staff gage.
Elevation
Recording
Arithmetic means of 24 readings
1984 to date
+26.975 m. (MSL.)
Rating Operation
Period of Available Gage Records
Bench Mark
Location BM
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
Type of Gage
1984 - 1985 , 1987 to date
-
1984 - 1985 , 1987 to date
Stable.
No overbank flow.
Records good. Flow regulated by Sri Nakarindra Dam.
Stage-discharge relation defined by 35 discharge measurements made in 2011
Overbank Flow Conditions
General Description
Period of Rating
Rated by Flot
Rated by Current Meter
Stability of Channel Regimes
Date
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Annual
----------
-----------------
1
25.77
25.80
25.53
24.67
24.06
25.33
25.66
25.38
25.31
24.93
26.00
26.50
2
25.83
25.83
25.42
24.84
24.08
25.32
26.01
25.64
25.13
25.16
25.99
26.43
3
25.77
25.82
25.60
24.65
25.56
25.12
25.82
25.42
25.10
25.37
26.01
26.39
4
25.62
25.90
25.52
24.95
25.23
24.45
26.00
25.74
24.93
25.52
26.01
26.20
5
25.70
25.72
25.35
24.77
25.21
24.03
25.99
25.60
25.50
25.19
25.92
25.64
6
25.81
25.73
25.70
24.93
25.29
24.35
25.95
25.57
25.07
25.40
26.06
26.33
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
25.73
25.67
25.37
24.86
25.15
24.21
26.15
25.43
25.11
25.32
26.12
26.30
8
25.81
25.71
25.63
24.36
25.45
24.33
25.96
25.58
25.14
24.69
26.25
26.30
9
25.72
25.64
25.43
23.57
25.16
24.31
26.06
25.47
25.09
24.62
26.38
26.34
10
25.85
25.94
25.55
23.80
25.34
24.12
26.13
25.51
25.13
25.30
26.47
26.30
11
25.69
25.77
25.47
23.83
25.32
24.03
25.93
25.57
24.84
25.38
26.51
26.37
12
25.74
25.93
25.45
23.75
24.87
23.91
26.34
25.58
25.30
25.29
26.48
26.39
13
25.85
25.78
25.34
23.92
24.61
24.35
26.10
25.48
25.24
25.60
26.48
26.30
14
25.78
25.87
25.15
23.93
24.31
25.08
26.27
25.51
25.13
25.39
26.49
26.34
15
25.82
25.92
25.24
24.12
24.03
26.05
26.26
25.63
25.07
25.03
26.46
26.30
16
25.81
25.61
25.21
23.75
24.32
25.86
26.28
25.38
25.20
24.65
26.42
26.21
17
25.75
25.48
25.19
24.04
24.50
26.07
26.17
25.51
25.12
25.08
26.46
26.09
18
25.79
25.46
25.30
24.15
24.13
24.62
26.28
25.57
25.25
25.61
26.49
26.06
19
25.70
25.35
25.43
24.05
24.26
25.30
26.49
25.58
24.94
25.48
26.52
25.97
20
25.83
25.70
24.95
24.34
24.04
26.00
26.41
25.46
24.98
25.37
26.48
25.99
21
25.77
25.48
24.83
24.20
23.93
25.99
26.03
25.63
25.18
25.46
26.52
26.00
22
25.85
25.40
24.84
23.90
24.19
26.00
26.51
25.48
25.13
24.79
26.54
26.00
23
25.78
25.40
24.80
24.02
24.77
25.98
26.20
25.54
25.30
25.05
26.47
26.00
24
25.76
25.33
24.61
23.73
24.66
25.97
26.14
25.59
24.98
25.06
26.46
25.96
25
25.81
25.27
24.82
24.28
25.87
24.61
26.05
25.36
25.13
25.63
26.42
26.02
26
25.84
25.34
24.90
23.97
25.85
25.29
25.92
25.62
25.15
25.94
26.41
25.90
27
25.94
25.39
24.83
24.10
25.13
25.94
25.94
25.52
25.04
26.06
26.43
26.03
28
25.89
25.46
24.74
23.99
24.14
25.91
26.06
25.48
25.05
26.01
26.46
26.01
29
25.89
25.36
24.79
23.97
24.59
25.81
25.92
25.57
25.30
25.98
26.45
26.01
30
25.79
25.40
24.83
23.97
25.35
25.98
25.90
25.35
25.24
25.97
26.01
31
25.19
24.07
25.31
25.60
25.24
25.98
25.99
----------
--------------
Mean
25.79
25.60
25.19
24.18
24.80
25.14
26.08
25.52
25.14
25.36
26.35
26.15
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Max
25.94
25.94
25.70
24.95
25.87
26.07
26.51
25.74
25.50
26.06
26.54
26.50
26.54
Min
25.62
25.19
24.61
23.57
23.93
23.91
25.60
25.35
24.84
24.62
25.92
25.64
23.57
26.83
m. (MSL.) ,
21.50
m. (MSL.) ,
River Bed 22.61
m. (MSL)
26.95
m. (MSL.) ,
27.10
m. (MSL.) ,
Drainage Area 14444 Square Kilometers
Left Bank Elevation
Right Bank Elevation
at 02.00 Hours , on Oct 21 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation