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32
Location : on right bank at Ban Bang Sai
115
sq.km.
Drainge Area
WATER YEAR : 2011
KHONG RIVER BASIN
Huai Bang Sai at Ban Bang Sai , Mukdahan (Kh.99A)
Lat 16 - 42 - 05 N Long 104 - 14 - 46 E
Amphoe
Dong Luang
Changwat
Mukdahan
Ban
Bang Sai
Staff gage
+248.500 m. (MSL.)
B.M.- H.D.
On right bank near the gage site.
Elevation
3-time daily readings at 06.00, 12.00 and 18.00 hours.
Arithmetic means of 3 readings.
2005 to date
Rating Operation
Period of Available Gage Records
Location BM
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+255.082 m. (MSL.)
Bench Mark
Type of Gage
2005 to date
-
2005 to date
Fairly stable.
No overbank flow.
Records fair. Stage-discharge relation defined by 16 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
250.80
250.79
250.82
251.18
251.27
251.22
251.04
250.98
250.91
250.91
250.85
250.83
2
250.80
250.79
250.82
251.05
251.17
251.14
251.10
250.97
250.91
250.91
250.85
250.83
3
250.80
250.79
251.00
251.02
251.09
251.26
251.08
250.97
250.91
250.91
250.85
250.83
4
250.80
250.79
250.93
250.91
251.06
251.47
251.05
250.97
250.91
250.91
250.85
250.83
5
250.80
250.79
250.86
250.87
251.02
251.28
251.03
250.97
250.91
250.91
250.85
250.83
6
250.81
250.79
250.85
250.86
251.02
251.27
251.03
250.96
250.91
250.91
250.85
250.83
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Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
250.90
250.79
250.84
250.86
251.29
251.21
251.02
250.96
250.91
250.89
250.85
250.83
8
250.89
250.79
250.83
250.85
251.22
251.17
251.00
250.96
250.89
250.89
250.84
250.83
9
250.88
250.79
250.82
250.85
251.74
251.27
250.99
250.96
250.89
250.89
250.84
250.84
10
250.87
250.79
250.82
251.06
251.35
251.19
250.98
250.96
250.89
250.88
250.84
250.85
11
250.86
250.79
250.81
250.93
251.16
251.19
250.97
250.95
250.88
250.88
250.84
250.85
12
250.85
250.81
250.80
250.89
251.16
251.21
251.12
250.95
250.88
250.88
250.84
250.84
13
250.84
250.97
250.80
250.90
251.10
251.18
251.04
250.94
250.88
250.88
250.84
250.83
14
250.83
250.89
250.79
251.03
251.21
251.17
251.21
250.94
250.88
250.88
250.84
250.85
15
250.82
250.95
250.79
251.09
251.26
251.27
251.10
250.94
250.88
250.88
250.84
250.82
16
250.81
250.97
250.81
251.01
251.41
251.19
251.04
250.94
250.88
250.88
250.84
250.84
17
250.80
250.96
250.83
250.97
251.20
251.24
251.08
250.94
250.88
250.88
250.84
250.99
18
250.80
250.89
250.81
250.92
251.19
251.21
251.05
250.94
250.88
250.88
250.83
250.94
19
250.80
250.88
250.86
250.90
251.55
251.23
251.03
250.93
250.88
250.88
250.83
250.94
20
250.80
250.93
250.90
250.91
251.31
251.16
251.03
250.93
250.88
250.88
250.83
250.93
21
250.79
250.87
250.99
251.33
251.20
251.14
251.01
250.93
250.88
250.88
250.83
250.91
22
250.80
250.85
250.89
251.22
251.15
251.13
250.99
250.92
250.88
250.88
250.83
250.86
23
250.80
250.85
250.86
251.04
251.13
251.12
250.98
250.91
250.88
250.88
250.83
250.85
24
250.80
250.81
250.84
251.02
251.14
251.10
250.97
250.91
250.88
250.88
250.83
250.85
25
250.80
250.80
250.84
251.18
251.12
251.07
250.96
250.91
250.88
250.88
250.83
250.84
26
250.79
250.81
250.83
251.07
251.09
251.08
250.95
250.91
250.88
250.88
250.83
250.83
27
250.79
250.80
250.83
251.09
251.12
251.08
250.96
250.91
250.88
250.88
250.83
250.83
28
250.79
250.80
250.82
251.05
251.10
251.07
250.94
250.91
250.88
250.88
250.83
250.83
29
250.79
250.80
250.82
251.00
251.08
251.06
250.94
250.91
250.88
250.88
250.83
250.83
30
250.79
250.79
250.82
251.03
251.18
251.06
250.93
250.91
250.88
250.88
250.83
31
250.79
251.14
251.15
250.93
250.88
250.88
250.83
----------
--------------
Mean
250.82
250.84
250.84
251.01
251.20
251.18
251.02
250.94
250.89
250.89
250.84
250.85
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Max
250.90
250.97
251.00
251.33
251.74
251.47
251.21
250.98
250.91
250.91
250.85
250.99
251.74
Min
250.79
250.79
250.79
250.85
251.02
251.06
250.93
250.91
250.88
250.88
250.83
250.82
250.79
251.83
m. (MSL.) ,
248.50
m. (MSL.) ,
River Bed 250.49
m. (MSL)
254.56
m. (MSL.) ,
255.18
m. (MSL.) ,
Drainage Area 115 Square Kilometers
at 18.00 Hours , on Aug 9 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation