Basic HTML Version
26
Location : on left bank at the bridge on highway.
172
sq.km.
Drainge Area
WATER YEAR : 2011
KHONG RIVER BASIN
Huai Chanot at Ban Don Sawan , Nakhon Phanom (Kh.91)
Lat 16 - 47 - 48 N Long 104 - 39 - 45 E
Amphoe
That Phanom
Changwat
Nakhon Phanom
Ban
Don Sawan
Staff gage
+149.000 m. (MSL.)
B.M.- Highways Dept.
On left bank at the footpath of the bridge.
Elevation
3-time daily readings at 06.00 , 12.00 and 18.00 hours.
Arithmetic means of 3 readings
1996 to date
Rating Operation
Period of Available Gage Records
Location BM
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+159.228 m. (MSL.)
Bench Mark
Type of Gage
1996 to date
-
1996 to date
Stable.
Overbank flow starts at elevation +153.370 m.(MSL.), records are channel flow only.
Records good. Stage-discharge relation defined by 21 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
150.02
149.88
149.98
152.65
152.98
151.51
151.28
150.51
150.21
150.19
150.21
150.08
2
150.00
149.86
150.24
154.25
153.20
152.39
151.24
150.49
150.20
150.18
150.25
150.07
3
149.98
149.86
150.19
153.20
153.31
152.88
151.21
150.49
150.20
150.18
150.24
150.05
4
149.98
149.86
150.16
152.06
153.14
153.67
151.18
150.48
150.20
150.18
150.21
150.05
5
149.96
149.85
150.28
151.10
152.84
153.82
151.14
150.47
150.20
150.19
150.18
150.10
6
149.94
149.85
150.43
150.66
152.59
153.87
151.11
150.46
150.20
150.22
150.14
150.10
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Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
149.93
149.85
150.55
150.54
153.24
153.68
151.02
150.41
150.21
150.24
150.10
150.05
8
150.00
149.87
150.35
150.50
153.92
153.09
150.99
150.43
150.23
150.22
150.08
150.05
9
150.05
150.00
150.26
150.50
154.12
153.33
150.95
150.42
150.24
150.18
150.09
150.05
10
150.05
149.92
150.17
150.70
154.63
153.47
150.83
150.40
150.21
150.15
150.17
150.05
11
150.04
149.90
150.16
150.73
154.05
153.15
150.76
150.39
150.20
150.15
150.19
150.07
12
149.97
149.88
150.07
150.78
153.34
153.72
150.75
150.38
150.19
150.17
150.19
150.10
13
149.94
149.89
150.00
151.32
152.79
153.77
150.93
150.36
150.18
150.17
150.16
150.03
14
149.92
149.97
150.00
151.76
152.22
153.56
151.54
150.35
150.21
150.18
150.12
150.00
15
149.90
150.71
150.00
152.22
152.05
153.48
153.18
150.40
150.26
150.23
150.09
150.00
16
149.87
150.50
150.01
152.69
151.91
153.42
153.09
150.40
150.30
150.37
150.10
150.00
17
149.86
150.50
150.20
152.30
151.95
153.47
152.43
150.36
150.25
150.32
150.10
150.01
18
149.86
150.34
150.36
151.48
152.08
153.78
151.92
150.33
150.21
150.23
150.10
150.15
19
149.89
150.35
150.45
150.92
153.31
153.43
151.47
150.29
150.23
150.20
150.09
150.19
20
149.90
150.44
150.50
150.66
154.68
152.87
151.16
150.29
150.21
150.22
150.09
150.17
21
149.89
150.34
150.32
151.41
154.24
152.44
151.02
150.25
150.21
150.37
150.08
150.14
22
149.89
150.22
150.55
152.23
153.49
152.07
150.75
150.27
150.20
150.61
150.08
150.10
23
149.88
150.12
150.55
152.15
152.87
151.83
150.62
150.28
150.20
151.14
150.07
150.01
24
149.90
150.04
150.33
151.85
152.34
151.61
150.76
150.35
150.18
150.70
150.05
150.00
25
149.90
149.99
150.29
151.44
152.00
151.40
150.72
150.34
150.18
150.46
150.05
149.99
26
149.89
149.95
150.28
151.07
151.77
151.32
150.66
150.29
150.19
150.33
150.05
150.00
27
149.88
149.91
150.22
150.69
151.48
151.32
150.63
150.25
150.21
150.25
150.08
150.00
28
149.88
149.90
150.24
150.88
151.18
151.44
150.62
150.21
150.25
150.23
150.08
149.98
29
149.89
149.90
150.60
150.88
151.10
151.37
150.60
150.21
150.22
150.21
150.08
149.98
30
149.88
149.88
151.15
151.67
151.02
151.33
150.60
150.21
150.21
150.18
149.98
31
149.87
152.50
151.15
150.57
150.21
150.17
149.98
----------
--------------
Mean
149.93
150.05
150.30
151.54
152.74
152.75
151.15
150.36
150.21
150.28
150.12
150.05
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Max
150.05
150.71
151.15
154.25
154.68
153.87
153.18
150.51
150.30
151.14
150.25
150.19
154.68
Min
149.86
149.85
149.98
150.50
151.02
151.32
150.57
150.21
150.18
150.15
150.05
149.98
149.85
154.71
m. (MSL.) ,
149.00
m. (MSL.) ,
River Bed 149.45
m. (MSL)
153.36
m. (MSL.) ,
155.68
m. (MSL.) ,
Drainage Area 172 Square Kilometers
at 09.00 Hours , on Aug 20 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation