Basic HTML Version
12
Location : on left bank at Ban Na Wa.
3,123
sq.km.
WATER YEAR : 2014
KHONG RIVER BASIN
Nam Un at Ban Na Wa , Nakhon Phanom (Kh.54)
Lat 17 - 29 - 33 N Long 104 - 06 - 50 E
Amphoe
Na Wa
Changwat
Nakhon Phanom
Ban
Na Wa
Drainge Area
Water - stage recorder.
+138.050 m. (MSL.)
B.M.- H.D.
On left bank at the footpath of the bridge.
Elevation
Recording
Arithmetic mean of 24 readings
1970 to date
+149.914 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
1970 to date
-
1970 to date
Rather unstable.
No overbank flow.
Records fair. Stage-discharge relation defined by 22 discharge measurements made in 2014.
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
140.87
140.85
140.73
142.29
146.90
144.99
144.17
140.91
140.81
140.72
140.72
140.80
2
140.87
140.85
140.75
142.31
146.83
144.98
143.90
140.92
140.81
140.72
140.72
140.80
3
140.87
140.85
140.75
142.67
146.82
145.04
143.61
140.92
140.80
140.72
140.72
140.80
4
140.87
140.85
140.76
142.96
146.81
145.10
143.27
140.92
140.79
140.72
140.75
140.84
5
140.87
140.85
140.77
143.10
146.83
145.11
142.84
140.92
140.78
140.72
140.79
141.04
6
140.87
140.83
140.77
142.83
146.97
145.04
142.51
140.91
140.78
140.72
140.80
141.01
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Gage Height in Meter (MSL.) Water Year April 1, 2014 to March 31, 2015
7
140.87
140.83
140.79
142.37
147.06
144.94
141.99
140.91
140.77
140.72
140.80
140.95
8
140.86
140.83
140.80
142.28
147.00
144.84
141.49
140.91
140.77
140.72
140.80
140.86
9
140.86
140.81
140.80
143.09
146.91
144.70
141.34
140.90
140.77
140.72
140.80
140.81
10
140.85
140.80
140.80
144.63
146.78
144.53
141.16
140.90
140.77
140.72
140.80
140.77
11
140.85
140.80
140.80
145.76
146.64
144.34
141.10
140.88
140.77
140.72
140.80
140.77
12
140.86
140.80
140.81
146.28
146.51
144.14
141.08
140.85
140.77
140.72
140.80
140.77
13
140.86
140.80
140.95
146.68
146.37
143.82
141.05
140.85
140.75
140.72
140.80
140.76
14
140.86
140.80
141.18
146.86
146.22
143.44
141.00
140.85
140.73
140.72
140.80
140.78
15
140.85
140.80
141.46
146.93
146.11
143.14
140.97
140.84
140.73
140.72
140.80
140.82
16
140.85
140.79
142.30
146.98
145.97
142.84
140.96
140.84
140.72
140.72
140.80
140.84
17
140.84
140.76
142.94
146.96
145.81
142.56
140.95
140.83
140.72
140.72
140.80
140.84
18
140.84
140.71
143.29
146.92
145.63
142.40
140.95
140.83
140.72
140.72
140.80
140.85
19
140.84
140.69
143.24
146.87
145.41
142.52
140.96
140.83
140.72
140.72
140.80
140.85
20
140.84
140.68
142.96
146.83
145.22
142.59
140.97
140.82
140.72
140.72
140.80
140.87
21
140.84
140.68
142.64
146.80
145.05
142.60
140.97
140.82
140.72
140.72
140.80
140.98
22
140.84
140.66
142.63
146.78
144.99
142.67
140.97
140.83
140.72
140.72
140.80
141.01
23
140.84
140.66
142.70
146.79
144.95
142.79
140.97
140.83
140.72
140.72
140.80
141.06
24
140.84
140.65
142.84
146.83
144.94
143.45
140.97
140.83
140.73
140.72
140.80
141.07
25
140.84
140.65
143.13
146.86
144.89
144.33
140.95
140.82
140.73
140.72
140.80
141.06
26
140.84
140.65
143.38
146.85
144.83
144.78
140.91
140.81
140.73
140.72
140.80
141.04
27
140.84
140.65
143.35
146.81
144.83
144.74
140.93
140.81
140.73
140.72
140.80
141.03
28
140.85
140.69
143.15
146.85
144.87
144.60
140.95
140.81
140.73
140.72
140.80
141.02
29
140.85
140.74
142.85
146.84
144.91
144.50
140.93
140.81
140.72
140.72
141.01
30
140.85
140.73
142.52
146.80
144.98
144.36
140.91
140.81
140.72
140.72
141.00
31
140.73
146.89
145.00
140.91
140.72
140.72
141.00
----------
--------------
Mean
140.85
140.76
141.89
145.51
145.90
144.00
141.50
140.86
140.75
140.72
140.79
140.91
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Max
140.87
140.85
143.38
146.98
147.06
145.11
144.17
140.92
140.81
140.72
140.80
141.07
147.06
Min
140.84
140.65
140.73
142.28
144.83
142.40
140.91
140.81
140.72
140.72
140.72
140.76
140.65
147.07
m. (MSL.) ,
138.05
m. (MSL.) ,
River Bed 138.87
m. (MSL.)
149.75
m. (MSL.) ,
149.66
m. (MSL.) ,
Drainage Area 3123 Square Kilometers
at 06.00 Hours , on Aug 7 , 2014
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation