Basic HTML Version
6
Location : on right bank between Phu Pha Dang and Phu Phan about 2 kilometers from Ban Na Ang.
1,309
sq.km.
WATER YEAR : 2014
KHONG RIVER BASIN
Huai Mong at Ban Na Ang , Udon Thani (Kh.18)
Lat 17 - 34 - 41 N Long 102 - 20 - 22 E
Amphoe
Ban Phu
Changwat
Udon Thani
Ban
Na Ang
Drainge Area
Water - stage recorder.
+183.430 m. (MSL.)
B.M.-H.D.
On right bank at the automatic gage building.
Elevation
Recording
Arithmetic mean of 24 readings
1957 to date
+191.432 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
1957 - 1959 , 1965 - 1966 , 1974 - 1980 , 1997 to date
-
1957 - 1959 , 1965 - 1966 , 1974 - 1980 , 1997 to date
Rather unstable.
No overbank flow.
Records fair. Stage-discharge relation defined by 10 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
183.81
183.73
184.79
184.69
188.83
189.50
186.36
186.68
186.23
186.08
185.93
185.63
2
183.81
183.84
184.76
184.90
188.66
189.31
186.43
186.67
186.23
186.08
185.93
185.62
3
183.81
183.97
184.83
185.11
188.55
188.99
186.51
186.65
186.22
186.07
185.90
185.60
4
183.81
184.06
184.87
185.33
188.13
188.86
186.53
186.63
186.21
186.07
185.87
185.57
5
183.81
184.09
184.93
185.53
187.34
188.78
186.48
186.62
186.21
186.06
185.84
185.54
6
183.81
184.15
184.93
185.75
187.16
188.62
186.37
186.59
186.20
186.06
185.83
185.53
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Gage Height in Meter (MSL.) Water Year April 1, 2014 to March 31, 2015
7
183.81
184.21
184.92
185.96
187.08
188.40
186.33
186.56
186.20
186.05
185.82
185.53
8
183.81
184.27
184.83
186.17
187.01
188.24
186.31
186.54
186.19
186.05
185.79
185.52
9
183.81
184.29
184.79
186.38
187.15
188.20
186.25
186.53
186.18
186.04
185.76
185.51
10
183.81
184.32
184.73
186.55
186.96
188.14
186.23
186.49
186.17
186.04
185.73
185.50
11
183.80
184.36
184.73
186.71
186.98
188.11
186.23
186.43
186.13
186.03
185.74
185.49
12
183.80
184.38
184.73
186.85
187.30
188.09
186.23
186.42
186.13
186.02
185.75
185.48
13
183.80
184.39
184.73
186.96
187.90
188.08
186.27
186.41
186.11
186.01
185.77
185.46
14
183.79
184.41
184.73
187.09
187.91
188.06
186.28
186.40
186.09
186.01
185.78
185.45
15
183.79
184.44
184.72
186.94
188.26
188.05
186.27
186.40
186.08
186.00
185.78
185.44
16
183.79
184.54
184.68
186.89
189.21
188.04
186.24
186.40
186.08
185.98
185.78
185.43
17
183.78
184.61
184.66
187.75
189.26
188.04
186.23
186.39
186.08
185.97
185.76
185.41
18
183.78
184.68
184.63
188.99
189.31
187.99
186.23
186.39
186.08
185.95
185.75
185.41
19
183.78
184.73
184.63
189.11
189.29
187.94
186.25
186.38
186.08
185.94
185.74
185.40
20
183.78
184.75
184.63
188.62
189.25
187.88
186.28
186.37
186.08
185.94
185.73
185.40
21
183.77
184.78
184.63
187.73
189.33
187.71
186.32
186.36
186.08
186.00
185.70
185.38
22
183.77
184.80
184.63
187.07
189.59
187.50
186.37
186.34
186.08
185.99
185.68
185.37
23
183.76
184.81
184.63
186.80
189.30
187.17
186.40
186.32
186.08
185.98
185.67
185.36
24
183.76
184.83
184.63
186.53
188.92
186.46
186.45
186.30
186.08
185.97
185.66
185.34
25
183.75
184.84
184.63
186.55
188.91
186.27
186.51
186.29
186.08
185.95
185.65
185.31
26
183.75
184.87
184.63
187.25
189.52
186.24
186.55
186.28
186.08
185.94
185.66
185.28
27
183.74
184.90
184.63
188.00
189.55
186.33
186.64
186.27
186.08
185.94
185.64
185.26
28
183.74
184.92
184.62
188.97
189.57
186.43
186.70
186.26
186.08
185.93
185.63
185.25
29
183.73
184.90
184.62
189.45
189.56
186.52
186.69
186.25
186.08
185.93
185.25
30
183.73
184.88
184.63
189.01
189.53
186.42
186.68
186.23
186.08
185.93
185.23
31
184.89
189.03
189.55
186.68
186.08
185.93
185.23
----------
--------------
Mean
183.78
184.50
184.72
187.05
188.54
187.81
186.40
186.43
186.12
186.00
185.76
185.43
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Max
183.81
184.92
184.93
189.45
189.59
189.50
186.70
186.68
186.23
186.08
185.93
185.63
189.59
Min
183.73
183.73
184.62
184.69
186.96
186.24
186.23
186.23
186.08
185.93
185.63
185.23
183.73
189.73
m. (MSL.) ,
183.43
m. (MSL.) ,
River Bed 181.21
m. (MSL.)
191.87
m. (MSL.) ,
190.33
m. (MSL.) ,
Drainage Area 1309 Square Kilometers
at 06.00 Hours , on Jul 29 , 2014
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation