Basic HTML Version
50
Location : on right bank Ban Prong Yai.
2,160
sq.km.
WATER YEAR : 2014
KHONG RIVER BASIN
Nam Un at Ban Prong Yai , Sakon Nakhon (Kh.108)
Lat 17 - 19 - 22 N Long 103 - 58 - 45 E
Amphoe
Phanna Nikhom
Changwat
Sakon Nakhon
Ban
Prong Yai
Drainge Area
Staff gage
+150.000 m. (MSL.)
B.M.- H.D.
On right bank at the automatic gage building.
Elevation
3-time daily readings at 06.00, 12.00 and 18.00 hours.
Arithmetic mean of 3 readings.
2013 to date
+159.228 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
2013 to date
-
2013 to date
Rather unstable.
No overbank flow.
Records fair. Stage-discharge relation defined by 14 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
153.14
153.20
153.01
153.79
155.68
155.12
153.57
153.25
152.91
152.89
152.75
152.95
2
153.12
153.13
153.03
154.25
155.60
155.13
153.56
153.27
152.90
152.85
152.75
152.96
3
153.05
153.08
153.01
154.03
155.58
155.09
153.55
153.27
152.90
152.81
152.77
153.02
4
153.00
153.04
152.97
153.74
155.66
155.03
153.52
153.24
152.89
152.77
152.80
153.12
5
153.01
153.01
152.93
153.47
155.72
154.94
153.48
153.21
152.88
152.71
152.83
153.20
6
153.04
152.98
152.92
153.45
155.77
154.87
153.43
153.16
152.87
152.68
152.86
153.21
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (MSL.) Water Year April 1, 2014 to March 31, 2015
7
153.04
152.97
153.02
153.54
155.85
154.74
153.38
153.12
152.85
152.65
152.88
153.16
8
153.02
152.94
153.10
153.76
155.83
154.57
153.38
153.10
152.84
152.61
152.90
153.12
9
153.00
152.91
153.12
154.77
155.75
154.40
153.36
153.12
152.83
152.58
152.92
153.10
10
153.01
152.91
153.13
155.70
155.67
154.22
153.36
153.10
152.81
152.57
152.95
153.08
11
153.01
152.88
153.12
155.82
155.60
153.97
153.35
153.08
152.80
152.62
152.97
153.06
12
153.00
152.86
153.11
155.86
155.51
153.72
153.33
153.06
152.77
152.73
152.98
153.06
13
153.01
152.85
153.25
155.94
155.37
153.52
153.30
153.02
152.75
152.81
152.99
153.08
14
153.04
152.83
153.46
156.13
155.20
153.43
153.27
152.99
152.74
152.82
153.00
153.10
15
153.07
152.80
153.53
156.38
155.07
153.41
153.27
152.98
152.73
152.85
153.01
153.12
16
153.11
152.78
153.65
156.56
154.96
153.39
153.27
152.97
152.72
152.89
153.02
153.14
17
153.13
152.77
153.73
156.58
154.85
153.37
153.26
152.95
152.80
152.93
153.03
153.17
18
153.11
152.77
153.57
156.55
154.74
153.37
153.24
152.96
152.92
152.95
153.04
153.20
19
153.07
152.75
153.49
156.61
154.61
153.36
153.21
152.95
152.93
152.96
153.05
153.23
20
153.03
152.72
153.57
156.57
154.48
153.35
153.23
152.95
152.97
152.95
153.05
153.25
21
153.02
152.70
153.60
156.51
154.37
153.35
153.25
152.94
153.00
152.89
153.04
153.28
22
153.01
152.70
153.51
156.42
154.49
153.41
153.25
152.94
153.00
152.81
153.02
153.31
23
153.03
152.69
153.48
156.38
154.59
153.47
153.25
152.93
153.02
152.76
153.01
153.31
24
153.01
152.72
153.53
156.33
154.69
153.59
153.22
152.93
153.04
152.74
153.00
153.32
25
152.96
152.77
153.50
156.26
154.77
153.74
153.21
152.93
153.06
152.75
152.99
153.31
26
152.92
152.79
153.45
156.16
154.85
153.81
153.22
152.92
153.06
152.76
152.97
153.30
27
152.89
152.82
153.51
156.03
154.96
153.81
153.24
152.92
153.06
152.77
152.96
153.29
28
153.02
152.88
153.49
155.94
155.08
153.77
153.25
152.91
153.03
152.75
152.95
153.29
29
153.25
152.92
153.44
155.85
155.18
153.71
153.25
152.91
152.99
152.73
153.28
30
153.26
152.96
153.51
155.78
155.21
153.64
153.24
152.92
152.97
152.72
153.30
31
152.98
155.73
155.18
153.25
152.94
152.74
153.38
----------
--------------
Mean
153.05
152.87
153.32
155.51
155.19
153.98
153.32
153.03
152.90
152.78
152.95
153.18
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Max
153.26
153.20
153.73
156.61
155.85
155.13
153.57
153.27
153.06
152.96
153.05
153.38
156.61
Min
152.89
152.69
152.92
153.45
154.37
153.35
153.21
152.91
152.72
152.57
152.75
152.95
152.57
156.63
m. (MSL.) ,
150.00
m. (MSL.) ,
River Bed 150.25
m. (MSL.)
157.56
m. (MSL.) ,
158.34
m. (MSL.) ,
Drainage Area 2160 Square Kilometers
at 15.00 Hours , on Jul 19 , 2014
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation