50
i
i h b k
i
WATER YEAR : 2013
KHONG RIVER BASIN
Nam Un at Ban Prong Yai , Sakon Nakhon (Kh.108)
Lat 17 - 19 - 22 N Long 103 - 58 - 45 E
Locat on : on r g t an Ban Prong Ya .
2,160
sq.km.
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.
Drainge Area
Location BM
Gage Reading Frequency
Zero Gage at Bottom
+159.228 m. (MSL.)
Bench Mark
Type of Gage
Amphoe
Phanna Nikhom
Changwat
Sakon Nakhon
Ban
Prong Yai
Arithmetic mean of 3 readings.
2013 to date
2013 to date
-
2013 to date
Stable because of backwater effect.
No overbank flow.
Rating Operation
Period of Rating
Rated by Flot
Period of Available Gage Records
Basis of Mean Daily Gage Height
Rated by Current Meter
Stability of Channel Regimes
Overbank Flow Conditions
Records fair. Stage-discharge relation defined by 18 discharge measurements made in 2013.
Date
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Annual
----------
-----------------
1
152.70
152.86
153.67
153.43
156.65
153.61
153.49
153.16
152.49
152.71
152.94
153.05
2
152.67
152.88
153.60
153.26
156.71
153.54
153.70
153.13
152.48
152.69
152.98
153.05
3
152.64
152.91
153.49
153.14
156.72
153.47
153.74
153.08
152.48
152.68
153.00
153.01
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Gage Height in Meter (MSL.) Water Year April 1, 2013 to March 31, 2014
General Description
4
152.61
153.00
153.41
153.40
156.68
153.41
153.67
153.03
152.51
152.67
153.02
152.97
5
152.58
153.14
153.37
153.46
156.63
153.44
153.57
153.01
152.56
152.66
153.04
152.93
6
152.56
153.05
153.41
153.32
156.59
153.51
153.49
152.97
152.57
152.66
153.06
152.91
7
152.54
152.97
153.47
153.30
156.57
153.52
153.37
152.92
152.56
152.66
153.06
152.90
8
152.51
152.94
153.43
153.29
156.53
153.48
153.27
152.88
152.55
152.66
153.04
152.89
9
152.46
152.90
153.29
153.41
156.48
153.45
153.21
152.86
152.58
152.70
153.02
152.89
10
152.43
152.97
153.27
153.56
156.45
153.40
153.18
152.85
152.60
152.72
152.99
152.92
11
152.41
153.32
153.81
153.52
156.39
153.34
153.16
152.81
152.61
152.73
152.94
152.94
12
152 37
153 45
154 40
153 43
156 36
153 29
153 14
152 79
152 63
152 74
152 92
152 97
.
.
.
.
.
.
.
.
.
.
.
.
13
152.34
153.37
154.42
153.38
156.28
153.30
153.13
152.79
152.66
152.74
152.89
153.00
14
152.31
153.19
154.30
153.33
156.16
153.35
153.11
152.77
152.67
152.74
152.86
153.03
15
152.29
153.10
154.05
153.34
156.05
153.55
153.12
152.76
152.71
152.75
152.87
153.05
16
152.29
153.01
153.81
153.55
155.94
153.93
153.20
152.74
152.79
152.76
152.90
153.06
17
152.29
152.92
153.59
153.74
155.76
154.39
153.46
152.73
152.90
152.75
152.94
153.07
18
152.28
152.89
153.29
153.76
155.53
154.61
153.59
152.72
152.98
152.72
152.97
153.08
19
152.28
153.33
153.18
153.67
155.31
154.62
153.63
152.69
152.96
152.70
152.97
153.08
20
152.28
153.45
153.12
153.62
155.06
154.60
153.61
152.69
152.94
152.71
152.98
153.10
21
152.28
153.43
153.16
153.79
154.79
154.53
153.54
152.68
152.92
152.72
153.00
153.15
22
152.29
153.46
153.26
154.24
154.48
154.45
153.45
152.66
152.90
152.70
153.00
153.19
23
152.32
153.66
153.44
154.48
154.26
154.34
153.39
152.65
152.89
152.70
153.02
153.20
24
152.31
153.97
153.69
154.56
154.04
154.29
153.33
152.63
152.88
152.68
153.03
153.21
25
152.31
154.21
153.75
155.01
153.79
154.14
153.28
152.62
152.87
152.68
153.05
153.24
26
152.38
154.21
153.75
155.18
153.53
153.97
153.25
152.61
152.86
152.69
153.06
153.22
27
152.63
154.00
153.75
155.25
153.35
153.80
153.24
152.59
152.83
152.74
153.06
153.19
28
152.96
153.86
153.67
155.51
153.33
153.71
153.22
152.57
152.78
152.78
153.05
153.17
29
152.90
153.76
153.65
155.93
153.40
153.61
153.21
152.54
152.75
152.83
153.17
30
152.88
153.75
153.57
156.34
153.46
153.46
153.21
152.51
152.73
152.87
153.16
31
153.73
156.55
153.59
153.18
152.72
152.90
153.14
----------
--------------
Mean
152.47
153.34
153.60
154.06
155.38
153.80
153.36
152.78
152.72
152.72
152.99
153.06
Max
152.96
154.21
154.42
156.55
156.72
154.62
153.74
153.16
152.98
152.90
153.06
153.24
156.72
Min
152.28
152.86
153.12
153.14
153.33
153.29
153.11
152.51
152.48
152.66
152.86
152.89
152.28
156.74
m. (MSL.) ,
150.00
m. (MSL.) ,
River Bed 150.23
m. (MSL.)
157.58
m. (MSL.) ,
158.36
m. (MSL.) ,
Drainage Area 2160 Square Kilometers
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at 01.00 Hours , on Aug 3 , 2013
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation