Basic HTML Version
30
Location : on left bank at the bridge of Amphoe Phu Rua - Amphoe Dan Sai Highway.
352
sq.km.
Amphoe
Phu Rua
Changwat
Loei
Ban
Kaeng Hai
WATER YEAR : 2011
KHONG RIVER BASIN
Nam San at Ban Kaeng Hai , Loei (Kh.95)
Lat 17 - 26 - 20 N Long 101 - 19 - 50 E
Drainge Area
Water - stage recorder
+593.920 m. (MSL.)
B.M.- Highways Dept.
On left bank upstream side at the footpath of the bridge.
Elevation
Recording
Arithmetic means of 24 readings
1998 to date
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+605.713 m. (MSL.)
Type of Gage
Bench Mark
Location BM
Rating Operation
Period of Available Gage Records
1998 to date
-
1999 to date
Fairly stable.
Overbank flow starts at elevation +601.800 m.(MSL.), records are channel flow only.
Records good. Stage-discharge relation defined by 21 discharge measurements made in 2011.
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
595.17
596.19
596.61
596.62
600.86
598.37
599.10
596.57
595.95
595.66
595.44
595.34
2
595.14
595.91
596.72
596.62
601.36
598.14
599.62
596.55
595.95
595.66
595.43
595.33
3
595.12
595.68
597.09
596.69
601.60
597.81
601.48
596.52
595.95
595.67
595.42
595.33
4
595.10
595.54
597.97
596.73
601.89
597.56
601.78
596.49
595.94
595.65
595.42
595.32
5
595.08
595.70
597.71
596.52
600.91
597.39
599.75
596.46
595.94
595.64
595.41
595.32
6
595.06
596.03
597.29
596.44
599.86
599.01
598.73
596.43
595.94
595.64
595.40
595.31
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
595.04
595.82
596.92
596.40
599.15
600.57
598.38
596.40
595.94
595.63
595.39
595.31
8
595.02
595.76
596.77
596.44
598.44
599.40
598.07
596.37
595.93
595.63
595.38
595.31
9
595.00
595.62
596.61
596.40
597.54
598.65
597.86
596.34
595.93
595.62
595.38
595.30
10
594.98
595.58
596.42
596.30
597.27
598.91
597.78
596.31
595.93
595.62
595.37
595.30
11
594.97
595.72
596.24
596.41
597.66
600.26
597.71
596.28
595.91
595.61
595.37
595.30
12
594.97
595.73
596.19
596.57
598.83
601.52
597.68
596.25
595.86
595.61
595.37
595.29
13
594.97
595.68
596.06
596.43
599.28
602.26
597.65
596.22
595.80
595.60
595.36
595.29
14
594.96
596.08
595.94
596.47
599.15
601.78
597.59
596.19
595.75
595.60
595.36
595.29
15
594.96
596.66
595.72
596.51
598.89
600.87
597.52
596.16
595.74
595.59
595.36
595.28
16
594.96
596.57
595.53
596.55
598.43
600.06
597.52
596.12
595.73
595.58
595.36
595.28
17
594.95
596.43
595.40
596.63
598.26
599.45
597.51
596.08
595.73
595.57
595.36
595.27
18
594.95
596.93
595.33
596.56
598.85
598.75
597.47
596.05
595.72
595.56
595.35
595.27
19
594.94
597.32
595.30
596.45
597.99
598.68
597.43
596.03
595.72
595.55
595.35
595.27
20
594.93
597.59
595.25
596.52
597.92
598.89
597.39
596.01
595.71
595.54
595.35
595.26
21
594.93
597.25
595.26
596.60
599.53
599.53
597.35
596.00
595.70
595.53
595.35
595.26
22
594.94
596.81
595.27
596.51
597.75
599.76
597.31
595.99
595.69
595.52
595.35
595.25
23
594.94
596.77
595.27
596.43
597.65
599.05
597.20
595.98
595.68
595.51
595.35
595.25
24
594.95
596.78
595.73
596.84
597.60
598.78
597.03
595.97
595.67
595.50
595.34
595.24
25
595.09
596.71
596.71
597.64
597.53
598.73
596.74
595.97
595.67
595.49
595.34
595.24
26
595.31
596.67
596.88
597.23
597.46
598.77
596.66
595.97
595.66
595.47
595.34
595.24
27
595.28
596.64
596.68
596.90
597.27
598.94
596.64
595.96
595.66
595.46
595.34
595.23
28
595.34
596.59
596.74
597.06
597.13
599.55
596.63
595.96
595.66
595.46
595.34
595.23
29
595.43
596.53
596.84
597.64
597.13
600.14
596.62
595.95
595.65
595.46
595.34
595.22
30
595.60
596.53
596.69
597.69
597.47
600.09
596.60
595.95
595.65
595.45
595.21
31
596.53
598.22
598.44
596.59
595.65
595.44
595.20
----------
--------------
Mean
595.07
596.33
596.30
596.74
598.68
599.39
597.85
596.18
595.79
595.57
595.37
595.28
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Max
595.60
597.59
597.97
598.22
601.89
602.26
601.78
596.57
595.95
595.67
595.44
595.34
602.26
Min
594.93
595.54
595.25
596.30
597.13
597.39
596.59
595.95
595.65
595.44
595.34
595.20
594.93
602.36
m. (MSL.) ,
593.92
m. (MSL.) ,
River Bed 595.09
m. (MSL)
604.19
m. (MSL.) ,
601.79
m. (MSL.) ,
Drainage Area 352 Square Kilometers
at 16.00 Hours , on Sep 13 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation