Basic HTML Version
8
Location : on right bank at the bridge of Wang Saphung - Loei Highway.
1,271
sq.km.
WATER YEAR : 2014
KHONG RIVER BASIN
Loei River at Ban Na Lak , Loei (Kh.28A)
Lat 17 - 18 - 32 N Long 101 - 46 - 25 E
Drainge Area
Amphoe
Wang Saphung
Changwat
Loei
Ban
Na Lak
Water - stage recorder.
+239.620 m. (MSL.)
B.M.- Highways Dept.
On right bank upstream at the footpath of the bridge.
Elevation
Recording
Arithmetic mean of 24 readings
1994 to date
Rating Operation
Period of Available Gage Records
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+252.730 m. (MSL.)
Type of Gage
Bench Mark
Location BM
1994 to date
-
1994 to date
Rather unstable.
No overbank flow.
Records fair. Stage-discharge relation defined by 24 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
239.25
239.38
239.67
239.70
239.84
241.38
241.15
239.76
239.42
239.31
239.31
239.32
2
239.21
239.55
239.74
240.02
239.74
240.71
241.86
239.71
239.40
239.31
239.31
239.30
3
239.19
239.91
239.92
239.88
239.74
240.96
241.27
239.66
239.42
239.31
239.31
239.24
4
239.15
239.78
239.95
239.74
239.83
240.96
240.63
239.63
239.41
239.31
239.31
239.35
5
239.15
239.69
239.72
239.62
239.75
240.48
240.34
239.62
239.40
239.31
239.31
239.97
6
239.15
240.23
239.65
239.56
239.88
240.40
240.28
239.67
239.39
239.31
239.31
239.87
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Gage Height in Meter (MSL.) Water Year April 1, 2014 to March 31, 2015
7
239.14
239.31
239.56
239.50
240.10
240.96
240.19
239.83
239.39
239.31
239.31
239.93
8
239.25
239.52
239.47
239.45
240.35
240.54
240.10
239.89
239.40
239.31
239.31
239.89
9
239.27
239.55
239.41
239.41
240.49
240.37
240.01
241.17
239.39
239.31
239.32
239.89
10
239.26
239.38
240.05
239.38
240.79
240.30
239.94
241.20
239.38
239.30
239.32
239.88
11
239.28
239.35
239.93
239.49
241.28
240.25
239.91
240.23
239.38
239.31
239.32
239.85
12
239.29
239.34
239.90
239.81
240.35
240.13
239.88
239.99
239.37
239.31
239.32
239.86
13
239.27
239.33
239.96
240.07
240.10
240.08
239.85
239.85
239.37
239.33
239.32
239.83
14
239.26
239.41
239.72
240.43
240.29
240.12
239.82
239.77
239.36
239.34
239.31
239.82
15
239.24
239.27
239.80
240.28
240.65
240.18
239.78
239.71
239.36
239.34
239.30
239.82
16
239.24
239.42
239.83
240.21
240.35
240.30
239.77
239.67
239.35
239.34
239.25
239.83
17
239.24
239.38
239.62
240.01
241.28
240.16
239.76
239.64
239.32
239.34
239.21
239.91
18
239.24
239.42
240.02
240.33
240.54
239.99
239.72
239.61
239.32
239.34
239.23
239.89
19
239.24
239.61
239.80
241.42
240.16
239.94
239.70
239.57
239.30
239.34
239.25
239.87
20
239.24
239.53
239.63
241.16
240.01
240.04
239.70
239.54
239.32
239.34
239.34
239.86
21
239.24
239.46
239.60
240.60
239.95
239.93
239.68
239.53
239.32
239.34
239.43
239.83
22
239.25
239.43
239.58
240.39
240.35
239.91
239.68
239.52
239.32
239.34
239.43
239.83
23
239.29
239.37
239.49
240.18
240.06
239.84
239.67
239.50
239.32
239.34
239.42
239.82
24
239.29
239.31
239.46
239.97
239.92
240.60
240.14
239.50
239.32
239.33
239.40
239.77
25
239.29
239.30
239.39
240.01
239.84
243.94
240.72
239.49
239.32
239.32
239.32
239.75
26
239.54
239.29
239.37
239.92
240.08
242.83
240.24
239.49
239.32
239.32
239.32
239.75
27
239.47
239.29
239.46
240.55
240.53
241.50
240.04
239.48
239.30
239.32
239.32
239.74
28
239.35
239.41
239.65
240.91
240.59
241.61
239.90
239.49
239.30
239.31
239.32
239.88
29
239.36
239.43
239.84
240.62
240.47
241.44
239.78
239.45
239.30
239.31
239.86
30
239.59
239.81
239.58
240.14
241.53
240.92
239.75
239.42
239.31
239.31
239.85
31
239.78
239.94
242.32
239.74
239.31
239.31
239.85
----------
--------------
Mean
239.27
239.49
239.69
240.09
240.36
240.69
240.10
239.75
239.35
239.32
239.32
239.78
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Max
239.59
240.23
240.05
241.42
242.32
243.94
241.86
241.20
239.42
239.34
239.43
239.97
243.94
Min
239.14
239.27
239.37
239.38
239.74
239.84
239.67
239.42
239.30
239.30
239.21
239.24
239.14
244.20
m. (MSL.) ,
239.62
m. (MSL.) ,
River Bed 237.28
m. (MSL.)
253.80
m. (MSL.) ,
253.82
m. (MSL.) ,
Drainage Area 1271 Square Kilometers
at 09.00 Hours , on Sep 25 , 2014
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation