Basic HTML Version
72
Location : on left bank in the vicinity of the forestry office about 400 meters from the bridge on highway.
949
sq.km.
Drainge Area
WATER YEAR : 2011
CHI RIVER BASIN
Lam Nam Phong at Ban Pha Nok Khao , Loei (E.29)
Lat 16 - 50 - 44 N Long 101 - 56 - 54 E
Amphoe
Phu Kradung
Changwat
Loei
Ban
Pha Nok Khao
Water - stage recorder
+225.000 m. (MSL.)
B.M.- H.D.
In front of the automatic gage buiding.
Elevation
Recording
Arithmetic means of 24 readings
1956 - 1958 , 1967 to date
Rating Operation
Period of Available Gage Records
Location BM
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+236.945 m. (MSL.)
Bench Mark
Type of Gage
1978 to date
-
1978 to date
Fairly stable.
Overbank flow starts at elevation +237.980 m.(MSL.), records are channel flow only.
Records good. Flow effected by Ubonrat Dam.
Stage-discharge relation defined by 44 discharge measurements made in 2011.
Period of Rating
Rated by Flot
Rated by Current Meter
Stability of Channel Regimes
Overbank Flow Conditions
General Description
Date
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Annual
----------
-----------------
1
225.96
227.62
231.31
226.46
229.03
229.42
229.21
226.89
226.23
225.93
225.93
225.83
2
225.96
227.74
231.43
226.41
230.06
227.81
230.14
226.85
226.22
225.92
225.93
225.83
3
225.97
227.19
232.23
226.38
228.55
227.35
234.03
226.85
226.20
225.97
225.93
225.84
4
225.95
226.82
230.92
226.34
227.93
227.39
237.52
226.82
226.18
225.96
226.00
225.85
5
226.01
226.77
230.50
226.51
227.36
227.81
234.20
226.75
226.15
225.96
226.25
225.85
6
226.22
226.63
229.68
226.53
227.02
229.97
230.54
226.67
226.14
225.96
226.15
225.85
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Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
226.18
227.16
229.29
226.74
226.82
230.80
229.29
226.65
226.13
225.98
226.01
225.84
8
226.56
228.21
227.87
226.36
226.75
228.85
228.94
226.64
226.13
225.98
225.95
225.84
9
226.43
227.67
227.65
226.27
226.74
228.19
228.65
226.62
226.12
225.96
225.96
225.84
10
226.20
227.56
227.56
226.34
226.71
230.20
228.62
226.62
226.11
225.96
225.95
225.91
11
226.07
227.12
227.13
226.67
226.60
231.15
228.33
226.63
226.10
225.94
225.93
226.05
12
226.00
227.02
226.95
228.32
226.71
234.17
228.00
226.62
226.10
225.94
225.94
226.01
13
225.99
226.57
226.85
227.65
227.53
238.65
228.05
226.65
226.09
225.93
225.93
226.07
14
225.95
227.32
226.76
227.37
227.06
238.25
228.28
226.63
226.08
225.94
225.92
225.98
15
225.95
228.55
226.63
227.18
226.88
235.62
228.45
226.57
226.07
225.94
225.90
225.96
16
225.94
227.42
226.64
227.03
226.72
233.89
229.00
226.50
226.06
225.93
225.90
225.95
17
225.93
226.76
226.70
226.77
226.78
231.23
229.31
226.48
226.06
225.93
225.90
225.98
18
225.93
227.19
226.68
226.58
227.42
229.64
229.52
226.44
226.05
225.94
225.90
226.05
19
225.90
229.32
226.78
226.43
227.49
230.76
228.82
226.41
226.05
225.94
225.90
226.24
20
225.88
229.93
226.50
226.36
227.29
231.28
228.25
226.45
226.05
225.95
225.90
226.00
21
225.90
228.47
226.42
226.35
227.50
232.13
227.89
226.44
226.05
225.93
225.89
225.98
22
225.89
227.30
226.40
226.34
227.28
233.90
227.38
226.41
226.03
225.95
225.89
225.93
23
225.90
226.90
226.34
226.53
227.48
233.52
227.25
226.35
226.00
225.97
225.88
225.89
24
225.93
227.65
226.28
226.53
226.64
232.20
227.24
226.34
226.00
225.96
225.87
225.88
25
226.07
228.54
226.29
227.70
226.96
230.71
227.21
226.33
225.98
225.95
225.84
225.88
26
225.99
230.75
226.50
227.83
228.40
229.23
227.23
226.30
225.97
225.94
225.84
225.87
27
225.95
230.66
226.86
227.12
227.45
232.22
227.12
226.29
225.96
225.94
225.84
225.87
28
226.08
228.35
226.85
226.88
227.14
234.91
227.12
226.28
225.94
225.93
225.84
225.85
29
226.89
228.57
226.66
226.68
227.88
232.84
227.04
226.27
225.92
225.92
225.84
225.84
30
227.87
228.75
226.63
226.50
229.82
230.17
226.91
226.27
225.88
225.91
225.84
31
229.71
227.02
231.59
226.95
225.87
225.92
225.84
----------
--------------
Mean
226.12
227.94
227.71
226.78
227.60
231.48
228.92
226.53
226.06
225.94
225.93
225.92
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Max
227.87
230.75
232.23
228.32
231.59
238.65
237.52
226.89
226.23
225.98
226.25
226.24
238.65
Min
225.88
226.57
226.28
226.27
226.60
227.35
226.91
226.27
225.87
225.91
225.84
225.83
225.83
239.21
m. (MSL.) ,
225.00
m. (MSL.) ,
River Bed 225.57
m. (MSL)
237.97
m. (MSL.) ,
238.08
m. (MSL.) ,
Drainage Area 949 Square Kilometers
at 19.00 Hours, on Sep 13, 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation