Basic HTML Version
78
Location : on left bank in the vicinity of the forestry office about 400 meters from the bridge on highway.
949
sq.km.
WATER YEAR : 2012
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
Drainge Area
Water - stage recorder
+225.000 m. (MSL.)
B.M.- H.D.
In front of the automatic gage buiding.
Elevation
Recording
Arithmetic mean of 24 readings
1956 - 1958 , 1967 to date
+236.945 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
1978 to date
-
1978 to date
Fairly stable.
No overbank flow.
Records fair. Flow effected by Ubonrat Dam.
Stage-discharge relation defined by 132 discharge measurements made in 2012.
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
225.84
226.07
227.13
226.05
226.10
226.55
227.11
226.27
226.72
225.89
225.81
225.80
2
225.85
225.98
226.78
226.03
226.07
226.60
226.97
226.22
226.45
225.89
225.84
225.92
3
225.83
225.95
226.57
226.24
226.05
228.01
226.88
226.20
226.29
225.89
225.87
226.20
4
225.83
225.93
226.56
226.37
226.03
232.31
227.53
226.19
226.24
225.89
225.90
226.19
5
225.83
226.00
226.94
226.23
226.02
233.08
228.33
226.15
226.20
225.88
225.94
226.06
6
225.85
226.53
227.73
227.52
226.00
230.34
229.09
226.13
226.17
225.88
225.92
225.90
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Gage Height in Meter (MSL.) Water Year April 1, 2012 to March 31, 2013
7
225.84
227.66
228.52
227.90
225.99
232.13
231.04
226.12
226.14
225.88
225.91
225.85
8
225.87
228.11
229.85
227.05
226.18
234.43
228.87
226.10
226.09
225.87
225.90
225.84
9
225.89
227.88
229.76
226.67
226.66
234.97
229.33
226.11
226.05
225.86
225.85
225.84
10
225.86
226.66
228.38
226.57
227.89
232.78
228.04
226.13
226.06
225.85
225.83
225.84
11
225.89
226.42
227.21
226.64
227.50
231.34
227.91
226.12
226.04
225.85
225.81
225.83
12
225.90
226.32
226.83
227.04
227.00
230.12
227.52
226.16
226.03
225.85
225.80
225.83
13
225.89
226.15
226.64
227.99
226.63
229.84
227.19
226.29
226.03
225.84
225.80
225.82
14
225.85
226.10
226.50
227.40
226.40
229.73
227.08
226.25
226.01
225.84
225.80
225.81
15
225.85
226.16
226.37
226.72
226.30
230.48
226.88
226.18
226.00
225.84
225.80
225.80
16
225.84
226.98
226.29
226.52
226.20
230.01
226.55
226.14
225.97
225.84
225.81
225.80
17
225.86
227.06
226.24
226.34
226.18
228.22
226.78
226.12
225.97
225.84
225.81
225.80
18
225.97
226.66
226.19
226.25
226.16
227.84
226.64
226.10
225.96
225.84
225.81
225.78
19
225.95
226.73
226.15
226.21
226.12
227.57
226.64
226.07
225.95
225.84
225.81
225.78
20
225.85
226.93
226.10
226.16
226.10
227.97
226.60
226.05
225.94
225.84
225.82
225.76
21
225.83
227.29
226.10
226.38
226.07
229.04
226.52
226.04
225.93
225.84
225.81
225.76
22
225.82
227.40
226.10
226.56
226.05
228.02
226.47
226.01
225.92
225.84
225.80
225.75
23
225.79
226.60
226.09
226.27
226.15
227.56
226.48
226.02
225.92
225.83
225.80
225.74
24
225.76
226.21
226.05
226.20
226.41
227.87
226.49
226.13
225.92
225.83
225.81
225.73
25
225.75
226.12
226.06
226.20
226.76
229.16
226.44
226.32
225.91
225.83
225.82
225.72
26
225.77
226.48
226.08
226.23
227.28
228.72
226.37
226.72
225.91
225.82
225.83
225.72
27
225.84
228.46
226.10
226.23
227.63
229.07
226.30
227.24
225.90
225.81
225.82
225.72
28
225.84
227.97
226.10
226.18
227.78
228.79
226.30
227.57
225.89
225.81
225.81
225.72
29
225.83
228.27
226.10
226.15
227.74
227.99
226.28
227.47
225.89
225.80
225.72
30
225.88
228.83
226.09
226.12
227.40
227.49
226.27
227.09
225.89
225.80
225.72
31
228.47
226.10
226.93
226.30
225.89
225.80
225.72
----------
--------------
Mean
225.85
226.92
226.79
226.53
226.57
229.60
227.20
226.32
226.04
225.85
225.83
225.82
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Max
225.97
228.83
229.85
227.99
227.89
234.97
231.04
227.57
226.72
225.89
225.94
226.20
234.97
Min
225.75
225.93
226.05
226.03
225.99
226.55
226.27
226.01
225.89
225.80
225.80
225.72
225.72
235.35
m. (MSL.) ,
225.00
m. (MSL.) ,
River Bed 225.59
m. (MSL)
238.01
m. (MSL.) ,
238.09
m. (MSL.) ,
Drainage Area 949 Square Kilometers
at 16.00 Hours, on Sep 9, 2012
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation