Basic HTML Version
74
Location : on right bank at Ban Tha Mao.
13,638 sq.km.
Amphoe
Nam Phong
Changwat
Khon Kaen
Ban
Tha Mao
WATER YEAR : 2012
CHI RIVER BASIN
Lam Nam Phong at Ban Tha Mao , Khon Kaen (E.22B)
Lat 16 - 39 - 13 N Long 102 - 49 - 39 E
Drainge Area
Staff gage
+150.920 m. (MSL.)
B.M.- Highways Dept.
On left bank at the footpath of the bridge.
Elevation
3-time daily readings at 06.00, 12.00 and 18.00 hours.
Arithmetic mean of 3 readings
1965 to date
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+163.911 m. (MSL.)
Type of Gage
Bench Mark
Location BM
Rating Operation
Period of Available Gage Records
1966 - 1972 , 1982 - 1987 , 1992 to date
-
1966 - 1972 , 1982 - 1987 , 1992 to date
Fairly stable.
No overbank flow.
Records fair. Flow regulated by Ubonrat Dam about 35 kilometers above gage site
and Nong Wai weir situated about 5 kilometers above gage site.
Stage-discharge relation defined by 16 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
152.69
151.87
154.60
153.42
151.74
151.53
151.38
151.59
151.51
151.51
151.46
151.59
2
152.53
151.87
154.43
153.51
151.73
151.42
151.35
151.61
151.50
151.49
151.46
151.59
3
152.12
151.87
154.36
153.66
151.71
151.59
151.36
151.59
151.48
151.49
151.44
151.59
4
152.06
151.88
154.07
153.56
151.68
151.61
151.38
151.58
151.54
151.49
151.44
151.58
5
151.97
151.95
153.85
153.36
151.66
151.63
151.40
151.56
151.55
151.49
151.44
151.55
6
151.98
152.08
153.88
152.74
151.58
151.49
151.45
151.56
151.55
151.49
151.44
151.51
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Gage Height in Meter (MSL.) Water Year April 1, 2012 to March 31, 2013
7
152.02
152.43
153.79
152.00
151.63
151.73
151.55
151.54
151.56
151.49
151.44
151.48
8
152.06
152.69
153.69
152.36
151.66
152.39
152.57
151.51
151.58
151.48
151.44
151.46
9
152.06
152.77
153.72
152.59
151.71
152.17
152.37
151.50
151.60
151.47
151.44
151.44
10
152.01
152.81
153.73
152.87
151.69
151.94
152.07
151.54
151.63
151.48
151.44
151.43
11
151.98
152.97
153.85
152.79
151.65
151.71
152.03
151.53
151.68
151.46
151.43
151.46
12
151.97
153.58
154.20
152.67
151.63
151.65
151.78
151.57
151.72
151.46
151.42
151.46
13
151.90
153.79
154.28
152.59
151.63
151.62
151.69
151.59
151.71
151.46
151.42
151.45
14
151.82
153.66
154.32
152.62
151.61
152.07
151.74
151.61
151.47
151.46
151.42
151.41
15
151.89
153.50
154.32
152.72
151.61
152.44
151.48
151.61
151.47
151.46
151.42
151.37
16
151.79
153.19
154.31
152.75
151.55
152.12
151.51
151.61
151.46
151.46
151.42
151.36
17
151.72
153.12
154.31
152.39
151.60
151.84
151.56
151.61
151.46
151.46
151.41
151.35
18
151.72
153.12
154.32
152.38
151.61
151.66
151.64
151.60
151.47
151.46
151.39
151.34
19
151.73
153.12
154.30
152.00
151.59
151.60
151.61
151.55
151.48
151.46
151.40
151.34
20
151.76
153.14
154.32
151.74
151.58
151.59
151.61
151.41
151.47
151.46
151.42
151.38
21
151.78
153.16
154.29
151.76
151.59
151.53
151.60
151.46
151.48
151.46
151.43
151.41
22
151.82
153.18
154.25
151.73
151.56
151.51
151.59
151.49
151.46
151.43
151.44
151.40
23
151.79
153.23
154.19
151.72
151.56
151.57
151.57
151.51
151.47
151.46
151.47
151.41
24
151.64
153.26
154.20
151.74
151.54
151.68
151.60
151.52
151.49
151.46
151.56
151.43
25
151.71
153.24
154.14
151.78
151.56
151.61
151.59
151.54
151.49
151.46
151.56
151.47
26
151.82
153.39
153.89
151.79
151.56
151.53
151.57
151.56
151.48
151.46
151.57
151.48
27
151.82
154.13
153.78
151.74
151.54
151.54
151.57
151.57
151.46
151.46
151.59
151.49
28
151.83
154.91
153.64
151.74
151.54
151.54
151.58
151.59
151.45
151.47
151.59
151.47
29
151.85
155.08
153.54
151.74
151.54
151.51
151.57
151.59
151.48
151.48
151.44
30
151.87
154.78
153.46
151.76
151.56
151.39
151.56
151.49
151.47
151.46
151.44
31
154.71
151.74
151.55
151.59
151.49
151.45
151.43
----------
--------------
Mean
151.92
153.18
154.07
152.39
151.61
151.71
151.64
151.55
151.52
151.47
151.46
151.45
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Max
152.69
155.08
154.60
153.66
151.74
152.44
152.57
151.61
151.72
151.51
151.59
151.59
155.08
Min
151.64
151.87
153.46
151.72
151.54
151.39
151.35
151.41
151.45
151.43
151.39
151.34
151.34
155.18
m. (MSL.) ,
150.92
m. (MSL.) ,
River Bed 150.51
m. (MSL)
163.60
m. (MSL.) ,
163.65
m. (MSL.) ,
Drainage Area 13638 Square Kilometers
at 06.00 Hours, on May 29, 2012
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation