Basic HTML Version
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WATER YEAR : 2013
CHI RIVER BASIN
Lam Nam Phong at Ban Tha Mao , Khon Kaen (E.22B)
Lat 16 - 39 - 13 N Long 102 - 49 - 39 E
Locat on : on r g t an at Ban T a Mao.
13,638 sq.km.
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.
Amphoe
Nam Phong
Changwat
Khon Kaen
Ban
Tha Mao
Gage Reading Frequency
Zero Gage at Bottom
+163.911 m. (MSL.)
Type of Gage
Bench Mark
Location BM
Drainge Area
Arithmetic mean of 3 readings
1965 to date
1966 - 1972 , 1982 - 1987 , 1992 to date
-
1966 - 1972 , 1982 - 1987 , 1992 to date
Fairly stable.
No overbank flow.
Basis of Mean Daily Gage Height
Rated by Current Meter
Stability of Channel Regimes
Overbank Flow Conditions
Rating Operation
Period of Rating
Rated by Flot
Period of Available Gage Records
Records good. 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 21 discharge measurements made in 2013.
Date
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Annual
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-----------------
1
151.43
151.48
151.43
151.47
151.47
152.08
157.98
155.07
152.24
154.33
152.69
152.41
2
151.46
151.46
151.43
151.46
151.44
152.00
158.08
154.92
152.21
154.32
152.41
152.43
3
151.44
151.45
151.47
151.44
151.67
151.97
157.94
154.76
152.17
154.25
152.49
152.48
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Gage Height in Meter (MSL.) Water Year April 1, 2013 to March 31, 2014
General Description
4
151.47
151.47
151.47
151.42
152.89
151.94
158.37
154.68
152.10
154.15
152.50
152.50
5
151.54
151.48
151.44
151.42
153.57
151.90
158.50
154.56
152.10
154.12
152.64
152.42
6
151.54
151.46
151.48
151.42
153.89
151.91
158.26
154.52
152.11
153.90
152.88
152.20
7
151.47
151.45
151.54
151.42
154.34
151.89
158.29
154.52
152.14
153.16
152.76
151.74
8
151.48
151.46
151.60
151.42
154.84
151.90
158.04
154.50
152.17
152.50
152.57
151.71
9
151.47
151.47
151.52
151.42
154.92
151.90
158.05
154.50
152.24
151.76
152.42
151.70
10
151.49
151.50
151.53
151.43
155.14
151.86
156.99
154.50
152.36
151.61
152.46
151.64
11
151.49
151.53
151.63
151.43
155.32
151.80
155.57
154.39
152.24
151.66
152.50
151.72
12
151 48
151 56
151 77
151 46
155 42
152 01
154 76
154 03
151 67
151 71
152 24
151 73
.
.
.
.
.
.
.
.
.
.
.
.
13
151.46
151.59
151.73
151.45
155.34
152.12
153.40
153.73
151.60
151.75
152.12
151.74
14
151.44
151.59
151.62
151.44
155.12
152.53
153.05
153.60
151.73
151.82
152.28
151.69
15
151.44
151.46
151.53
151.49
154.96
153.08
152.86
153.32
152.04
151.87
152.86
151.63
16
151.46
151.47
151.54
151.57
154.81
153.18
152.60
152.71
152.43
151.88
153.04
151.66
17
151.51
151.54
151.49
151.47
154.55
153.13
152.39
152.69
152.71
151.82
152.87
151.68
18
151.51
151.46
151.47
151.45
154.32
153.09
152.11
152.64
153.09
151.90
152.51
151.69
19
151.51
151.42
151.47
151.44
154.25
152.92
152.14
152.65
153.50
152.03
152.09
151.72
20
151.52
151.44
151.44
151.42
154.22
152.86
152.42
152.70
153.58
152.08
152.09
151.72
21
151.55
151.47
151.42
151.41
154.26
152.84
152.39
152.68
153.80
152.04
152.02
151.63
22
151.58
151.42
151.42
151.40
154.40
152.84
152.45
152.64
154.02
152.12
152.05
151.42
23
151.50
151.44
151.42
151.42
154.54
152.82
152.36
152.59
154.14
152.10
152.23
151.44
24
151.46
151.49
151.41
151.43
154.60
152.70
152.33
152.60
154.17
152.03
152.43
151.49
25
151.56
151.49
151.40
151.45
154.61
152.45
152.32
152.59
154.20
152.10
152.46
151.52
26
151.61
151.50
151.43
151.42
154.47
152.93
152.31
152.48
154.33
152.04
152.45
151.53
27
151.61
151.49
151.47
151.42
154.26
154.55
152.36
152.37
154.41
151.95
152.44
151.55
28
151.61
151.44
151.50
151.42
153.88
156.01
152.54
152.32
154.39
152.04
152.39
151.52
29
151.60
151.44
151.46
151.42
153.21
156.57
152.49
152.29
154.37
152.05
151.52
30
151.54
151.49
151.47
151.43
152.67
157.17
152.76
152.26
154.35
152.45
151.65
31
151.49
151.48
152.34
153.75
154.34
152.77
151.86
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--------------
Mean
151.51
151.48
151.50
151.44
154.06
152.90
154.51
153.46
153.00
152.46
152.46
151.79
Max
151.61
151.59
151.77
151.57
155.42
157.17
158.50
155.07
154.41
154.33
153.04
152.50
158.50
Min
151.43
151.42
151.40
151.40
151.44
151.80
152.11
152.26
151.60
151.61
152.02
151.42
151.40
158.61
m. (MSL.) ,
150.92
m. (MSL.) ,
River Bed 150.11
m. (MSL.)
163.17
m. (MSL.) ,
163.50
m. (MSL.) ,
Drainage Area 13638 Square Kilometers
at 17.00 Hours, on Oct 5, 2013
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation
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