Basic HTML Version
66
Location : on left bank about 75 meters upstream from the bridge on highway.
8,777
sq.km.
WATER YEAR : 2011
CHI RIVER BASIN
Chi River at Ban Kaeng Ko , Chaiyaphum (E.21)
Lat 15 - 45 - 07 N Long 102 - 15 - 25 E
Amphoe
Mueang
Changwat
Chaiyaphum
Ban
Kaeng Ko
Drainge Area
Staff gage
+164.980 m. (MSL.)
B.M.- H.D.
In front of the automatic gage buiding.
Elevation
3-time daily readings at 06.00, 12.00 and 18.00 hours.
Arithmetic means of 3 readings
1955 - 1957 , 1967 to date
+177.385 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
1968 - 1971 , 1973 - 1974 , 1982 to date
-
1968 - 1971 , 1973 - 1974 , 1982 to date
Rather unstable.
No overbank flow.
Records fair. The rubber weir situated about 2 kilometers downstream from the gage site.
Stage-discharge relation defined by 18 discharge measurements made in 2011.
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
166.31
166.10
167.78
167.58
167.83
171.83
174.30
172.31
167.61
167.43
167.37
166.44
2
166.31
166.10
167.72
167.61
167.86
171.92
174.24
172.05
167.56
167.45
167.36
166.41
3
166.31
166.10
167.68
167.66
168.16
172.01
174.18
171.67
167.31
167.45
167.35
166.38
4
166.30
166.36
167.73
167.74
168.31
172.07
174.13
171.05
167.50
167.44
167.34
166.33
5
166.30
166.89
167.88
167.61
168.43
172.10
174.13
170.42
167.52
167.44
167.34
166.29
6
166.30
166.62
168.17
167.70
168.59
172.12
174.22
169.86
167.49
167.42
167.32
166.25
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Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
166.28
166.62
168.42
167.62
168.78
172.17
174.31
169.38
167.46
167.41
167.30
166.21
8
166.26
166.82
168.48
167.33
168.88
172.19
174.37
168.95
167.25
167.41
167.26
166.20
9
166.24
167.13
168.17
167.46
168.97
172.22
174.38
168.59
166.73
167.40
167.21
166.19
10
166.22
167.37
167.74
167.49
169.04
172.25
174.36
168.36
166.88
167.37
167.17
166.18
11
166.22
167.40
167.45
167.44
169.06
172.32
174.33
168.16
167.30
167.34
167.14
166.18
12
166.22
167.38
167.31
167.39
169.06
172.42
174.29
168.03
167.42
167.31
167.10
166.19
13
166.23
167.39
167.19
167.38
169.04
172.48
174.25
167.95
167.40
167.28
167.07
166.19
14
166.25
167.43
167.13
167.37
169.00
172.53
174.18
167.79
167.42
167.23
167.03
166.19
15
166.23
167.49
167.02
167.46
168.93
172.61
174.10
167.64
167.40
167.18
166.99
166.18
16
166.22
167.54
167.22
167.48
168.81
172.71
174.02
167.46
167.42
166.86
166.96
166.18
17
166.23
167.58
167.51
167.50
168.67
172.82
173.95
167.44
167.40
166.73
166.92
166.18
18
166.21
167.59
167.58
167.59
168.60
172.93
173.86
167.38
167.39
166.67
166.88
166.18
19
166.19
167.63
167.59
167.68
168.68
173.25
173.78
167.34
167.40
166.61
166.84
166.18
20
166.15
167.60
167.57
167.77
168.94
173.85
173.71
167.31
167.41
166.58
166.79
166.19
21
166.14
167.55
167.55
167.80
169.19
174.50
173.64
167.26
167.44
166.59
166.76
166.18
22
166.13
167.40
167.54
167.83
169.42
174.69
173.58
167.21
167.44
166.62
166.73
166.15
23
166.13
167.61
167.57
167.87
169.61
174.69
173.51
167.16
167.46
166.62
166.70
166.11
24
166.14
167.57
167.42
167.90
169.86
174.63
173.44
167.12
167.45
166.63
166.68
166.05
25
166.13
167.56
167.45
167.93
170.11
174.59
173.37
167.09
167.46
166.70
166.65
166.03
26
166.12
167.47
167.47
168.00
170.38
174.53
173.28
167.06
167.45
167.00
166.60
166.01
27
166.12
167.50
167.46
168.11
170.66
174.48
173.16
167.03
167.43
167.31
166.58
165.98
28
166.11
167.50
167.45
168.00
170.91
174.47
173.03
167.00
167.44
167.40
166.55
165.98
29
166.13
167.51
167.44
168.19
171.17
174.45
172.87
167.35
167.44
167.40
166.49
165.97
30
166.13
167.52
167.50
168.16
171.42
174.38
172.69
167.59
167.45
167.41
165.96
31
167.60
167.97
171.63
172.51
167.45
167.39
165.95
----------
--------------
Mean
166.21
167.22
167.61
167.70
169.29
173.14
173.81
168.37
167.39
167.13
166.98
166.16
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Max
166.31
167.63
168.48
168.19
171.63
174.69
174.38
172.31
167.61
167.45
167.37
166.44
174.69
Min
166.11
166.10
167.02
167.33
167.83
171.83
172.51
167.00
166.73
166.58
166.49
165.95
165.95
174.71
m. (MSL.) ,
164.98
m. (MSL.) ,
River Bed 163.43
m. (MSL)
175.28
m. (MSL.) ,
175.40
m. (MSL.) ,
Drainage Area 8777 Square Kilometers
at 20.00 Hours, on Sep 22, 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation