Page 110 - yearbook2011

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76
Location : on right bank at Ban Kaeng Yao about 2 kilometers downstream from proposed of USBR Damsite.
1,548
sq.km.
WATER YEAR : 2011
CHI RIVER BASIN
Nam Yang at Ban Kaeng Yao , Kalasin (E.54)
Lat 16 - 26 - 28 N Long 104 - 02 - 05 E
Drainge Area
Amphoe
Kuchinarai
Changwat
Kalasin
Ban
Kaeng Yao
Water - stage recorder
+138.340 m. (MSL.)
B.M.- H.D.
On right bank at the abutment of the bridge.
Elevation
Recording
Arithmetic means of 24 readings
1969 to date
Rating Operation
Period of Available Gage Records
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+149.988 m. (MSL.)
Type of Gage
Bench Mark
Location BM
1969 - 1977 , 1983 to date
-
1969 - 1977 , 1983 to date
Rather unstable.
No overbank flow.
Records fair. The weir situated about 100 meters downstream from the gage site.
Stage-discharge relation defined by 16 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
138.60
138.80
140.45
140.34
141.77
142.07
140.84
140.44
140.30
140.30
139.84
140.26
2
138.59
138.88
140.45
140.35
142.56
142.41
140.82
140.44
140.30
140.30
139.84
140.26
3
138.58
138.96
140.44
140.39
143.31
142.40
141.41
140.44
140.30
140.25
139.93
140.26
4
138.57
139.04
140.44
140.51
142.85
142.93
141.49
140.42
140.30
140.24
139.94
140.26
5
138.56
139.11
140.44
140.63
142.11
144.28
141.35
140.42
140.30
140.24
140.04
140.26
6
138.55
139.18
140.43
140.67
141.36
144.71
141.04
140.42
140.30
140.15
140.04
140.26
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Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
138.54
139.27
140.42
140.57
140.95
144.31
140.90
140.42
140.30
140.14
140.14
140.26
8
138.53
139.34
140.41
140.42
141.55
143.53
140.80
140.41
140.30
140.14
140.14
140.26
9
138.52
139.42
140.40
140.36
143.18
143.72
140.71
140.40
140.30
140.14
140.24
140.26
10
138.51
139.50
140.39
140.40
145.42
145.09
140.62
140.40
140.30
140.14
140.24
140.26
11
138.50
139.58
140.39
140.52
145.58
145.06
140.60
140.39
140.30
140.05
140.26
140.26
12
138.49
139.71
140.39
140.54
145.01
144.62
140.61
140.38
140.30
140.04
140.27
140.26
13
138.48
139.91
140.39
140.54
143.48
144.24
140.79
140.36
140.30
140.04
140.28
140.26
14
138.47
140.12
140.40
140.60
142.32
143.72
141.31
140.36
140.30
139.95
140.28
140.26
15
138.45
140.31
140.40
140.74
142.07
143.37
141.69
140.36
140.30
139.94
140.28
140.26
16
138.44
140.45
140.41
140.79
142.39
142.96
141.68
140.34
140.30
139.94
140.27
140.26
17
138.44
140.46
140.38
140.88
142.97
142.42
141.44
140.34
140.30
139.94
140.27
140.26
18
138.44
140.46
140.36
140.94
143.60
142.13
141.15
140.34
140.30
139.94
140.27
140.26
19
138.46
140.46
140.34
140.89
144.58
142.06
140.92
140.34
140.30
139.89
140.26
140.26
20
138.54
140.46
140.34
140.73
146.01
142.25
140.82
140.34
140.30
139.89
140.26
140.26
21
138.45
140.46
140.34
140.65
146.06
142.38
140.72
140.34
140.30
139.85
140.26
140.26
22
138.46
140.46
140.33
141.18
145.63
142.64
140.62
140.32
140.30
139.84
140.26
140.26
23
138.47
140.46
140.31
140.92
143.99
142.75
140.56
140.32
140.30
139.84
140.26
140.26
24
138.48
140.46
140.29
142.11
142.70
142.21
140.56
140.32
140.30
139.84
140.26
140.26
25
138.49
140.46
140.26
142.63
141.94
141.72
140.55
140.32
140.30
139.84
140.26
140.26
26
138.50
140.46
140.24
143.28
141.44
141.28
140.54
140.32
140.30
139.84
140.26
140.26
27
138.51
140.46
140.22
142.94
141.22
141.03
140.52
140.32
140.30
139.84
140.26
140.26
28
138.55
140.46
140.22
142.30
141.16
141.00
140.49
140.32
140.30
139.84
140.26
140.26
29
138.64
140.46
140.21
142.07
140.93
140.98
140.46
140.32
140.30
139.84
140.26
140.26
30
138.72
140.46
140.22
141.61
140.89
140.92
140.46
140.32
140.30
139.84
140.26
31
140.45
141.53
141.45
140.46
140.30
139.84
140.26
----------
--------------
Mean
138.52
139.95
140.36
141.07
142.92
142.84
140.87
140.37
140.30
140.00
140.19
140.26
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Max
138.72
140.46
140.45
143.28
146.06
145.09
141.69
140.44
140.30
140.30
140.28
140.26
146.06
Min
138.44
138.80
140.21
140.34
140.89
140.92
140.46
140.32
140.30
139.84
139.84
140.26
138.44
146.14
m. (MSL.) ,
138.34
m. (MSL.) ,
River Bed 138.15
m. (MSL)
148.20
m. (MSL.) ,
147.80
m. (MSL.) ,
Drainage Area 1548 Square Kilometers
at 18.00 Hours, on Aug 20, 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation