86
i
l f b k h b id hi h
WATER YEAR : 2013
CHI RIVER BASIN
Chi River at Ban Khai , Chaiyaphum (E.23)
Lat 15 - 40 - 49 N Long 102 - 00 - 46 E
Locat on : on e t an at t e r ge on g way.
6,282
sq.km.
Water - stage recorder
+176.200 m. (MSL.)
B.M.- H.D.
On left bank about 20 meters from the automatic gage building.
Elevation
Recording
+185.546 m. (MSL.)
Bench Mark
Type of Gage
Amphoe
Mueang
Changwat
Chaiyaphum
Ban
Khai
Drainge Area
Location BM
Gage Reading Frequency
Zero Gage at Bottom
Arithmetic mean of 24 readings
1954 - 1956 , 1967 to date
1968 - 1974 , 1982 to date
-
1968 - 1974 , 1982 to date
Fairly stable.
Overbank flow starts at elevation +185.090 m.(MSL.), records are channel flow only.
Rated by Current Meter
Stability of Channel Regimes
Overbank Flow Conditions
Rating Operation
Period of Rating
Rated by Flot
Period of Available Gage Records
Basis of Mean Daily Gage Height
Records good. The local weir situated about 50 meters downstream from the gage site.
Stage-discharge relation defined by 27 discharge measurements made in 2013.
Date
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Annual
----------
-----------------
1
179.64
179.56
179.51
179.47
181.27
180.50
185.72
183.31
179.89
179.75
179.42
178.73
2
179.61
179.53
179.51
179.48
180.91
180.61
185.72
182.92
179.87
179.76
179.41
178.94
3
179.61
179.50
179.41
179.42
180.61
180.64
185.71
182.50
179.85
179.74
179.39
178.92
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Gage Height in Meter (MSL.) Water Year April 1, 2013 to March 31, 2014
General Description
4
179.63
179.53
179.41
179.43
180.41
180.55
185.70
182.17
179.84
179.71
179.38
178.88
5
179.64
179.59
179.40
179.42
180.26
180.41
185.69
181.87
179.83
179.71
179.38
178.78
6
179.62
179.68
179.39
179.37
180.13
180.27
185.68
181.65
179.83
179.70
179.37
178.68
7
179.60
179.70
179.40
179.36
179.98
180.28
185.67
181.48
179.81
179.69
179.34
178.58
8
179.57
179.68
179.39
179.56
180.06
180.32
185.64
181.36
179.80
179.68
179.28
178.57
9
179.53
179.66
179.42
180.02
180.06
180.54
185.53
181.29
179.79
179.66
179.28
178.73
10
179.48
179.66
179.53
180.34
180.01
180.85
185.33
181.23
179.77
179.65
179.25
179.03
11
179.44
179.65
179.53
180.56
180.28
181.07
185.11
181.18
179.75
179.64
179.21
179.18
12
179 45
179 64
179 55
180 42
180 91
181 23
184 87
181 02
179 73
179 65
179 16
178 98
.
.
.
.
.
.
.
.
.
.
.
.
13
179.63
179.63
179.49
180.41
181.76
181.25
184.64
180.90
179.72
179.64
179.11
178.92
14
179.74
179.62
179.46
180.24
181.94
181.41
184.42
180.78
179.71
179.64
179.05
178.90
15
179.76
179.60
179.50
180.03
181.60
181.85
184.24
180.73
179.70
179.64
179.11
178.88
16
179.74
179.58
179.53
179.92
181.20
182.17
184.11
180.70
179.72
179.65
179.25
178.86
17
179.74
179.57
179.56
179.77
180.95
182.30
184.01
180.67
179.74
179.66
179.41
178.82
18
179.74
179.55
179.49
179.56
180.78
182.28
183.91
180.64
179.81
179.65
179.46
178.64
19
179.73
179.53
179.27
179.53
180.50
182.38
183.82
180.60
179.84
179.65
179.48
178.49
20
179.68
179.51
179.13
179.45
180.36
182.57
183.86
180.56
179.85
179.64
179.29
178.53
21
179.70
179.50
179.31
179.36
180.26
182.77
183.97
180.46
179.85
179.63
179.05
178.98
22
179.68
179.48
179.30
179.23
180.17
183.21
184.07
180.37
179.82
179.62
178.81
179.09
23
179.66
179.48
179.33
179.26
180.10
183.65
184.14
180.18
179.80
179.61
178.75
179.09
24
179.64
179.50
179.47
179.67
180.09
183.94
184.20
180.09
179.78
179.59
178.71
179.05
25
179.60
179.51
179.50
180.43
180.22
184.30
184.23
180.02
179.76
179.58
178.69
179.08
26
179.59
179.51
179.50
181.11
180.57
184.70
184.20
179.97
179.76
179.57
178.64
179.06
27
179.58
179.50
179.48
181.41
180.59
185.16
184.13
179.96
179.78
179.57
178.59
178.97
28
179.58
179.49
179.48
181.16
180.50
185.59
184.06
179.95
179.77
179.54
178.58
178.84
29
179.58
179.48
179.49
180.72
180.44
185.65
183.96
179.93
179.77
179.50
178.58
30
179.57
179.48
179.45
180.84
180.44
185.69
183.82
179.90
179.76
179.46
178.44
31
179.48
181.29
180.45
183.61
179.75
179.43
178.41
----------
--------------
Mean
179.63
179.56
179.44
180.01
180.57
182.27
184.64
180.95
179.79
179.63
179.14
178.83
Max
179.76
179.70
179.56
181.41
181.94
185.69
185.72
183.31
179.89
179.76
179.48
179.18
185.72
Min
179.44
179.48
179.13
179.23
179.98
180.27
183.61
179.90
179.70
179.43
178.58
178.41
178.41
185.72
m. (MSL.) ,
176.20
m. (MSL.) ,
River Bed 175.29
m. (MSL.)
185.08
m. (MSL.) ,
185.44
m. (MSL.) ,
Drainage Area 6282 Square Kilometers
at 03.00 Hours, on Oct 1, 2013
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation
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