Basic HTML Version
62
Location : on right bank at Ban Tha Sa Bang.
41,187 sq.km.
Amphoe
Thung Khao Luang
Changwat
Roi Et
Ban
Tha Sa Bang
WATER YEAR : 2011
CHI RIVER BASIN
Chi River at Ban Tha Sa Bang , Roi Et (E.18)
Lat 16 - 01 - 59 N Long 103 - 54 - 41 E
Drainge Area
Staff gage
+122.240 m. (MSL.)
B.M.- H.D.
On right bank at the abutment of the bridge.
Elevation
3-time daily readings at 06.00, 12.00 and 18.00 hours.
Arithmetic means of 3 readings
1954 to date
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+132.496 m. (MSL.)
Type of Gage
Bench Mark
Location BM
Rating Operation
Period of Available Gage Records
1974 to date
-
1974 to date
Rather unstable.
Overbank flow starts at elevation +132.520 m.(MSL.), records are channel flow only.
Records fair. Stage-discharge relation defined by 72 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
125.06
125.12
125.22
124.89
127.65
130.50
132.64
132.96
129.16
125.71
125.44
125.84
2
125.08
125.12
125.13
124.93
127.78
130.54
132.73
132.92
128.50
125.79
125.48
125.57
3
125.06
125.13
125.08
124.96
127.86
130.59
132.79
132.86
127.84
126.01
125.51
125.16
4
125.02
125.15
125.18
125.07
127.93
130.61
132.78
132.81
127.34
125.80
125.55
124.51
5
124.89
125.20
125.39
125.13
127.98
130.70
132.78
132.75
126.89
125.68
125.65
124.69
6
124.71
125.30
125.56
125.05
128.01
130.78
132.80
132.70
126.54
125.69
125.82
125.28
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Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
124.74
125.38
125.85
125.01
127.99
130.85
132.81
132.66
126.43
125.74
125.76
125.32
8
124.85
125.32
126.35
124.97
128.00
130.93
132.83
132.56
126.15
125.76
125.71
125.25
9
125.01
125.20
126.62
124.93
128.12
131.02
132.86
132.53
126.06
125.72
125.58
125.57
10
125.06
125.09
126.68
125.01
128.44
131.10
132.89
132.52
126.19
125.56
125.55
125.52
11
125.12
125.02
126.60
125.19
128.90
131.20
132.92
132.49
126.06
125.71
125.54
125.63
12
125.18
125.02
126.48
125.29
129.12
131.30
132.97
132.46
125.94
125.67
125.50
125.76
13
125.14
125.13
126.42
125.52
129.20
131.38
133.02
132.43
125.88
125.78
125.30
125.46
14
125.05
125.45
126.41
125.76
129.19
131.47
133.06
132.40
125.92
125.80
125.08
125.23
15
124.99
125.87
126.45
126.25
129.20
131.57
133.10
132.38
125.97
125.80
125.17
125.28
16
124.96
125.81
126.37
126.65
129.26
131.68
133.12
132.12
125.93
125.81
125.57
125.46
17
125.03
125.54
126.22
126.67
129.31
131.75
133.11
132.03
125.87
125.91
125.77
125.33
18
125.02
125.51
125.94
126.59
129.40
131.77
133.11
131.95
125.85
125.84
125.86
125.50
19
125.05
125.53
125.69
126.46
129.62
131.84
133.10
131.87
125.80
125.99
125.82
125.46
20
125.01
125.53
125.66
126.35
129.85
131.88
133.10
131.78
125.65
126.43
125.74
125.58
21
125.04
125.54
125.76
126.14
130.02
131.94
133.06
131.69
125.43
126.90
125.63
125.59
22
125.08
125.55
125.72
125.98
130.19
132.02
133.00
131.60
125.40
127.17
125.42
125.52
23
125.08
125.57
125.59
126.11
130.30
132.09
132.99
131.50
125.41
127.50
125.49
125.50
24
125.09
125.66
125.38
126.28
130.39
132.17
133.02
131.38
125.31
127.51
125.54
125.57
25
125.07
125.71
125.13
126.39
130.50
132.17
133.06
131.26
125.20
127.06
125.54
125.47
26
124.97
125.65
124.89
126.51
130.53
132.31
133.09
131.11
124.85
126.63
125.54
125.39
27
124.91
125.63
124.72
126.73
130.54
132.40
133.09
130.90
124.87
126.30
125.51
125.34
28
124.97
125.60
124.57
126.94
130.54
132.48
133.08
130.61
125.19
126.13
125.36
125.35
29
125.14
125.64
124.56
127.16
130.51
132.55
133.07
130.26
125.58
125.92
125.64
124.98
30
125.08
125.56
124.80
127.36
130.49
132.60
133.04
129.85
125.73
125.84
124.74
31
125.44
127.53
130.49
133.00
125.78
125.69
124.69
----------
--------------
Mean
125.02
125.42
125.68
125.93
129.27
131.54
132.97
131.98
126.09
126.09
125.55
125.34
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Max
125.18
125.87
126.68
127.53
130.54
132.60
133.12
132.96
129.16
127.51
125.86
125.84
133.12
Min
124.71
125.02
124.56
124.89
127.65
130.50
132.64
129.85
124.85
125.56
125.08
124.51
124.51
133.12
m. (MSL.) ,
122.24
m. (MSL.) ,
River Bed 120.70
m. (MSL)
132.64
m. (MSL.) ,
132.51
m. (MSL.) ,
Drainage Area 41187
Square Kilometers
at 04.00 Hours, on Oct 16, 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation