Basic HTML Version
98
Location : on left bank at the bridge on highway.
2,149
sq.km.
WATER YEAR : 2014
CHI RIVER BASIN
Lam Pao at Ban Tha Hai , Udon Thani (E.65)
Lat 16 - 57 - 02 N Long 103 - 10 - 16 E
Amphoe
Si That
Changwat
Udon Thani
Ban
Tha Hai
Drainge Area
Water - stage recorder
+158.990 m. (MSL.)
B.M.- Highways Dept.
On left bank at the abutment of the bridge.
Elevation
Recording
Arithmetic mean of 24 readings
1983 to date
+169.494 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
1983 to date
-
1983 to date
Rather unstable.
No overbank flow.
Records fair. Flow effected by Lam Pao Dam.
Stage-discharge relation defined by 16 discharge measurements made in 2014.
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
160.00
160.14
159.95
160.01
163.73
165.31
163.20
162.78
162.37
162.24
161.48
160.49
2
160.00
160.83
159.95
160.17
163.63
165.46
163.27
162.78
162.37
162.23
161.45
160.49
3
160.00
161.70
159.94
160.23
163.61
165.36
163.26
162.77
162.36
162.22
161.42
160.48
4
160.00
161.21
159.94
160.25
163.58
165.26
163.29
162.75
162.36
162.21
161.38
160.48
5
160.00
160.81
159.94
160.28
163.47
165.16
163.34
162.75
162.35
162.20
161.34
160.47
6
159.99
160.49
159.94
160.30
163.25
165.13
163.33
162.71
162.35
162.19
161.31
160.46
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Gage Height in Meter (MSL.) Water Year April 1, 2014 to March 31, 2015
7
159.99
160.40
159.94
160.31
162.98
164.92
163.21
162.68
162.34
162.18
161.28
160.44
8
159.99
160.37
159.93
160.33
162.96
164.71
163.01
162.65
162.34
162.17
161.25
160.43
9
159.99
160.33
159.93
160.31
162.95
164.70
162.99
162.62
162.33
162.15
161.23
160.41
10
159.99
160.25
159.93
160.29
162.92
164.62
162.95
162.60
162.33
162.11
161.23
160.39
11
159.98
160.20
159.92
160.34
162.87
164.23
162.92
162.59
162.32
162.00
161.21
160.36
12
159.98
160.14
159.92
160.37
162.82
163.67
162.89
162.59
162.32
161.89
161.17
160.32
13
159.98
160.10
159.92
160.38
162.78
162.80
162.85
162.58
162.31
161.81
161.13
160.29
14
159.98
160.06
159.92
160.58
162.82
162.84
162.84
162.56
162.31
161.70
161.08
160.29
15
159.96
160.04
159.92
160.82
163.17
163.06
162.84
162.53
162.30
161.69
161.02
160.28
16
159.94
160.03
159.92
160.93
164.17
163.05
162.82
162.50
162.29
161.69
160.98
160.25
17
159.94
160.02
159.92
161.14
164.82
163.04
162.79
162.46
162.28
161.69
160.95
160.24
18
159.94
160.01
159.92
161.91
165.04
163.03
162.77
162.44
162.28
161.67
160.92
160.22
19
159.94
159.99
159.93
162.48
164.89
162.98
162.74
162.43
162.27
161.66
160.89
160.20
20
159.94
159.97
159.93
162.56
164.77
162.94
162.69
162.42
162.27
161.66
160.86
160.19
21
159.93
159.95
159.93
162.43
164.78
162.99
162.68
162.41
162.26
161.65
160.84
160.18
22
159.93
159.94
159.93
162.48
164.95
163.18
162.65
162.40
162.26
161.64
160.82
160.17
23
159.93
159.94
159.94
163.33
164.97
163.28
162.62
162.39
162.26
161.63
160.80
160.16
24
159.93
159.93
159.94
163.65
164.76
163.35
162.60
162.39
162.26
161.61
160.76
160.15
25
159.92
159.94
159.94
163.78
164.15
163.51
162.57
162.39
162.25
161.59
160.72
160.14
26
159.92
159.93
159.95
163.82
165.00
163.79
162.55
162.38
162.25
161.56
160.64
160.13
27
159.91
159.94
159.96
163.82
165.08
163.73
162.53
162.38
162.24
161.54
160.59
160.12
28
159.92
159.94
159.95
163.78
165.09
163.60
162.51
162.38
162.24
161.52
160.53
160.11
29
159.98
159.94
159.95
163.77
165.21
163.39
162.63
162.37
162.24
161.51
160.11
30
160.04
159.94
159.94
163.80
165.33
163.12
162.90
162.37
162.24
161.50
160.10
31
159.94
163.82
165.34
162.86
162.24
161.49
160.09
----------
--------------
Mean
159.96
160.21
159.93
161.69
164.06
163.87
162.87
162.53
162.30
161.83
161.05
160.28
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Max
160.04
161.70
159.96
163.82
165.34
165.46
163.34
162.78
162.37
162.24
161.48
160.49
165.46
Min
159.91
159.93
159.92
160.01
162.78
162.80
162.51
162.37
162.24
161.49
160.53
160.09
159.91
165.49
m. (MSL.) ,
158.99
m. (MSL.) ,
River Bed 159.12
m. (MSL.)
169.45
m. (MSL.) ,
166.42
m. (MSL.) ,
Drainage Area 2149 Square Kilometers
at 24.00 Hours, on Sep 1, 2014
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation