Basic HTML Version
292
Location : on left bank at Ban Tha Phai
-
sq.km.
Amphoe
Sam Ngao
Changwat
Tak
Ban
Tha Phai
WATER YEAR : 2011
WANG RIVER BASIN
Wang River at Ban Tha Phai , Tak (W.24)
Lat 17 - 19 - 11 N Long 99 - 04 - 51 E
Drainge Area
Staff gage
+135.430 m. (MSL.)
B.M.-H.D.
On left bank near the gage site.
Elevation
5-time daily readings at 06.00, 09.00, 12.00, 15.00 and 18.00 hours.
Arithmetic means of 5 readings.
2010 to date
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+146.049 m. (MSL.)
Type of Gage
Bench Mark
Location BM
Rating Operation
Period of Available Gage Records
2010 to date
-
2010 to date
Stable.
Overbank flow starts at elevation +143.960 m. (MSL.), records are channel flow only.
Records good.Stage-discharge relation defined by 24 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
137.12
137.87
138.91
139.56
138.40
141.62
143.59
138.92
137.69
137.12
136.88
136.98
2
137.28
137.87
138.68
139.15
139.92
141.51
143.06
139.19
137.81
137.13
136.88
136.98
3
137.33
137.73
138.50
138.92
143.40
141.89
143.76
139.03
137.82
137.12
137.38
136.98
4
137.34
137.81
138.49
138.97
144.19
141.81
144.09
138.86
137.80
137.12
137.60
136.98
5
137.33
138.13
138.69
139.99
144.39
141.55
144.14
138.66
137.77
137.13
137.70
137.06
6
137.38
138.34
138.70
140.00
144.39
141.03
144.32
138.50
137.76
137.14
137.60
137.15
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Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
137.38
138.45
139.22
139.17
144.23
140.85
144.15
138.43
137.75
137.15
137.52
137.18
8
137.41
138.68
139.53
138.68
143.57
141.10
143.62
138.39
137.70
137.16
137.44
137.22
9
137.38
138.53
139.19
138.40
142.86
141.62
142.68
138.38
137.71
137.16
137.27
137.25
10
137.35
138.80
138.85
138.07
142.43
141.77
142.01
138.38
137.71
137.17
137.15
137.30
11
137.36
142.25
138.51
138.35
142.00
142.20
141.32
138.36
137.70
137.18
137.11
137.35
12
137.39
143.50
138.36
138.47
142.13
143.25
141.03
138.34
137.68
137.19
137.07
137.42
13
137.36
143.37
138.35
138.71
143.11
143.46
140.77
138.32
137.66
137.18
137.04
137.41
14
137.33
141.76
138.35
138.43
143.09
143.65
140.45
138.29
137.63
137.17
137.02
137.25
15
137.32
140.95
138.21
138.13
142.68
143.68
139.85
138.26
137.59
137.21
137.01
137.36
16
137.28
140.77
137.98
138.13
142.26
143.61
140.02
138.23
137.51
137.22
137.05
137.52
17
137.21
140.57
137.83
138.93
142.15
143.60
140.28
138.21
137.42
137.23
137.03
137.47
18
137.15
140.36
137.68
140.06
141.73
143.30
141.14
138.18
137.38
137.24
137.50
137.42
19
137.11
141.22
137.62
140.04
141.82
142.68
141.66
138.18
137.36
137.23
137.68
137.26
20
137.11
141.49
138.02
139.72
142.31
141.90
140.88
138.18
137.34
137.23
137.77
137.27
21
137.15
141.01
138.06
139.40
142.13
141.73
140.35
138.18
137.33
137.22
137.62
137.28
22
137.31
140.49
138.07
138.94
142.61
141.71
139.98
138.16
137.32
137.20
137.45
137.29
23
137.60
139.90
137.98
138.73
142.92
141.57
139.75
138.04
137.31
137.18
137.37
137.24
24
137.87
139.49
137.78
138.58
142.06
141.75
139.49
138.02
137.30
137.18
137.30
137.15
25
137.93
139.28
137.65
138.34
141.20
141.30
139.31
137.95
137.28
137.13
137.23
137.09
26
138.00
139.12
137.62
138.30
140.75
141.69
139.11
137.86
137.25
137.06
137.19
137.02
27
138.22
139.23
137.92
138.54
142.14
141.77
138.96
137.80
137.19
137.03
137.07
136.98
28
137.99
139.41
139.10
139.09
142.31
142.64
138.84
137.73
137.14
137.16
137.01
136.97
29
137.77
139.37
140.14
138.93
142.41
143.36
138.72
137.70
137.12
137.07
136.98
137.05
30
137.78
139.14
140.11
138.50
141.78
143.62
138.61
137.68
137.08
136.92
137.11
31
138.97
138.33
141.57
138.60
137.12
136.88
137.12
----------
--------------
Mean
137.45
139.80
138.47
138.89
142.35
142.24
141.11
138.28
137.49
137.15
137.27
137.20
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Max
138.22
143.50
140.14
140.06
144.39
143.68
144.32
139.19
137.82
137.24
137.77
137.52
144.39
Min
137.11
137.73
137.62
138.07
138.40
140.85
138.60
137.68
137.08
136.88
136.88
136.97
136.88
144.40
m. (MSL.) ,
135.43
m. (MSL.) ,
River Bed 135.49
m. (MSL)
143.95
m. (MSL.) ,
144.18
m. (MSL.) ,
Drainage Area
Square Kilometers
at 06.00 Hours , on Oct 23 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation