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WATER YEAR : 2013
WANG RIVER BASIN
Wang River at Ban Chiang Rai , Tak (W.23)
Lat 17 - 22 - 01 N Long 99 - 06 - 55 E
Locat on : on e t an at Amp oe Sam Ngao.
9,930
sq.km.
Staff gage
+141.291 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.
Drainge Area
Location BM
Gage Reading Frequency
Zero Gage at Bottom
+148.844 m. (MSL.)
Bench Mark
Type of Gage
Amphoe
Sam Ngao
Changwat
Tak
Ban
Chiang Rai
Arithmetic mean of 5 readings.
2001 to date
2001 to date
-
2001 to date
Stable.
No overbank flow.
Rating Operation
Period of Rating
Rated by Flot
Period of Available Gage Records
Basis of Mean Daily Gage Height
Rated by Current Meter
Stability of Channel Regimes
Overbank Flow Conditions
Records very good.Stage-discharge relation defined by 20 discharge measurements made in 2013.
Date
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Annual
----------
-----------------
1
142.13
142.09
142.17
142.11
142.42
142.59
144.38
143.37
142.42
142.14
142.21
142.04
2
142.14
142.06
142.05
142.11
142.55
142.84
144.28
143.54
142.98
142.14
142.14
142.04
3
142.12
142.07
142.03
142.09
142.50
143.28
144.19
143.43
142.85
142.14
142.13
142.04
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Gage Height in Meter (MSL.) Water Year April 1, 2013 to March 31, 2014
General Description
4
142.11
142.07
142.00
142.08
142.52
143.04
144.26
143.30
142.68
142.26
142.09
142.01
5
142.08
142.09
141.94
142.09
142.56
142.77
144.59
143.14
142.59
142.29
142.08
141.99
6
142.05
142.20
141.89
142.03
142.51
142.61
143.97
143.09
142.56
142.29
142.07
141.94
7
142.00
142.16
142.00
142.11
142.49
142.55
143.54
142.96
142.50
142.29
142.04
141.93
8
141.98
142.14
142.00
142.17
142.56
142.64
144.02
142.88
142.45
142.29
142.04
141.91
9
141.95
142.12
141.96
142.13
142.54
142.94
143.48
142.82
142.42
142.33
142.04
141.97
10
141.93
142.13
141.93
142.13
142.79
143.00
143.15
142.74
142.39
142.55
142.04
142.12
11
141.92
142.09
141.93
142.10
143.06
143.70
142.95
142.66
142.39
142.14
142.19
142.14
12
142 08
142 10
141 91
142 23
143 60
144 26
142 91
142 63
142 37
142 24
142 28
142 19
.
.
.
.
.
.
.
.
.
.
.
.
13
142.11
142.10
141.87
142.37
144.51
144.11
142.83
142.61
142.34
142.24
142.26
142.20
14
142.12
142.27
141.84
142.38
144.00
144.28
142.74
142.65
142.36
142.23
142.17
142.17
15
142.12
142.29
141.84
142.39
143.40
143.98
142.69
142.65
142.44
142.19
142.13
142.15
16
142.15
142.34
141.86
142.34
143.05
143.69
142.56
142.65
142.52
142.18
142.13
142.13
17
142.23
142.31
141.87
142.29
142.82
143.44
142.60
142.72
142.45
142.17
142.13
142.11
18
142.33
142.22
141.94
142.28
142.65
143.43
142.68
142.67
142.40
142.17
142.14
142.07
19
142.23
142.20
141.90
142.25
142.58
143.30
144.24
142.71
142.43
142.18
142.20
142.04
20
142.19
142.27
141.89
142.23
142.50
143.29
146.93
142.65
142.45
142.19
142.23
142.26
21
142.13
142.24
141.85
142.19
142.43
143.43
146.80
142.77
142.42
142.19
142.19
142.27
22
142.08
142.12
141.84
142.13
142.40
143.29
145.99
142.78
142.38
142.17
142.15
142.18
23
142.07
142.40
141.82
142.10
142.39
143.03
146.55
142.94
142.35
142.16
142.11
142.14
24
142.16
142.37
141.80
142.05
143.02
142.93
146.43
142.94
142.32
142.17
142.09
142.14
25
142.14
142.24
141.75
142.04
143.22
142.85
145.49
142.78
142.29
142.19
142.04
142.11
26
142.11
142.19
141.75
142.03
143.14
143.09
145.15
142.69
142.29
142.19
142.04
142.05
27
142.07
142.14
141.87
142.10
142.92
143.13
144.77
142.67
142.24
142.17
142.04
142.05
28
142.07
142.17
141.85
142.46
142.83
144.72
144.23
142.61
142.19
142.09
142.04
142.04
29
142.08
142.09
142.01
142.42
142.73
145.07
143.79
142.54
142.15
142.20
142.07
30
142.11
142.09
142.11
142.36
142.65
144.89
143.43
142.45
142.15
142.22
142.08
31
142.17
142.37
142.56
143.29
142.15
142.23
142.08
----------
--------------
Mean
142.10
142.18
141.92
142.20
142.84
143.41
144.16
142.83
142.42
142.21
142.12
142.09
Max
142.33
142.40
142.17
142.46
144.51
145.07
146.93
143.54
142.98
142.55
142.28
142.27
146.93
Min
141.92
142.06
141.75
142.03
142.39
142.55
142.56
142.45
142.15
142.09
142.04
141.91
141.75
147.11
m. (MSL.) ,
141.29
m. (MSL.) ,
River Bed 139.23
m. (MSL.)
148.96
m. (MSL.) ,
149.27
m. (MSL.) ,
Drainage Area 9930 Square Kilometers
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at 18.00 Hours , on Oct 20 , 2013
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation