Basic HTML Version
278
Location : on left bank at the bridge on highway.
3,367
sq.km.
WATER YEAR : 2012
WANG RIVER BASIN
Wang River at Ban Tha Dua , Lampang (W.21)
Lat 18 - 20 - 18 N Long 99 - 32 - 27 E
Drainge Area
Amphoe
Mueang
Changwat
Lampang
Ban
Tha Dua
Water - stage recorder
+232.000 m. (MSL.)
B.M.-H.D.
On left bank about 5 meters from the top staff gage.
Elevation
Recording
Arithmetic mean of 24 readings.
1999 to date
Rating Operation
Period of Available Gage Records
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+236.495 m. (MSL.)
Type of Gage
Bench Mark
Location BM
1999 to date
-
1999 to date
Fairly stable because of backwater effect.
No overbank flow.
Records fair.Stage-discharge relation defined by 49 discharge measurements made in 2012.
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
231.80
231.89
232.37
232.01
232.16
232.05
232.42
232.08
231.69
231.78
231.81
231.60
2
231.69
231.91
232.34
231.90
232.11
232.09
233.22
231.99
231.65
231.74
231.82
231.63
3
231.64
231.87
232.33
231.94
232.12
232.71
233.47
231.92
231.76
231.68
231.82
231.68
4
231.77
231.89
232.32
231.93
232.16
233.78
233.53
232.16
231.68
231.62
231.80
231.75
5
232.18
232.15
232.33
232.17
232.14
234.06
234.90
232.08
231.62
231.62
231.79
231.85
6
231.72
232.29
232.33
232.14
232.15
233.77
234.79
231.96
231.62
231.70
231.72
231.84
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Gage Height in Meter (MSL.) Water Year April 1, 2012 to March 31, 2013
7
231.60
233.07
232.32
232.11
232.12
233.91
233.98
231.84
231.61
231.83
231.69
231.83
8
231.72
232.72
232.33
232.11
232.40
235.71
232.94
231.80
231.61
231.76
231.65
231.83
9
231.83
232.51
232.38
232.08
232.43
235.41
232.47
231.78
231.61
231.78
231.63
231.85
10
231.86
232.06
232.37
232.07
232.26
235.37
232.40
231.77
231.61
231.81
231.62
231.85
11
232.54
232.06
232.64
232.06
232.42
235.10
232.22
231.86
231.61
231.78
231.60
231.84
12
232.30
232.12
232.71
232.00
232.39
234.75
232.20
231.80
231.59
231.80
231.59
231.86
13
232.25
232.15
232.66
232.03
232.20
233.79
232.16
231.68
231.60
231.81
231.59
231.84
14
231.98
232.14
232.64
232.09
232.16
233.47
232.11
231.66
231.60
231.82
231.60
231.74
15
232.00
232.15
232.61
232.11
232.07
235.34
232.08
231.65
231.61
231.82
231.65
231.71
16
231.96
232.28
232.53
232.13
232.03
235.18
232.09
231.67
231.60
231.87
231.69
231.71
17
231.97
232.35
232.51
232.00
231.99
234.33
232.07
231.68
231.60
231.89
231.75
231.69
18
231.99
232.35
232.49
231.88
231.84
232.91
232.11
231.68
231.59
231.83
231.77
231.66
19
231.92
232.39
232.23
231.90
231.78
232.49
232.18
231.65
231.59
231.80
231.80
231.62
20
231.77
232.35
232.20
231.96
231.83
232.29
232.12
231.63
231.58
231.79
231.80
231.59
21
231.77
232.35
232.10
231.94
232.40
232.28
232.03
231.62
231.58
231.80
231.82
231.57
22
231.84
232.35
231.82
231.91
232.39
232.28
231.99
231.67
231.59
231.71
231.80
231.58
23
231.74
232.35
231.88
231.85
232.20
232.17
232.03
232.24
231.58
231.64
231.78
231.62
24
231.63
232.35
231.93
232.18
232.16
232.16
232.05
232.31
231.58
231.62
231.77
231.67
25
231.62
232.48
231.93
232.41
232.11
232.16
232.05
232.32
231.60
231.62
231.72
231.72
26
231.63
232.39
231.96
232.28
232.14
232.17
232.04
232.28
231.62
231.66
231.65
231.80
27
231.68
232.36
232.18
232.22
232.24
232.14
231.88
232.19
231.63
231.64
231.63
231.87
28
231.73
232.36
232.54
232.29
232.20
232.15
231.78
232.29
231.66
231.64
231.61
231.90
29
231.80
232.46
232.10
232.31
232.48
232.32
231.79
232.23
231.71
231.61
231.85
30
231.81
232.44
232.08
232.29
232.29
232.08
231.83
231.85
231.74
231.62
231.82
31
232.38
232.07
232.06
231.93
231.77
231.76
231.80
----------
--------------
Mean
231.86
232.29
232.31
232.08
232.18
233.35
232.48
231.91
231.63
231.74
231.71
231.75
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Max
232.54
233.07
232.71
232.41
232.48
235.71
234.90
232.32
231.77
231.89
231.82
231.90
235.71
Min
231.60
231.87
231.82
231.85
231.78
232.05
231.78
231.62
231.58
231.61
231.59
231.57
231.57
235.88
m. (MSL.) ,
232.00
m. (MSL.) ,
River Bed 230.44
m. (MSL.)
239.84
m. (MSL.) ,
240.72
m. (MSL.) ,
Drainage Area 3367 Square Kilometers
at 11.00 Hours , on Sep 8 , 2012
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation