Basic HTML Version
276
Location : on left bank at the bridge of Lampang - Hang Chat Highway.
941
sq.km.
WATER YEAR : 2012
WANG RIVER BASIN
Nam Mae Tui at Ban Tha Lo , Lampang (W.20)
Lat 18 - 18 - 34 N Long 99 - 27 - 40 E
Amphoe
Mueang
Changwat
Lampang
Ban
Tha Lo
Drainge Area
Water - stage recorder
+230.420 m. (MSL.)
B.M.-H.D.
On left bank at the approach of the bridge.
Elevation
Recording
Arithmetic mean of 24 readings.
1993 to date
+237.644 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
1993 to date
-
1993 to date
Fairly stable.
No overbank flow.
Records fair.Flow effected by the local weir about 200 meters downstream from the gage site.
Stage-discharge relation defined by 47 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
230.74
230.15
230.67
230.44
230.86
230.34
230.41
230.87
230.77
230.03
230.69
229.83
2
230.69
230.64
230.65
230.33
230.85
230.92
230.43
230.84
230.74
230.39
230.73
229.82
3
230.64
230.67
230.63
230.04
230.84
230.93
230.37
230.83
230.83
230.43
230.74
229.81
4
230.62
230.65
230.59
229.95
230.84
232.20
230.96
231.23
230.80
230.26
230.75
229.84
5
230.57
230.66
230.49
230.00
230.85
231.44
230.81
231.10
230.74
230.17
230.73
229.96
6
230.49
230.98
230.37
230.24
230.85
230.89
231.02
230.95
230.72
230.23
230.68
230.35
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Gage Height in Meter (MSL.) Water Year April 1, 2012 to March 31, 2013
7
230.33
231.72
230.14
230.66
230.83
231.26
231.06
230.85
230.69
230.36
230.63
230.67
8
230.17
231.29
230.07
230.68
230.83
232.41
230.71
230.82
230.68
230.66
230.53
230.71
9
230.06
231.20
229.99
230.68
230.86
231.81
230.57
230.80
230.67
230.69
230.31
230.74
10
229.97
230.98
230.03
230.78
230.93
231.48
230.48
230.77
230.66
230.68
230.12
230.75
11
229.96
230.88
230.13
230.71
230.83
231.51
230.45
230.74
230.66
230.70
229.88
230.74
12
229.97
230.78
230.17
230.66
230.79
230.82
230.46
230.73
230.64
230.74
229.80
230.72
13
230.04
230.74
230.20
230.66
230.79
230.68
230.48
230.76
230.63
230.74
229.79
230.70
14
230.16
230.70
230.28
230.65
230.75
231.59
230.48
230.88
230.61
230.70
229.79
230.68
15
230.30
230.68
230.33
230.66
230.72
232.60
230.47
230.78
230.56
230.72
229.82
230.67
16
230.59
230.66
230.10
230.67
230.71
232.24
230.27
230.75
230.52
230.76
229.85
230.63
17
230.67
230.71
229.99
230.67
230.70
231.23
230.28
230.73
230.43
230.75
229.88
230.59
18
230.68
230.94
230.00
230.66
230.69
230.88
230.73
230.71
230.34
230.75
229.89
230.48
19
230.68
230.88
230.00
230.68
230.68
230.61
230.75
230.70
230.35
230.77
230.02
230.31
20
230.66
230.82
230.03
230.73
230.70
230.55
230.73
230.69
230.31
230.76
230.34
230.16
21
230.61
230.72
230.02
230.71
231.36
230.70
230.73
230.69
230.13
230.74
230.68
229.94
22
230.48
230.72
230.01
230.68
231.24
230.50
230.73
230.68
229.91
230.70
230.70
229.82
23
230.24
230.74
230.04
230.68
230.83
230.46
230.75
230.68
229.85
230.63
230.66
229.80
24
230.02
230.76
230.04
230.73
230.68
230.49
230.75
230.67
229.80
230.55
230.62
229.79
25
229.83
230.77
230.06
230.92
230.92
230.54
230.73
230.67
229.79
230.53
230.51
229.80
26
229.82
230.76
230.07
230.89
230.92
230.46
230.74
230.66
229.78
230.33
230.33
229.82
27
229.86
230.71
230.15
230.84
231.86
230.47
230.73
230.67
229.79
230.08
230.14
229.85
28
229.91
230.84
230.34
230.84
231.06
230.59
230.74
230.68
229.82
229.81
229.96
229.90
29
229.93
230.77
230.51
230.85
230.83
230.52
230.73
230.92
229.84
229.79
230.00
30
229.96
230.76
230.54
230.82
230.56
230.47
230.73
230.85
229.87
229.80
230.43
31
230.72
230.78
230.47
230.76
229.92
230.00
230.64
----------
--------------
Mean
230.29
230.81
230.22
230.62
230.86
231.05
230.65
230.79
230.35
230.46
230.31
230.26
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Max
230.74
231.72
230.67
230.92
231.86
232.60
231.06
231.23
230.83
230.77
230.75
230.75
232.60
Min
229.82
230.15
229.99
229.95
230.47
230.34
230.27
230.66
229.78
229.79
229.79
229.79
229.78
232.77
m. (MSL.) ,
230.42
m. (MSL.) ,
River Bed 229.68
m. (MSL.)
238.02
m. (MSL.) ,
238.07
m. (MSL.) ,
Drainage Area 941 Square Kilometers
at 18.00 Hours , on Sep 15 , 2012
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation