Basic HTML Version
270
Location : on right at the bridge of Lampang - Wang Nua Road.
726
sq.km.
Drainge Area
WATER YEAR : 2012
WANG RIVER BASIN
Nam Mae Soi at Ban Nong Nao , Lampang (W.17)
Lat 18 - 43 - 13 N Long 99 - 34 - 04 E
Amphoe
Chae Hom
Changwat
Lampang
Ban
Nong Nao
Water - stage recorder
+292.000 m. (MSL.)
B.M.-H.D.
About 21 meters from the top staff gage.
Elevation
Recording
Arithmetic mean of 24 readings
1980 to date
Rating Operation
Period of Available Gage Records
Location BM
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+296.276 m. (MSL.)
Bench Mark
Type of Gage
1980 to date
-
1980 to date
Fairly stable because of backwater effect.
No overbank flow.
Records fair.The local weir situated about 500 meters downstream from the gage site.
Stage-discharge relation defined by 47 discharge measurements made in 2012.
Period of Rating
Rated by Flot
Rated by Current Meter
Stability of Channel Regimes
Overbank Flow Conditions
General Description
Date
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Annual
----------
-----------------
1
291.53
291.52
291.74
291.63
291.72
291.89
291.98
291.89
291.83
291.68
291.72
291.59
2
291.58
291.55
291.72
291.61
291.72
292.09
292.12
291.90
291.84
291.68
291.68
291.59
3
291.57
291.56
291.67
291.62
291.75
292.52
292.16
291.89
291.84
291.69
291.69
291.60
4
291.60
291.50
291.64
291.61
291.68
292.74
292.17
291.96
291.85
291.67
291.67
291.64
5
291.57
291.57
291.63
291.72
291.71
293.01
292.12
292.04
291.81
291.67
291.64
291.68
6
291.53
291.67
291.71
291.71
291.66
292.45
292.16
292.01
291.82
291.67
291.65
291.67
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (MSL.) Water Year April 1, 2012 to March 31, 2013
7
291.55
291.97
291.79
291.88
291.65
292.54
292.36
291.95
291.77
291.67
291.63
291.65
8
291.56
291.92
291.79
291.77
291.73
293.62
292.13
291.97
291.75
291.67
291.60
291.63
9
291.59
291.79
291.87
291.82
291.95
292.63
292.04
291.87
291.75
291.67
291.59
291.64
10
291.52
291.76
291.81
291.90
291.97
292.77
292.00
291.86
291.76
291.67
291.60
291.64
11
291.55
291.75
291.76
291.98
291.96
292.59
291.96
291.85
291.76
291.67
291.60
291.62
12
291.57
291.72
291.72
291.92
291.87
292.47
291.95
291.84
291.79
291.68
291.60
291.60
13
291.50
291.64
291.70
291.94
291.83
292.35
291.97
291.85
291.75
291.68
291.60
291.58
14
291.52
291.66
291.69
291.92
291.76
292.33
292.04
291.88
291.77
291.67
291.61
291.58
15
291.51
291.67
291.61
291.96
291.76
293.30
292.01
291.86
291.74
291.66
291.60
291.58
16
291.52
291.67
291.61
292.03
291.70
292.74
291.97
291.87
291.77
291.66
291.62
291.58
17
291.53
291.68
291.60
291.91
291.73
292.56
291.93
291.84
291.72
291.67
291.60
291.58
18
291.49
291.64
291.63
291.89
291.68
292.24
291.92
291.83
291.72
291.67
291.63
291.55
19
291.46
291.68
291.58
291.91
291.68
292.22
291.91
291.85
291.70
291.68
291.69
291.56
20
291.49
291.64
291.59
291.91
291.69
292.12
291.95
291.83
291.71
291.70
291.66
291.55
21
291.47
291.62
291.60
291.91
291.86
292.17
291.91
291.86
291.68
291.67
291.66
291.55
22
291.50
291.65
291.58
291.97
291.90
292.30
291.98
291.89
291.67
291.66
291.68
291.54
23
291.49
291.62
291.58
291.96
291.89
292.30
291.92
291.87
291.69
291.66
291.68
291.53
24
291.52
291.66
291.58
292.06
291.84
292.11
291.94
291.86
291.70
291.65
291.67
291.54
25
291.48
291.72
291.57
292.17
291.89
292.11
291.91
291.81
291.71
291.65
291.65
291.54
26
291.48
291.71
291.57
292.14
292.45
292.13
291.92
291.85
291.65
291.65
291.64
291.53
27
291.49
291.76
291.57
292.04
291.74
292.17
291.90
292.03
291.66
291.64
291.61
291.55
28
291.50
291.81
291.60
292.06
291.76
292.05
291.89
291.98
291.67
291.63
291.60
291.55
29
291.49
291.73
291.60
292.10
291.90
292.08
291.87
291.91
291.68
291.65
291.55
30
291.50
291.76
291.61
292.00
291.93
292.06
291.89
291.90
291.67
291.65
291.56
31
291.77
291.95
291.96
291.88
291.67
291.70
291.55
----------
--------------
Mean
291.52
291.69
291.66
291.90
291.82
292.42
292.00
291.89
291.74
291.67
291.64
291.58
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Max
291.60
291.97
291.87
292.17
292.45
293.62
292.36
292.04
291.85
291.70
291.72
291.68
293.62
Min
291.46
291.50
291.57
291.61
291.65
291.89
291.87
291.81
291.65
291.63
291.59
291.53
291.46
293.74
m. (MSL.) ,
292.00
m. (MSL.) ,
River Bed 291.11
m. (MSL.)
296.45
m. (MSL.) ,
296.49
m. (MSL.) ,
Drainage Area 726 Square Kilometers
at 21.00 Hours , on Sep 8 , 2012
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation