Basic HTML Version
274
Location : on left bank at Ban Don Mun
2,798
sq.km.
WATER YEAR : 2011
WANG RIVER BASIN
Wang River at Ban Don Mun , Lampang (W.10A)
Lat 18 - 31 - 16 N Long 99 - 37 - 52 E
Amphoe
Mueang
Changwat
Lampang
Ban
Don Mun
Drainge Area
Water - stage recorder
+259.000 m. (MSL.)
B.M.-H.D.
On left bank at the bridge.
Elevation
Recording
Arithmetic means of 24 readings
1984 to date
+270.290 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
1984 to date
-
1984 to date
Fairly stable.
No overbank flow.
Records good.Stage-discharge relation defined by 47 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
259.76
259.59
259.88
260.18
261.79
261.61
261.60
259.76
259.55
259.20
259.79
259.38
2
259.76
259.63
259.89
260.18
262.81
261.52
261.32
259.50
259.55
259.08
259.79
259.43
3
259.76
259.85
259.90
260.17
262.84
261.46
260.19
259.23
259.55
258.97
259.79
259.43
4
259.74
260.01
259.90
260.10
262.68
261.36
259.94
259.12
259.55
258.97
259.78
259.43
5
259.74
260.02
259.90
259.73
262.17
260.19
261.09
259.11
259.55
258.97
259.53
259.43
6
259.73
260.02
259.85
259.44
261.92
259.91
259.01
259.13
259.54
258.93
258.93
259.43
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
259.73
260.02
259.83
259.38
261.77
260.28
258.96
259.51
259.53
258.89
258.98
259.43
8
259.73
259.69
259.83
259.08
260.88
261.08
259.03
259.78
259.52
258.89
259.09
259.42
9
259.72
259.40
259.83
259.07
260.83
261.24
259.07
259.40
259.52
258.89
259.09
259.41
10
259.72
260.24
259.82
259.07
260.84
260.95
259.26
259.39
259.52
259.24
259.11
259.23
11
259.60
261.67
259.82
259.07
260.92
260.50
259.71
259.42
259.52
259.25
259.25
259.05
12
259.26
261.92
259.81
259.09
261.66
260.52
259.55
259.48
259.52
259.24
259.30
259.07
13
259.25
261.79
259.78
259.07
261.89
260.84
259.43
259.51
259.41
259.24
259.33
259.11
14
259.25
261.38
259.41
259.10
261.89
261.12
259.53
259.64
259.23
259.23
259.83
259.10
15
259.25
260.02
259.32
259.34
261.84
261.54
259.53
259.64
259.08
259.23
259.98
259.10
16
259.25
259.60
259.32
259.58
261.61
261.53
259.53
259.59
258.98
259.22
259.97
259.11
17
259.25
259.59
259.32
260.37
261.03
261.48
259.53
259.59
258.96
259.22
259.95
259.12
18
259.25
259.54
259.32
260.36
260.65
259.81
259.54
259.75
258.96
259.22
259.84
259.27
19
259.56
260.09
259.32
260.16
261.11
259.80
259.56
259.75
258.96
259.06
259.46
259.29
20
260.14
260.44
259.32
259.65
261.61
260.01
259.51
259.66
259.07
258.92
259.34
259.27
21
260.12
260.44
259.82
259.67
261.52
260.82
259.47
259.54
259.26
259.07
259.25
259.20
22
260.07
260.44
259.81
259.53
261.33
260.95
259.47
259.49
259.31
258.98
259.17
259.20
23
260.00
260.43
259.78
259.31
259.79
260.64
259.47
259.36
259.31
258.98
259.07
259.20
24
260.00
260.42
259.41
259.31
259.95
260.66
259.47
259.28
259.31
258.97
259.07
259.20
25
259.35
260.41
259.32
259.58
259.84
261.54
259.45
259.27
259.29
258.97
259.07
259.21
26
259.30
260.39
259.32
260.28
260.25
261.71
259.40
259.26
259.23
259.08
259.07
259.21
27
259.55
260.32
259.81
260.01
260.97
261.92
259.34
259.26
259.21
259.19
259.12
259.21
28
259.55
260.13
260.15
259.50
261.11
261.88
259.25
259.33
259.21
259.19
259.18
259.10
29
259.55
260.13
260.16
259.46
261.16
261.96
259.25
259.56
259.21
259.19
259.18
258.98
30
259.55
259.99
260.18
259.46
261.31
261.65
259.62
259.56
259.21
259.53
258.99
31
259.87
259.82
261.72
259.90
259.20
259.91
258.99
----------
--------------
Mean
259.62
260.24
259.70
259.62
261.34
261.02
259.64
259.46
259.32
259.13
259.39
259.23
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Max
260.14
261.92
260.18
260.37
262.84
261.96
261.60
259.78
259.55
259.91
259.98
259.43
262.84
Min
259.25
259.40
259.32
259.07
259.79
259.80
258.96
259.11
258.96
258.89
258.93
258.98
258.89
262.92
m. (MSL.) ,
259.00
m. (MSL.) ,
River Bed 257.55
m. (MSL)
270.17
m. (MSL.) ,
269.86
m. (MSL.) ,
Drainage Area 2798 Square Kilometers
at 09.00 Hours , on Aug 2 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation