Basic HTML Version
272
Location : on left bank at Ban Sop Prap.
8,150
sq.km.
Drainge Area
WATER YEAR : 2011
WANG RIVER BASIN
Wang River at Ban Sop Prap , Lampang (W.6A)
Lat 17 - 52 - 41 N Long 99 - 19 - 52 E
Amphoe
Sop Prap
Changwat
Lampang
Ban
Sop Prap
Water - stage recorder
+184.050 m. (MSL.)
B.M.-H.D.
On left bank near the gage site.
Elevation
Recording
Arithmetic means of 24 readings
2011 to date
Rating Operation
Period of Available Gage Records
Location BM
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+187.165 m. (MSL.)
Bench Mark
Type of Gage
2011 to date
-
2011 to date
Fairly stable.
Overbank flow starts at elevation +189.810 m.(MSL.), records are channel flow only.
Records fair. Stage-discharge relation defined by 39 discharge measurements made in 2011.
Remark
beginning on 1
st
May 2011
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 *******
1.10
185.73
185.52
186.01
186.96
187.47
186.53
185.22
184.83
185.07
184.79
2 *******
1.10
185.71
185.39
188.43
187.01
188.32
185.87
185.21
184.83
185.26
184.81
3 *******
1.09
185.68
185.33
189.79
187.18
190.06
185.62
185.21
184.83
185.29
184.87
4 *******
1.30
185.64
185.80
190.79
187.01
189.76
185.53
185.20
184.83
185.24
184.96
5 *******
1.27
185.63
186.11
190.14
186.79
188.92
185.46
185.19
184.87
185.10
184.98
6 *******
1.29
185.69
185.84
188.81
186.58
188.42
185.40
185.18
184.95
184.99
184.99
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7 *******
1.30
185.70
185.45
188.31
186.65
188.22
185.36
185.18
184.95
184.94
185.02
8 *******
1.30
185.61
185.17
188.04
187.01
188.13
185.35
185.18
184.95
184.91
185.03
9 *******
1.46
185.56
185.16
187.84
187.10
188.07
185.37
185.18
184.95
184.88
185.04
10 *******
3.63
185.52
185.11
187.59
187.21
188.01
185.47
185.18
184.95
184.85
185.06
11 *******
4.62
185.51
185.26
187.45
187.83
187.78
185.43
185.18
184.95
184.82
185.10
12 *******
3.73
185.49
185.53
187.84
187.73
187.67
185.35
185.18
184.94
184.81
185.03
13 *******
2.96
185.46
185.44
188.17
187.85
187.60
185.37
185.18
184.92
184.81
185.05
14 *******
2.57
185.37
185.10
187.96
187.99
187.52
185.37
185.16
184.91
184.81
185.18
15 *******
2.61
185.29
184.89
187.62
187.98
187.34
185.35
185.11
184.90
185.03
185.12
16 *******
2.36
185.24
184.99
187.40
188.08
187.32
185.33
185.05
184.89
185.25
185.07
17 *******
1.94
185.27
185.73
187.35
187.74
187.53
185.37
185.00
184.88
185.27
185.01
18 *******
2.52
185.42
186.15
187.09
187.35
188.00
185.36
184.95
184.87
185.26
184.95
19 *******
2.68
185.37
185.94
187.45
187.11
188.10
185.34
184.91
184.86
185.23
185.19
20 *******
2.43
185.34
185.87
187.34
187.10
187.79
185.33
184.90
184.85
185.10
185.38
21 *******
2.30
185.31
185.67
187.57
186.89
187.55
185.31
184.90
184.84
185.06
185.33
22 *******
2.04
185.29
185.52
187.82
187.00
187.37
185.30
184.89
184.84
185.01
185.23
23 *******
1.88
185.26
185.46
187.61
187.10
187.31
185.30
184.89
184.83
184.97
185.11
24 *******
1.77
185.26
185.37
187.03
186.83
187.23
185.29
184.88
184.81
184.92
185.06
25 *******
1.71
185.30
185.33
186.59
187.32
187.13
185.27
184.87
184.81
184.85
185.04
26 *******
1.72
185.61
185.50
186.74
187.15
187.10
185.26
184.86
184.80
184.81
185.04
27 *******
1.73
185.92
185.85
187.65
187.41
187.06
185.26
184.86
184.79
184.78
185.09
28 *******
1.71
185.92
186.01
187.46
187.67
187.00
185.25
184.85
184.79
184.75
185.17
29 *******
1.70
185.79
185.81
187.35
188.29
186.93
185.24
184.85
184.79
184.77
185.26
30 *******
1.70
185.70
185.57
186.94
188.17
186.84
185.24
184.84
184.78
185.27
31
1.70
185.53
187.12
186.84
184.83
184.78
185.17
----------
--------------
Mean
*******
2.04
185.52
185.53
187.78
187.34
187.75
185.41
185.03
184.86
184.99
185.08
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Max
*******
4.62
185.92
186.15
190.79
188.29
190.06
186.53
185.22
184.95
185.29
185.38
190.79
Min
*******
1.09
185.24
184.89
186.01
186.58
186.84
185.24
184.83
184.78
184.75
184.79 *******
190.87
m. (MSL.) ,
184.05
m. (MSL.) ,
River Bed 180.86
m. (MSL)
189.86
m. (MSL.) ,
189.80
m. (MSL.) ,
Drainage Area 8150 Square Kilometers
at 14.00 Hours , on Aug 4 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation