Basic HTML Version
292
Location : on left bank at Ban Sop Tam.
371
sq.km.
WATER YEAR : 2014
WANG RIVER BASIN
Nam Mae Tam at Ban Sop Tam , Lampang (W.18A)
Lat 18 - 02 - 38 N Long 99 - 14 - 14 E
Amphoe
Ko Kha
Changwat
Lampang
Ban
Sop Tam
Drainge Area
Water - stage recorder.
+204.920 m. (MSL.)
B.M.-H.D.
About 21 meters from the top staff gage.
Elevation
Recording
Arithmetic mean of 24 readings
2011 to date
+213.703 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
2011 to date
-
2011 to date
Fairly stable because of backwater effect.
No overbank flow.
Records fair.Stage-discharge relation defined by 31 discharge measurements made in 2014.
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
204.72
204.67
205.05
204.77
205.00
206.45
205.25
205.34
204.99
204.95
204.92
204.65
2
204.82
204.88
205.03
204.77
205.01
206.67
205.18
205.30
205.00
204.95
204.92
204.64
3
204.80
205.05
204.99
204.77
205.00
207.84
205.14
205.23
205.01
204.95
204.92
204.64
4
204.79
205.19
204.83
204.77
205.01
207.73
205.13
205.21
205.01
204.94
204.89
204.62
5
204.80
205.35
204.81
204.77
205.02
207.37
205.09
205.26
205.00
204.93
204.88
204.62
6
204.80
205.70
204.80
204.76
205.11
206.95
205.16
205.58
205.00
204.93
204.87
204.62
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Gage Height in Meter (MSL.) Water Year April 1, 2014 to March 31, 2015
7
204.78
206.00
204.81
204.76
205.39
206.55
205.33
205.88
204.99
204.93
204.86
204.61
8
204.74
205.66
204.80
204.79
205.29
206.56
205.32
206.02
205.00
204.91
204.86
204.60
9
204.73
205.08
204.80
204.93
205.19
206.18
205.29
205.79
204.99
204.93
204.86
204.60
10
204.72
204.81
204.81
204.88
205.11
206.04
205.17
205.70
204.99
205.12
204.84
204.59
11
204.71
204.79
204.78
204.83
205.09
205.72
205.10
205.58
204.99
205.34
204.83
204.65
12
204.70
204.79
204.81
204.85
205.06
205.30
205.13
205.34
204.98
205.15
204.81
204.64
13
204.69
204.78
204.80
204.91
205.02
205.20
205.19
205.39
204.99
205.09
204.81
204.64
14
204.68
204.79
204.82
204.90
205.02
205.07
205.07
205.22
205.03
205.08
204.81
204.62
15
204 67
204.81
204.83
204.89
204.99
205.11
205.08
205.20
204.97
205.07
204.80
204.62
.
16
204.66
204.80
204.82
204.87
205.02
205.29
205.07
205.19
204.96
205.06
204.78
204.62
17
204.65
204.78
204.82
205.06
205.02
205.36
205.07
205.16
204.94
205.03
204.76
204.61
18
204.65
204.80
204.83
204.99
205.01
205.25
205.07
205.15
204.93
205.02
204.73
204.60
19
204.65
204.83
204.83
205.01
204.99
205.21
205.06
205.13
204.92
205.01
204.72
204.60
20
204.65
204.81
204.82
205.02
205.07
205.19
205.05
205.11
204.91
205.00
204.70
204.59
21
204.64
204.75
204.82
205.00
205.44
205.16
205.06
205.11
204.91
205.01
204.69
204.53
22
204.64
204.74
204.82
204.99
205.42
205.11
205.48
205.09
204.92
205.00
204.71
204.52
23
204.62
204.73
204.82
205.04
205.28
205.09
206.34
205.09
204.95
204.99
204.71
204.51
24
204.62
204.72
204.81
205.04
205.17
205.10
205.84
205.08
204.93
204.98
204.70
204.76
25
204.62
204.73
204.81
205.02
205.11
205.20
205.70
205.08
204.93
204.98
204.67
205.38
26
204.62
204.72
204.80
205.02
205.12
205.58
205.52
205.07
204.86
204.98
204.67
205.11
27
204.62
204.72
204.80
205.08
205.13
205.61
205.40
205.02
204.86
204.96
204.66
205.09
28
204.62
204.71
204.79
205.39
205.38
205.36
205.35
205.01
204.85
204.96
204.65
205.02
29
204.62
204.64
204.78
205.21
205.77
205.29
205.28
205.00
204.86
204.94
205.01
30
204.62
204.73
204.78
205.02
205.65
205.40
205.27
204.99
204.87
204.94
204.97
31
204.76
205.01
206.17
205.30
204.87
204.93
204.93
----------
--------------
Mean
204.69
204.91
204.83
204.94
205.20
205.80
205.27
205.28
204.95
205.00
204.79
204.72
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Max
204.82
206.00
205.05
205.39
206.17
207.84
206.34
206.02
205.03
205.34
204.92
205.38
207.84
Min
204.62
204.64
204.78
204.76
204.99
205.07
205.05
204.99
204.85
204.91
204.65
204.51
204.51
208.02
m. (MSL.) ,
204.92
m. (MSL.) ,
River Bed 204.64
m. (MSL.)
213.03
m. (MSL.) ,
213.08
m. (MSL.) ,
Drainage Area 371 Square Kilometers
at 06.00 Hours , on Sep 3 , 2014
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation