Basic HTML Version
320
Location : on left bank downstream from Ban Mae Phu Tambon Wiang Mok.
784
sq.km.
WATER YEAR : 2011
YOM RIVER BASIN
Huai Mae Mok at Ban Mae Phu , Lampang (Y.26)
Lat 17 - 19 - 37 N Long 99 - 27 - 42 E
Drainge Area
Amphoe
Thoen
Changwat
Lampang
Ban
Mae Phu
Staff gage
+100.380 m. (MSL.)
B.M.-H.D.
In front of gage observer's house.
Elevation
5-time daily readings at 06.00, 09.00, 12.00, 15.00 and 18.00 hours.
Arithmetic means of 5 readings
1979 to date
Rating Operation
Period of Available Gage Records
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+108.338 m. (MSL.)
Type of Gage
Bench Mark
Location BM
1979 to date
-
1979 to date
Fairly stable.
No overbank flow.
Records fair. Stage-discharge relation defined by 17 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
100.98
101.00
101.04
101.38
101.53
101.34
103.35
101.56
100.89
101.60
101.60
101.54
2
100.98
100.94
101.03
101.43
101.50
101.25
103.17
101.56
100.89
101.60
101.60
101.54
3
100.97
100.94
101.03
101.63
101.45
101.44
103.93
101.26
100.89
101.59
101.60
101.54
4
100.97
100.93
101.03
101.63
101.43
101.43
104.61
101.25
101.21
101.59
101.61
101.54
5
100.97
100.95
101.11
101.41
101.41
101.43
104.46
101.25
101.56
101.59
101.60
101.53
6
100.97
100.95
101.84
101.39
101.40
101.44
104.07
101.25
101.57
101.59
101.59
101.53
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Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
101.05
101.02
101.35
101.40
101.40
101.62
103.59
101.25
101.57
101.59
101.58
101.53
8
101.05
101.07
101.23
101.45
101.40
101.63
103.19
100.99
101.58
101.59
101.57
101.53
9
101.05
101.14
101.22
101.40
101.39
101.74
102.89
100.98
101.58
101.58
101.58
101.53
10
101.05
101.13
101.20
101.40
101.39
101.82
102.58
100.98
101.58
101.58
101.59
101.53
11
101.05
101.00
101.20
101.41
101.42
101.85
102.33
100.97
101.59
101.61
101.59
101.56
12
101.04
100.96
101.20
101.38
101.43
102.09
102.14
100.98
101.60
101.61
101.59
101.55
13
101.04
100.95
101.21
101.38
101.40
105.32
102.02
100.98
101.61
101.61
101.57
101.56
14
101.04
101.00
101.20
101.38
101.36
105.63
101.93
100.98
101.61
101.61
101.57
101.56
15
101.04
100.99
101.21
101.38
101.36
104.41
101.84
100.91
101.62
101.61
101.58
101.60
16
101.03
101.12
101.28
101.38
101.39
103.45
102.59
100.91
101.62
101.61
101.57
101.32
17
101.03
101.11
101.23
101.38
101.38
102.82
102.58
100.91
101.62
101.60
101.57
101.03
18
101.03
101.23
101.26
101.38
101.41
102.60
102.47
100.91
101.62
101.60
101.57
101.05
19
101.00
101.15
101.23
101.38
101.40
102.34
102.35
101.18
101.63
101.60
101.57
101.05
20
100.99
101.10
101.23
101.38
101.31
102.18
102.15
101.18
101.63
101.60
101.56
100.98
21
100.93
101.09
101.22
101.40
101.25
102.03
102.06
101.18
101.63
101.60
101.56
100.97
22
100.93
101.08
101.23
101.39
101.24
101.93
101.94
101.18
101.63
101.60
101.56
100.96
23
100.93
101.04
101.27
101.39
101.21
102.01
101.83
101.18
101.63
101.60
101.55
100.96
24
101.27
101.03
101.39
101.40
101.21
102.06
101.74
100.93
101.63
101.60
101.55
100.96
25
101.01
101.03
101.37
101.43
101.20
102.15
101.67
100.92
101.62
101.59
101.55
100.96
26
100.95
101.07
101.47
101.39
101.31
102.05
101.63
100.91
101.62
101.60
101.55
100.96
27
100.94
101.04
101.44
101.38
101.31
102.49
101.59
100.91
101.62
101.60
101.55
100.96
28
100.94
101.34
101.49
101.37
101.24
104.24
101.58
100.91
101.61
101.60
101.55
100.96
29
100.95
101.09
101.39
101.35
101.21
105.97
101.58
100.90
101.61
101.60
101.55
100.96
30
100.95
101.06
101.38
101.34
101.26
104.38
101.59
100.89
101.62
101.61
100.96
31
101.05
101.47
101.26
101.59
101.62
101.60
100.95
----------
--------------
Mean
101.00
101.05
101.27
101.41
101.35
102.57
102.49
101.07
101.53
101.60
101.57
101.26
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Max
101.27
101.34
101.84
101.63
101.53
105.97
104.61
101.56
101.63
101.61
101.61
101.60
105.97
Min
100.93
100.93
101.03
101.34
101.20
101.25
101.58
100.89
100.89
101.58
101.55
100.95
100.89
106.25
m. (MSL.) ,
100.38
m. (MSL.) ,
River Bed 100.42
m. (MSL)
108.22
m. (MSL.) ,
107.32
m. (MSL.) ,
Drainage Area 784 Square Kilometers
at 06.00 Hours , on Sep 29 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation