Basic HTML Version
40
Location : on left bank at the bridge of Amphoe Chum - Amphoe Chiang Kham Highway.
151
sq.km.
Drainge Area
WATER YEAR : 2011
NAM MAE ING RIVER BASIN
Nam Waen at Ban Nam Waen , Phayao (I.6)
Lat 19 - 29 - 21 N Long 100 - 16 - 33 E
Amphoe
Chiang Kham
Changwat
Phayao
Ban
Nam Waen
Staff gage
+390.745 m. (MSL.)
B.M.-H.D.
On left bank in the vicinity of gage observer's house.
Elevation
3-time daily readings at 06.00, 12.00 and 18.00 hours.
Arithmetic means of 3 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
+397.867 m. (MSL.)
Bench Mark
Type of Gage
1997 to date
-
1997 to date
Stable.
No overbank flow.
Records good. Flow effected by Nam Waen reservoir about 4 - 5 kilometers above gage site.
Stage-discharge relation defined by 39 discharge measurements made in 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
391.55
391.65
391.45
391.59
392.02
391.83
392.32
391.35
391.25
391.15
391.17
391.18
2
391.55
391.60
391.41
391.57
391.85
391.63
392.78
391.34
391.25
391.15
391.16
391.18
3
391.55
391.59
391.26
391.56
391.72
391.57
392.13
391.39
391.23
391.15
391.18
391.17
4
391.55
391.63
391.24
391.46
391.58
391.58
391.80
391.35
391.24
391.16
391.18
391.18
5
391.58
391.55
391.22
391.42
391.49
392.44
391.70
391.34
391.24
391.16
391.19
391.18
6
391.59
391.60
391.51
391.34
391.49
392.09
391.62
391.35
391.23
391.15
391.18
391.20
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Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
391.60
391.50
391.71
391.33
391.65
392.26
391.54
391.33
391.21
391.15
391.19
391.21
8
391.60
391.42
391.52
391.25
391.62
391.99
391.45
391.32
391.21
391.15
391.19
391.20
9
391.61
391.35
391.44
391.24
391.52
391.84
391.45
391.50
391.18
391.16
391.18
391.22
10
391.61
391.80
391.46
391.19
392.00
391.92
391.49
391.46
391.18
391.19
391.18
391.18
11
391.60
391.69
391.23
391.71
393.63
391.79
391.46
391.39
391.17
391.19
391.18
391.18
12
391.59
391.60
391.21
391.52
393.11
391.67
391.45
391.31
391.17
391.22
391.18
391.18
13
391.59
391.36
391.16
391.57
392.25
391.71
391.44
391.35
391.17
391.25
391.20
391.17
14
391.59
391.23
391.15
391.73
392.12
391.76
391.43
391.32
391.16
391.25
391.21
391.18
15
391.59
391.62
391.16
392.10
391.83
391.91
391.48
391.31
391.15
391.25
391.20
391.18
16
391.58
391.49
391.20
393.68
391.67
391.80
391.75
391.29
391.20
391.25
391.21
391.17
17
391.57
391.51
391.19
392.41
391.68
391.63
391.84
391.28
391.25
391.23
391.21
391.17
18
391.54
392.00
391.18
391.90
391.59
391.55
391.63
391.27
391.25
391.22
391.22
391.18
19
391.50
392.64
391.17
391.60
391.98
391.57
391.54
391.25
391.24
391.23
391.20
391.18
20
391.40
392.01
391.16
391.93
391.96
391.78
391.46
391.25
391.24
391.23
391.21
391.17
21
391.42
391.95
391.17
391.70
392.45
392.22
391.46
391.25
391.23
391.20
391.21
391.17
22
391.43
391.56
391.14
391.59
392.47
392.17
391.41
391.25
391.21
391.19
391.21
391.17
23
391.59
391.51
391.16
391.50
392.32
391.96
391.41
391.25
391.19
391.20
391.20
391.20
24
391.60
391.36
391.14
392.63
392.07
391.90
391.35
391.24
391.18
391.19
391.20
391.20
25
391.61
391.46
391.24
392.18
392.03
391.70
391.35
391.25
391.19
391.20
391.19
391.21
26
391.58
391.29
393.78
391.82
392.18
391.59
391.37
391.25
391.16
391.20
391.19
391.20
27
391.55
391.27
393.79
391.64
393.97
391.55
391.35
391.25
391.11
391.19
391.19
391.19
28
391.55
391.30
392.74
391.57
392.92
391.53
391.35
391.26
391.10
391.19
391.18
391.19
29
391.55
391.73
391.94
391.55
392.29
391.49
391.32
391.26
391.13
391.19
391.18
391.18
30
391.55
391.54
391.68
391.57
391.92
391.45
391.35
391.26
391.15
391.19
391.18
31
391.50
391.57
391.85
391.35
391.15
391.19
391.18
----------
--------------
Mean
391.56
391.59
391.53
391.72
392.10
391.80
391.58
391.31
391.19
391.19
391.19
391.18
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Max
391.61
392.64
393.79
393.68
393.97
392.44
392.78
391.50
391.25
391.25
391.22
391.22
393.97
Min
391.40
391.23
391.14
391.19
391.49
391.45
391.32
391.24
391.10
391.15
391.16
391.17
391.10
395.08
m. (MSL.) ,
390.74
m. (MSL.) ,
River Bed 389.93
m. (MSL)
398.52
m. (MSL.) ,
398.55
m. (MSL.) ,
Drainage Area 151 Square Kilometers
at 13.00 Hours , on Aug 27 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation