Basic HTML Version
52
Location : on right bank at Ban Nong Phum.
2,614
sq.km.
Drainge Area
WATER YEAR : 2011
NAM MAE KOK RIVER BASIN
Nam Mae Lao at Ban Nong Phum , Chiang Rai (G.10)
Lat 19 - 39 - 21 N Long 99 - 32 - 50 E
Amphoe
Mae Suai
Changwat
Chiang Rai
Ban
Nong Phum
Staff gage
+433.473 m. (MSL.)
B.M.-H.D.
On right bank at the abutment of the bridge.
Elevation
3-time daily readings at 06.00, 12.00 and 18.00 hours.
Arithmetic means of 3 readings
2003 to date
Rating Operation
Period of Available Gage Records
Location BM
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+439.133 m. (MSL.)
Bench Mark
Type of Gage
2003 to date
-
2003 to date
Fairly stable.
No overbank flow.
Records fair. Stage-discharge relation defined by 40 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
433.83
434.46
434.21
434.39
435.29
435.48
435.83
434.65
434.20
433.92
433.80
433.69
2
433.83
434.38
434.15
434.28
435.74
435.50
435.62
434.59
434.19
433.91
433.82
433.69
3
433.85
434.86
434.07
434.40
435.75
435.30
435.35
434.56
434.17
433.91
433.85
433.68
4
433.83
434.77
434.07
434.41
435.51
435.12
435.31
434.53
434.18
433.91
433.84
433.67
5
433.81
434.80
434.06
434.40
434.98
435.17
435.24
434.53
434.17
433.89
433.82
433.67
6
433.80
434.87
434.40
434.33
434.74
435.30
435.18
434.47
434.15
433.89
433.91
433.67
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Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
433.82
434.67
434.38
434.18
434.72
435.24
435.10
434.48
434.15
433.88
433.90
433.67
8
433.85
434.37
434.31
434.10
434.68
435.23
435.09
434.45
434.13
433.87
433.93
433.67
9
433.85
434.35
434.18
434.06
434.70
435.19
435.10
434.48
434.12
433.86
433.88
433.67
10
433.83
434.42
434.08
434.07
434.79
435.13
435.08
434.46
434.11
433.85
433.76
433.67
11
433.84
434.77
434.05
434.18
435.19
435.11
434.97
434.41
434.09
433.82
433.74
433.67
12
433.90
434.49
434.01
434.32
435.39
435.00
434.92
434.44
434.09
433.79
433.74
433.68
13
434.17
434.37
433.98
434.29
436.01
435.49
434.87
434.40
434.09
433.81
433.73
433.82
14
434.03
434.22
434.01
434.30
435.57
436.26
434.81
434.36
434.08
433.83
433.73
433.90
15
434.12
434.16
433.95
434.99
435.37
436.15
434.78
434.35
434.07
433.99
433.72
433.95
16
433.99
434.12
433.93
435.21
435.22
435.69
434.78
434.33
434.05
434.15
433.72
434.01
17
433.95
434.22
433.92
435.33
435.16
435.37
434.96
434.31
434.04
434.13
433.74
434.01
18
433.97
434.58
433.94
435.39
435.11
435.18
434.96
434.28
434.04
433.99
433.73
433.99
19
434.01
434.72
433.97
434.92
435.33
435.34
435.04
434.27
434.02
433.92
433.73
433.92
20
434.18
434.91
433.97
434.74
435.12
435.42
434.94
434.27
434.01
433.89
433.72
433.88
21
434.01
434.78
434.21
434.77
435.53
435.71
434.88
434.27
434.00
433.87
433.71
433.87
22
433.91
434.39
434.16
434.62
435.93
435.49
434.83
434.26
433.97
433.85
433.71
433.85
23
433.95
434.28
434.18
434.63
435.37
435.37
434.82
434.25
433.97
433.83
433.70
433.77
24
434.13
434.15
434.11
434.76
435.14
435.43
434.52
434.25
433.96
433.81
433.70
433.73
25
434.37
434.10
434.14
434.91
435.12
435.41
434.50
434.25
433.95
433.81
433.68
433.79
26
434.50
434.17
434.77
434.80
436.25
435.31
434.40
434.22
433.95
433.81
433.67
433.79
27
434.34
434.19
435.42
434.87
436.36
435.37
434.46
434.21
433.95
433.81
433.67
433.81
28
434.26
434.17
435.25
434.49
436.63
435.73
434.46
434.21
433.96
433.80
433.66
433.82
29
434.09
434.17
434.71
434.41
435.93
436.19
434.45
434.21
433.95
433.79
433.68
433.81
30
434.16
434.19
434.37
434.38
435.28
436.05
434.96
434.21
433.92
433.79
433.81
31
434.21
434.39
435.14
434.84
433.92
433.79
433.81
----------
--------------
Mean
434.01
434.43
434.23
434.56
435.39
435.46
434.94
434.37
434.05
433.88
433.76
433.79
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Max
434.50
434.91
435.42
435.39
436.63
436.26
435.83
434.65
434.20
434.15
433.93
434.01
436.63
Min
433.80
434.10
433.92
434.06
434.68
435.00
434.40
434.21
433.92
433.79
433.66
433.67
433.66
436.71
m. (MSL.) ,
433.47
m. (MSL.) ,
River Bed 432.73
m. (MSL)
438.96
m. (MSL.) ,
438.95
m. (MSL.) ,
Drainage Area 2614 Square Kilometers
at 24.00 Hours , on Aug 27 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation