46
Location : on left bank at Ban Pang Rim Kon.
49
sq.km.
WATER YEAR : 2011
NAM MAE KOK RIVER BASIN
Nam Mae Kon at Ban Pang Rim Kon , Chiang Rai (G.4)
Lat 19 - 50 - 23 N Long 99 - 40 - 27 E
Drainge Area
Amphoe
Mueang
Changwat
Chiang Rai
Ban
Pang Rim Kon
Staff gage
+461.700 m. (MSL.)
B.M.-H.D.
On left bank about 66.50 meters from the top staff gage.
Elevation
3-time daily readings at 06.00, 12.00 and 18.00 hours.
Arithmetic means of 3 readings
1983 to date
Rating Operation
Period of Available Gage Records
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+465.100 m. (MSL.)
Type of Gage
Bench Mark
Location BM
2000 to date
-
2000 to date
Fairly stable.
No overbank flow.
Records fair. Stage-discharge relation defined by 38 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
462.38
462.43
462.41
462.42
462.88
462.53
462.57
462.40
463.17
462.32
462.29
462.31
2
462.38
462.42
462.42
462.42
462.69
462.54
462.54
462.42
463.13
462.32
462.29
462.31
3
462.38
462.43
462.43
462.42
462.56
462.51
462.53
462.40
463.15
462.32
462.29
462.31
4
462.38
462.47
462.44
462.42
462.50
462.50
462.53
462.40
463.15
462.32
462.29
462.31
5
462.38
462.45
462.44
462.41
462.48
462.50
462.51
462.39
463.15
462.32
462.29
462.31
6
462.38
462.41
462.43
462.41
462.45
462.61
462.50
462.39
463.14
462.32
462.29
462.29
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
462.38
462.39
462.41
462.40
463.17
462.53
462.49
462.39
463.13
462.32
462.28
462.27
8
462.38
462.39
462.41
462.40
462.80
462.52
462.47
462.39
462.99
462.31
462.28
462.27
9
462.38
462.39
462.41
462.40
462.51
462.53
462.45
462.45
462.96
462.31
462.27
462.26
10
462.38
462.39
462.41
462.40
462.50
462.50
462.45
462.45
463.16
462.31
462.56
462.27
11
462.38
462.39
462.41
462.40
462.49
462.49
462.45
462.61
462.35
462.31
462.49
462.27
12
462.38
462.39
462.40
462.39
462.98
462.48
462.45
462.53
462.35
462.31
462.29
462.30
13
462.38
462.40
462.39
462.40
462.58
462.70
462.45
462.40
462.35
462.33
462.28
462.40
14
462.38
462.40
462.41
462.42
462.54
462.61
462.45
462.40
462.34
462.37
462.28
462.32
15
462.38
462.40
462.41
462.48
462.53
462.60
462.45
462.46
462.34
462.33
462.28
462.29
16
462.38
462.40
462.41
462.55
462.53
462.56
462.45
462.57
462.33
462.33
462.28
462.31
17
462.38
462.41
462.41
462.48
462.54
462.55
462.45
462.57
462.33
462.31
462.28
462.27
18
462.38
462.43
462.41
462.42
462.55
462.98
462.45
462.57
462.33
462.31
462.28
462.27
19
462.38
462.54
462.41
462.43
462.55
462.65
462.44
462.63
462.33
462.31
462.29
462.27
20
462.41
462.45
462.41
462.44
462.67
462.78
462.45
462.78
462.33
462.30
462.31
462.27
21
462.41
462.43
462.50
462.42
463.04
462.63
462.44
462.78
462.33
462.30
462.31
462.26
22
462.41
462.41
462.41
462.42
462.65
462.63
462.44
462.83
462.33
462.30
462.31
462.26
23
462.41
462.41
462.41
462.42
462.63
462.60
462.43
463.00
462.33
462.30
462.31
462.26
24
462.41
462.41
462.41
462.42
462.60
462.67
462.41
463.05
462.33
462.30
462.31
462.54
25
462.41
462.41
462.41
462.43
462.58
462.63
462.41
463.23
462.33
462.30
462.31
462.77
26
462.40
462.41
462.50
462.43
462.63
463.09
462.41
463.19
462.33
462.30
462.31
462.80
27
462.38
462.45
462.45
462.42
462.58
463.34
462.41
463.18
462.32
462.30
462.31
462.82
28
462.40
462.42
462.42
462.42
462.58
462.60
462.45
463.18
462.32
462.30
462.31
462.88
29
462.41
462.42
462.42
462.41
462.56
462.61
462.40
463.17
462.32
462.29
462.31
462.81
30
462.41
462.43
462.42
462.40
462.55
462.57
462.42
463.17
462.32
462.29
462.85
31
462.43
462.42
462.55
462.40
462.32
462.29
462.85
----------
--------------
Mean
462.39
462.42
462.42
462.42
462.63
462.63
462.46
462.68
462.58
462.31
462.31
462.42
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Max
462.41
462.54
462.50
462.55
463.17
463.34
462.57
463.23
463.17
462.37
462.56
462.88
463.34
Min
462.38
462.39
462.39
462.39
462.45
462.48
462.40
462.39
462.32
462.29
462.27
462.26
462.26
464.47
m. (MSL.) ,
461.70
m. (MSL.) ,
River Bed 461.80
m. (MSL)
465.77
m. (MSL.) ,
465.77
m. (MSL.) ,
Drainage Area
49
Square Kilometers
at 03.00 Hours , on Sep 27 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation