Basic HTML Version
28
Location : on right bank at the bridge of Mae Chan - Mae Sai Highway from Tambon Pa Sang.
248
sq.km.
Drainge Area
WATER YEAR : 2014
KHONG RIVER BASIN
Nam Mae Chan at Ban Hua Saphan , Chiang Rai (Kh.89)
Lat 20 - 09 - 25 N Long 99 - 51 - 45 E
Amphoe
Mae Chan
Changwat
Chiang Rai
Ban
Hua Saphan
Water - stage recorder
+406.385 m. (MSL.)
B.M.- Temporary.
On right bank at the footpath of the bridge.
Elevation
Recording
Arithmetic mean of 24 readings
1993 to date
Rating Operation
Period of Available Gage Records
Location BM
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+408.840 m. (MSL.)
Bench Mark
Type of Gage
1993 to date
-
1993 to date
Stable.
No overbank flow.
Records fair. The local weir situated about 300 meters downstream from the gage site.
Stage-discharge relation defined by 47 discharge measurements made in 2014.
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
406.80
406.80
407.05
406.84
407.12
407.20
407.02
406.99
406.96
406.89
406.93
406.79
2
406.81
406.82
407.05
406.88
407.11
407.18
407.03
406.97
406.96
406.91
406.93
406.79
3
406.84
407.10
407.01
406.94
407.11
407.32
407.00
406.97
406.96
406.94
406.93
406.79
4
406.84
406.96
407.01
406.93
407.24
407.40
406.96
407.86
406.95
406.94
406.93
406.79
5
406.94
406.92
406.95
406.93
407.26
407.42
406.93
407.41
406.95
406.94
406.94
406.80
6
407.01
406.89
406.97
406.95
407.80
408.00
406.85
407.39
406.95
406.94
406.94
406.79
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Gage Height in Meter (MSL.) Water Year April 1, 2014 to March 31, 2015
7
406.93
406.91
407.03
407.02
407.34
407.52
406.83
407.37
406.95
406.94
406.94
406.82
8
406.90
406.93
406.89
407.34
407.21
407.36
406.81
407.21
406.95
406.94
406.94
406.74
9
406.89
406.95
406.79
408.04
407.15
407.24
406.80
407.13
406.94
406.96
406.94
406.67
10
406.89
406.97
406.81
407.32
407.45
407.06
406.79
407.10
406.94
406.99
406.93
406.69
11
406.89
406.98
406.95
406.96
407.16
407.00
406.80
407.09
406.94
406.97
406.93
406.89
12
406.89
407.02
406.88
406.92
407.09
406.94
406.80
407.06
406.94
406.97
406.93
406.88
13
406.89
407.11
407.05
407.58
407.09
406.93
406.88
407.05
406.94
406.97
406.89
406.81
14
406.86
407.04
407.07
407.21
407.14
406.92
406.99
407.05
406.94
406.96
406.92
406.81
15
406.79
407.04
407.05
407.08
407.19
407.00
406.99
407.04
406.93
406.95
406.89
406.88
16
406.79
407.02
406.96
407.33
407.21
406.94
406.98
407.04
406.93
406.95
406.89
406.84
17
406.79
407.03
406.94
407.03
407.12
406.97
406.97
407.03
407.03
406.95
406.88
406.84
18
406.78
407.03
406.94
406.95
407.10
407.57
406.97
407.03
407.03
406.95
406.87
406.84
19
406.77
407.09
406.94
407.26
407.09
407.28
407.01
407.02
407.03
406.95
406.84
406.77
20
406.78
407.03
406.94
407.13
407.10
407.24
406.99
407.02
407.03
406.95
406.84
406.74
21
406.79
407.03
406.94
407.00
407.30
407.09
406.98
407.01
407.04
406.94
406.86
406.74
22
406.79
407.02
406.94
407.52
407.23
406.98
407.01
407.01
407.04
406.93
406.89
406.84
23
406.80
406.98
406.93
407.05
407.12
406.93
406.99
407.01
406.99
406.93
406.89
406.84
24
406.79
406.94
406.93
407.28
407.10
406.97
407.00
407.01
406.99
406.93
406.89
406.88
25
406.75
406.99
406.93
407.43
407.33
407.08
406.96
407.01
406.97
406.93
406.89
406.88
26
406.74
407.04
406.94
407.29
407.50
407.01
406.95
407.01
406.94
406.93
406.86
406.89
27
406.72
407.01
406.91
407.26
407.44
407.05
406.88
407.01
406.93
406.93
406.84
406.89
28
406.70
407.01
406.93
407.17
407.30
407.03
406.84
407.00
406.92
406.93
406.84
406.92
29
406.70
407.04
406.93
407.00
408.11
407.05
406.84
407.00
406.91
406.93
406.89
30
406.70
407.03
406.91
407.00
408.18
407.15
406.90
406.99
406.90
406.93
406.89
31
407.00
407.03
407.86
406.85
406.89
406.93
406.84
----------
--------------
Mean
406.82
406.99
406.95
407.15
407.31
407.16
406.92
407.10
406.96
406.94
406.90
406.82
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Max
407.01
407.11
407.07
408.04
408.18
408.00
407.03
407.86
407.04
406.99
406.94
406.92
408.18
Min
406.70
406.80
406.79
406.84
407.09
406.92
406.79
406.97
406.89
406.89
406.84
406.67
406.67
409.31
m. (MSL.) ,
406.39
m. (MSL.) ,
River Bed 406.21
m. (MSL.)
411.67
m. (MSL.) ,
411.67
m. (MSL.) ,
Drainage Area 248 Square Kilometers
at 17.00 Hours , on Aug 29 , 2014
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation