Basic HTML Version
308
Location : on right bank about 5 meters downstream from Phathana Phak Nua 8 Bridge.
7,749
sq.km.
Amphoe
Mueang
Changwat
Phrae
Ban
Nam Khong
WATER YEAR : 2014
YOM RIVER BASIN
Yom River at Ban Nam Khong , Phrae (Y.1C)
Lat 18 - 07 - 57 N Long 100 - 07 - 42 E
Drainge Area
Water - stage recorder.
+143.500 m. (MSL.)
B.M.-H.D.
In front of the station office
Elevation
Recording
Arithmetic mean of 24 readings
1979 to date
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+153.972 m. (MSL.)
Type of Gage
Bench Mark
Location BM
Rating Operation
Period of Available Gage Records
1979 to date
-
1979 to date
Stable because of backwater effect.
No overbank flow.
Records good. Mae yom weir situated about 76 kilometers above gage site.
Stage-discharge relation defined by 53 discharge measurements made in 2014.
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
143.95
144.12
144.33
144.68
145.84
148.48
146.40
144.58
144.39
144.18
144.15
144.31
2
143.95
144.17
144.33
144.71
145.45
149.55
145.63
144.55
144.39
144.19
144.14
144.25
3
143.94
144.37
144.31
144.57
145.08
151.14
145.37
144.54
144.38
144.18
144.14
144.27
4
143.96
144.42
144.28
144.44
145.09
151.62
145.11
144.81
144.38
144.17
144.14
144.28
5
143.98
145.27
144.24
144.39
145.07
150.63
144.94
145.10
144.35
144.17
144.13
144.29
6
144.01
144.74
144.25
144.35
145.67
148.96
145.02
144.82
144.35
144.17
144.14
144.28
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Gage Height in Meter (MSL.) Water Year April 1, 2014 to March 31, 2015
7
144.01
144.66
144.27
144.33
145.91
150.00
145.48
144.92
144.36
144.16
144.14
144.28
8
144.00
145.77
144.23
144.35
145.70
148.84
145.15
145.37
144.35
144.16
144.19
144.27
9
144.00
145.89
144.20
144.73
145.30
147.26
144.90
145.17
144.35
144.17
144.15
144.26
10
143.99
144.92
144.20
146.93
145.31
146.38
144.80
144.88
144.32
144.23
144.14
144.24
11
143.98
144.70
144.22
146.74
145.52
145.84
144.74
144.76
144.32
144.35
144.14
144.25
12
144.00
144.55
144.24
145.30
145.14
145.56
145.20
144.71
144.32
144.58
144.13
144.25
13
144.00
144.47
144.22
144.77
144.96
145.41
145.29
144.66
144.30
144.52
144.12
144.25
14
144.02
144.41
144.28
144.65
144.81
145.30
144.96
144.63
144.29
144.41
144.12
144.25
15
144.12
144.37
144.84
144.65
145.01
145.42
144.80
144.61
144.28
144.34
144.12
144.24
16
144.06
144.37
144.64
144.60
145.18
145.73
144.70
144.58
144.26
144.31
144.12
144.25
17
144.02
144.37
144.50
144.64
144.95
145.51
144.69
144.55
144.22
144.27
144.11
144.25
18
144.02
144.35
144.37
144.89
144.73
145.22
144.64
144.55
144.21
144.26
144.10
144.25
19
143.99
144.37
144.32
145.44
145.39
145.04
144.58
144.53
144.19
144.25
144.12
144.26
20
143.99
144.34
144.30
145.45
146.82
144.99
144.56
144.52
144.19
144.21
144.12
144.29
21
143.99
144.42
144.27
145.25
149.41
144.93
144.56
144.52
144.18
144.19
144.11
144.28
22
143.99
144.39
144.24
144.83
147.79
145.06
144.57
144.50
144.17
144.18
144.12
144.29
23
143.99
144.35
144.20
145.53
145.87
145.19
144.99
144.49
144.17
144.18
144.13
144.30
24
143.99
144.30
144.17
147.05
145.27
145.11
145.71
144.49
144.18
144.16
144.15
144.31
25
144.07
144.25
144.15
145.98
144.94
146.95
145.57
144.47
144.17
144.18
144.16
144.32
26
144.17
144.23
144.17
145.40
144.84
147.37
145.15
144.46
144.18
144.14
144.16
144.32
27
144.19
144.20
144.22
144.94
145.08
146.25
144.89
144.44
144.20
144.15
144.22
144.33
28
144.15
144.19
144.20
146.26
145.14
145.90
144.74
144.42
144.18
144.17
144.37
144.33
29
144.13
144.25
144.19
146.76
145.18
145.49
144.67
144.41
144.19
144.20
144.32
30
144.09
144.29
144.45
145.97
145.73
145.71
144.61
144.40
144.18
144.17
144.37
31
144.29
145.45
147.90
144.61
144.19
144.13
144.35
----------
--------------
Mean
144.02
144.51
144.29
145.23
145.62
146.83
145.00
144.65
144.26
144.23
144.15
144.28
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Max
144.19
145.89
144.84
147.05
149.41
151.62
146.40
145.37
144.39
144.58
144.37
144.37
151.62
Min
143.94
144.12
144.15
144.33
144.73
144.93
144.56
144.40
144.17
144.13
144.10
144.24
143.94
151.77
m. (MSL.) ,
143.50
m. (MSL.) ,
River Bed 143.07
m. (MSL.)
154.00
m. (MSL.) ,
154.03
m. (MSL.) ,
Drainage Area 7749 Square Kilometers
at 06.00 Hours , on Sep 4 , 2014
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation