Basic HTML Version
322
i
i h b k
f h b id f
k hi
d
WATER YEAR : 2013
YOM RIVER BASIN
Nam Pi at Ban Mang , Phayao (Y.24)
Lat 18 - 53 - 11 N Long 100 - 17 - 20 E
Locat on : on r g t an upstream o t e r ge rom Pong Sanu - C ang Muan roa .
590
sq.km.
Staff gage
+257.765 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.
Drainge Area
Location BM
Gage Reading Frequency
Zero Gage at Bottom
+264.800 m. (MSL.)
Bench Mark
Type of Gage
Amphoe
Chiang Muan
Changwat
Phayao
Ban
Mang
Arithmetic mean of 3 readings
1977 to date
1979 - 1986 , 1996 to date
-
1979 - 1986 , 1996 to date
Fairly stable because of backwater effect.
No overbank flow.
Rating Operation
Period of Rating
Rated by Flot
Period of Available Gage Records
Basis of Mean Daily Gage Height
Rated by Current Meter
Stability of Channel Regimes
Overbank Flow Conditions
Records fair. The channel flow silted about 100 meters downstream from the gage site.
Stage-discharge relation defined by 34 discharge measurements made in 2013.
Date
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Annual
----------
-----------------
1
259.82
259.76
259.81
259.60
259.88
259.85
259.91
259.64
259.62
259.55
259.52
259.77
2
259.84
259.75
259.89
259.59
259.82
259.85
259.88
259.63
259.62
259.57
259.49
259.69
3
259.82
259.75
259.88
259.57
259.89
259.84
259.85
259.62
259.62
259.59
259.47
259.62
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (MSL.) Water Year April 1, 2013 to March 31, 2014
General Description
4
259.79
259.77
259.87
259.60
259.95
259.81
259.80
259.61
259.62
259.58
259.45
259.60
5
259.77
259.82
259.87
259.64
259.97
259.85
259.75
259.60
259.61
259.56
259.43
259.59
6
259.75
259.82
259.84
259.62
259.99
259.89
260.45
259.66
259.61
259.56
259.41
259.58
7
259.75
259.88
259.83
259.62
260.05
259.83
260.08
259.64
259.60
259.57
259.41
259.58
8
259.75
259.85
259.81
259.61
260.01
259.83
259.93
259.63
259.60
259.59
259.44
259.57
9
259.72
259.85
259.82
259.62
261.28
259.97
259.84
259.62
259.60
259.57
259.48
259.57
10
259.71
259.85
259.81
259.61
261.58
259.88
259.73
259.62
259.59
259.55
259.49
259.57
11
259.70
259.85
260.00
259.61
261.17
259.86
259.71
259.62
259.56
259.55
259.70
259.55
12
259 70
259 84
259 93
259 63
260 55
260 03
259 75
259 65
259 52
259 54
259 79
259 52
.
.
.
.
.
.
.
.
.
.
.
.
13
259.70
259.84
259.83
259.65
260.04
260.02
259.77
259.65
259.48
259.54
259.80
259.50
14
259.70
259.83
259.78
259.64
259.97
260.05
259.76
259.63
259.46
259.57
259.77
259.49
15
259.70
259.82
259.71
259.86
259.95
260.01
259.74
259.62
259.48
259.58
259.75
259.45
16
259.71
259.81
259.66
259.83
259.91
259.98
259.74
259.68
259.62
259.60
259.75
259.40
17
259.81
259.80
259.65
259.80
259.85
260.13
259.73
259.65
259.69
259.60
259.74
259.39
18
259.82
259.80
259.68
259.79
259.82
259.98
259.73
259.66
259.68
259.60
259.74
259.38
19
259.82
259.79
259.75
259.77
259.78
259.94
259.73
259.68
259.68
259.61
259.73
259.36
20
259.81
259.79
259.68
259.77
259.75
259.93
259.72
259.68
259.68
259.61
259.73
259.35
21
259.81
259.79
259.74
259.74
260.16
259.81
259.75
259.67
259.66
259.60
259.73
259.35
22
259.82
259.82
259.75
259.72
260.66
259.87
259.75
259.67
259.62
259.59
259.75
259.35
23
259.82
259.80
259.71
259.72
260.64
259.91
259.73
259.66
259.60
259.58
259.79
259.38
24
259.83
259.79
259.66
259.78
260.13
259.92
259.94
259.65
259.59
259.58
259.81
259.40
25
259.83
259.80
259.63
259.80
260.02
259.98
260.13
259.64
259.58
259.57
259.82
259.40
26
259.82
259.83
259.60
259.80
259.96
259.87
259.98
259.64
259.57
259.57
259.81
259.40
27
259.80
259.85
259.60
259.79
259.88
260.11
259.89
259.64
259.56
259.57
259.81
259.39
28
259.79
259.82
259.59
259.77
259.83
260.11
259.82
259.63
259.55
259.57
259.80
259.39
29
259.77
259.80
259.60
259.81
259.82
260.05
259.78
259.63
259.53
259.57
259.38
30
259.77
259.79
259.62
260.01
259.86
259.98
259.72
259.62
259.52
259.57
259.34
31
259.77
259.97
259.83
259.68
259.52
259.57
259.31
----------
--------------
Mean
259.77
259.81
259.75
259.72
260.13
259.94
259.83
259.64
259.59
259.58
259.66
259.47
Max
259.84
259.88
260.00
260.01
261.58
260.13
260.45
259.68
259.69
259.61
259.82
259.77
261.58
Min
259.70
259.75
259.59
259.57
259.75
259.81
259.68
259.60
259.46
259.54
259.41
259.31
259.31
261.60
m. (MSL.) ,
257.77
m. (MSL.) ,
River Bed 256.46
m. (MSL.)
266.24
m. (MSL.) ,
266.70
m. (MSL.) ,
Drainage Area 590 Square Kilometers
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
at 12.00 Hours , on Aug 10 , 2013
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation