Basic HTML Version
312
Location : on left bank at the bridge on highway from in front of Amphoe Sam Ngam office.
22,034 sq.km.
WATER YEAR : 2011
YOM RIVER BASIN
Yom River at Ban Sam Ngam , Phichit (Y.17)
Lat 16 - 30 - 24 N Long 100 - 12 - 27 E
Drainge Area
Amphoe
Sam Ngam
Changwat
Phichit
Ban
Sam Ngam
Staff gage
+31.490 m. (MSL.)
B.M.-H.D.
On left bank about 50 meters from Amphoe Sam Ngam Office.
Elevation
5-time daily readings at 06.00, 09.00, 12.00, 15.00 and 18.00 hours.
Arithmetic means of 5 readings
1967 to date
Rating Operation
Period of Available Gage Records
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+40.506 m. (MSL.)
Type of Gage
Bench Mark
Location BM
1967 , 1990 to date
-
1967 , 1990 to date
Fairly stable.
No overbank flow.
Records fair. Stage-discharge relation defined by 22 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
32.97
34.11
35.83
35.69
36.70
38.30
38.37
37.80
34.37
32.83
33.49
33.77
2
32.81
34.40
35.82
35.88
36.90
38.28
38.35
37.78
34.31
32.84
33.49
33.68
3
32.55
34.51
35.79
36.00
37.33
38.28
38.27
37.78
34.25
32.91
33.45
33.49
4
32.37
34.59
35.85
36.08
37.41
38.26
38.31
37.64
33.78
32.92
33.40
33.50
5
32.20
34.71
35.85
36.14
37.49
38.23
38.32
37.63
33.57
32.93
33.44
33.62
6
32.11
34.89
35.86
36.18
37.53
38.21
38.32
37.55
33.33
32.93
33.51
33.95
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Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
31.98
35.23
35.90
36.20
37.57
38.21
38.32
37.57
33.22
32.94
33.60
33.87
8
31.92
35.24
35.95
36.21
37.61
38.18
38.33
37.48
33.17
32.95
33.56
33.84
9
31.79
35.24
36.01
36.22
37.65
38.16
38.30
37.44
33.16
32.94
33.54
33.84
10
31.67
35.16
36.05
36.23
37.67
38.13
38.35
37.42
33.09
32.93
33.60
33.70
11
31.60
35.10
36.01
36.24
37.70
38.12
38.38
37.35
33.08
32.93
33.68
33.53
12
31.54
35.02
36.01
36.24
37.73
38.14
38.40
37.24
32.94
33.08
33.71
33.47
13
31.65
34.97
36.01
36.24
37.78
38.16
38.41
37.12
32.88
33.29
33.88
33.44
14
32.29
34.98
36.01
36.26
37.83
38.17
38.40
37.10
32.84
33.35
33.94
33.45
15
32.67
35.09
36.01
36.27
37.85
38.20
38.38
36.98
32.78
33.47
33.94
33.48
16
33.22
35.38
36.01
36.31
37.87
38.20
38.31
37.01
32.64
33.46
33.94
34.03
17
33.27
35.58
35.99
36.34
37.88
38.19
38.33
36.93
32.36
33.43
33.91
33.96
18
33.09
35.75
35.98
36.37
37.89
38.19
38.32
36.84
32.25
33.49
33.89
33.71
19
32.83
35.79
36.01
36.41
37.96
38.17
38.29
36.74
32.23
33.55
33.91
33.49
20
32.93
35.85
36.01
36.44
38.03
38.18
38.28
36.56
32.52
33.61
33.94
33.43
21
33.27
35.87
36.03
36.47
38.08
38.26
38.22
36.51
32.54
33.60
33.91
33.38
22
33.25
35.87
36.03
36.51
38.11
38.32
38.19
36.42
32.65
33.49
33.83
33.32
23
32.98
35.84
36.00
36.54
38.15
38.35
38.10
36.28
32.68
33.65
33.49
33.28
24
32.85
35.83
35.96
36.57
38.18
38.39
38.09
36.13
32.74
33.71
33.47
33.36
25
33.29
35.83
35.92
36.60
38.21
38.41
38.04
36.05
32.81
33.69
33.29
33.59
26
33.89
35.78
35.84
36.61
38.25
38.41
37.99
35.79
32.83
33.62
33.37
33.48
27
34.22
35.77
35.79
36.63
38.29
38.41
37.96
35.57
32.81
33.48
33.53
33.30
28
34.27
35.79
35.76
36.64
38.33
38.41
37.93
35.35
32.81
33.45
33.74
33.21
29
34.10
35.78
35.74
36.65
38.33
38.40
37.89
34.98
32.82
33.49
33.74
33.15
30
34.08
35.77
35.65
36.66
38.35
38.39
37.85
34.63
32.84
33.56
33.09
31
35.79
36.66
38.32
37.82
32.86
33.49
33.05
----------
--------------
Mean
32.79
35.34
35.92
36.34
37.84
38.26
38.22
36.79
33.01
33.29
33.66
33.53
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Max
34.27
35.87
36.05
36.66
38.35
38.41
38.41
37.80
34.37
33.71
33.94
34.03
38.41
Min
31.54
34.11
35.65
35.69
36.70
38.12
37.82
34.63
32.23
32.83
33.29
33.05
31.54
38.42
m. (MSL.) ,
31.49
m. (MSL.) ,
River Bed 29.81
m. (MSL)
40.45
m. (MSL.) ,
40.43
m. (MSL.) ,
Drainage Area 22034 Square Kilometers
at 16.00 Hours , on Sep 25 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation