306
Location : on left bank about 50 meters from Si Satchanalai - Den Chai Highway No.101 at guidepost 44 th.
12,100 sq.km.
WATER YEAR : 2011
YOM RIVER BASIN
Yom River at Ban Don Rabiang , Sukhothai (Y.14)
Lat 17 - 35 - 42 N Long 99 - 43 - 06 E
Amphoe
Si Satchanalai
Changwat
Sukhothai
Ban
Don Rabiang
Drainge Area
Staff gage
+65.100 m. (MSL.)
B.M.-H.D.
In front of gage observer's house.
Elevation
5-time daily readings at 06.00, 09.00, 12.00, 15.00 and 18.00 hours.
Arithmetic means of 5 readings
1964 to date
+78.363 m. (MSL.)
Bench Mark
Type of Gage
Rating Operation
Period of Available Gage Records
Location BM
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
1964 to date
-
1964 to date
Fairly stable.
Overbank flow starts at elevation +74.480 m. (MSL.), records are channel flow only.
Records good. Stage-discharge relation defined by 19 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
65.90
67.19
68.92
73.85
72.02
69.55
70.28
67.55
66.71
66.28
66.17
66.09
2
65.90
68.21
68.91
70.47
75.71
69.63
70.17
67.51
66.70
66.26
66.16
66.08
3
65.90
68.24
68.34
69.09
76.81
70.01
72.26
67.49
66.68
66.24
66.16
66.00
4
65.90
67.86
67.75
68.82
76.93
69.89
74.02
67.42
66.68
66.25
66.18
65.99
5
65.90
67.94
67.60
68.90
76.80
69.56
72.89
67.37
66.66
66.29
66.20
65.99
6
65.89
68.34
67.91
68.66
76.05
70.04
71.41
67.32
66.64
66.28
66.18
65.98
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
65.89
68.49
68.90
68.32
71.27
70.61
70.29
67.23
66.61
66.27
66.19
65.98
8
65.88
68.11
69.09
67.96
70.05
70.77
69.62
67.21
66.60
66.26
66.21
65.96
9
65.88
68.07
69.70
67.58
70.34
71.05
69.28
67.22
66.59
66.24
66.18
65.96
10
65.86
69.06
68.90
67.67
70.57
71.86
69.12
67.18
66.56
66.24
66.16
65.95
11
65.86
69.85
68.09
68.07
70.83
71.14
68.99
67.18
66.54
66.24
66.16
65.97
12
65.90
69.44
67.72
68.11
73.08
70.75
68.90
67.11
66.52
66.26
66.15
66.03
13
65.99
71.02
67.56
67.90
73.89
70.72
68.83
67.16
66.50
66.29
66.14
66.04
14
66.13
69.91
67.43
67.28
74.42
72.30
69.47
67.10
66.50
66.27
66.14
66.03
15
66.08
68.52
67.20
67.32
74.72
72.21
68.87
67.09
66.49
66.27
66.14
66.00
16
65.92
68.12
67.12
67.36
72.59
71.93
68.92
67.08
66.49
66.27
66.13
66.16
17
65.97
68.18
66.89
70.05
70.67
71.32
68.93
67.03
66.47
66.25
66.12
66.30
18
65.98
68.36
66.94
71.67
70.55
70.68
69.05
67.01
66.44
66.25
66.05
66.30
19
65.98
69.02
67.18
70.92
70.94
70.19
69.15
67.02
66.41
66.25
66.04
66.27
20
65.99
69.55
67.17
69.68
71.66
69.75
68.74
67.00
66.38
66.25
66.03
66.22
21
66.20
69.56
67.15
69.13
71.35
69.74
68.48
66.93
66.36
66.24
66.02
66.21
22
66.33
69.38
66.95
68.81
72.30
70.33
68.21
66.90
66.35
66.24
65.98
66.25
23
66.16
68.90
66.76
68.69
72.69
70.33
68.15
66.90
66.33
66.22
65.96
66.21
24
66.28
68.03
66.70
68.59
71.80
70.00
68.08
66.88
66.31
66.20
65.95
66.14
25
66.33
67.65
66.57
68.81
70.36
69.84
67.93
66.88
66.31
66.19
65.94
66.12
26
66.76
67.40
66.59
68.65
70.31
69.51
67.84
66.86
66.30
66.18
65.93
66.11
27
66.99
67.04
67.69
69.01
70.47
69.67
67.72
66.83
66.29
66.17
65.93
66.08
28
67.05
67.82
72.04
68.65
71.12
69.37
67.67
66.80
66.28
66.17
66.03
66.05
29
67.17
67.95
73.09
68.17
71.06
69.86
67.60
66.80
66.28
66.16
66.09
66.01
30
67.25
68.37
73.75
67.56
71.05
70.54
67.53
66.76
66.28
66.15
66.00
31
68.26
68.11
69.99
67.63
66.28
66.15
65.99
----------
--------------
Mean
66.17
68.51
68.22
68.83
72.34
70.44
69.23
67.09
66.47
66.23
66.09
66.08
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Max
67.25
71.02
73.75
73.85
76.93
72.30
74.02
67.55
66.71
66.29
66.21
66.30
76.93
Min
65.86
67.04
66.57
67.28
69.99
69.37
67.53
66.76
66.28
66.15
65.93
65.95
65.86
76.96
m. (MSL.) ,
65.10
m. (MSL.) ,
River Bed 62.37
m. (MSL)
78.34
m. (MSL.) ,
74.47
m. (MSL.) ,
Drainage Area 12100 Square Kilometers
at 18.00 Hours , on Aug 4 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation