Basic HTML Version
352
Location : on right bank at Mueang, Uttaradit.
16,865 sq.km.
WATER YEAR : 2011
NAN RIVER BASIN
Nan River at Nai Mueang , Uttaradit (N.2B)
Lat 17 - 36 - 30 N Long 100 - 06 - 08 E
Amphoe
Mueang
Changwat
Uttaradit
Ban
Nai Mueang
Drainge Area
Staff gage
+52.300 m. (MSL.)
B.M.-H.D.
On right bank near the gage site.
Elevation
5-time daily readings at 06.00, 09.00, 12.00, 15.00 and 18.00 hours.
Arithmetic means of 5 readings
1993 to date
+63.138 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
1993 to date
-
1993 to date
Stable.
No overbank flow.
Records very good. Stage-discharge relation defined by 29 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
53.41
52.89
53.07
52.65
58.16
57.84
58.08
53.77
53.53
54.68
55.76
55.31
2
53.38
52.96
52.96
52.73
58.31
57.73
57.85
53.62
53.56
54.33
56.03
55.27
3
53.33
52.96
52.75
52.83
57.46
57.70
57.93
53.73
53.61
54.77
56.01
55.14
4
53.56
52.83
52.80
52.83
57.51
57.60
58.47
53.51
53.39
55.13
55.58
55.43
5
52.97
52.77
52.84
52.71
57.64
57.73
58.75
53.62
53.65
55.28
56.23
55.09
6
53.04
52.82
53.02
52.72
57.02
58.01
58.32
53.61
53.53
55.73
55.68
55.21
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Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
53.00
52.80
52.91
52.86
57.06
58.20
57.80
53.53
53.85
56.21
56.06
55.49
8
53.01
52.77
52.88
52.76
57.55
58.14
57.17
53.51
53.85
55.22
56.00
54.90
9
53.21
52.75
52.75
52.83
57.35
58.24
56.97
53.37
53.78
54.94
55.98
55.16
10
53.40
52.83
52.64
53.51
57.14
58.41
56.53
53.59
53.76
54.85
55.97
55.48
11
53.29
52.86
52.63
53.40
57.82
58.30
55.35
53.31
53.81
54.96
56.05
55.41
12
53.44
52.78
52.61
53.60
58.99
57.71
54.70
53.39
53.95
54.72
56.08
55.35
13
53.37
52.72
52.78
53.34
58.53
57.96
54.41
53.45
54.60
54.77
55.41
55.32
14
53.44
52.72
52.70
53.43
58.09
58.41
54.40
53.40
54.59
55.04
55.99
55.35
15
53.45
52.76
52.82
53.55
57.66
58.33
54.43
53.25
54.89
55.01
56.16
55.29
16
53.45
52.83
53.05
53.73
57.54
58.10
54.40
53.25
54.29
54.60
55.89
54.63
17
53.42
52.76
53.04
53.77
57.57
57.85
54.29
53.23
54.75
54.75
56.01
54.77
18
53.43
52.74
52.73
53.92
58.13
57.55
54.19
53.23
54.54
54.71
56.20
54.30
19
53.33
52.93
52.90
53.85
58.32
57.39
53.28
53.04
54.62
54.98
56.04
54.32
20
53.51
52.95
52.86
53.97
58.21
57.40
53.19
53.09
54.57
54.87
55.74
54.26
21
53.25
52.84
52.76
54.25
58.20
58.01
53.39
53.23
54.55
54.92
55.91
53.69
22
53.07
52.72
52.85
54.23
58.10
58.19
53.32
53.04
54.84
55.11
55.89
53.58
23
52.92
52.80
52.73
54.08
57.77
58.43
53.39
53.00
54.79
54.98
55.73
53.72
24
52.96
52.70
52.73
53.88
57.88
58.34
53.45
53.04
54.57
54.57
55.79
53.71
25
52.61
52.83
52.74
54.12
57.85
58.20
53.51
53.18
54.68
55.05
55.53
53.66
26
52.78
52.85
52.94
53.86
57.80
57.99
53.49
53.01
54.83
55.22
55.83
53.86
27
52.70
52.85
53.33
53.89
57.79
57.80
53.51
53.10
54.82
55.38
54.92
53.68
28
52.69
52.88
53.39
54.23
57.80
58.23
53.56
53.25
54.74
55.48
55.02
53.53
29
52.75
52.85
52.83
54.19
57.78
58.54
53.54
53.49
54.80
55.96
55.31
53.71
30
52.76
53.21
52.51
54.54
57.79
58.45
53.71
53.37
54.59
55.55
53.73
31
53.25
54.83
57.78
53.75
54.87
56.08
53.71
----------
--------------
Mean
53.16
52.85
52.85
53.58
57.83
58.03
55.13
53.34
54.30
55.09
55.82
54.58
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Max
53.56
53.25
53.39
54.83
58.99
58.54
58.75
53.77
54.89
56.21
56.23
55.49
58.99
Min
52.61
52.70
52.51
52.65
57.02
57.39
53.19
53.00
53.39
54.33
54.92
53.53
52.51
59.07
m. (MSL.) ,
52.30
m. (MSL.) ,
River Bed 47.18
m. (MSL)
59.93
m. (MSL.) ,
60.83
m. (MSL.) ,
Drainage Area 16865 Square Kilometers
at 15.00 Hours , on Aug 12 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation