Basic HTML Version
414
Location : on right bank at Ban Nong Khon
-
sq.km.
WATER YEAR : 2011
NAN RIVER BASIN
Khlong Huai Chan at Ban Nong Khon, Nakhon Sawan (N.76)
Lat 15 - 55 - 38 N Long 100 - 13 - 44 E
Drainge Area
Amphoe
Chum Saeng
Changwat
Nakhon Sawan
Ban
Nong Khon
Water - stage recorder
+0.000 m. (MSL.)
B.M.-H.D.
On right bank at the abutment of the bridge
Elevation
Recording
Arithmetic means of 24 readings
2009 to date
Rating Operation
Period of Available Gage Records
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+27.770 m. (MSL.)
Type of Gage
Bench Mark
Location BM
2009 to date
-
2009 to date
Fairly stable.
Overbank flow starts at elevation +27.720 m.(MSL.), records are channel flow only.
Records good. Stage-discharge relation defined by 18 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
22.46
24.11
25.71
24.96
26.44
27.76
28.29
27.55
25.53
22.70
22.99
23.02
2
22.37
24.04
25.84
25.00
26.42
27.80
28.28
27.46
25.27
22.66
23.00
22.87
3
22.92
23.96
25.93
25.15
26.42
27.82
28.34
27.39
24.89
22.65
23.02
22.78
4
22.88
24.04
25.98
25.38
26.44
27.83
28.37
27.35
24.52
22.54
23.05
22.68
5
22.33
23.95
25.98
25.56
26.48
27.85
28.38
27.30
24.17
22.46
23.18
22.61
6
22.05
23.84
25.91
25.69
26.53
27.85
28.40
27.26
23.84
22.57
23.20
22.56
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Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
21.89
23.99
25.86
25.76
26.57
27.85
28.41
27.23
23.56
22.73
23.21
22.58
8
21.74
24.42
25.91
25.73
26.59
27.83
28.42
27.19
23.32
22.64
23.18
22.65
9
21.80
24.79
26.00
25.63
26.63
27.84
28.42
27.18
23.02
22.64
23.18
22.64
10
21.91
24.92
26.11
25.48
26.70
27.86
28.42
27.16
22.94
22.60
23.19
22.59
11
21.97
24.92
26.18
25.36
26.76
27.86
28.43
27.13
22.77
22.56
23.05
22.62
12
21.96
24.89
26.19
25.29
26.80
27.86
28.45
27.10
22.65
22.42
23.12
22.80
13
21.97
24.78
26.14
25.23
26.85
27.87
28.45
27.07
22.49
22.19
23.16
22.81
14
22.03
24.63
26.05
25.23
26.88
27.93
28.47
27.02
22.29
22.07
23.24
22.80
15
22.06
24.53
25.90
25.32
26.92
27.97
28.45
26.99
22.25
22.08
23.39
22.76
16
22.28
24.55
25.74
25.46
26.94
28.00
28.40
26.95
22.19
22.10
23.37
22.81
17
22.92
24.68
25.60
25.64
26.96
28.03
28.35
26.92
22.16
22.17
23.28
22.88
18
23.32
24.95
25.48
25.84
26.99
28.05
28.26
26.86
22.47
22.27
23.22
22.90
19
23.33
25.16
25.38
25.95
27.02
28.07
28.23
26.78
22.58
22.24
23.30
22.53
20
23.16
25.34
25.32
26.05
27.05
28.10
28.22
26.72
22.65
22.29
23.39
22.19
21
23.26
25.48
25.31
26.15
27.06
28.14
28.19
26.65
22.45
22.45
23.38
22.03
22
23.58
25.55
25.33
26.26
27.09
28.16
28.16
26.57
22.34
22.64
23.36
21.73
23
23.68
25.56
25.33
26.35
27.13
28.19
28.11
26.48
22.36
22.76
23.33
21.41
24
23.43
25.50
25.28
26.40
27.15
28.22
28.08
26.36
22.39
22.84
23.23
21.30
25
23.17
25.36
25.22
26.50
27.20
28.23
28.02
26.26
22.40
22.88
23.10
21.24
26
23.20
25.24
25.15
26.56
27.35
28.23
27.96
26.21
22.42
22.79
23.09
21.19
27
23.79
25.15
25.10
26.63
27.53
28.27
27.87
26.13
22.39
22.81
23.08
21.14
28
24.49
25.07
25.05
26.51
27.61
28.30
27.79
25.99
22.37
22.84
23.06
21.17
29
24.51
25.13
25.00
26.47
27.64
28.30
27.75
25.91
22.39
22.80
23.04
21.13
30
24.35
25.36
24.97
26.46
27.70
28.30
27.68
25.75
22.48
22.86
21.12
31
25.59
26.45
27.72
27.61
22.61
22.92
21.11
----------
--------------
Mean
22.83
24.82
25.63
25.82
26.95
28.01
28.21
26.83
22.97
22.55
23.19
22.21
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Max
24.51
25.59
26.19
26.63
27.72
28.30
28.47
27.55
25.53
22.92
23.39
23.02
28.47
Min
21.74
23.84
24.97
24.96
26.42
27.76
27.61
25.75
22.16
22.07
22.99
21.11
21.11
28.48
m. (MSL.) ,
0.00
m. (MSL.) ,
River Bed 19.93
m. (MSL)
27.71
m. (MSL.) ,
27.73
m. (MSL.) ,
Drainage Area
Square Kilometers
at 12.00 Hours , on Oct 14, 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation