Basic HTML Version
360
Location : on left bank near Amphoe Taphan Hin Office about 250 meters from Station N.10
30,328 sq.km.
WATER YEAR : 2011
NAN RIVER BASIN
Nan River at Ban Taphan Hin , Phichit (N.10A)
Lat 16 - 13 - 00 N Long 100 - 25 - 19 E
Drainge Area
Amphoe
Taphan Hin
Changwat
Phichit
Ban
Taphan Hin
Staff gage
+22.280 m. (MSL.)
B.M.-H.D.
On left bank near automatic gage building.
Elevation
5-time daily readings at 06.00, 09.00, 12.00, 15.00 and 18.00 hours.
Arithmetic means of 5 readings
1969 to date
Rating Operation
Period of Available Gage Records
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+33.300 m. (MSL.)
Type of Gage
Bench Mark
Location BM
1974 - 1979, 1991 to date
-
1974 - 1982, 1987, 1991 to date
Stable.
No overbank flow.
Records good. Flow effected by Naresuan Dam.
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
24.07
24.22
27.85
26.67
30.82
33.38
33.38
31.92
24.60
26.81
27.99
27.96
2
24.22
24.30
28.24
26.66
31.06
33.40
33.38
31.65
24.14
26.74
28.06
27.85
3
24.38
24.49
28.36
26.92
31.53
33.42
33.38
31.39
24.20
26.66
28.15
27.69
4
24.42
24.70
28.17
27.17
31.92
33.42
33.36
31.12
24.38
26.61
28.27
27.53
5
24.43
24.88
27.90
27.39
32.11
33.43
33.35
30.86
24.55
26.68
28.28
27.36
6
24.47
24.86
27.80
27.58
32.22
33.45
33.36
30.60
24.50
27.10
28.26
27.21
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Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
24.55
25.15
28.01
27.77
32.26
33.45
33.34
30.34
24.40
27.37
28.11
27.05
8
24.62
25.38
28.23
27.43
32.21
33.46
33.33
30.08
24.35
27.64
27.97
26.94
9
24.70
25.60
28.45
27.10
32.22
33.48
33.32
29.82
24.53
27.91
27.86
26.98
10
24.77
25.71
28.64
26.71
32.23
33.48
33.28
29.57
24.90
28.01
27.88
26.93
11
24.94
25.36
28.49
26.41
32.25
33.46
33.22
29.33
25.01
27.41
27.94
26.87
12
25.29
25.10
28.27
26.44
32.32
33.46
33.18
29.15
25.00
26.85
27.97
27.00
13
25.43
24.91
27.94
26.76
32.43
33.47
33.09
28.96
25.12
26.69
28.01
27.12
14
25.57
24.95
27.67
27.09
32.55
33.49
32.96
28.77
25.24
26.66
28.04
27.23
15
25.63
24.98
26.97
27.42
32.63
33.50
32.88
28.58
25.45
26.64
28.00
27.20
16
25.50
25.05
26.75
27.80
32.72
33.51
32.79
28.40
26.03
26.61
27.95
27.08
17
25.36
25.23
26.54
28.48
32.75
33.51
32.72
28.21
26.35
26.56
27.96
26.77
18
25.15
25.42
26.44
29.01
32.80
33.50
32.69
27.96
26.56
26.55
28.04
26.46
19
24.95
25.61
26.68
29.56
32.89
33.48
32.63
27.62
26.44
26.60
28.07
26.11
20
24.80
25.80
26.92
30.00
32.98
33.48
32.56
27.28
26.24
26.69
28.10
25.59
21
24.63
25.94
27.15
30.21
33.05
33.46
32.45
26.96
26.07
26.84
28.14
25.08
22
24.49
25.98
27.30
30.42
33.10
33.45
32.37
26.62
26.08
26.91
28.18
24.68
23
24.38
25.97
27.13
30.59
33.15
33.43
32.26
26.30
26.13
26.98
28.21
24.59
24
24.27
25.71
26.95
30.64
33.20
33.45
32.16
25.96
26.46
27.03
28.20
24.51
25
24.17
25.45
26.76
30.71
33.22
33.43
32.04
25.65
26.52
27.05
28.16
24.45
26
24.10
25.19
26.54
30.70
33.25
33.41
32.04
25.48
26.48
27.06
28.09
24.39
27
24.36
25.03
26.25
30.69
33.27
33.41
32.04
25.35
26.42
27.02
28.06
24.36
28
24.36
25.23
26.35
30.70
33.28
33.41
32.04
25.21
26.36
27.16
28.09
24.31
29
24.13
25.61
26.86
30.71
33.30
33.41
32.04
25.06
26.46
27.50
27.74
24.29
30
23.94
26.32
27.18
30.74
33.38
33.39
32.04
24.93
26.62
27.68
24.30
31
27.21
30.75
33.39
32.04
26.85
27.93
24.29
----------
--------------
Mean
24.67
25.33
27.43
28.62
32.60
33.45
32.77
28.30
25.56
27.03
28.06
26.13
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Max
25.63
27.21
28.64
30.75
33.39
33.51
33.38
31.92
26.85
28.01
28.28
27.96
33.51
Min
23.94
24.22
26.25
26.41
30.82
33.38
32.04
24.93
24.14
26.55
27.74
24.29
23.94
33.52
m. (MSL.) ,
22.28
m. (MSL.) ,
River Bed 19.92
m. (MSL)
33.99
m. (MSL.) ,
33.71
m. (MSL.) ,
Drainage Area 30328 Square Kilometers
at 22.00 Hours , on Sep 15 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation