Basic HTML Version
356
Location : on right bank opposite to Wat Bang Mun Nak.
31,472 sq.km.
WATER YEAR : 2014
NAN RIVER BASIN
Nan River at Ban Hor Krai , Phichit (N.8A)
Lat 16 - 04 - 45 N Long 100 - 24 - 00 E
Drainge Area
Amphoe
Bang Mun Nak
Changwat
Phichit
Ban
Hor Krai
Staff gage
+20.000 m. (MSL.)
B.M.-H.D.
On right bank about 89 meters upstream from the top staff gage.
Elevation
5-time daily readings at 06.00, 09.00, 12.00, 15.00 and 18.00 hours.
Arithmetic mean of 5 readings
2000 to date
Rating Operation
Period of Available Gage Records
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+30.978 m. (MSL.)
Type of Gage
Bench Mark
Location BM
2000 to date
-
2000 to date
Stable.
No overbank flow.
Records very good. Flow effected by Naresuan Dam.
Stage-discharge relation defined by 36 discharge measurements made in 2014.
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
22.47
21.76
22.62
22.21
24.97
25.94
25.41
23.28
21.65
21.96
21.73
22.18
2
22.55
21.90
22.79
22.47
25.15
26.52
25.22
23.23
21.62
21.85
21.92
22.18
3
22.79
22.41
22.83
22.75
25.00
27.27
25.12
23.27
21.54
21.73
22.13
22.13
4
22.59
23.10
22.95
22.95
24.56
28.45
24.90
23.24
21.49
21.82
22.15
22.05
5
22.34
23.44
22.96
22.88
24.19
28.68
24.68
23.25
21.46
21.76
22.21
22.04
6
22.36
23.72
22.82
22.78
24.04
28.92
24.35
23.32
21.50
21.69
22.17
22.03
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Gage Height in Meter (MSL.) Water Year April 1, 2014 to March 31, 2015
7
22.44
23.69
22.82
22.74
23.96
28.93
24.14
23.01
21.50
21.73
22.05
22.14
8
22.41
23.64
22.82
22.66
24.17
28.83
24.08
22.70
21.43
21.70
21.91
22.32
9
22.35
23.46
22.98
22.59
24.69
28.61
23.92
22.72
21.42
21.70
21.83
22.37
10
22.29
23.26
23.12
22.75
25.35
28.21
23.75
22.84
21.52
21.70
21.75
22.12
11
22.25
23.17
23.26
22.74
25.72
27.65
23.45
23.35
21.46
21.51
21.71
22.11
12
22.24
23.08
23.64
22.71
25.79
27.09
23.12
23.80
21.52
21.71
21.60
22.14
13
22.25
22.98
23.73
22.86
25.65
26.75
22.89
24.05
21.48
22.26
21.63
22.09
14
22.30
23.04
23.59
22.97
25.37
26.53
23.03
24.17
21.66
22.34
21.89
22.05
15
22.44
23.15
23.49
23.37
24.97
26.51
22.83
24.10
21.69
22.10
22.04
21.99
16
22.39
23.01
23.36
23.51
24.78
26.30
22.63
23.84
21.50
21.90
22.19
21.95
17
22.35
22.90
23.26
23.81
24.87
26.52
22.48
23.59
21.60
21.87
22.11
21.97
18
22.55
22.69
23.17
24.10
25.08
26.30
22.34
23.34
21.57
21.85
22.05
21.99
19
22.42
22.39
23.34
24.39
25.56
26.43
22.27
23.20
21.50
21.96
22.10
22.00
20
22.57
22.39
23.71
24.48
25.68
26.50
22.24
22.95
21.50
21.83
22.17
22.00
21
22.51
22.76
24.02
24.15
25.88
26.27
22.18
22.95
21.50
21.79
22.11
22.00
22
22.43
23.21
23.91
23.95
25.92
25.96
22.12
22.92
21.46
21.83
22.05
22.10
23
22.26
23.29
23.70
23.76
25.72
26.43
22.12
22.89
21.43
21.79
22.18
22.11
24
22.08
23.25
23.30
23.59
25.86
26.04
22.29
22.77
21.40
21.74
22.08
22.00
25
21.99
23.26
22.89
23.46
25.78
25.52
22.57
22.57
21.49
21.67
22.13
22.08
26
21.92
23.24
22.76
23.18
25.52
25.22
22.87
22.10
21.59
21.58
22.14
22.12
27
21.78
23.06
22.71
23.04
25.08
25.37
23.27
21.89
21.58
21.69
22.18
22.03
28
21.69
22.87
22.57
23.35
24.61
25.44
23.51
21.74
21.50
21.93
22.20
21.97
29
21.64
22.41
22.46
23.75
24.44
26.11
23.49
21.61
21.60
21.87
21.90
30
21.63
22.32
22.32
24.01
24.81
25.73
23.78
21.52
21.70
21.84
21.81
31
22.51
24.68
25.35
23.47
21.68
21.78
21.73
----------
--------------
Mean
22.28
22.95
23.13
23.31
25.11
26.83
23.37
23.01
21.53
21.82
22.01
22.05
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Max
22.79
23.72
24.02
24.68
25.92
28.93
25.41
24.17
21.70
22.34
22.21
22.37
28.93
Min
21.63
21.76
22.32
22.21
23.96
25.22
22.12
21.52
21.40
21.51
21.60
21.73
21.40
28.95
m. (MSL.) ,
20.00
m. (MSL.) ,
River Bed 19.39
m. (MSL.)
31.40
m. (MSL.) ,
31.62
m. (MSL.) ,
Drainage Area 31472 Square Kilometers
at 21.00 Hours , on Sep 6 , 2014
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation