Basic HTML Version
408
Location : on left bank at Bang Krathum.
25,489 sq.km.
WATER YEAR : 2014
NAN RIVER BASIN
Nan River at Bang Krathum , Phitsanulok (N.74)
Lat 16 - 34 - 38 N Long 100 - 14 - 33 E
Drainge Area
Amphoe
Bang Krathum
Changwat
Phitsanulok
Ban
-
Staff gage
+29.360 m. (MSL.)
B.M.- H.D.
On left bank near the gage site.
Elevation
5-time daily readings at 06.00, 09.00, 12.00, 15.00 and 18.00 hours.
Arithmetic mean of 5 readings
2001 to date
Rating Operation
Period of Available Gage Records
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+44.315 m. (MSL.)
Type of Gage
Bench Mark
Location BM
2001 to date
-
2001 to date
Stable.
No overbank flow.
Records good. Stage-discharge relation defined by 35 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
32.10
31.54
31.92
31.86
33.18
33.48
32.23
30.72
30.82
31.31
31.45
31.55
2
32.03
31.95
31.89
32.10
32.96
33.79
32.07
30.78
30.89
31.31
31.58
31.52
3
31.78
32.14
31.99
31.95
32.57
34.62
31.91
30.62
30.85
31.33
31.57
31.44
4
31.68
32.46
32.01
31.84
32.18
35.37
31.63
30.75
30.90
31.26
31.58
31.47
5
31.69
32.61
31.96
31.82
32.00
35.83
31.41
30.89
30.81
31.22
31.59
31.52
6
31.76
32.57
31.92
31.86
31.90
35.81
31.24
30.76
30.89
31.27
31.47
31.56
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Gage Height in Meter (MSL.) Water Year April 1, 2014 to March 31, 2015
7
31.77
32.55
31.94
31.77
32.19
35.66
31.08
30.72
30.81
31.21
31.36
31.80
8
31.68
32.39
32.03
31.75
32.63
35.51
30.98
30.72
30.94
31.21
31.23
31.63
9
31.62
32.24
32.17
31.90
33.15
35.08
30.95
30.79
30.97
31.17
31.25
31.57
10
31.59
32.24
32.25
31.84
33.14
34.37
30.88
30.98
31.01
31.14
31.25
31.56
11
31.54
32.14
32.58
31.92
32.98
33.88
30.84
31.09
30.98
31.25
31.09
31.57
12
31.54
32.13
32.65
32.13
32.86
33.74
30.81
31.07
31.02
31.73
31.25
31.55
13
31.61
32.20
32.38
32.11
32.55
33.61
30.77
31.10
31.29
31.70
31.40
31.47
14
31.78
32.29
32.26
32.24
32.19
33.34
30.74
31.02
31.10
31.49
31.51
31.45
15
31.67
32.18
32.27
32.28
31.99
33.20
30.73
31.04
31.02
31.39
31.59
31.44
16
31.64
31.95
32.18
32.47
31.90
33.32
30.73
30.83
31.11
31.37
31.51
31.48
17
31.72
31.74
32.13
32.67
31.98
33.32
30.75
30.81
31.07
31.34
31.57
31.46
18
31.88
31.71
32.24
32.68
32.36
33.23
30.70
30.86
31.00
31.39
31.62
31.46
19
31.90
31.71
32.66
32.54
32.47
33.21
30.80
30.82
31.03
31.28
31.62
31.45
20
31.81
32.00
32.82
32.20
32.96
33.21
30.84
30.81
31.03
31.40
31.62
31.46
21
31.81
32.39
32.67
31.87
32.88
33.08
30.82
30.87
31.01
31.28
31.64
31.46
22
31.52
32.37
32.41
31.78
32.61
32.97
30.83
30.90
30.99
31.31
31.57
31.42
23
31.44
32.33
32.09
31.80
32.95
32.67
30.80
30.88
30.89
31.29
31.57
31.40
24
31.43
32.31
31.76
31.77
32.91
32.47
30.89
30.77
31.01
31.20
31.53
31.44
25
31.39
32.38
31.75
31.55
32.83
32.38
31.05
30.75
31.02
31.07
31.53
31.46
26
31.36
32.15
31.70
31.56
32.27
32.55
31.37
30.74
31.03
31.28
31.57
31.34
27
31.29
32.03
31.58
31.85
32.15
32.52
31.17
30.78
31.18
31.42
31.56
31.30
28
31.27
31.55
31.54
31.90
32.07
32.51
31.36
30.84
31.43
31.33
31.56
31.30
29
31.27
31.66
31.51
32.19
32.43
32.43
31.54
30.78
31.43
31.32
31.30
30
31.34
31.79
31.39
32.91
32.63
32.29
30.98
30.81
31.35
31.24
31.34
31
31.84
32.99
33.04
30.73
31.28
31.26
31.34
----------
--------------
Mean
31.63
32.11
32.09
32.07
32.55
33.65
31.08
30.84
31.04
31.32
31.49
31.47
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Max
32.10
32.61
32.82
32.99
33.18
35.83
32.23
31.10
31.43
31.73
31.64
31.80
35.83
Min
31.27
31.54
31.39
31.55
31.90
32.29
30.70
30.62
30.81
31.07
31.09
31.30
30.62
35.89
m. (MSL.) ,
29.36
m. (MSL.) ,
River Bed 28.04
m. (MSL.)
44.40
m. (MSL.) ,
44.46
m. (MSL.) ,
Drainage Area 25489 Square Kilometers
at 18.00 Hours , on Sep 5 , 2014
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation