Basic HTML Version
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WATER YEAR : 2013
NAN RIVER BASIN
Nan River at Bang Krathum , Phitsanulok (N.74)
Lat 16 - 34 - 38 N Long 100 - 14 - 33 E
Locat on : on e t an at Bang Krat um.
25,489 sq.km.
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.
Drainge Area
Amphoe
Bang Krathum
Changwat
Phitsanulok
Ban
-
Gage Reading Frequency
Zero Gage at Bottom
+44.315 m. (MSL.)
Type of Gage
Bench Mark
Location BM
Arithmetic mean of 5 readings
2001 to date
2001 to date
-
2001 to date
Stable.
No overbank flow.
Rated by Current Meter
Stability of Channel Regimes
Overbank Flow Conditions
Rating Operation
Period of Rating
Rated by Flot
Period of Available Gage Records
Basis of Mean Daily Gage Height
Records good. Stage-discharge relation defined by 30 discharge measurements made in 2013.
Date
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Annual
----------
-----------------
1
31.52
31.48
31.09
31.16
31.42
31.40
36.08
33.29
30.77
31.90
31.97
31.69
2
31.60
31.55
31.17
31.09
31.38
31.94
35.72
33.04
30.83
31.90
31.98
31.80
3
31.83
31.58
31.11
30.98
31.41
32.92
35.22
32.72
30.84
31.89
31.94
31.73
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Gage Height in Meter (MSL.) Water Year April 1, 2013 to March 31, 2014
General Description
4
31.81
31.96
31.18
31.02
31.41
33.09
34.96
32.60
31.17
31.97
31.92
31.74
5
31.77
32.16
31.23
31.04
31.29
32.86
34.90
32.47
31.33
32.03
31.93
31.96
6
31.80
32.32
31.42
30.96
31.13
32.18
35.08
32.21
31.76
31.82
31.89
31.76
7
31.73
32.30
31.49
30.82
31.11
31.99
35.02
32.22
32.20
31.84
31.86
31.61
8
31.72
32.51
31.50
30.94
30.92
32.02
34.68
32.03
32.36
31.88
31.86
31.44
9
31.67
32.82
31.43
31.40
30.96
32.20
34.29
31.77
32.02
31.77
31.76
31.28
10
31.65
32.19
31.32
31.66
30.97
32.33
33.95
31.71
31.97
31.71
31.63
31.21
11
31.67
32.05
31.38
32.08
31.13
32.30
33.57
31.65
31.73
31.70
31.71
31.21
12
31 67
32 00
31 42
32 31
31 45
32 76
33 34
31 42
31 52
31 59
31 77
31 35
.
.
.
.
.
.
.
.
.
.
.
.
13
31.67
31.78
31.46
32.40
32.26
32.85
33.30
31.11
31.45
31.54
31.82
31.28
14
31.61
31.66
31.58
32.11
32.71
32.85
33.26
31.11
31.46
31.50
31.78
31.40
15
31.59
31.95
31.68
31.84
32.66
32.88
33.02
31.08
31.35
31.67
31.69
31.38
16
31.72
32.11
31.43
31.39
32.51
33.27
32.73
31.09
31.36
31.84
31.75
31.39
17
31.63
32.18
31.07
31.98
32.42
33.93
32.60
31.51
31.69
31.71
31.84
31.42
18
31.39
32.04
30.85
31.18
32.58
34.24
32.60
31.50
31.87
31.57
31.79
31.03
19
31.71
31.87
30.76
31.20
32.37
34.10
32.62
31.37
31.56
31.38
31.92
31.35
20
31.72
31.93
30.76
31.09
32.19
33.86
32.79
31.09
31.36
31.41
31.83
31.41
21
31.63
31.90
30.95
31.00
31.81
33.53
33.23
30.91
31.40
31.44
31.73
31.41
22
31.59
32.01
31.53
30.95
31.45
33.50
33.33
30.94
31.90
31.56
31.77
31.30
23
31.56
31.92
31.59
30.86
31.37
33.76
33.20
31.04
32.07
31.60
31.68
31.28
24
31.74
31.65
31.56
30.98
31.68
33.81
33.00
30.98
32.06
31.64
31.74
31.39
25
31.79
31.37
31.58
31.01
33.05
33.72
33.09
31.01
32.06
31.76
31.67
31.57
26
31.72
31.39
31.62
31.00
33.45
33.75
33.49
31.01
31.95
31.90
31.67
31.71
27
31.62
31.35
31.55
30.89
32.85
33.81
33.97
30.95
31.88
31.97
31.76
31.68
28
31.52
31.42
31.47
31.11
32.18
34.00
33.97
30.97
31.86
31.92
31.74
31.72
29
31.47
31.42
31.28
31.25
31.81
35.38
33.85
31.02
31.84
31.91
31.77
30
31.46
31.34
31.18
31.28
31.52
36.16
33.87
30.96
31.74
31.98
31.78
31
31.24
31.38
31.37
33.52
31.80
32.04
31.86
----------
--------------
Mean
31.65
31.85
31.32
31.30
31.83
33.25
33.81
31.56
31.65
31.75
31.80
31.51
Max
31.83
32.82
31.68
32.40
33.45
36.16
36.08
33.29
32.36
32.04
31.98
31.96
36.16
Min
31.39
31.24
30.76
30.82
30.92
31.40
32.60
30.91
30.77
31.38
31.63
31.03
30.76
36.24
m. (MSL.) ,
29.36
m. (MSL.) ,
River Bed 27.78
m. (MSL.)
44.41
m. (MSL.) ,
44.47
m. (MSL.) ,
Drainage Area 25489 Square Kilometers
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at 18.00 Hours , on Sep 30 , 2013
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation