Basic HTML Version
410
Location : on left bank at Bang Krathum.
25,489 sq.km.
Amphoe
Bang Krathum
Changwat
Phitsanulok
Ban
-
WATER YEAR : 2011
NAN RIVER BASIN
Nan River at Bang Krathum , Phitsanulok (N.74)
Lat 16 - 34 - 38 N Long 100 - 14 - 33 E
Drainge Area
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 means of 5 readings
2001 to date
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+44.315 m. (MSL.)
Type of Gage
Bench Mark
Location BM
Rating Operation
Period of Available Gage Records
2001 to date
-
2001 to date
Stable.
No overbank flow.
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
33.11
32.73
33.37
33.30
35.22
39.65
40.02
36.01
31.29
33.62
34.78
34.13
2
33.15
32.82
33.56
33.46
36.09
39.67
39.96
36.05
31.54
33.79
34.94
34.20
3
33.06
32.88
33.53
33.46
36.98
39.70
39.90
35.82
31.53
33.70
35.02
34.07
4
33.00
33.11
33.22
33.46
37.81
39.70
39.90
35.76
31.37
33.74
35.11
34.05
5
33.36
33.05
32.95
33.46
38.49
39.71
39.98
35.59
31.41
34.07
35.04
34.04
6
33.13
33.16
32.86
33.46
38.56
39.71
40.01
35.39
31.18
34.30
34.87
34.07
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Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
32.73
33.40
33.02
33.20
38.51
39.71
40.02
35.43
31.14
34.93
34.81
33.99
8
32.54
33.49
33.26
33.08
38.13
39.65
40.00
35.05
31.89
34.70
34.65
34.04
9
32.43
33.31
33.29
33.00
38.18
39.61
39.90
34.68
32.39
34.99
34.73
33.95
10
32.48
33.05
33.21
32.93
38.29
39.71
39.77
34.74
32.34
34.52
34.77
33.88
11
32.96
33.01
32.99
32.89
38.29
39.84
39.68
34.65
31.97
33.83
34.81
33.93
12
33.22
32.88
32.82
33.05
38.43
39.65
39.46
34.21
31.90
33.72
34.79
34.19
13
33.08
32.84
32.58
33.11
38.80
39.87
39.00
34.10
32.09
33.82
34.81
34.22
14
33.34
32.92
32.87
33.17
39.02
39.87
38.65
34.06
32.92
33.75
34.82
34.21
15
33.82
33.20
33.02
33.65
39.01
39.95
38.51
34.09
33.28
33.71
34.65
34.20
16
33.73
33.62
32.93
34.03
38.98
39.99
38.34
33.88
33.66
33.80
34.65
33.99
17
33.50
33.68
32.59
34.47
38.91
40.01
38.24
33.63
33.72
33.67
34.96
33.96
18
33.51
33.55
32.67
35.12
38.97
40.02
38.10
33.52
33.43
33.63
35.07
33.42
19
33.38
33.57
32.91
35.64
39.26
40.00
37.81
33.86
33.14
33.74
35.02
33.17
20
33.30
33.76
32.90
35.56
39.45
40.01
37.61
33.14
32.99
33.88
35.05
32.58
21
33.24
33.69
32.92
35.66
39.51
39.97
37.29
32.80
33.26
33.84
35.04
32.31
22
33.22
33.57
32.92
35.79
39.61
40.02
37.16
32.92
33.45
33.86
34.97
32.20
23
32.94
33.49
32.89
35.76
39.64
40.03
36.96
32.23
33.63
33.99
35.01
31.83
24
32.78
33.29
32.77
35.86
39.66
40.07
36.63
32.19
33.83
33.91
34.99
31.76
25
32.73
33.12
32.61
35.78
39.52
40.05
36.54
32.00
33.73
33.99
34.93
31.72
26
32.95
33.20
32.40
35.70
39.61
40.12
36.53
31.89
33.36
33.83
34.88
31.79
27
33.02
33.27
32.07
35.51
39.61
40.07
36.51
31.67
33.41
34.08
34.85
31.70
28
32.90
33.19
32.47
35.57
39.61
40.04
36.47
31.75
33.83
34.46
34.70
31.75
29
32.80
32.94
33.19
35.56
39.69
40.05
36.42
31.68
33.86
34.64
34.24
31.72
30
32.72
32.59
33.22
35.64
39.62
40.07
36.34
31.57
33.91
34.87
31.56
31
32.62
35.76
39.70
36.31
33.84
34.79
31.77
----------
--------------
Mean
33.07
33.19
32.93
34.39
38.75
39.88
38.32
33.81
32.75
34.07
34.86
33.17
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Max
33.82
33.76
33.56
35.86
39.70
40.12
40.02
36.05
33.91
34.99
35.11
34.22
40.12
Min
32.43
32.59
32.07
32.89
35.22
39.61
36.31
31.57
31.14
33.62
34.24
31.56
31.14
40.12
m. (MSL.) ,
29.36
m. (MSL.) ,
River Bed 27.84
m. (MSL)
41.78
m. (MSL.) ,
42.77
m. (MSL.) ,
Drainage Area 25489 Square Kilometers
at 06.00 Hours , on Sep 26 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation