Basic HTML Version
392
Location : on right bank about 1 kilometer downstream from Wat Hat Song Khwae.
18,447 sq.km.
Drainge Area
WATER YEAR : 2011
NAN RIVER BASIN
Nan River at Ban Hat Song Khwae , Uttaradit (N.60)
Lat 17 - 24 - 54 N Long 100 - 07 - 58 E
Amphoe
Tron
Changwat
Uttaradit
Ban
Hat Song Khwae
Water - stage recorder
+48.500 m. (MSL.)
B.M.-H.D.
On right bank near the Meteorological Station.
Elevation
Recording
Arithmetic means of 24 readings
1986 to date
Rating Operation
Period of Available Gage Records
Location BM
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+57.592 m. (MSL.)
Bench Mark
Type of Gage
1986 to date
-
1986 to date
Stable.
No overbank flow.
Records very good. Flow effected by Sirikit Dam reservior.
Stage-discharge relation defined by 32 discharge measurements made in 2011.
Period of Rating
Rated by Flot
Rated by Current Meter
Stability of Channel Regimes
Overbank Flow Conditions
General Description
Date
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Annual
----------
-----------------
1
50.67
49.77
50.14
49.34
54.47
54.96
55.47
51.01
50.69
51.73
52.96
52.48
2
50.75
49.88
49.93
49.46
55.97
54.92
55.22
50.98
50.67
51.66
53.12
52.44
3
50.62
49.89
49.69
49.44
55.42
54.89
55.21
51.00
50.68
52.09
53.09
52.45
4
50.41
49.83
49.63
49.62
55.45
54.81
55.69
51.00
50.76
52.25
52.94
52.51
5
50.07
49.70
49.72
49.56
55.44
54.89
55.95
50.94
50.60
52.56
53.11
52.42
6
50.01
49.65
50.00
49.42
54.70
55.32
55.73
50.99
50.66
52.79
52.93
52.44
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Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
49.93
49.61
49.92
49.53
54.45
55.60
55.23
50.69
50.91
53.10
53.11
52.58
8
49.99
49.58
49.75
49.50
54.69
55.44
54.66
50.72
51.04
52.78
53.10
52.30
9
50.13
49.53
49.62
49.40
54.72
55.41
54.33
50.72
51.06
52.44
53.08
52.42
10
50.21
49.52
49.57
50.13
54.41
55.77
53.92
50.73
51.03
52.02
53.08
52.54
11
50.32
49.62
49.46
50.28
54.74
55.92
53.07
50.57
50.97
52.32
53.06
52.64
12
50.23
49.57
49.39
50.23
55.95
55.42
52.29
50.70
50.97
52.29
53.06
52.32
13
50.62
49.51
49.36
50.24
56.04
55.16
51.66
50.66
51.88
52.28
52.86
52.49
14
50.72
49.47
49.47
50.69
55.51
56.02
51.90
50.67
52.02
52.33
52.88
52.41
15
50.62
49.54
49.60
50.66
55.02
56.07
51.69
50.70
52.02
52.37
53.17
52.39
16
50.54
49.53
49.74
50.86
54.78
55.77
51.76
50.48
51.92
52.11
53.13
51.98
17
50.53
49.63
49.83
50.82
54.78
55.52
51.72
50.46
51.95
52.08
53.09
51.79
18
50.51
49.62
49.60
50.99
55.36
55.11
51.49
50.47
51.88
52.23
53.13
51.61
19
50.49
49.74
49.60
51.00
55.77
54.84
50.71
50.31
51.84
52.22
53.09
50.96
20
50.53
49.76
49.68
51.32
55.75
54.73
50.58
50.22
52.02
52.20
52.91
50.99
21
50.69
49.84
49.67
51.57
55.60
55.18
50.67
50.13
52.06
52.21
53.06
50.84
22
50.04
49.69
49.58
51.66
55.54
55.48
50.59
50.36
52.07
52.31
53.06
50.67
23
49.62
49.51
49.54
51.50
55.17
55.78
50.56
50.27
52.17
51.96
52.98
50.79
24
49.70
49.46
49.45
51.31
55.09
55.79
50.50
50.18
51.96
52.11
52.98
50.76
25
49.67
49.49
49.46
51.03
55.07
55.64
50.47
50.13
52.05
52.36
52.77
50.80
26
49.50
49.53
49.50
51.29
55.03
55.37
50.83
50.27
52.07
52.34
52.87
50.72
27
49.60
49.65
49.88
51.16
54.97
55.16
50.79
50.14
52.07
52.60
52.25
50.81
28
49.50
49.63
50.38
51.43
55.06
55.48
50.90
50.10
52.11
52.69
52.27
50.83
29
49.46
49.73
49.96
51.50
55.06
55.88
50.99
50.58
52.09
52.98
52.43
50.66
30
49.55
49.93
49.42
51.87
54.97
55.83
51.00
50.74
52.09
52.78
50.78
31
50.37
52.18
54.98
51.02
52.01
52.95
50.85
----------
--------------
Mean
50.17
49.67
49.68
50.61
55.16
55.41
52.47
50.56
51.56
52.36
52.95
51.70
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Max
50.75
50.37
50.38
52.18
56.04
56.07
55.95
51.01
52.17
53.10
53.17
52.64
56.07
Min
49.46
49.46
49.36
49.34
54.41
54.73
50.47
50.10
50.60
51.66
52.25
50.66
49.34
56.18
m. (MSL.) ,
48.50
m. (MSL.) ,
River Bed 44.83
m. (MSL)
58.72
m. (MSL.) ,
58.72
m. (MSL.) ,
Drainage Area 18447 Square Kilometers
at 22.00 Hours , on Aug 12 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation