Basic HTML Version
366
i
i h b k b kil
d
i iki
i
l
h
il
d
WATER YEAR : 2013
NAN RIVER BASIN
Nan River at Ban Hat Phai , Uttaradit (N.12A)
Lat 17 - 44 - 11 N Long 100 - 32 - 27 E
Locat on : on r g t an a out 4 ometers ownstream, S r t Dam S te, a ong P asom - S ot roa .
15,579 sq.km.
Water - stage recorder
+69.000 m. (MSL.)
B.M.-H.D.
On right bank in front of gage observer's house.
Elevation
Recording
Drainge Area
Amphoe
Tha Pla
Changwat
Uttaradit
Ban
Hat Phai
Gage Reading Frequency
Zero Gage at Bottom
+84.000 m. (MSL.)
Type of Gage
Bench Mark
Location BM
Arithmetic mean of 24 readings
1966 to date
1966 to date
-
1966 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 fair. Flow regulated by Sirikit Dam reservoir about 6 kilometers above gage site.
Stage-discharge relation defined by 20 discharge measurements made in 2013.
Date
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Annual
----------
-----------------
1
71.34
70.77
71.21
71.04
71.00
71.03
70.44
70.05
70.37
70.94
71.50
71.25
2
71.32
71.64
70.69
71.08
71.06
71.00
70.50
70.06
70.26
70.93
71.57
70.98
3
71.15
71.55
71.28
71.08
70.93
70.71
70.61
70.16
70.10
71.23
71.89
71.76
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (MSL.) Water Year April 1, 2013 to March 31, 2014
General Description
4
71.35
71.26
71.24
70.84
70.76
70.40
70.55
70.12
70.09
70.92
72.05
71.46
5
71.29
70.91
71.34
70.91
70.53
70.48
70.54
70.19
70.66
71.11
71.30
71.48
6
71.19
70.91
71.52
71.08
70.75
70.55
70.45
70.04
70.47
71.39
71.54
71.46
7
70.90
71.32
71.08
70.90
70.65
70.43
70.45
69.96
70.36
71.11
71.95
71.53
8
71.10
71.23
71.18
71.33
70.86
70.49
70.43
69.93
70.51
71.11
71.52
71.12
9
71.10
71.27
71.11
71.26
71.04
70.56
70.37
70.09
70.95
71.08
71.37
70.66
10
71.17
71.17
71.52
71.25
70.95
70.62
70.32
69.98
70.99
71.23
71.63
71.55
11
71.42
70.80
71.14
71.22
70.87
70.39
70.30
70.28
70.77
71.17
71.74
71.56
12
71 11
70 88
71 33
70 96
70 65
70 59
70 30
70 13
70 84
70 45
71 67
71 24
.
.
.
.
.
.
.
.
.
.
.
.
13
70.30
71.97
71.33
71.01
70.76
70.51
70.23
70.14
70.79
71.41
71.92
71.37
14
71.34
71.37
71.11
70.76
70.64
71.01
70.23
70.05
71.16
71.55
71.77
71.39
15
70.26
71.40
70.93
71.16
70.43
71.01
70.31
70.27
71.01
71.37
71.46
70.83
16
70.40
71.43
70.96
70.81
70.50
71.02
70.21
70.11
70.87
71.31
70.89
71.06
17
71.03
71.54
70.98
71.05
70.42
70.94
70.21
70.53
70.97
71.18
71.79
71.54
18
71.21
71.10
71.15
70.78
70.35
70.56
70.27
70.02
70.76
70.47
71.16
71.51
19
71.02
70.97
71.41
70.99
70.37
70.35
70.71
70.19
71.64
71.05
71.52
71.50
20
70.83
71.53
71.24
70.90
70.46
70.51
70.91
70.15
71.98
71.53
71.65
71.49
21
70.49
71.45
71.19
70.94
70.61
70.50
70.77
70.20
71.40
71.34
71.66
71.22
22
71.14
71.05
70.89
70.65
70.79
70.44
70.54
70.17
70.78
71.86
71.78
70.85
23
70.89
71.26
71.04
70.90
71.08
70.41
70.35
70.11
71.42
71.72
70.90
70.69
24
71.23
70.90
71.04
70.86
70.75
70.41
70.55
70.05
71.13
71.46
71.43
71.47
25
71.04
70.94
71.00
71.00
70.59
70.42
70.63
70.38
71.19
71.62
71.65
71.25
26
71.05
71.07
70.73
71.34
70.73
70.71
70.68
70.13
71.15
71.44
71.61
71.35
27
70.89
71.30
70.77
71.11
70.58
70.94
70.44
70.05
71.22
71.66
71.57
71.21
28
70.44
71.22
71.06
70.96
70.38
71.58
70.42
70.13
70.91
71.69
71.50
71.36
29
70.82
71.29
70.68
70.86
70.49
70.91
70.38
70.14
70.73
71.73
71.11
30
71.25
71.29
70.78
70.90
70.69
70.58
70.28
70.11
70.95
71.46
71.20
31
71.36
71.15
70.59
70.32
71.09
71.94
71.35
----------
--------------
Mean
71.00
71.23
71.10
71.00
70.69
70.67
70.44
70.13
70.89
71.31
71.57
71.28
Max
71.42
71.97
71.52
71.34
71.08
71.58
70.91
70.53
71.98
71.94
72.05
71.76
72.05
Min
70.26
70.77
70.68
70.65
70.35
70.35
70.21
69.93
70.09
70.45
70.89
70.66
69.93
73.73
m. (MSL.) ,
69.00
m. (MSL.) ,
River Bed 66.89
m. (MSL.)
82.44
m. (MSL.) ,
81.45
m. (MSL.) ,
Drainage Area 15579 Square Kilometers
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
at 15.00 Hours , on Dec 20 , 2013
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation