Page 436 - Yearbook2013_v56_new

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400
i
i h b k h b id hi h f
b
WATER YEAR : 2013
NAN RIVER BASIN
Nan River at Ban Pha Khwang , Nan (N.64)
Lat 19 - 00 - 32 N Long 100 - 47 - 19 E
Locat on : on r g t an at t e r ge on g way rom Tam on Bo.
3,476
sq.km.
Water - stage recorder
+210.900 m. (MSL.)
B.M.- Temporary.
On right bank at the approach of the bridge.
Elevation
Recording
Drainge Area
Location BM
Gage Reading Frequency
Zero Gage at Bottom
+223.555 m. (MSL.)
Bench Mark
Type of Gage
Amphoe
Mueang
Changwat
Nan
Ban
Pha Khwang
Arithmetic mean of 24 readings
1994 to date
1994 to date
-
1994 to date
Stable.
No overbank flow.
Rating Operation
Period of Rating
Rated by Flot
Period of Available Gage Records
Basis of Mean Daily Gage Height
Rated by Current Meter
Stability of Channel Regimes
Overbank Flow Conditions
Records fair. Stage-discharge relation defined by 45 discharge measurements made in 2013.
Date
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Annual
----------
-----------------
1
211.70
211.67
211.77
211.91
215.29
213.43
212.59
211.99
211.87
211.78
211.67
211.56
2
211.71
211.68
211.76
211.85
214.54
213.15
212.50
211.97
211.86
211.77
211.67
211.59
3
211.73
211.78
211.84
211.83
213.79
212.94
212.41
211.95
211.86
211.77
211.67
211.59
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (MSL.) Water Year April 1, 2013 to March 31, 2014
General Description
4
211.71
211.78
211.86
211.83
213.20
212.73
212.38
211.94
211.86
211.77
211.66
211.59
5
211.71
211.89
211.84
211.99
213.02
212.81
212.37
211.94
211.86
211.77
211.66
211.59
6
211.70
211.91
211.95
211.92
212.92
214.03
212.38
211.92
211.86
211.76
211.66
211.58
7
211.70
211.88
211.87
211.87
214.02
214.60
212.35
211.88
211.86
211.75
211.65
211.58
8
211.69
211.86
211.85
211.83
214.45
213.59
212.24
211.90
211.86
211.76
211.65
211.57
9
211.68
211.91
211.84
211.87
216.46
213.84
212.19
211.92
211.82
211.75
211.65
211.57
10
211.68
212.08
211.85
211.98
216.49
213.34
212.18
211.92
211.78
211.75
211.65
211.57
11
211.68
211.90
212.11
211.98
215.38
213.07
212.15
211.90
211.78
211.74
211.63
211.57
12
211 68
211 83
211 98
212 03
214 34
212 95
212 15
211 91
211 78
211 74
211 63
211 56
.
.
.
.
.
.
.
.
.
.
.
.
13
211.68
211.80
211.92
212.11
213.67
213.22
212.13
211.91
211.79
211.73
211.63
211.56
14
211.69
211.78
211.80
212.15
213.55
212.92
212.12
211.91
211.79
211.73
211.62
211.57
15
211.72
211.75
211.77
212.35
213.29
213.80
212.10
211.90
211.86
211.74
211.62
211.57
16
211.72
211.74
211.75
212.43
213.31
213.60
212.10
211.90
212.57
211.75
211.62
211.56
17
211.73
211.73
211.72
212.46
213.41
213.20
212.11
211.90
212.09
211.72
211.62
211.56
18
211.72
211.70
211.71
212.35
213.00
213.06
212.15
211.89
211.90
211.72
211.62
211.55
19
211.70
211.72
211.72
212.29
213.09
212.97
212.17
211.89
211.91
211.72
211.62
211.55
20
211.69
211.77
211.77
212.18
213.41
212.88
212.14
211.92
211.93
211.71
211.61
211.55
21
211.68
211.86
211.93
212.12
213.27
212.66
212.08
211.91
211.92
211.70
211.60
211.55
22
211.68
211.80
211.89
212.13
214.42
212.58
212.07
211.90
211.87
211.70
211.60
211.55
23
211.68
211.81
211.80
212.65
213.86
212.50
212.07
211.86
211.83
211.70
211.60
211.55
24
211.69
211.81
211.79
213.04
214.08
212.53
212.11
211.85
211.82
211.70
211.60
211.56
25
211.69
211.93
211.79
212.90
213.38
212.67
212.30
211.84
211.80
211.69
211.60
211.56
26
211.70
211.84
211.84
212.72
213.17
212.72
212.12
211.84
211.80
211.69
211.60
211.61
27
211.70
211.80
211.86
212.57
213.18
213.09
212.07
211.88
211.80
211.68
211.60
211.61
28
211.69
211.76
211.90
212.67
213.06
213.26
212.04
211.88
211.79
211.68
211.60
211.61
29
211.67
211.73
211.94
217.24
212.91
212.92
212.02
211.87
211.79
211.68
211.60
30
211.67
211.71
211.91
218.34
213.03
212.68
212.00
211.87
211.78
211.68
211.59
31
211.75
215.12
213.98
212.00
211.78
211.67
211.58
----------
--------------
Mean
211.70
211.81
211.84
212.67
213.84
213.12
212.19
211.90
211.87
211.73
211.63
211.57
Max
211.73
212.08
212.11
218.34
216.49
214.60
212.59
211.99
212.57
211.78
211.67
211.61
218.34
Min
211.67
211.67
211.71
211.83
212.91
212.50
212.00
211.84
211.78
211.67
211.60
211.55
211.55
219.82
m. (MSL.) ,
210.90
m. (MSL.) ,
River Bed 210.60
m. (MSL.)
226.44
m. (MSL.) ,
224.10
m. (MSL.) ,
Drainage Area 3476 Square Kilometers
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at 01.00 Hours , on Jul 3 , 2013
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation