Page 418 - yearbook2011

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384
Location : on left bank at the bridge on road.
174
sq.km.
WATER YEAR : 2011
NAN RIVER BASIN
Khlong Wang Pong at Ban Wang Pong , Phetchabun (N.54)
Lat 16 - 19 - 34 N Long 100 - 48 - 17 E
Amphoe
Chon Dan
Changwat
Phetchabun
Ban
Wang Pong
Drainge Area
Staff gage
+104.350 m. (MSL.)
B.M.-H.D.
On left bank at the abutment of the bridge.
Elevation
5-time daily readings at 06.00, 09.00, 12.00, 15.00 and 18.00 hours.
Arithmetic means of 5 readings
1999 to date
+107.656 m. (MSL.)
Bench Mark
Type of Gage
Rating Operation
Period of Available Gage Records
Location BM
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
1999 to date
-
1999 to date
Fairly Stable.
No overbank flow.
Records Fair. Stage-discharge relation defined by 29 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
104.14
103.92
104.49
104.28
106.24
105.26
105.22
104.59
104.41
104.32
104.25
104.06
2
104.14
103.90
105.46
104.26
105.49
105.20
105.15
104.61
104.40
104.31
104.25
104.05
3
104.15
103.94
104.85
104.93
105.10
105.24
105.25
104.59
104.42
104.33
104.23
104.04
4
104.15
103.98
104.77
104.71
104.96
105.20
105.31
104.59
104.43
104.37
104.23
104.04
5
104.15
104.04
105.33
104.61
104.84
105.10
105.15
104.58
104.42
104.36
104.21
104.03
6
104.14
104.84
105.23
104.48
104.73
105.86
105.20
104.57
104.44
104.34
104.25
104.02
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Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
104.14
104.64
105.43
104.52
105.00
105.47
105.15
104.54
104.43
104.32
104.23
104.01
8
104.14
104.61
104.77
104.47
104.93
106.03
105.12
104.56
104.42
104.31
104.23
104.00
9
104.13
104.63
104.74
105.50
105.65
106.59
105.09
104.57
104.43
104.30
104.21
103.99
10
104.15
104.62
104.68
105.62
104.89
105.61
104.97
104.80
104.41
104.29
104.21
103.98
11
104.13
104.58
104.64
104.79
105.04
105.54
105.09
104.72
104.40
104.32
104.19
104.10
12
104.13
104.68
104.59
104.65
105.54
106.12
105.14
104.68
104.39
104.30
104.18
104.07
13
104.13
104.57
104.47
104.54
105.10
105.57
104.99
104.63
104.38
104.29
104.18
104.06
14
104.12
104.53
104.54
104.58
104.90
105.20
104.99
104.61
104.40
104.31
104.19
104.05
15
104.12
104.67
104.47
105.26
105.27
105.44
104.97
104.57
104.39
104.30
104.18
104.04
16
104.12
104.62
104.41
105.14
106.79
106.05
104.91
104.54
104.38
104.29
104.17
104.03
17
104.12
104.59
104.51
105.22
105.42
105.71
104.87
104.53
104.39
104.27
104.16
104.02
18
104.11
104.61
104.44
104.84
105.25
105.15
104.83
104.52
104.40
104.26
104.15
104.01
19
104.11
104.55
104.58
105.23
106.07
105.25
104.76
104.54
104.39
104.26
104.14
104.00
20
104.11
104.52
104.45
105.23
107.55
105.12
104.73
104.56
104.38
104.24
104.13
104.03
21
104.10
104.45
104.43
105.25
105.78
105.51
104.73
104.55
104.37
104.27
104.12
104.02
22
104.10
104.24
104.39
105.15
105.79
105.49
104.72
104.54
104.37
104.26
104.11
104.01
23
104.10
104.21
104.48
105.01
105.24
105.64
104.78
104.53
104.38
104.25
104.09
104.00
24
104.10
104.18
104.40
105.10
105.76
105.81
104.76
104.52
104.37
104.26
104.08
103.99
25
104.10
104.16
104.40
104.85
105.15
105.52
104.73
104.51
104.37
104.27
104.10
103.98
26
104.10
104.26
104.32
104.96
105.23
105.77
104.70
104.50
104.36
104.28
104.09
103.97
27
104.10
104.26
104.30
104.75
105.27
105.78
104.66
104.49
104.34
104.32
104.09
103.97
28
104.11
104.24
104.31
105.26
105.15
105.76
104.63
104.48
104.34
104.32
104.09
103.96
29
104.11
104.21
104.90
104.80
105.60
105.95
104.64
104.47
104.34
104.32
104.09
103.96
30
104.11
104.31
104.52
104.77
105.28
105.32
104.61
104.44
104.33
104.33
103.96
31
104.32
105.25
105.25
104.59
104.32
104.31
103.96
----------
--------------
Mean
104.12
104.38
104.64
104.90
105.43
105.58
104.92
104.56
104.39
104.30
104.17
104.01
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Max
104.15
104.84
105.46
105.62
107.55
106.59
105.31
104.80
104.44
104.37
104.25
104.10
107.55
Min
104.10
103.90
104.30
104.26
104.73
105.10
104.59
104.44
104.32
104.24
104.08
103.96
103.90
107.95
m. (MSL.) ,
104.35
m. (MSL.) ,
River Bed 104.01
m. (MSL)
109.55
m. (MSL.) ,
110.51
m. (MSL.) ,
Drainage Area 174 Square Kilometers
at 09.00 Hours , on Aug 20 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation