Basic HTML Version
476
Location : on left bank at the bridge.
7,233
sq.km.
WATER YEAR : 2011
PASAK RIVER BASIN
Pasak River at Ban Bo Rang , Phetchabun (S.42)
Lat 15 - 34 - 35 N Long 101 - 05 - 28 E
Drainge Area
Amphoe
Wichian Buri
Changwat
Phetchabun
Ban
Bo Rang
Staff gage
+51.796 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
2005 to date
Rating Operation
Period of Available Gage Records
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+63.900 m. (MSL.)
Type of Gage
Bench Mark
Location BM
2005 to date
-
2005 to date
Fairly stable.
Overbank flow starts at elevation +62.910 m.(MSL.) and is including overbank flow.
Records good. Stage-discharge relation defined by 22 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
51.18
52.31
60.28
57.77
60.99
63.00
63.64
57.02
56.08
54.28
52.75
55.76
2
50.95
52.33
60.56
58.04
60.72
63.00
63.56
56.91
55.84
54.26
52.79
55.73
3
51.13
52.34
61.13
58.74
60.82
63.05
63.49
56.85
56.06
54.26
52.82
55.68
4
50.96
52.35
61.63
59.44
61.32
63.09
63.47
56.78
56.01
54.25
52.77
55.61
5
50.91
56.89
62.37
59.90
61.52
63.09
63.43
56.74
55.88
54.21
52.82
55.50
6
51.00
57.00
62.72
60.04
61.64
63.09
63.41
56.68
55.85
54.14
52.85
55.39
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Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
51.02
57.11
62.62
60.00
61.71
63.04
63.37
56.63
55.87
54.08
52.70
55.29
8
51.06
57.55
62.44
59.83
61.73
62.98
63.31
56.60
55.86
54.03
52.68
55.17
9
51.05
57.95
62.35
59.50
61.73
62.96
63.25
56.58
55.85
54.00
52.69
55.07
10
51.04
57.86
62.27
58.95
61.83
62.97
63.19
56.58
55.83
53.98
53.69
55.01
11
51.02
57.36
62.18
57.96
61.94
62.99
63.14
56.82
55.74
53.95
56.02
54.93
12
51.13
56.99
61.90
57.06
62.08
63.09
63.09
56.98
55.64
53.90
56.00
54.86
13
51.46
56.96
61.04
56.95
62.20
63.22
63.06
56.90
55.52
53.80
55.99
54.82
14
51.76
57.08
59.84
56.78
62.23
63.34
63.06
57.01
55.41
53.72
55.98
54.80
15
51.94
56.98
58.57
56.83
62.24
63.35
62.98
56.85
55.29
53.63
55.97
54.80
16
52.06
56.98
57.25
57.04
62.20
63.45
62.90
56.77
55.26
53.63
55.97
54.80
17
52.05
56.99
56.86
57.40
62.19
63.75
62.81
56.64
55.16
53.59
55.97
54.80
18
52.05
57.20
56.62
58.66
62.24
63.92
62.70
56.54
55.00
53.53
55.96
54.80
19
52.05
56.97
56.51
59.57
62.20
63.85
62.48
56.47
54.95
53.44
55.94
54.80
20
52.09
56.57
56.53
59.93
62.30
63.85
62.23
56.44
54.91
53.40
55.33
54.76
21
51.80
56.64
56.84
60.00
62.55
63.84
61.94
56.38
54.86
53.40
55.85
54.94
22
51.81
56.74
57.05
60.07
62.84
63.80
61.64
56.34
54.81
53.39
55.76
54.90
23
51.82
56.99
57.07
60.15
63.01
63.81
61.37
56.26
54.80
53.07
55.75
54.62
24
51.87
57.09
56.94
60.39
63.00
63.79
61.08
56.27
54.77
53.00
55.83
54.75
25
52.00
56.93
56.90
60.62
62.93
63.70
60.75
56.25
54.66
53.05
55.81
54.74
26
52.13
56.61
56.83
61.00
62.86
63.60
60.27
56.26
54.58
53.06
55.80
55.72
27
52.18
56.47
56.57
61.66
62.84
63.58
59.53
56.22
54.49
53.04
55.79
55.65
28
52.12
56.58
56.59
62.09
62.89
63.60
58.81
56.19
54.44
53.02
55.78
55.56
29
52.15
57.82
56.79
62.13
62.94
63.72
58.01
56.20
54.36
53.00
55.77
55.47
30
52.15
58.91
57.12
61.95
62.98
63.73
57.48
56.16
54.32
52.93
55.36
31
59.91
61.53
63.00
57.15
54.29
52.83
55.29
----------
--------------
Mean
51.60
56.60
59.15
59.42
62.18
63.41
61.95
56.58
55.24
53.61
54.82
55.14
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Max
52.18
59.91
62.72
62.13
63.01
63.92
63.64
57.02
56.08
54.28
56.02
55.76
63.92
Min
50.91
52.31
56.51
56.78
60.72
62.96
57.15
56.16
54.29
52.83
52.68
54.62
50.91
63.94
m. (MSL.) ,
51.80
m. (MSL.) ,
River Bed 52.50
m. (MSL)
63.03
m. (MSL.) ,
62.90
m. (MSL.) ,
Drainage Area 7233 Square Kilometers
at 06.00 Hours , on Sep 18 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation