Basic HTML Version
456
Location : on left bank about 300 meters downstream, Phatthana Phak Nua 2 bridge.
3,459
sq.km.
Drainge Area
WATER YEAR : 2011
PASAK RIVER BASIN
Pasak River at Mueang , Phetchabun (S.4B)
Lat 16 - 25 - 16 N Long 101 - 10 - 08 E
Amphoe
Mueang
Changwat
Phetchabun
Ban
Nai Mueang
Staff gage
+106.500 m. (MSL.)
B.M.-H.D.
On left bank in front of town - hall Changwat Phetchabun.
Elevation
5-time daily readings at 06.00, 09.00, 12.00, 15.00 and 18.00 hours.
Arithmetic means of 5 readings
1996 to date
Rating Operation
Period of Available Gage Records
Location BM
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+116.106 m. (MSL.)
Bench Mark
Type of Gage
1996 to date
-
1996 to date
Stable.
Overbank flow starts at elevation +115.460 m.(MSL.), records are channel flow only.
Records good. Flow effected by the local weir about 400 meters downstream from the gage site.
Stage-discharge relation defined by 24 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
109.66
109.78
112.56
111.92
111.68
113.97
115.75
110.89
110.24
109.50
109.98
109.24
2
109.75
110.66
112.40
111.40
113.80
113.98
115.74
110.86
110.14
109.47
109.99
109.27
3
109.92
110.55
111.99
112.03
114.34
113.47
115.70
110.85
110.12
109.43
110.01
109.30
4
109.89
110.34
111.73
112.68
114.68
113.93
115.64
110.84
110.12
109.40
110.07
109.28
5
109.85
110.33
111.48
111.58
114.88
113.96
115.57
110.77
110.15
109.40
110.16
109.29
6
109.79
110.28
111.27
111.15
114.99
113.26
115.53
110.71
110.10
109.38
110.19
109.29
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Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
109.73
110.25
111.29
111.06
115.04
113.89
115.54
110.70
110.13
109.38
110.22
109.28
8
109.71
110.52
111.30
110.75
114.67
114.48
115.40
110.69
110.05
109.36
110.20
109.27
9
109.73
110.68
111.15
110.66
113.80
114.90
115.00
110.74
110.03
109.35
110.15
109.27
10
109.70
110.50
110.97
110.36
113.01
115.35
114.48
110.72
110.10
109.34
110.10
109.28
11
109.71
110.32
110.88
110.25
112.41
115.59
113.57
110.89
110.10
109.30
110.04
109.29
12
109.78
110.23
110.54
110.32
112.28
115.71
113.03
110.80
110.06
109.25
109.98
109.32
13
109.82
110.17
110.51
110.38
112.78
115.85
112.76
110.93
110.01
109.26
109.89
109.39
14
109.77
110.15
110.70
110.48
112.80
115.92
113.49
110.80
109.95
109.26
109.84
110.38
15
109.72
110.18
110.71
110.56
112.54
115.95
113.71
110.71
109.93
109.26
109.76
110.26
16
109.68
110.23
110.47
111.48
112.32
116.18
113.75
110.70
109.90
109.26
109.69
110.23
17
109.63
110.24
110.29
112.26
112.18
116.11
113.70
110.69
109.90
109.26
109.64
110.17
18
109.59
110.50
110.47
112.15
113.03
116.01
113.37
110.60
109.89
109.26
109.59
110.14
19
109.57
111.10
110.34
111.26
113.32
115.93
112.91
110.59
109.89
109.55
109.55
110.11
20
109.55
111.60
110.42
111.28
113.67
115.83
112.49
110.51
109.95
109.61
109.52
110.13
21
109.52
112.00
110.59
112.27
113.91
115.75
112.14
110.45
110.18
109.78
109.50
110.16
22
109.50
111.57
110.49
111.56
114.51
115.65
111.93
110.41
110.19
109.92
109.50
110.16
23
109.49
111.25
110.61
111.39
114.86
115.61
111.68
110.53
110.20
109.99
109.50
110.16
24
109.49
110.94
110.93
111.30
115.09
115.57
111.45
110.44
110.15
110.20
109.50
110.13
25
109.48
110.56
110.80
111.08
115.23
115.58
111.34
110.42
109.97
110.25
109.50
110.05
26
109.48
110.65
110.74
111.35
115.00
115.58
111.19
110.40
109.86
110.20
109.50
109.99
27
109.47
111.15
110.72
111.31
114.14
115.64
111.09
110.37
109.75
110.13
109.49
109.90
28
109.48
112.00
110.85
111.04
113.34
115.80
111.00
110.33
109.70
110.08
109.49
109.80
29
109.50
112.65
111.20
111.03
112.95
115.81
110.90
110.33
109.60
110.06
109.49
109.79
30
109.50
112.95
111.44
111.05
112.79
115.76
110.88
110.31
109.55
110.03
109.72
31
113.10
110.88
113.22
110.93
109.54
109.98
109.60
----------
--------------
Mean
109.65
110.88
110.99
111.23
113.65
115.23
113.28
110.63
109.98
109.61
109.79
109.73
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Max
109.92
113.10
112.56
112.68
115.23
116.18
115.75
110.93
110.24
110.25
110.22
110.38
116.18
Min
109.47
109.78
110.29
110.25
111.68
113.26
110.88
110.31
109.54
109.25
109.49
109.24
109.24
116.19
m. (MSL.) ,
106.50
m. (MSL.) ,
River Bed 109.35
m. (MSL)
116.69
m. (MSL.) ,
115.45
m. (MSL.) ,
Drainage Area 3459 Square Kilometers
at 12.00 Hours , on Sep 16 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation