Basic HTML Version
466
Location : on right bank at the bridge.
1,263
sq.km.
WATER YEAR : 2011
PASAK RIVER BASIN
Lam Sonthi at Ban Tha Ruak , Lop Buri (S.14)
Lat 15 - 13 - 24 N Long 101 - 16 - 52 E
Drainge Area
Amphoe
Chai Badan
Changwat
Lop Buri
Ban
Tha Ruak
Water - stage recorder
+0.000 m. (MSL.)
B.M.-H.D.
On right bank at the abutment of the bridge.
Elevation
Recording
Arithmetic means of 24 readings
2005 to date
Rating Operation
Period of Available Gage Records
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+63.824 m. (MSL.)
Type of Gage
Bench Mark
Location BM
2005 to date
-
2005 to date
Fairly stable.
No overbank flow.
Records good. Stage-discharge relation defined by 34 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
54.08
55.28
56.78
54.08
54.65
54.70
58.03
54.62
54.71
54.39
53.97
54.10
2
54.08
55.38
55.68
55.70
54.86
54.63
57.79
54.47
54.68
54.41
53.97
54.27
3
54.08
54.55
55.08
54.98
55.42
54.59
57.79
54.50
54.67
54.41
53.97
54.49
4
54.08
54.38
54.18
54.54
55.58
54.40
58.51
54.59
54.67
54.40
53.97
54.50
5
54.08
54.28
55.28
54.04
55.38
54.37
57.99
54.50
54.65
54.35
53.97
54.47
6
54.08
54.28
58.45
54.04
55.28
54.86
58.67
54.61
54.70
54.30
53.97
54.53
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Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
54.08
54.28
57.05
54.04
54.07
55.17
58.88
54.68
54.54
54.27
53.96
54.60
8
54.08
54.18
55.28
54.03
54.28
54.56
57.16
54.91
54.62
54.24
53.96
54.59
9
54.08
54.18
55.08
54.03
54.77
56.70
56.63
55.01
54.62
54.23
53.98
54.60
10
54.08
54.18
54.48
54.05
56.22
58.29
55.75
55.09
54.61
54.21
53.99
54.69
11
54.08
54.08
54.48
54.09
56.72
60.37
55.73
55.10
54.57
54.18
54.02
54.94
12
54.08
54.08
54.48
54.02
56.44
61.70
56.55
54.97
54.46
54.03
54.34
55.01
13
54.08
54.08
54.48
54.01
56.32
61.16
56.57
54.83
54.40
54.02
54.42
54.06
14
54.08
53.98
54.28
54.01
56.50
58.48
57.65
54.80
54.45
54.02
54.42
53.90
15
54.08
53.98
54.08
54.01
56.61
58.07
57.33
54.86
54.53
54.02
54.35
54.03
16
54.08
53.98
54.08
54.02
57.17
58.25
57.36
54.81
54.57
54.01
54.11
54.08
17
54.08
53.98
54.08
54.02
57.71
58.88
57.04
54.76
54.58
54.01
53.97
54.69
18
54.03
54.01
54.08
54.01
59.29
59.88
56.63
54.60
54.58
54.01
54.11
54.51
19
54.03
55.18
54.08
54.02
57.51
58.35
56.28
54.57
54.53
54.00
54.33
54.58
20
54.03
54.98
54.08
54.02
56.99
56.72
55.12
54.61
54.53
54.01
54.34
54.52
21
54.03
54.28
54.08
54.12
56.72
58.37
55.27
54.80
54.57
54.02
53.96
54.44
22
53.98
54.18
54.08
54.55
56.98
57.41
55.23
54.78
54.57
54.02
53.96
54.16
23
53.98
54.08
54.08
54.95
56.53
56.50
55.23
54.65
54.58
54.03
53.96
54.09
24
53.98
54.08
54.08
55.13
56.53
57.25
55.09
54.65
54.69
54.04
53.96
54.17
25
53.98
53.98
54.08
54.59
56.45
57.72
55.02
54.70
54.72
54.02
53.97
53.99
26
53.98
54.11
54.08
55.97
56.36
57.20
55.01
54.70
54.63
53.99
53.97
53.98
27
54.25
54.91
54.08
56.00
56.34
56.71
54.95
54.75
54.52
53.99
53.97
53.97
28
54.13
55.55
54.08
55.60
55.29
60.30
54.82
54.66
54.30
53.99
53.98
53.97
29
54.08
58.75
54.08
55.40
55.26
60.48
54.82
54.71
54.21
53.99
53.98
53.97
30
54.08
57.31
54.08
54.10
55.92
59.26
55.01
54.71
54.25
53.97
53.97
31
57.98
54.11
55.47
54.79
54.24
53.96
53.90
----------
--------------
Mean
54.06
54.73
54.68
54.46
56.12
57.51
56.41
54.73
54.55
54.11
54.06
54.32
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Max
54.25
58.75
58.45
56.00
59.29
61.70
58.88
55.10
54.72
54.41
54.42
55.01
61.70
Min
53.98
53.98
54.08
54.01
54.07
54.37
54.79
54.47
54.21
53.96
53.96
53.90
53.90
61.84
m. (MSL.) ,
0.00
m. (MSL.) ,
River Bed 53.80
m. (MSL)
63.82
m. (MSL.) ,
63.84
m. (MSL.) ,
Drainage Area 1263 Square Kilometers
at 19.00 Hours , on Sep 12 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation