Basic HTML Version
526
Location : on right bank about 700 meters upstream from Ny.1
521
sq.km.
WATER YEAR : 2012
BANG PAKONG RIVER BASIN
Nakhon Nayok River at Ban Khao Nang Buat , Nakhon Nayok (Ny.1B)
Lat 14 - 14 - 38 N Long 101 - 16 - 14 E
Drainge Area
Amphoe
Mueang
Changwat
Nakhon Nayok
Ban
Khao Nang Buat
Staff gage
+0.000 m. (MSL.)
B.M.-H.D.
On right bank about 200 meters from the staff gage.
Elevation
3-time daily readings at 06.00, 12.00 and 18.00 hours.
Arithmetic mean of 3 readings
1973 to date
Rating Operation
Period of Available Gage Records
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+8.758 m. (MSL.)
Type of Gage
Bench Mark
Location BM
1973 - 1980 , 1991 to date
-
1973 - 1980 , 1991 to date
Rather unstable.
No overbank flow.
Records good. Stage-discharge relation defined by 21 discharge measurements made in 2012.
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
4.00
4.38
3.99
4.14
5.19
5.33
4.72
4.20
4.60
4.48
4.49
4.07
2
3.94
4.11
4.83
4.07
5.03
5.30
4.72
4.21
4.60
4.35
4.48
4.05
3
3.90
3.70
4.86
4.66
4.87
4.96
4.71
4.18
4.58
4.16
4.43
4.10
4
3.88
3.70
5.07
4.89
4.90
5.02
4.90
4.13
4.53
4.27
4.49
4.48
5
3.81
3.90
4.95
5.78
4.87
4.80
4.64
4.13
4.45
4.36
4.41
4.42
6
3.85
4.29
5.54
5.61
4.82
4.89
4.61
4.12
4.40
4.30
4.46
4.26
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Gage Height in Meter (MSL.) Water Year April 1, 2012 to March 31, 2013
7
3.96
4.36
4.45
4.69
4.71
5.39
4.63
4.10
4.37
4.18
4.58
4.27
8
4.42
4.43
4.14
4.69
4.59
5.87
4.54
4.11
4.32
4.19
4.37
4.25
9
4.58
4.38
4.24
4.45
4.58
5.13
4.62
4.07
4.31
4.46
4.27
4.11
10
4.72
4.08
4.53
4.38
4.61
5.02
4.52
4.04
4.31
4.56
4.30
4.21
11
4.54
3.75
4.64
4.64
4.65
5.04
4.41
4.04
4.30
4.57
4.39
4.20
12
4.51
3.79
4.31
4.54
4.61
4.97
4.51
4.15
4.32
4.59
4.35
4.06
13
4.41
4.22
4.19
4.50
5.01
5.20
4.60
4.16
4.27
4.57
4.27
3.98
14
4.49
4.12
4.02
4.52
4.86
4.85
4.59
4.14
4.19
4.47
4.27
4.00
15
4.63
3.65
3.95
5.11
4.86
5.01
4.61
4.13
4.13
4.62
4.13
4.13
16
4.51
3.63
4.13
4.78
4.78
5.28
4.75
4.10
4.12
4.68
4.25
3.92
17
4.52
3.67
4.44
4.28
4.55
5.99
4.51
4.09
4.12
4.44
4.33
3.91
18
4.30
3.79
4.61
4.31
4.45
5.50
4.53
4.08
4.35
4.39
4.37
3.99
19
4.23
3.81
4.13
4.20
4.94
5.56
4.65
4.07
4.53
4.47
4.39
4.06
20
4.20
4.17
3.97
4.15
5.35
5.38
4.68
4.08
4.57
4.59
4.39
4.20
21
4.20
4.06
3.92
4.19
5.21
5.88
4.53
4.14
4.58
4.53
4.18
4.22
22
4.18
3.66
4.03
4.73
4.94
5.17
4.56
4.19
4.54
4.61
4.09
3.91
23
4.18
3.62
4.29
4.68
4.66
5.00
4.30
4.16
4.51
4.60
4.16
4.29
24
4.17
3.86
4.36
4.02
4.86
4.85
4.26
4.18
4.51
4.55
4.08
4.35
25
4.16
5.28
4.44
4.05
4.77
4.75
4.96
4.59
4.53
4.55
4.14
4.35
26
4.15
4.31
4.09
4.18
6.02
4.61
4.31
4.72
4.51
4.56
4.12
4.24
27
4.40
4.36
4.01
4.79
5.76
4.96
4.51
4.78
4.44
4.53
4.04
4.25
28
4.47
4.35
4.00
4.94
6.08
4.86
4.61
4.62
4.40
4.54
4.13
4.07
29
4.46
4.07
3.94
5.69
7.83
5.21
4.49
4.65
4.40
4.47
4.46
30
4.52
3.92
4.02
5.87
6.55
4.87
4.61
4.57
4.45
4.49
4.51
31
4.01
5.11
5.78
4.29
4.47
4.55
4.57
----------
--------------
Mean
4.28
4.05
4.34
4.67
5.12
5.16
4.58
4.23
4.41
4.47
4.30
4.19
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Max
4.72
5.28
5.54
5.87
7.83
5.99
4.96
4.78
4.60
4.68
4.58
4.57
7.83
Min
3.81
3.62
3.92
4.02
4.45
4.61
4.26
4.04
4.12
4.16
4.04
3.91
3.62
8.20
m. (MSL.) ,
0.00
m. (MSL.) ,
River Bed 2.76
m. (MSL.)
11.53
m. (MSL.) ,
11.54
m. (MSL.) ,
Drainage Area 521 Square Kilometers
at 09.00 Hours , on Aug 29 , 2012
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation