Basic HTML Version
546
Location : on right bank about 700 meters upstream from Ny.1
521
sq.km.
Amphoe
Mueang
Changwat
Nakhon Nayok
Ban
Khao Nang Buat
WATER YEAR : 2011
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
Staff gage
+0.000 m. (MSL.)
B.M.-H.D.
On right bank about 200 meters from the staff gage.
Elevation
5-time daily readings at 06.00, 09.00, 12.00, 15.00 and 18.00 hours.
Arithmetic means of 5 readings
1973 to date
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+8.758 m. (MSL.)
Type of Gage
Bench Mark
Location BM
Rating Operation
Period of Available Gage Records
1973 - 1980 , 1991 to date
-
1973 - 1980 , 1991 to date
Fairly stable.
No overbank flow.
Records good. Stage-discharge relation defined by 24 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
4.27
4.72
6.38
5.41
7.66
5.48
6.66
4.32
3.87
4.80
4.43
4.28
2
4.32
4.85
5.39
5.60
7.36
6.29
6.31
4.35
3.84
4.76
4.50
4.28
3
4.35
4.42
4.84
5.38
7.11
5.61
6.64
4.35
4.02
4.70
4.55
4.26
4
4.37
4.13
4.70
5.87
7.06
6.56
6.61
4.32
4.51
4.79
4.66
4.25
5
4.41
4.15
4.61
5.44
7.25
5.90
5.98
4.26
4.84
4.74
4.52
4.25
6
4.43
4.02
5.29
5.47
7.00
6.03
6.88
4.16
4.78
4.73
4.52
4.29
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
4.45
3.89
4.92
5.15
6.82
5.57
5.98
4.10
4.23
4.69
4.52
4.29
8
4.40
4.10
4.74
5.69
6.42
5.37
5.53
4.09
3.90
4.65
4.48
4.26
9
4.34
3.92
4.95
5.74
5.70
5.80
5.59
4.11
3.74
4.62
4.41
4.26
10
4.32
3.99
5.96
5.82
5.76
7.84
5.67
4.14
3.92
4.58
4.59
4.30
11
4.30
4.35
5.78
6.34
5.74
7.30
5.87
4.12
4.40
4.36
4.47
4.41
12
4.31
4.18
5.17
5.42
5.65
8.95
5.81
4.11
4.66
4.80
4.40
4.30
13
4.41
4.51
5.37
5.57
5.86
7.70
5.78
4.10
4.74
4.70
4.47
4.23
14
4.48
4.66
5.08
5.56
7.08
6.67
5.66
4.10
4.07
4.34
4.44
4.20
15
4.44
4.58
4.78
6.45
6.20
5.98
5.93
4.09
3.78
4.38
4.39
4.51
16
4.38
4.73
4.72
5.40
6.14
5.78
5.76
4.09
3.70
4.40
4.34
4.40
17
4.33
4.56
4.80
6.12
6.80
5.87
5.52
4.07
4.51
4.42
4.41
4.28
18
4.30
5.18
5.08
6.11
7.36
6.60
4.97
4.04
4.84
4.47
4.42
4.25
19
4.28
4.63
4.94
6.37
7.14
5.98
4.81
3.96
4.69
4.46
4.40
4.21
20
4.30
4.64
5.44
7.09
6.52
7.35
4.77
3.94
4.11
4.27
4.43
4.24
21
4.32
4.61
5.10
7.19
6.28
7.18
4.65
3.91
4.63
4.46
4.39
4.21
22
4.32
4.49
5.08
6.85
6.73
6.51
4.66
3.93
4.81
4.40
4.36
4.18
23
4.30
4.31
4.98
6.40
6.55
6.46
4.56
3.92
4.67
4.41
4.32
4.18
24
4.46
4.16
4.81
7.19
6.91
8.77
4.54
4.51
4.10
4.45
4.27
4.23
25
4.40
4.08
4.90
6.46
6.26
7.82
4.52
4.78
4.48
4.49
4.38
4.28
26
4.55
4.11
4.88
8.12
5.31
7.27
4.40
4.44
4.57
4.30
4.48
4.25
27
4.27
4.11
6.86
7.09
5.25
7.52
4.42
4.29
4.68
4.41
4.45
4.14
28
4.00
4.41
5.65
7.34
5.18
7.43
4.60
4.18
4.78
4.54
4.40
4.13
29
3.88
4.79
5.38
7.77
5.74
7.20
4.65
4.06
4.80
4.45
4.28
4.06
30
4.27
5.93
6.43
6.85
6.08
7.49
4.56
3.93
4.78
4.46
4.06
31
4.56
6.34
5.70
4.38
4.79
4.42
4.05
----------
--------------
Mean
4.33
4.44
5.23
6.25
6.41
6.74
5.38
4.16
4.39
4.53
4.44
4.24
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Max
4.55
5.93
6.86
8.12
7.66
8.95
6.88
4.78
4.84
4.80
4.66
4.51
8.95
Min
3.88
3.89
4.61
5.15
5.18
5.37
4.38
3.91
3.70
4.27
4.27
4.05
3.70
9.32
m. (MSL.) ,
0.00
m. (MSL.) ,
River Bed 2.88
m. (MSL)
11.52
m. (MSL.) ,
11.55
m. (MSL.) ,
Drainage Area 521 Square Kilometers
at 06.00 Hours , on Sep 24 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation