Basic HTML Version
528
Location : on left bank near Wat Ban Pa Kha.
203
sq.km.
Drainge Area
WATER YEAR : 2012
BANG PAKONG RIVER BASIN
Lower Khlong Ban Na at Ban Pa Kha , Nakhon Nayok (Ny.3)
Lat 14 - 17 - 04 N Long 101 - 04 - 28 E
Amphoe
Ban Na
Changwat
Nakhon Nayok
Ban
Pa Kha
Water - stage recorder
+6.330 m. (MSL.)
B.M.-H.D.
About 10 meters from the top staff gage.
Elevation
Recording
Arithmetic mean of 24 readings
1977 to date
Rating Operation
Period of Available Gage Records
Location BM
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+12.695 m. (MSL.)
Bench Mark
Type of Gage
1977 - 1978 , 1980, 1988 to date
-
1977 - 1978 , 1980, 1988 to date
Fairly stable.
No overbank flow.
Records good. Flow effected by the local weir.
Stage-discharge relation defined by 20 discharge measurements made in 2012.
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
7.03
6.68
6.68
7.13
8.01
9.45
8.86
7.96
7.84
7.15
7.03
7.03
2
7.03
6.68
6.68
7.14
7.85
9.00
8.88
7.85
7.63
7.13
7.03
7.03
3
7.03
6.68
6.68
7.30
7.78
9.17
8.99
7.83
7.71
7.13
7.03
7.03
4
7.03
6.68
7.25
7.85
7.69
9.20
8.61
7.76
7.69
7.13
7.03
7.03
5
7.03
6.68
7.74
9.75
7.73
8.91
8.39
7.73
7.68
7.13
7.03
7.03
6
7.03
6.68
8.00
9.61
7.70
8.69
8.43
7.63
7.66
7.13
7.03
7.03
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Gage Height in Meter (MSL.) Water Year April 1, 2012 to March 31, 2013
7
7.03
6.68
7.71
8.56
7.73
9.38
8.22
7.59
7.58
7.13
7.03
7.03
8
7.03
6.68
7.59
8.30
7.61
9.72
8.14
7.56
7.46
7.13
7.03
7.03
9
7.03
6.68
7.48
8.10
7.55
9.23
8.21
7.54
7.43
7.13
7.03
7.03
10
7.03
6.68
7.46
8.01
7.48
8.79
8.34
7.54
7.48
7.13
7.03
7.03
11
7.03
6.68
7.35
7.99
7.48
8.74
8.55
7.59
7.35
7.13
7.03
7.03
12
7.03
6.68
7.32
7.95
7.48
8.74
8.29
7.65
7.33
7.13
7.03
7.03
13
7.03
6.68
7.28
7.86
7.50
8.61
8.19
7.70
7.33
7.13
7.03
7.03
14
7.03
6.68
7.23
7.76
7.48
8.35
8.11
7.68
7.33
7.13
7.03
7.03
15
7.03
6.68
7.23
7.65
7.45
9.24
8.41
7.64
7.33
7.13
7.03
7.03
16
7.03
6.68
7.23
7.73
7.39
9.73
8.81
7.63
7.33
7.13
7.03
7.03
17
7.03
6.68
7.23
8.06
7.45
10.81
8.49
7.57
7.28
7.13
7.03
7.03
18
7.03
6.68
7.23
7.90
7.54
10.99
8.19
7.50
7.31
7.13
7.03
7.03
19
7.03
6.68
7.23
7.89
7.62
12.03
7.98
7.48
7.33
7.13
7.03
7.03
20
7.03
6.68
7.18
7.80
8.29
11.01
7.96
7.49
7.33
7.13
7.03
7.03
21
7.03
6.68
7.17
7.72
8.73
9.99
7.92
7.59
7.33
7.12
7.03
7.03
22
7.03
6.68
7.15
7.68
8.33
9.38
7.86
7.62
7.38
7.02
7.03
7.03
23
7.03
6.68
7.13
7.47
8.18
9.11
7.78
7.53
7.38
7.03
7.03
7.03
24
7.03
6.68
7.13
7.42
8.17
8.85
7.82
7.54
7.38
7.03
7.03
7.03
25
7.03
6.68
7.13
7.40
8.28
8.56
9.01
8.21
7.31
7.03
7.03
7.03
26
7.03
6.68
7.16
7.45
8.53
8.45
8.89
8.79
7.23
7.03
7.03
7.03
27
7.03
6.68
7.18
7.67
9.92
8.76
8.34
8.97
7.19
7.03
7.03
7.03
28
7.03
6.68
7.18
8.09
10.15
9.30
8.16
8.73
7.18
7.03
7.03
7.03
29
7.03
6.68
7.15
8.18
10.77
9.48
7.93
8.32
7.18
7.03
7.03
30
7.03
6.68
7.13
8.64
10.71
9.30
7.91
8.08
7.18
7.03
7.03
31
6.68
8.21
9.86
8.00
7.16
7.03
7.03
----------
--------------
Mean
7.03
6.68
7.24
7.94
8.21
9.37
8.31
7.81
7.40
7.10
7.03
7.03
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Max
7.03
6.68
8.00
9.75
10.77
12.03
9.01
8.97
7.84
7.15
7.03
7.03
12.03
Min
7.03
6.68
6.68
7.13
7.39
8.35
7.78
7.48
7.16
7.02
7.03
7.03
6.68
12.23
m. (MSL.) ,
6.33
m. (MSL.) ,
River Bed 6.43
m. (MSL.)
13.61
m. (MSL.) ,
13.64
m. (MSL.) ,
Drainage Area 203 Square Kilometers
at 06.00 Hours , on Sep 19 , 2012
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation