502
Location : on right bank at the bridge on highway.
1,844
sq.km.
WATER YEAR : 2012
MAE KLONG RIVER BASIN
Lam Phachi at Ban Dan Thaptako , Ratchaburi (K.61)
Lat 13 - 41 - 28 N Long 99 - 27 - 08 E
Amphoe
Chom Bung
Changwat
Ratchaburi
Ban
Dan Thaptako
Drainge Area
Water - stage recorder
+64.630 m. (MSL.)
B.M.-H.D.
Near the automatic gage building.
Elevation
Recording
Arithmetic mean of 24 readings
2004 to date
+71.913 m. (MSL.)
Rating Operation
Period of Available Gage Records
Bench Mark
Location BM
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
Type of Gage
2004 to date
-
2004 to date
Stable.
No overbank flow.
Records good. Stage-discharge relation defined by 26 discharge measurements made in 2012
Overbank Flow Conditions
General Description
Period of Rating
Rated by Flot
Rated by Current Meter
Stability of Channel Regimes
Date
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Annual
----------
-----------------
1
65.13
65.33
65.50
65.52
66.00
65.74
66.22
66.39
65.93
65.79
65.76
65.70
2
65.13
65.34
65.50
65.52
65.85
65.73
66.08
66.10
65.92
65.79
65.75
65.70
3
65.13
65.35
65.48
65.53
65.77
65.73
65.99
66.02
65.91
65.79
65.75
65.71
4
65.14
65.32
65.46
65.54
65.73
65.74
65.95
65.99
65.88
65.79
65.75
65.71
5
65.20
65.36
65.47
65.52
65.67
65.73
65.92
65.96
65.87
65.78
65.75
65.71
6
65.41
65.41
65.47
65.51
65.63
65.91
65.91
65.92
65.87
65.78
65.74
65.72
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (MSL.) Water Year April 1, 2012 to March 31, 2013
7
65.51
65.48
65.46
65.50
65.61
65.83
65.87
65.90
65.86
65.78
65.74
65.72
8
65.50
65.48
65.44
65.48
65.58
65.83
66.39
65.89
65.86
65.78
65.74
65.70
9
65.52
65.47
65.42
65.48
65.57
65.83
68.55
65.89
65.86
65.79
65.73
65.70
10
65.48
65.47
65.44
65.52
65.58
65.80
67.93
65.90
65.86
65.79
65.73
65.70
11
65.43
65.44
65.43
65.50
65.61
65.80
67.18
65.89
65.86
65.78
65.73
65.70
12
65.39
65.40
65.42
65.44
65.61
65.79
66.84
65.93
65.86
65.77
65.73
65.70
13
65.37
65.37
65.40
65.38
65.58
65.80
66.54
66.22
65.86
65.77
65.73
65.70
14
65.36
65.35
65.39
65.38
65.56
65.80
66.38
66.02
65.86
65.77
65.72
65.70
15
65.36
65.34
65.37
65.37
65.54
65.85
66.29
65.90
65.86
65.77
65.69
65.70
16
65.38
65.33
65.38
65.36
65.55
65.99
66.24
65.87
65.86
65.77
65.71
65.70
17
65.38
65.62
65.38
65.36
65.52
66.01
66.18
65.87
65.84
65.77
65.72
65.68
18
65.48
65.83
65.45
65.36
65.51
65.94
66.10
65.93
65.82
65.76
65.71
65.69
19
65.60
65.88
65.62
65.35
65.50
65.98
66.01
66.02
65.82
65.76
65.71
65.71
20
65.55
65.75
65.66
65.37
65.50
66.07
65.95
66.39
65.82
65.75
65.72
65.72
21
65.53
65.61
65.61
65.43
65.47
66.00
65.90
66.17
65.82
65.75
65.72
65.72
22
65.56
65.55
65.57
65.47
65.47
65.88
65.87
66.10
65.81
65.75
65.71
65.73
23
65.52
65.51
65.55
65.44
65.45
65.85
65.80
66.00
65.81
65.75
65.71
65.73
24
65.47
65.49
65.52
65.42
65.50
65.83
65.71
65.97
65.81
65.75
65.71
65.74
25
65.43
65.48
65.50
65.41
65.47
65.81
65.98
65.96
65.81
65.75
65.71
65.75
26
65.39
65.46
65.48
65.60
65.45
65.83
65.92
65.94
65.81
65.75
65.71
65.73
27
65.36
65.44
65.47
65.76
65.44
65.98
65.82
65.94
65.81
65.75
65.71
65.72
28
65.34
65.42
65.49
65.99
65.44
66.54
65.76
65.94
65.79
65.74
65.71
65.71
29
65.33
65.43
65.53
66.07
65.55
66.63
65.71
65.94
65.80
65.75
65.72
30
65.33
65.46
65.51
66.08
65.65
66.21
65.66
65.94
65.80
65.76
65.71
31
65.49
66.14
65.71
65.83
65.80
65.76
65.70
----------
--------------
Mean
65.39
65.47
65.48
65.54
65.58
65.92
66.21
66.00
65.84
65.77
65.72
65.71
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Max
65.60
65.88
65.66
66.14
66.00
66.63
68.55
66.39
65.93
65.79
65.76
65.75
68.55
Min
65.13
65.32
65.37
65.35
65.44
65.73
65.66
65.87
65.79
65.74
65.69
65.68
65.13
69.28
m. (MSL.) ,
64.63
m. (MSL.) ,
River Bed 64.56
m. (MSL.)
71.60
m. (MSL.) ,
72.10
m. (MSL.) ,
Drainage Area 1844 Square Kilometers
Left Bank Elevation
Right Bank Elevation
at 09.00 Hours , on Oct 9 , 2012
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation