Basic HTML Version
496
Location : on left bank about 50 meters downstream from Wat Thung Na Nang Rok.
2,375
sq.km.
WATER YEAR : 2014
MAE KLONG RIVER BASIN
Lam Ta Phoen at Ban Thung Na Nang Rok , Kanchanaburi (K.12)
Lat 14 - 09 - 17 N Long 99 - 25 - 07 E
Amphoe
Mueang
Changwat
Kanchanaburi
Ban
Thung Na Nang Rok
Drainge Area
Water - stage recorder
+40.437 m. (MSL.)
B.M.-H.D.
On left bank about 6 meters from the top staff gage.
Elevation
Recording
Arithmetic mean of 24 readings
1965 to date
+49.887 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
1965 - 1968 , 1995 to date
-
1965 - 1968 , 1995 to date
Stable.
No overbank flow.
Records good. Stage-discharge relation defined by 13 discharge measurements made in 2014.
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
40.61
40.54
40.72
40.65
40.49
40.70
40.51
41.66
41.01
40.66
40.64
40.76
2
40.60
40.54
40.72
40.66
40.49
40.69
40.52
41.61
40.99
40.67
40.64
40.79
3
40.55
40.54
40.72
40.66
40.49
40.70
41.28
41.46
40.98
40.64
40.60
40.82
4
40.55
40.54
40.71
40.66
40.49
40.70
41.69
41.34
40.94
40.64
40.59
40.80
5
40.57
40.52
40.71
40.64
40.49
40.70
41.38
41.35
40.94
40.64
40.59
40.81
6
40.63
40.53
40.72
40.62
40.49
40.70
41.23
41.35
40.94
40.62
40.61
40.81
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Gage Height in Meter (MSL.) Water Year April 1, 2014 to March 31, 2015
7
40.62
40.54
40.72
40.62
40.51
40.69
41.06
41.39
40.93
40.62
40.61
40.79
8
40.69
40.54
40.72
40.61
40.52
40.69
41.06
42.68
40.93
40.61
40.60
40.81
9
40.79
40.59
40.72
40.60
40.51
40.69
41.14
42.95
40.93
40.66
40.59
40.81
10
40.84
40.75
40.72
40.56
40.51
40.59
41.13
42.56
40.93
40.68
40.57
40.80
11
40.77
40.89
40.72
40.61
40.50
40.56
41.04
42.25
40.86
40.69
40.57
40.79
12
40.74
40.94
40.71
40.58
40.51
40.56
41.21
42.18
40.76
40.69
40.57
40.76
13
40.72
40.89
40.71
40.58
40.68
40.53
41.57
42.14
40.76
40.69
40.58
40.79
14
40.72
40.91
40.71
40.55
40.61
40.53
41.72
41.98
40.76
40.70
40.58
40.79
15
40.74
40.94
40.73
40.56
40.61
40.79
41.60
41.79
40.76
40.72
40.57
40.81
16
40.74
40.94
40.73
40.56
40.55
40.79
41.37
41.64
40.75
40.72
40.56
40.81
17
40.73
40.94
40.74
40.57
40.55
40.74
41.21
41.56
40.74
40.74
40.56
40.79
18
40.72
40.92
40.74
40.59
40.53
40.74
41.09
41.53
40.76
40.74
40.56
40.78
19
40.72
40.79
40.74
40.59
40.54
40.69
40.99
41.51
40.74
40.73
40.54
40.78
20
40.72
40.69
40.76
40.59
40.68
40.72
40.97
41.41
40.74
40.72
40.54
40.76
21
40.66
40.69
40.71
40.59
40.65
40.62
40.97
41.23
40.72
40.72
40.54
40.75
22
40.64
40.69
40.69
40.59
40.64
40.59
40.97
41.17
40.71
40.71
40.93
40.75
23
40.62
40.72
40.69
40.57
40.64
40.56
41.06
41.13
40.71
40.72
40.79
40.74
24
40.62
40.74
40.68
40.55
40.74
40.54
41.27
41.11
40.70
40.70
40.65
40.74
25
40.64
40.74
40.68
40.55
40.78
40.46
41.29
41.08
40.69
40.70
40.69
41.04
26
40.60
40.72
40.68
40.52
40.75
40.46
41.32
41.06
40.67
40.69
40.74
40.99
27
40.60
40.72
40.69
40.51
40.71
40.46
41.64
41.04
40.64
40.67
40.80
40.82
28
40.59
40.76
40.69
40.51
40.72
40.48
41.77
41.04
40.64
40.62
40.79
40.79
29
40.55
40.75
40.69
40.49
40.72
40.50
41.78
41.04
40.70
40.62
40.79
30
40.53
40.75
40.66
40.49
40.71
40.50
41.67
41.04
40.66
40.60
40.74
31
40.73
40.49
40.70
41.58
40.69
40.64
40.64
----------
--------------
Mean
40.66
40.73
40.71
40.58
40.60
40.62
41.26
41.58
40.80
40.68
40.63
40.80
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Max
40.84
40.94
40.76
40.66
40.78
40.79
41.78
42.95
41.01
40.74
40.93
41.04
42.95
Min
40.53
40.52
40.66
40.49
40.49
40.46
40.51
41.04
40.64
40.60
40.54
40.64
40.46
43.00
m. (MSL.) ,
40.44
m. (MSL.) ,
River Bed 40.32
m. (MSL.)
49.47
m. (MSL.) ,
46.56
m. (MSL.) ,
Drainage Area 2375 Square Kilometers
Left Bank Elevation
Right Bank Elevation
at 02.00 Hours , on Nov 9 , 2014
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation