Basic HTML Version
470
Location : on left bank about 50 meters downstream from Wat Thung Na Nang Rok.
2,375
sq.km.
Drainge Area
WATER YEAR : 2012
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
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
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
+49.887 m. (MSL.)
1965 - 1968 , 1995 to date
-
1965 - 1968 , 1995 to date
Stable.
No overbank flow.
Records good. Stage-discharge relation defined by 32 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
40.67
40.68
40.92
40.69
41.06
40.99
43.78
41.51
41.35
40.92
41.16
40.64
2
40.68
40.68
40.95
40.68
41.04
41.02
44.41
41.73
41.35
40.92
41.19
40.64
3
40.83
40.70
40.94
40.68
41.03
40.79
43.57
41.80
41.30
40.93
41.53
40.64
4
40.76
40.69
40.95
40.66
41.00
40.81
42.72
41.66
41.26
40.94
41.74
40.62
5
40.73
40.71
40.92
40.69
40.95
40.78
42.48
41.53
41.23
40.92
41.50
40.61
6
40.90
40.80
40.92
40.72
40.95
40.76
42.29
41.46
41.21
40.92
41.29
40.59
Gage Height in Meter (MSL.) Water Year April 1, 2012 to March 31, 2013
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
7
41.06
41.01
40.90
40.72
40.96
41.08
42.12
41.41
41.17
40.94
41.14
40.63
8
41.04
41.07
40.89
40.73
40.96
41.22
42.09
41.34
41.13
40.95
41.04
40.62
9
41.39
41.21
41.34
40.82
40.94
41.24
42.56
41.29
41.10
40.90
40.94
40.64
10
41.70
41.17
42.22
40.84
40.95
41.24
43.13
41.28
41.11
40.90
40.90
40.64
11
41.60
41.05
42.11
40.85
40.98
41.27
43.98
41.23
41.13
40.90
40.84
40.63
12
41.40
40.86
41.75
40.86
40.99
41.23
43.98
41.24
41.11
40.91
40.83
40.61
13
41.28
40.77
41.46
40.92
41.00
41.13
43.72
41.39
41.08
40.89
40.84
40.62
14
41.15
40.75
41.26
41.05
40.98
41.06
43.15
41.44
41.06
40.85
40.85
40.62
15
41.07
40.74
41.11
41.18
40.96
41.30
42.65
41.47
41.05
40.83
40.84
40.62
16
41.10
40.73
41.01
41.29
40.95
41.83
42.30
41.46
41.04
40.81
40.83
40.63
17
41.10
40.83
40.95
41.25
40.91
41.83
42.13
41.40
41.04
40.80
40.83
40.89
18
41.04
40.96
40.87
41.11
40.89
41.80
42.03
41.38
41.02
40.80
40.84
40.70
19
40.99
41.28
40.85
41.05
40.88
41.64
41.94
41.40
41.01
40.84
40.79
40.63
20
40.95
41.26
40.88
41.04
40.87
41.60
41.85
41.41
41.00
40.83
40.76
40.59
21
40.94
41.31
40.79
41.03
40.90
41.57
41.77
41.41
41.00
40.82
40.76
40.65
22
40.87
41.26
40.76
41.01
40.91
41.72
41.68
41.38
40.98
40.79
40.71
40.74
23
40.78
41.16
40.75
41.00
41.05
41.71
41.61
41.36
40.96
40.73
40.64
40.99
24
40.77
41.11
40.74
40.95
40.98
41.83
41.57
41.33
40.93
40.69
40.63
40.95
25
40.78
41.02
40.73
40.93
40.96
41.71
41.63
41.30
40.92
40.68
40.63
41.05
26
40.76
40.89
40.73
40.93
40.94
41.58
41.60
41.29
40.91
40.69
40.64
41.06
27
40.74
40.90
40.72
41.00
40.99
41.70
41.64
41.39
40.90
40.68
40.64
41.00
28
40.70
40.92
40.73
41.03
41.03
42.13
41.64
41.38
40.90
40.67
40.64
40.79
29
40.68
40.95
40.73
41.06
41.02
42.54
41.57
41.36
40.89
40.83
40.69
30
40.68
41.04
40.72
41.07
40.97
43.17
41.51
41.34
40.90
41.14
40.62
31
40.99
41.07
40.95
41.48
40.92
41.20
40.61
----------
--------------
Mean
40.97
40.95
41.02
40.93
40.97
41.48
42.41
41.41
41.06
40.86
40.93
40.71
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Max
41.70
41.31
42.22
41.29
41.06
43.17
44.41
41.80
41.35
41.20
41.74
41.06
44.41
Min
40.67
40.68
40.72
40.66
40.87
40.76
41.48
41.23
40.89
40.67
40.63
40.59
40.59
44.54
m. (MSL.) ,
40.44
m. (MSL.) ,
River Bed 40.44
m. (MSL.)
49.55
m. (MSL.) ,
46.50
m. (MSL.) ,
Drainage Area 2375 Square Kilometers
at 10.00 Hours , on Oct 2, 2012
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation