Basic HTML Version
490
Location : on right bank at KM. 121+600 on Kanchanaburi - Thong Pha Phum Highway.
51
sq.km.
WATER YEAR : 2012
MAE KLONG RIVER BASIN
Huai Ong Thi at Ban Ong Thi , Kanchanaburi (K.39)
Lat 14 - 42 - 21 N Long 98 - 40 - 19 E
Amphoe
Thong Pha Phum
Changwat
Kanchanaburi
Ban
Ong Thi
Drainge Area
Staff gage
+81.783 m. (MSL.)
B.M.-H.D.
On right bank about 16 meters from the third staff gage.
Elevation
5-time daily reading at 06.00, 09.00, 12.00, 15.00 and 18.00 hours.
Arithmetic mean of 5 readings
1984 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
+91.299 m. (MSL.)
1985 - 1990 , 1996 to date
-
1985 - 1990 , 1996 to date
Stable.
No overbank flow.
Records good. Stage-discharge relation defined by 37 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
81.98
81.97
82.03
82.16
82.45
82.20
82.43
82.20
82.14
82.09
82.10
82.07
2
81.98
81.97
82.02
82.13
82.36
82.22
82.47
82.20
82.14
82.09
82.08
82.06
3
81.98
81.97
82.03
82.15
82.40
82.26
82.41
82.19
82.13
82.09
82.08
82.06
4
82.00
81.98
82.27
82.14
82.37
82.32
82.42
82.18
82.13
82.09
82.08
82.06
5
82.05
82.03
82.15
82.17
82.31
82.28
82.39
82.18
82.13
82.09
82.08
82.06
6
82.03
82.07
82.09
82.15
82.31
82.77
82.35
82.18
82.13
82.09
82.08
82.06
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (MSL.) Water Year April 1, 2012 to March 31, 2013
7
82.09
82.03
82.05
82.13
82.30
82.49
82.34
82.18
82.14
82.09
82.08
82.06
8
82.04
82.02
82.20
82.12
82.34
82.49
82.34
82.18
82.12
82.09
82.07
82.06
9
82.03
82.01
82.14
82.11
82.33
82.38
82.39
82.18
82.11
82.09
82.07
82.05
10
82.02
82.01
82.29
82.10
82.35
82.36
82.33
82.17
82.11
82.08
82.07
82.05
11
82.01
82.00
82.14
82.09
82.44
82.34
82.31
82.17
82.11
82.08
82.07
82.05
12
82.01
81.99
82.10
82.09
82.33
82.31
82.35
82.16
82.13
82.08
82.07
82.04
13
82.01
81.99
82.09
82.09
82.32
82.29
82.33
82.18
82.12
82.08
82.07
82.04
14
82.01
81.99
82.08
82.09
82.30
82.28
82.33
82.18
82.12
82.08
82.07
82.04
15
82.00
81.99
82.06
82.09
82.29
82.48
82.31
82.17
82.12
82.08
82.07
82.03
16
82.00
81.99
82.09
82.09
82.26
82.46
82.31
82.16
82.11
82.08
82.07
82.05
17
82.00
81.99
82.24
82.08
82.31
82.39
82.28
82.16
82.11
82.08
82.07
82.04
18
82.00
82.01
82.26
82.15
82.36
82.57
82.27
82.16
82.11
82.08
82.07
82.04
19
81.99
82.02
82.23
82.33
82.31
82.47
82.25
82.15
82.11
82.08
82.07
82.04
20
81.98
82.00
82.16
82.23
82.29
82.43
82.25
82.15
82.11
82.08
82.06
82.04
21
81.98
82.01
82.16
82.22
82.24
82.42
82.23
82.15
82.11
82.08
82.06
82.04
22
81.98
82.01
82.14
82.17
82.24
82.39
82.22
82.15
82.11
82.08
82.06
82.03
23
81.97
82.01
82.15
82.15
82.22
82.37
82.22
82.15
82.11
82.08
82.06
82.03
24
81.97
82.01
82.10
82.19
82.21
82.36
82.23
82.15
82.10
82.08
82.06
82.03
25
81.97
82.00
82.11
82.34
82.21
82.35
82.25
82.15
82.10
82.08
82.05
82.03
26
81.97
82.01
82.10
82.40
82.20
82.42
82.23
82.15
82.10
82.08
82.05
82.03
27
81.97
82.00
82.12
82.31
82.20
82.45
82.22
82.14
82.10
82.07
82.05
82.03
28
81.97
82.01
82.16
82.57
82.21
82.54
82.21
82.15
82.10
82.07
82.05
82.02
29
81.97
82.01
82.14
82.73
82.20
82.59
82.21
82.15
82.10
82.07
82.02
30
81.97
82.06
82.15
82.52
82.19
82.51
82.20
82.15
82.10
82.07
82.01
31
82.05
82.39
82.20
82.20
82.10
82.08
82.01
----------
--------------
Mean
82.00
82.01
82.14
82.22
82.29
82.41
82.30
82.17
82.11
82.08
82.07
82.04
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Max
82.09
82.07
82.29
82.73
82.45
82.77
82.47
82.20
82.14
82.09
82.10
82.07
82.77
Min
81.97
81.97
82.02
82.08
82.19
82.20
82.20
82.14
82.10
82.07
82.05
82.01
81.97
83.16
m. (MSL.) ,
81.78
m. (MSL.) ,
River Bed 81.66
m. (MSL.)
88.99
m. (MSL.) ,
90.20
m. (MSL.) ,
Drainage Area
51
Square Kilometers
at 18.00 Hours , on Sep 6 , 2012
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation