Basic HTML Version
218
Location : on right bank about 615 meters downstream from tha Kradan Wair.
974
sq.km.
WATER YEAR : 2011
PING RIVER BASIN
Khlong Suan Mak at Ban Mai , Kamphaeng Phet (P.26A)
Lat 16 - 26 - 55 N Long 99 - 26 - 28 E
Drainge Area
Amphoe
Mueang
Changwat
Kamphaeng Phet
Ban
Mai
Staff gage.
+84.110 m. (MSL.)
B.M.-H.D.
On right bank about 30 meters from the south of Wat Sri Phirom.
Elevation
5-time daily readings at 06.00, 09.00, 12.00, 15.00 and 18.00 hours.
Arithmetic means of 5 readings
1971 to date
Rating Operation
Period of Available Gage Records
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+89.637 m. (MSL.)
Type of Gage
Bench Mark
Location BM
1972 - 1974 , 1980 to date
-
1972 - 1974 , 1980 to date
Stable.
Overbank flow starts at elevation + 88.140 m. (MSL.), records are channel flow only
Records good. Flow effected by Tha Kradan weir about 3.5 kilometers above gage site.
Stage-discharge relation defined by 36 discharge measurements made in 2011.
Rated by Current Meter
Stability of Channel Regimes
Overbank Flow Conditions
General Description
Period of Rating
Rated by Flot
Date
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Annual
----------
-----------------
1
84.17
84.74
85.09
84.49
84.89
84.90
85.29
85.10
84.44
84.22
84.03
83.98
2
84.16
84.73
85.05
84.61
84.88
85.05
85.42
85.06
84.44
84.21
84.03
83.98
3
84.16
84.72
85.04
84.57
84.99
84.89
86.19
85.02
84.43
84.20
84.21
83.98
4
84.15
84.71
85.02
84.68
84.99
84.83
87.70
84.98
84.43
84.19
84.20
83.98
5
84.15
84.70
85.22
84.59
84.92
84.79
87.68
84.93
84.42
84.18
84.19
83.98
6
84.15
84.86
86.23
84.71
84.84
84.94
86.81
84.88
84.42
84.17
84.18
83.98
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Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
84.14
84.82
86.34
84.64
84.76
84.87
86.97
84.85
84.41
84.16
84.17
83.98
8
84.14
84.72
85.66
84.56
84.68
84.81
86.53
84.80
84.41
84.15
84.16
83.98
9
84.22
84.78
85.42
84.49
84.61
84.79
85.98
84.77
84.40
84.14
84.15
83.98
10
84.21
85.08
85.27
84.48
84.58
85.21
86.28
84.75
84.39
84.13
84.14
83.98
11
84.19
84.82
85.19
84.51
84.58
86.07
85.99
84.72
84.38
84.12
84.13
83.98
12
84.18
84.76
85.11
84.45
84.78
87.85
85.79
84.70
84.37
84.11
84.12
83.98
13
84.31
84.73
85.06
84.42
84.73
88.70
85.55
84.68
84.36
84.10
84.11
83.98
14
84.52
84.74
85.01
85.26
84.64
87.65
85.45
84.67
84.35
84.09
84.10
83.98
15
84.39
86.56
84.96
84.93
84.61
87.08
85.36
84.66
84.34
84.08
84.09
83.98
16
84.34
85.98
84.88
85.28
84.70
86.67
85.31
84.64
84.33
84.07
84.08
83.98
17
84.32
85.75
84.83
85.27
84.66
86.40
85.89
84.62
84.32
84.06
84.07
83.98
18
84.39
85.51
84.78
85.10
84.85
86.22
86.80
84.60
84.31
84.05
84.06
83.98
19
84.56
85.33
84.74
84.96
85.02
86.15
86.74
84.57
84.30
84.04
84.05
83.98
20
84.68
85.16
84.68
84.83
85.09
86.07
86.29
84.55
84.30
84.03
84.04
83.98
21
84.47
84.96
84.60
84.72
84.90
85.98
85.81
84.54
84.29
84.02
84.03
83.98
22
84.41
84.79
84.54
84.89
84.80
86.37
85.65
84.53
84.28
84.01
84.02
83.98
23
84.41
84.74
84.52
84.99
84.72
86.17
85.57
84.52
84.27
84.00
84.01
83.98
24
84.51
84.72
84.50
85.40
84.67
86.30
85.43
84.51
84.27
84.00
84.00
83.98
25
84.45
84.71
84.47
85.30
84.65
86.09
85.37
84.50
84.26
84.09
84.00
83.98
26
84.44
84.83
84.45
85.22
84.82
85.81
85.47
84.49
84.26
84.08
83.99
83.98
27
84.42
85.10
84.61
85.14
84.75
85.54
85.32
84.48
84.25
84.07
83.99
83.98
28
84.53
85.35
84.84
85.06
84.73
85.43
85.24
84.47
84.25
84.06
83.98
83.98
29
84.44
85.36
84.66
84.97
84.97
85.35
85.20
84.46
84.24
84.05
83.98
83.98
30
84.36
85.20
84.59
84.86
85.12
85.32
85.17
84.45
84.24
84.04
83.98
31
85.11
84.71
84.97
85.14
84.24
84.03
84.01
----------
--------------
Mean
84.33
85.03
84.98
84.84
84.80
85.88
85.92
84.68
84.34
84.10
84.08
83.98
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Max
84.68
86.56
86.34
85.40
85.12
88.70
87.70
85.10
84.44
84.22
84.21
84.01
88.70
Min
84.14
84.70
84.45
84.42
84.58
84.79
85.14
84.45
84.24
84.00
83.98
83.98
83.98
88.91
m. (MSL.) ,
84.11
m. (MSL.) ,
River Bed 84.23
m. (MSL)
88.13
m. (MSL.) ,
89.58
m. (MSL.) ,
Drainage Area 974 Square Kilometers
at 06.00 Hours , on Sep 13 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation