Basic HTML Version
594
Location : on left bank at the bridge of Phet Kasem Highway.
88
sq.km.
Drainge Area
WATER YEAR : 2012
WEST COAST - GULF BASIN
Khlong Cha Kra at Ban Cha Kra Bon , Prachuap Khiri Khan (Gt.18)
Lat 11 - 26 - 48 N Long 99 - 34 - 09 E
Amphoe
Thap Sakae
Changwat
Prachuap Khiri Khan
Ban
Cha Kra Bon
Staff gage
+11.715 m. (MSL.)
B.M.-H.D.
On left bank at the abutment of the bridge.
Elevation
5-time daily readings at 06.00, 09.00, 12.00, 15.00 and 18.00 hours.
Arithmetic mean of 5 readings
1987 to date
Rating Operation
Period of Available Gage Records
Location BM
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+17.228 m. (MSL.)
Bench Mark
Type of Gage
1987 to date
-
1987 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
12.69
12.49
12.72
12.74
12.80
12.73
12.72
12.79
13.25
12.71
12.99
12.68
2
12.69
12.49
12.72
12.77
12.79
12.76
12.72
12.77
13.20
12.71
12.93
12.68
3
12.69
12.55
12.72
12.75
12.78
12.74
12.71
12.76
13.15
12.70
12.92
12.67
4
12.68
12.61
12.74
12.75
12.77
12.72
12.71
12.75
13.05
12.70
12.89
12.67
5
12.68
12.65
12.75
12.74
12.76
12.72
12.70
12.75
12.99
12.69
12.87
12.66
6
12.67
12.68
12.73
12.74
12.76
12.74
12.72
12.74
12.92
12.69
12.86
12.66
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Gage Height in Meter (MSL.) Water Year April 1, 2012 to March 31, 2013
7
12.67
12.69
12.72
12.73
12.75
12.74
12.72
12.74
12.87
12.69
12.83
12.66
8
12.66
12.67
12.71
12.73
12.74
12.76
12.72
12.72
12.85
12.68
12.81
12.66
9
12.64
12.66
12.71
12.72
12.74
12.83
12.72
12.71
12.83
12.68
12.79
12.65
10
12.61
12.65
12.70
12.72
12.74
12.80
12.73
12.70
12.83
12.68
12.77
12.65
11
12.60
12.64
12.70
12.72
12.73
12.77
12.73
12.70
12.82
12.68
12.76
12.65
12
12.60
12.64
12.69
12.73
12.72
12.76
12.73
12.94
12.81
12.68
12.75
12.65
13
12.60
12.63
12.69
12.74
12.72
12.75
12.72
12.89
12.81
12.68
12.73
12.65
14
12.59
12.62
12.68
12.72
12.72
12.74
12.72
12.79
12.81
12.67
12.72
12.64
15
12.59
12.62
12.68
12.72
12.72
12.73
12.72
12.77
12.80
12.67
12.71
12.64
16
12.59
12.61
12.67
12.74
12.72
12.73
12.72
12.76
12.79
12.67
12.70
12.64
17
12.58
12.61
12.67
12.74
12.71
12.72
12.72
12.80
12.79
12.66
12.69
12.64
18
12.58
12.60
12.68
12.73
12.71
12.75
12.74
12.85
12.77
12.66
12.69
12.64
19
12.58
12.58
12.70
12.72
12.73
12.74
12.73
12.83
12.75
12.66
12.68
12.64
20
12.58
12.57
12.70
12.71
12.75
12.73
12.72
12.80
12.73
12.66
12.68
12.64
21
12.57
12.56
12.69
12.71
12.75
12.73
12.77
12.79
12.73
12.65
12.67
12.63
22
12.57
12.56
12.69
12.71
12.74
12.72
12.76
12.80
12.72
12.65
12.67
12.63
23
12.57
12.58
12.68
12.71
12.74
12.72
12.77
12.77
12.72
12.65
12.67
12.63
24
12.57
12.58
12.68
12.70
12.73
12.72
12.92
12.72
12.72
12.64
12.67
12.63
25
12.56
12.59
12.67
12.69
12.72
12.71
12.97
12.78
12.73
12.64
12.67
12.63
26
12.55
12.59
12.66
12.72
12.71
12.72
12.86
12.98
12.73
12.64
12.68
12.63
27
12.54
12.59
12.63
12.75
12.71
12.72
12.80
13.52
12.72
12.64
12.68
12.63
28
12.54
12.60
12.62
12.77
12.70
12.73
12.81
13.58
12.72
12.65
12.68
12.62
29
12.53
12.66
12.64
12.78
12.72
12.73
12.76
14.30
12.72
12.65
12.62
30
12.53
12.68
12.69
12.79
12.76
12.72
12.76
13.42
12.72
12.83
12.62
31
12.70
12.83
12.72
12.75
12.71
12.99
12.62
----------
--------------
Mean
12.60
12.61
12.69
12.74
12.74
12.74
12.75
12.91
12.83
12.69
12.76
12.64
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Max
12.69
12.70
12.75
12.83
12.80
12.83
12.97
14.30
13.25
12.99
12.99
12.68
14.30
Min
12.53
12.49
12.62
12.69
12.70
12.71
12.70
12.70
12.71
12.64
12.67
12.62
12.49
14.71
m. (MSL.) ,
11.72
m. (MSL.) ,
River Bed 12.21
m. (MSL.)
16.18
m. (MSL.) ,
17.22
m. (MSL.) ,
Drainage Area
88
Square Kilometers
at 18.00 Hours , on Nov 29, 2012
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation