Page 614 - Slide 1

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580
Location : on right bank at the bridge of Ban Cha Prong.
460
sq.km.
Drainge Area
WATER YEAR : 2012
PHETCHABURI RIVER BASIN
Huai Mae Prachan at Ban Cha Prong , Phetchaburi (B.11)
Lat 13 - 10 - 23 N Long 99 - 41 - 00 E
Amphoe
Nong Ya Plong
Changwat
Phetchaburi
Ban
Cha Prong
Water - stage recorder
+72.272 m. (MSL.)
B.M.-H.D.
On right bank about 45 meters from the top staff gage.
Elevation
Recording
Arithmetic mean of 24 readings
2000 to date
Rating Operation
Period of Available Gage Records
Location BM
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+78.722 m. (MSL.)
Bench Mark
Type of Gage
2000 to date
-
2000 to date
Rather unstable.
No overbank flow.
Records fair. Stage-discharge relation defined by 14 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
72.04
72.03
72.06
70.94
70.73
70.96
71.61
71.27
71.59
71.37
71.26
71.23
2
72.03
72.03
72.06
70.94
70.84
70.96
71.65
71.26
71.59
71.37
71.26
71.23
3
72.03
72.03
72.06
70.94
70.93
70.86
71.74
71.26
71.60
71.37
71.26
71.23
4
72.03
72.03
72.06
70.94
70.93
70.67
71.81
71.25
71.60
71.37
71.26
71.23
5
72.03
72.02
72.06
70.94
70.93
70.65
71.97
71.25
71.59
71.37
71.26
71.23
6
72.03
72.03
72.06
70.93
70.93
70.70
72.03
71.24
71.58
71.37
71.26
71.23
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (MSL.) Water Year April 1, 2012 to March 31, 2013
7
72.03
72.03
72.06
70.86
70.93
70.70
71.67
71.17
71.58
71.37
71.26
71.23
8
72.03
72.03
72.06
70.78
70.93
70.70
71.72
71.04
71.58
71.37
71.26
71.23
9
72.03
72.03
72.06
70.77
70.93
70.70
71.91
71.02
71.50
71.37
71.26
71.23
10
72.03
72.03
72.06
70.77
70.93
70.70
71.89
71.02
71.38
71.37
71.26
71.88
11
72.03
72.04
72.06
70.76
70.90
70.69
71.94
71.00
71.38
71.37
71.26
71.95
12
72.03
72.04
72.06
70.71
70.91
70.70
71.94
71.02
71.39
71.37
71.26
71.97
13
72.03
72.03
71.81
70.69
70.91
70.78
71.88
71.02
71.39
71.37
71.26
71.97
14
72.03
72.03
71.37
70.72
70.92
70.85
71.76
71.02
71.47
71.37
71.26
71.97
15
72.03
72.02
71.16
70.78
70.91
70.89
71.62
71.03
71.46
71.37
71.26
71.97
16
72.03
72.04
71.01
70.73
70.92
70.95
71.57
71.02
71.36
71.37
71.26
71.97
17
72.03
72.04
71.00
70.73
71.05
71.03
71.59
71.11
71.36
71.37
71.26
71.80
18
72.03
72.03
71.00
70.79
71.27
71.11
71.61
71.14
71.36
71.37
71.27
71.38
19
72.03
72.03
70.90
70.82
71.12
71.21
71.58
71.19
71.36
71.37
71.27
71.37
20
72.03
72.03
70.84
70.77
70.81
71.15
71.58
71.27
71.36
71.37
71.27
71.35
21
72.03
72.03
70.95
70.73
70.77
71.13
71.59
71.29
71.36
71.37
71.27
71.31
22
72.03
72.06
70.94
70.73
70.78
71.12
71.47
71.28
71.37
71.37
71.26
71.31
23
72.03
72.05
70.95
70.73
70.81
71.11
71.36
71.18
71.38
71.37
71.24
71.31
24
72.03
72.06
70.96
70.73
70.87
71.10
71.24
71.27
71.38
71.37
71.24
71.31
25
72.03
72.06
70.96
70.74
70.89
71.01
71.26
71.52
71.38
71.37
71.24
71.31
26
72.03
72.06
70.95
70.74
70.93
70.92
71.25
71.53
71.38
71.37
71.24
71.31
27
72.03
72.06
70.94
70.75
70.93
70.93
71.11
71.54
71.38
71.37
71.23
71.28
28
72.03
72.06
70.94
70.76
70.92
70.96
71.03
71.61
71.38
71.37
71.23
71.24
29
72.03
72.06
70.94
70.77
70.92
70.94
71.15
71.60
71.38
71.37
71.24
30
72.03
72.06
70.94
70.77
70.93
71.19
71.26
71.59
71.38
71.29
71.24
31
72.06
70.75
70.96
71.26
71.38
71.26
71.24
----------
--------------
Mean
72.03
72.04
71.44
70.79
70.92
70.91
71.58
71.23
71.44
71.36
71.26
71.44
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Max
72.04
72.06
72.06
70.94
71.27
71.21
72.03
71.61
71.60
71.37
71.27
71.97
72.06
Min
72.03
72.02
70.84
70.69
70.73
70.65
71.03
71.00
71.36
71.26
71.23
71.23
70.65
72.46
m. (MSL.) ,
72.27
m. (MSL.) ,
River Bed 70.60
m. (MSL.)
79.36
m. (MSL.) ,
79.10
m. (MSL.) ,
Drainage Area 460 Square Kilometers
at 02.00 Hours , on Oct 6 , 2012
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation