Basic HTML Version
594
Location : on left bank at Ban Song Phi Nong.
2,220
sq.km.
WATER YEAR : 2011
PHETCHABURI RIVER BASIN
Phetchaburi River at Ban Song Phi Nong , Phetchaburi (B.3A)
Lat 12 - 51 - 47 N Long 99 - 40 - 42 E
Amphoe
Kaeng Krachan
Changwat
Phetchaburi
Ban
Song Phi Nong
Drainge Area
Water - stage recorder
+40.998 m. (MSL.)
B.M.-H.D.
On left bank about 24 meters from the top staff gage.
Elevation
Recording
Arithmetic means of 24 readings
1930 - 1942 , 1954 to date
+50.534 m. (MSL.)
Bench Mark
Type of Gage
Rating Operation
Period of Available Gage Records
Location BM
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
1954 - 1959 , 1968 to date
-
1954 - 1959 , 1968 to date
Stable.
No overbank flow.
Records good. Flow regulated by Kaeng Krachan Reservoir.
Stage-discharge relation defined by 35 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
42.50
41.84
41.75
42.21
43.21
42.20
43.34
42.51
42.29
42.61
42.84
42.90
2
42.77
41.94
41.74
42.11
43.65
42.20
42.71
42.51
42.19
42.64
42.85
42.90
3
43.07
42.29
41.64
42.12
43.63
42.17
42.70
42.51
42.10
42.80
42.85
42.90
4
42.12
42.37
41.63
42.11
43.74
42.16
42.69
42.51
42.09
42.69
42.84
42.90
5
41.94
41.80
41.65
42.12
43.86
42.69
42.70
42.52
42.09
42.48
42.84
42.85
6
41.90
41.74
41.62
42.12
43.84
43.37
42.71
42.52
42.09
42.49
42.85
42.76
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Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
41.90
41.73
41.63
42.12
43.48
42.53
42.73
42.60
42.07
42.49
42.85
42.75
8
41.90
41.73
41.71
42.13
42.81
42.51
42.76
43.20
42.07
42.49
42.85
42.76
9
42.79
41.86
41.74
42.16
42.79
42.47
42.71
43.22
42.06
42.49
42.85
42.69
10
43.05
41.95
41.74
42.14
42.78
42.48
42.71
42.83
42.07
42.51
42.86
42.75
11
42.82
41.91
41.73
42.05
42.78
42.49
42.70
42.56
41.98
42.53
42.86
42.78
12
42.60
41.91
41.77
42.16
42.70
42.48
42.70
42.56
41.91
42.57
42.86
42.84
13
42.61
41.98
41.76
42.23
42.70
42.50
42.50
42.59
41.91
42.57
42.86
42.83
14
42.60
42.06
41.76
42.24
42.69
42.48
42.70
42.80
41.99
42.58
42.86
42.83
15
42.26
42.05
41.74
42.53
42.70
42.49
42.35
42.81
42.09
42.58
42.86
42.83
16
42.09
42.05
41.78
42.56
42.66
42.49
41.81
42.82
42.05
42.59
42.85
42.85
17
41.79
41.92
41.58
42.55
42.63
42.57
41.78
42.82
42.05
42.59
42.66
42.87
18
41.74
41.89
41.79
42.53
42.56
42.65
41.76
42.86
42.04
42.59
42.66
42.88
19
41.74
41.77
41.72
42.55
42.55
42.65
41.72
42.71
42.04
42.60
42.67
42.84
20
41.74
41.75
41.55
42.46
42.55
42.77
41.72
42.67
42.03
42.61
42.67
42.77
21
41.73
41.74
41.68
42.30
42.54
42.75
41.73
42.58
42.04
42.61
42.69
42.78
22
41.73
41.73
41.93
42.20
42.56
42.79
41.73
42.56
42.10
42.56
42.74
42.77
23
41.87
41.73
41.97
42.20
42.58
42.81
41.73
42.55
42.03
42.49
42.74
42.78
24
41.88
41.73
42.18
42.19
42.58
43.02
41.73
42.57
42.06
42.50
42.75
42.70
25
41.90
41.73
42.35
42.19
42.59
42.80
41.72
42.57
42.04
42.50
42.88
42.78
26
42.38
41.76
42.47
42.19
42.62
43.18
41.87
42.55
41.99
42.52
42.89
42.78
27
41.62
41.77
42.48
42.23
42.62
43.93
42.44
42.50
42.01
42.55
42.90
42.78
28
41.70
41.74
42.46
42.66
42.54
43.90
42.51
42.46
41.99
42.55
42.90
42.80
29
41.73
41.73
42.45
42.64
42.42
43.87
42.51
42.29
41.98
42.55
42.90
42.79
30
41.88
41.74
42.44
42.67
42.45
43.82
42.51
42.29
42.03
42.56
42.79
31
41.77
42.66
42.41
42.51
42.17
42.63
42.79
----------
--------------
Mean
42.14
41.86
41.88
42.30
42.85
42.77
42.34
42.64
42.05
42.57
42.82
42.81
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Max
43.07
42.37
42.48
42.67
43.86
43.93
43.34
43.22
42.29
42.80
42.90
42.90
43.93
Min
41.62
41.73
41.55
42.05
42.41
42.16
41.72
42.29
41.91
42.48
42.66
42.69
41.55
44.09
m. (MSL.) ,
41.00
m. (MSL.) ,
River Bed 40.59
m. (MSL)
48.88
m. (MSL.) ,
48.81
m. (MSL.) ,
Drainage Area 2220 Square Kilometers
at 23.00 Hours , on Apr 9 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation