Basic HTML Version
402
Location : on left bank at Ban Phai Lom
109,973 sq.km.
Drainge Area
WATER YEAR : 2012
CHAO PHRAYA RIVER BASIN
Chao Phraya River at Ban Phai Lom, Nakhon Sawan (C.2)
Lat 15 - 40 - 15 N Long 100 - 06 - 49 E
Amphoe
Mueang
Changwat
Nakhon Sawan
Ban
Phai Lom
Water - stage recorder
+0.000 m. (MSL.)
B.M.-H.D.
About 20.00 meters west of the gage site
Elevation
Recording
Arithmetic mean of 24 readings
1914 to date
Rating Operation
Period of Available Gage Records
Location BM
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+25.628 m. (MSL.)
Bench Mark
Type of Gage
1956 to date
-
1956 to date
Fairly stable
No overbank flow.
Records good. Flow effected by Phumiphol Dam, Sirikit Dam and Phrom Phiram Dam.
Stage-discharge relation defined by 31 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
19.58
18.76
20.26
19.88
20.26
21.02
22.08
19.56
19.46
19.26
19.33
18.87
2
19.65
18.81
20.36
19.86
20.36
21.17
22.11
19.48
19.54
19.20
19.46
18.97
3
19.69
18.95
20.51
19.85
20.38
21.22
22.11
19.81
19.65
19.23
19.54
19.03
4
19.54
19.39
20.59
19.83
20.34
21.20
22.10
20.22
19.67
19.27
19.50
19.10
5
19.30
19.94
20.54
19.85
20.23
21.18
22.06
20.35
19.62
19.30
19.46
18.88
6
19.28
20.31
20.50
19.97
20.08
21.24
22.07
20.19
19.75
19.51
19.41
18.80
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Gage Height in Meter (MSL.) Water Year April 1, 2012 to March 31, 2013
7
19.36
20.31
20.53
20.08
19.94
21.33
22.09
19.78
19.80
19.66
19.43
18.84
8
19.49
20.43
20.64
20.16
19.80
21.72
22.22
19.64
19.74
19.75
19.38
18.84
9
19.58
20.42
20.72
20.20
19.73
22.65
22.32
19.56
19.70
19.65
19.33
18.85
10
19.95
20.59
20.92
20.19
19.67
23.33
22.57
19.45
19.69
19.56
19.34
18.84
11
20.25
20.99
20.95
20.15
19.63
23.33
22.78
19.35
19.48
19.49
19.31
18.76
12
20.56
21.26
20.96
20.23
19.71
23.29
22.88
19.26
19.35
19.39
19.30
18.63
13
20.57
21.18
21.00
20.24
19.82
23.34
22.62
19.15
19.26
19.34
19.27
18.45
14
20.61
21.06
21.08
20.12
19.94
23.32
22.32
19.11
19.28
19.28
19.25
18.31
15
20.38
20.91
21.10
20.00
20.00
23.26
22.05
19.27
19.33
19.29
19.12
18.20
16
19.98
20.59
21.06
19.91
19.94
23.15
21.83
19.45
19.33
19.14
19.06
18.10
17
19.76
20.32
20.96
19.84
19.86
23.16
21.62
19.44
19.32
19.21
18.98
18.07
18
19.74
20.23
20.73
19.82
19.82
23.12
21.42
19.44
19.36
19.26
18.92
18.05
19
19.88
20.19
20.49
19.84
19.75
23.13
21.24
19.50
19.30
19.25
18.84
18.03
20
20.27
20.18
20.30
19.77
19.71
23.18
21.04
19.47
19.29
19.25
18.82
17.98
21
20.42
20.20
20.18
19.72
19.65
23.15
20.82
19.47
19.36
19.26
18.78
17.81
22
20.35
20.24
20.13
19.74
19.63
23.06
20.60
19.47
19.42
19.24
18.58
17.84
23
20.19
20.21
20.17
19.70
19.59
22.89
20.43
19.47
19.42
19.21
18.55
17.82
24
19.87
20.14
20.22
19.62
19.53
22.68
20.24
19.55
19.44
19.09
18.52
17.74
25
19.47
20.05
20.25
19.55
19.49
22.44
20.03
19.59
19.43
19.23
18.52
17.76
26
19.08
19.98
20.21
19.53
19.48
22.25
19.95
19.58
19.27
19.36
18.53
17.73
27
18.86
19.93
20.11
19.51
19.73
22.06
19.99
19.56
19.21
19.45
18.70
17.69
28
18.71
19.79
20.04
19.56
19.93
21.94
19.96
19.51
19.24
19.48
18.84
17.72
29
18.77
19.81
19.97
19.71
20.11
21.89
19.88
19.44
19.28
19.40
17.81
30
18.77
19.93
19.94
19.95
20.44
21.94
19.77
19.39
19.27
19.31
17.85
31
20.15
20.13
20.70
19.65
19.26
19.22
17.87
----------
--------------
Mean
19.73
20.17
20.51
19.89
19.91
22.42
21.38
19.55
19.44
19.34
19.07
18.30
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Max
20.61
21.26
21.10
20.24
20.70
23.34
22.88
20.35
19.80
19.75
19.54
19.10
23.34
Min
18.71
18.76
19.94
19.51
19.48
21.02
19.65
19.11
19.21
19.09
18.52
17.69
17.69
23.39
m. (MSL.) ,
0.00
m. (MSL.) ,
River Bed 13.43
m. (MSL.)
25.60
m. (MSL.) ,
26.46
m. (MSL.) ,
Drainage Area 109973 Square Kilometers
at 17.00 Hours , on Sep 10 , 2012
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation