Basic HTML Version
412
Location : on right bank at Ban Pom
Amphoe
Phra Nakhon Si Ayutthaya
Changwat
Phra Nakhon Si Ayutthaya
Flood Plain
Ban
Pom
WATER YEAR : 2012
CHAO PHRAYA RIVER BASIN
Chao Phraya River at Ban Pom, Phra Nakhon Si Ayutthaya (C.35)
Lat 14 - 22 - 02 N Long 100 - 31 - 58 E
Drainge Area
Water - stage recorder
+0.000 m. (MSL.)
B.M.-H.D.
On right bank near the gage site.
Elevation
+6.300 m. (MSL.)
Recording
Arithmetic mean of 24 readings
1997 to date
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
Type of Gage
Bench Mark
Location BM
Rating Operation
Period of Available Gage Records
1997 to date
-
1998 to date
Fairly stable.
No overbank flow.
Records good. Stage-discharge relation defined by 22 discharge measurements made in 2012.
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
0.33
-0.02
0.37
0.26
0.64
1.23
3.06
0.66
0.53
0.57
0.34
0.38
2
0.33
0.06
0.44
0.33
0.70
1.51
2.96
0.66
0.51
0.45
0.30
0.28
3
0.20
-0.03
0.55
0.28
0.76
1.67
2.98
0.67
0.46
0.42
0.30
0.26
4
0.17
-0.07
0.66
0.26
0.80
1.82
2.99
0.67
0.44
0.33
0.43
0.30
5
0.25
0.09
0.78
0.31
0.78
1.76
2.96
0.68
0.43
0.33
0.42
0.31
6
0.20
-0.04
0.83
0.47
0.67
1.75
2.96
0.92
0.34
0.15
0.47
0.44
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Gage Height in Meter (MSL.) Water Year April 1, 2012 to March 31, 2013
7
0.23
-0.06
0.83
0.53
0.54
2.05
2.92
1.24
0.39
0.26
0.42
0.47
8
0.22
0.00
0.96
0.57
0.40
2.39
2.90
1.14
0.36
0.30
0.40
0.44
9
0.38
0.13
1.11
0.64
0.30
2.64
2.90
0.73
0.47
0.33
0.41
0.41
10
0.50
0.18
1.26
0.69
0.33
3.15
3.02
0.53
0.53
0.43
0.42
0.32
11
0.50
0.25
1.25
0.68
0.31
3.43
3.07
0.50
0.59
0.48
0.50
0.23
12
0.49
0.22
1.18
0.64
0.28
3.45
3.14
0.57
0.62
0.60
0.46
0.24
13
0.59
0.32
1.08
0.68
0.18
3.49
3.18
0.59
0.63
0.49
0.51
0.21
14
0.55
0.46
1.03
0.71
0.15
3.57
3.20
0.57
0.65
0.44
0.51
0.14
15
0.56
0.53
0.95
0.63
0.21
3.63
3.04
0.51
0.60
0.45
0.41
0.20
16
0.58
0.37
0.95
0.58
0.25
3.59
2.79
0.50
0.59
0.42
0.41
0.25
17
0.40
0.40
0.96
0.55
0.22
3.51
2.54
0.47
0.54
0.28
0.52
0.26
18
0.23
0.48
0.91
0.46
0.29
3.45
2.37
0.48
0.52
0.22
0.50
0.27
19
0.21
0.51
0.80
0.39
0.46
3.47
2.17
0.49
0.48
0.38
0.38
0.25
20
0.14
0.52
0.61
0.46
0.43
3.48
1.96
0.51
0.46
0.33
0.39
0.29
21
0.14
0.62
0.41
0.48
0.50
3.61
1.77
0.45
0.39
0.20
0.41
0.24
22
0.17
0.45
0.22
0.38
0.56
3.82
1.62
0.37
0.34
0.36
0.34
0.21
23
0.27
0.43
0.17
0.31
0.55
3.96
1.37
0.36
0.53
0.36
0.22
0.13
24
0.15
0.42
0.16
0.29
0.62
3.84
1.17
0.40
0.66
0.36
0.28
0.09
25
0.25
0.39
0.15
0.26
0.63
3.41
1.06
0.46
0.66
0.33
0.32
0.10
26
0.14
0.42
0.14
0.29
0.48
3.26
0.88
0.49
0.49
0.38
0.39
0.13
27
0.16
0.57
0.09
0.38
0.50
3.10
0.72
0.49
0.48
0.38
0.40
0.14
28
0.21
0.50
0.09
0.43
0.59
3.01
0.69
0.54
0.50
0.38
0.35
0.15
29
0.18
0.44
0.19
0.38
0.72
3.11
0.75
0.60
0.44
0.38
0.17
30
0.06
0.37
0.24
0.37
0.87
3.13
0.75
0.56
0.43
0.34
0.21
31
0.32
0.51
1.04
0.73
0.50
0.35
0.27
----------
--------------
Mean
0.29
0.30
0.65
0.46
0.51
2.98
2.21
0.59
0.50
0.37
0.40
0.25
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Max
0.59
0.62
1.26
0.71
1.04
3.96
3.20
1.24
0.66
0.60
0.52
0.47
3.96
Min
0.06
-0.07
0.09
0.26
0.15
1.23
0.69
0.36
0.34
0.15
0.22
0.09
-0.07
4.07
m. (MSL.) ,
0.00
m. (MSL.) ,
River Bed -8.57
m. (MSL.)
4.69
m. (MSL.) ,
6.30
m. (MSL.) ,
Drainage Area
Square Kilometers
at 24.00 Hours , on Sep 23 , 2012
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation