Page 370 - yearbook2011

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336
Location : on left bank at Ban Tha Tako
-
sq.km.
Amphoe
Pho Prathap Chang
Changwat
Phichit
Ban
Tha Tako
WATER YEAR : 2011
YOM RIVER BASIN
Yom River at Ban Tha Tako , Phichit (Y.42)
Lat 16 - 18 - 40 N Long 100 - 16 - 19 E
Drainge Area
Staff gage
+0.000 m. (A.D.)
B.M.-H.D.
Near the gage observers house.
Elevation
5-time daily readings at 06.00, 09.00, 12.00, 15.00 and 18.00 hours.
Arithmetic means of 5 readings
2011 to date
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+8.785 m. (A.D.)
Type of Gage
Bench Mark
Location BM
Rating Operation
Period of Available Gage Records
2011 to date
-
2011 to date
Fairly stable.
Overbank flow starts at elevation + 8.400 m.(A.D.), records are channel flow only.
Records fair.Stage-discharge relation defined by 23 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
2.62
4.37
6.44
6.14
7.29
9.04
9.10
8.61
5.86
1.38
1.72
2.45
2
2.43
4.53
6.48
6.22
7.30
9.04
9.11
8.57
5.55
1.45
1.79
2.40
3
2.17
4.58
6.48
6.35
7.32
9.04
9.12
8.55
5.24
1.52
1.86
2.34
4
2.05
4.69
6.48
6.53
7.33
9.03
9.13
8.49
4.94
1.59
1.93
2.28
5
1.96
4.77
6.49
6.64
7.35
9.03
9.14
8.41
4.62
1.66
2.00
2.24
6
1.78
5.01
6.52
6.70
7.41
9.03
9.15
8.33
4.31
1.74
2.07
2.17
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (A.D.) Water Year April 1, 2011 to March 31, 2012
7
1.72
5.37
6.56
6.74
7.53
9.03
9.15
8.27
4.01
1.82
2.15
2.13
8
1.54
5.52
6.63
6.72
7.64
9.02
9.15
8.25
3.71
1.86
2.23
2.07
9
1.48
5.74
6.68
6.69
7.71
9.02
9.15
8.23
3.46
1.89
2.22
2.02
10
1.44
5.92
6.74
6.65
7.76
9.03
9.14
8.22
3.20
1.96
2.17
1.97
11
1.40
5.79
6.37
6.61
7.86
9.04
9.13
8.18
3.05
2.11
2.24
1.90
12
1.36
5.76
6.79
6.29
7.96
9.04
9.15
8.15
2.91
2.18
2.33
1.84
13
1.31
5.69
6.81
5.97
8.00
9.04
9.17
8.11
2.71
2.12
2.48
1.77
14
1.28
5.62
6.80
6.13
8.04
9.05
9.16
8.07
2.67
2.03
2.64
1.80
15
1.88
5.52
6.79
6.26
8.08
9.05
9.15
8.03
2.62
2.05
2.65
1.84
16
2.00
5.51
6.72
6.41
8.14
9.05
9.13
7.95
2.54
2.09
2.64
1.88
17
2.49
5.74
6.68
6.66
8.17
9.05
9.10
7.86
2.48
2.12
2.64
1.92
18
2.87
5.92
6.68
6.88
8.22
9.05
9.08
7.78
2.50
2.15
2.62
1.96
19
2.85
6.25
6.66
7.04
8.41
9.05
9.07
7.67
2.53
2.22
2.43
2.01
20
2.85
6.28
6.64
7.08
8.70
9.05
9.05
7.58
2.43
2.29
2.38
1.94
21
2.88
6.41
6.61
7.09
8.80
9.05
9.04
7.47
2.32
2.39
2.32
1.87
22
3.07
6.48
6.59
7.11
8.87
9.06
9.03
7.37
2.23
2.44
2.25
1.79
23
3.11
6.46
6.53
7.14
9.01
9.07
9.01
7.25
2.13
2.39
2.18
1.71
24
3.13
6.42
6.44
7.18
9.04
9.07
9.00
7.17
2.03
2.35
2.13
1.64
25
3.14
6.39
6.42
7.22
9.05
9.07
8.99
7.08
1.96
2.41
2.03
1.56
26
3.37
6.33
6.38
7.27
9.06
9.07
8.96
6.98
1.84
2.48
2.09
1.48
27
3.90
6.19
6.36
7.31
9.09
9.08
8.89
6.88
1.72
2.50
2.19
1.44
28
3.91
6.17
6.30
7.32
9.11
9.09
8.80
6.72
1.60
2.23
2.31
1.40
29
4.19
6.23
6.24
7.30
9.12
9.10
8.75
6.52
1.48
2.06
2.42
1.36
30
4.26
6.30
6.17
7.30
9.14
9.10
8.68
6.17
1.41
1.90
1.32
31
6.37
7.29
8.87
8.64
1.33
1.74
1.29
----------
--------------
Mean
2.48
5.75
6.55
6.78
8.24
9.05
9.04
7.76
2.95
2.04
2.25
1.86
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Max
4.26
6.48
6.81
7.32
9.14
9.10
9.17
8.61
5.86
2.50
2.65
2.45
9.17
Min
1.28
4.37
6.17
5.97
7.29
9.02
8.64
6.17
1.33
1.38
1.72
1.29
1.28
9.17
m. (A.D.) ,
0.00
m. (A.D.) ,
River Bed -0.20
m. (MSL)
8.39
m. (A.D.) ,
9.35
m. (A.D.) ,
Drainage Area
Square Kilometers
at 12.00 Hours , on Oct 13 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation