Basic HTML Version
686
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l f b k
WATER YEAR : 2013
TAPI RIVER BASIN
Lower Khlong I - Pan at Ban Arpart , Surat Thani (X.260)
Lat 08 - 32 - 28 N Long 99 - 13 - 25 E
Locat on : on e t an at Ban Arpart.
2,076
sq.km.
Water - stage recorder
+0.000 m. (MSL.)
B.M.-H.D.
On left bank near the top staff gage.
Elevation
Recording
+13.658 m. (MSL.)
Bench Mark
Type of Gage
Amphoe
Phrasaeng
Changwat
Surat Thani
Ban
Arpart
Drainge Area
Location BM
Gage Reading Frequency
Zero Gage at Bottom
Arithmetic mean of 24 readings
2007 to date
2007 to date
-
2007 to date
Fairly stable because of backwater effect.
No overbank flow.
Rated by Current Meter
Stability of Channel Regimes
Overbank Flow Conditions
Rating Operation
Period of Rating
Rated by Flot
Period of Available Gage Records
Basis of Mean Daily Gage Height
Records fair. Stage-discharge relation defined by 21 discharge measurements made in 2013.
Date
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Annual
----------
-----------------
1
5.57
6.58
6.30
6.58
7.45
7.40
7.61
8.87
10.37
6.65
5.78
5.78
2
5.57
6.49
6.27
6.71
8.71
8.25
7.64
8.57
10.30
6.55
5.76
5.70
3
5.56
6.39
6.24
6.89
9.76
9.05
7.50
8.09
10.25
6.47
5.75
5.60
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Gage Height in Meter (MSL.) Water Year April 1, 2013 to March 31, 2014
General Description
4
5.56
6.33
6.18
7.21
10.14
8.63
7.43
7.86
10.10
6.44
5.74
5.55
5
5.55
6.28
6.14
7.75
10.03
8.72
7.49
7.57
9.89
6.40
5.74
5.54
6
5.54
6.23
6.03
8.20
9.66
8.83
7.80
7.28
9.75
6.40
5.72
5.52
7
5.54
6.39
5.98
7.74
9.34
8.84
8.40
7.17
9.86
6.36
5.72
5.52
8
5.53
6.92
5.92
7.73
9.12
8.71
8.89
7.03
10.11
6.28
5.72
5.52
9
5.53
7.14
5.89
7.90
9.05
8.60
9.07
6.96
10.01
6.21
5.70
5.52
10
5.52
7.51
5.83
7.80
9.00
8.52
9.36
7.03
9.97
6.17
5.69
5.56
11
5.52
7.26
6.55
7.68
9.09
8.46
9.17
7.58
9.83
6.14
5.67
5.56
12
5 52
6 83
7 93
7 34
9 18
8 56
8 66
8 17
9 60
6 12
5 67
5 56
.
.
.
.
.
.
.
.
.
.
.
.
13
5.51
6.40
8.97
7.29
9.21
8.63
8.59
8.92
9.48
6.09
5.66
5.56
14
5.66
6.22
9.54
7.31
9.32
8.55
8.42
9.43
9.22
6.07
5.65
5.56
15
5.87
6.34
9.93
7.41
8.96
8.42
8.22
9.19
8.96
6.06
5.64
5.56
16
5.86
6.86
10.22
7.43
8.34
8.02
8.06
9.07
8.84
6.05
5.64
5.56
17
5.73
7.42
10.48
7.38
7.87
7.84
8.00
8.97
8.78
6.01
5.62
5.56
18
5.88
7.37
10.70
7.34
7.71
7.62
7.99
8.75
8.61
5.99
5.61
5.56
19
5.84
6.91
10.86
7.40
7.46
7.35
8.29
8.35
8.23
5.96
5.60
5.56
20
5.72
6.46
10.79
7.49
7.22
7.60
8.64
8.20
7.89
5.94
5.60
5.56
21
5.64
6.65
10.31
7.55
7.33
8.81
8.98
8.27
7.70
5.94
5.60
5.56
22
5.59
7.04
9.59
7.63
7.18
9.52
9.69
8.97
7.43
5.92
5.60
5.56
23
5.57
7.32
8.77
7.74
6.89
9.27
9.76
9.82
7.10
5.92
5.60
5.55
24
5.57
7.49
8.11
8.05
6.82
8.32
9.84
10.36
7.00
5.89
5.60
5.55
25
6.00
7.16
7.61
7.84
6.79
7.64
9.89
10.84
6.92
5.86
5.60
5.53
26
6.43
6.77
7.16
7.53
6.76
7.22
9.71
11.12
6.86
5.84
5.70
5.50
27
6.59
6.72
6.83
7.34
6.75
6.98
9.64
11.16
6.83
5.84
5.80
5.48
28
6.47
6.64
6.65
7.09
6.96
6.91
9.61
10.98
6.80
5.84
5.79
5.48
29
6.59
6.48
6.57
6.98
7.33
6.93
9.34
10.74
6.76
5.83
5.48
30
6.69
6.36
6.52
6.94
7.46
7.13
9.01
10.55
6.72
5.83
5.48
31
6.30
6.89
7.41
8.97
6.69
5.82
5.49
----------
--------------
Mean
5.79
6.75
7.83
7.42
8.20
8.18
8.70
8.86
8.61
6.09
5.68
5.55
Max
6.69
7.51
10.86
8.20
10.14
9.52
9.89
11.16
10.37
6.65
5.80
5.78
11.16
Min
5.51
6.22
5.83
6.58
6.75
6.91
7.43
6.96
6.69
5.82
5.60
5.48
5.48
11.20
m. (MSL.) ,
0.00
m. (MSL.) ,
River Bed 2.21
m. (MSL.)
13.60
m. (MSL.) ,
13.61
m. (MSL.) ,
Drainage Area 2076 Square Kilometers
at 03.00 Hours , on Nov 27 , 2013
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation
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