Basic HTML Version
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WATER YEAR : 2013
TAPI RIVER BASIN
Tapi River at Ban Tha Pho , Nakhon Si Thammarat (X.195)
Lat 08 - 30 - 24 N Long 99 - 30 - 39 E
Locat on : on e t an at Ban T a P o.
488
sq.km.
Water - stage recorder
+0.000 m. (MSL.)
B.M.-H.D.
Near the top staff gage.
Elevation
Recording
+40.509 m. (MSL.)
Bench Mark
Type of Gage
Amphoe
Chawang
Changwat
Nakhon Si Thammarat
Ban
Tha Pho
Drainge Area
Location BM
Gage Reading Frequency
Zero Gage at Bottom
Arithmetic mean of 24 readings
1998 - 2006, 2011 to date
1998 - 2006, 2011 to date
-
1998 - 2006, 2011 to date
Fairly stable.
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 good. 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
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-----------------
1
32.71
32.85
32.89
33.26
33.68
33.48
33.66
33.22
34.99
33.12
32.75
32.63
2
32.72
32.82
32.95
33.32
33.63
33.53
33.62
33.17
34.61
33.12
32.75
32.62
3
32.72
32.86
32.90
33.46
33.59
33.55
33.61
33.13
34.55
33.12
32.74
32.62
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Gage Height in Meter (MSL.) Water Year April 1, 2013 to March 31, 2014
General Description
4
32.72
32.87
32.89
33.56
33.74
33.50
33.61
33.10
34.36
33.11
32.72
32.63
5
32.72
32.83
32.99
33.66
33.72
33.55
33.69
33.07
35.20
32.99
32.71
32.63
6
32.72
32.88
32.94
33.58
33.86
33.57
33.63
33.05
34.99
32.91
32.70
32.63
7
32.72
32.98
32.90
33.57
33.99
33.53
33.63
33.04
35.20
32.88
32.71
32.63
8
32.72
32.90
32.88
33.49
33.91
33.49
33.59
33.00
34.56
32.88
32.71
32.63
9
32.72
32.90
32.87
33.44
33.79
33.49
33.41
32.97
34.30
32.88
32.69
32.63
10
32.72
32.85
32.95
33.38
33.57
33.53
33.37
32.98
34.15
32.88
32.69
32.62
11
32.72
32.84
32.97
33.35
33.57
33.49
33.33
33.00
33.99
32.88
32.69
32.62
12
32 77
32 83
33 02
33 29
33 58
33 60
33 38
33 29
33 74
32 88
32 68
32 61
.
.
.
.
.
.
.
.
.
.
.
.
13
33.08
32.81
33.23
33.08
33.87
33.74
33.47
33.09
33.67
32.88
32.69
32.61
14
33.23
32.80
33.37
33.05
33.75
33.70
33.58
33.03
33.59
32.87
32.68
32.61
15
32.92
32.78
33.45
33.04
33.68
33.64
33.77
33.00
33.55
32.92
32.67
32.61
16
32.86
32.77
33.54
33.04
33.62
33.60
33.66
32.99
33.51
32.93
32.66
32.62
17
32.88
32.79
33.56
33.07
33.55
33.58
33.62
33.13
33.45
32.92
32.66
32.59
18
32.86
32.93
33.53
33.05
33.49
33.59
33.83
33.10
33.44
32.90
32.66
32.57
19
32.81
32.83
33.59
33.04
33.44
33.58
33.84
33.18
33.38
32.88
32.65
32.58
20
32.79
32.80
33.60
33.01
33.40
33.78
33.85
33.80
33.35
32.87
32.65
32.60
21
32.77
32.80
33.49
32.98
33.37
33.91
33.97
34.00
33.32
32.83
32.64
32.60
22
32.85
32.82
33.43
32.98
33.38
33.81
33.90
35.01
33.30
32.82
32.64
32.58
23
32.80
32.91
33.38
33.18
33.34
33.79
33.70
36.80
33.27
32.82
32.64
32.58
24
32.78
33.03
33.34
33.13
33.35
33.74
33.32
35.55
33.25
32.82
32.64
32.57
25
32.79
33.02
33.32
33.14
33.38
33.70
33.23
34.65
33.23
32.82
32.64
32.56
26
32.79
32.97
33.29
33.09
33.38
33.67
33.23
34.32
33.21
32.82
32.63
32.57
27
32.83
32.91
33.40
33.04
33.34
33.65
33.20
34.22
33.20
32.82
32.63
32.56
28
32.83
32.92
33.33
33.01
33.30
33.65
33.35
34.13
33.18
32.82
32.63
32.56
29
32.81
32.90
33.30
32.98
33.40
33.66
33.70
34.47
33.17
32.81
32.56
30
32.82
32.90
33.27
32.97
33.50
33.76
33.40
35.18
33.16
32.80
32.56
31
32.94
33.04
33.53
33.28
33.15
32.80
32.56
----------
--------------
Mean
32.81
32.87
33.22
33.20
33.57
33.63
33.56
33.69
33.81
32.90
32.68
32.60
Max
33.23
33.03
33.60
33.66
33.99
33.91
33.97
36.80
35.20
33.12
32.75
32.63
36.80
Min
32.71
32.77
32.87
32.97
33.30
33.48
33.20
32.97
33.15
32.80
32.63
32.56
32.56
37.45
m. (MSL.) ,
0.00
m. (MSL.) ,
River Bed 32.02
m. (MSL.)
40.13
m. (MSL.) ,
40.16
m. (MSL.) ,
Drainage Area 488 Square Kilometers
at 12.00 Hours , on Nov 23 , 2013
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation
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