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WATER YEAR : 2013
SOUTHERN PENINSULA EAST COAST
Khlong Thadee at Ban Na Pa , Nakhon Si Thammarat (X.203)
Lat 08 - 23 - 39 N Long 99 - 54 - 55 E
Locat on : on e t an at Ban Na Pa.
120
sq.km.
Water - stage recorder
+0.000 m. (MSL.)
B.M.-H.D.
On left bank near the gage site.
Elevation
Recording
Drainge Area
Location BM
Gage Reading Frequency
Zero Gage at Bottom
+11.529 m. (MSL.)
Bench Mark
Type of Gage
Amphoe
Mueang
Changwat
Nakhon Si Thammarat
Ban
Na Pa
Arithmetic mean of 24 readings
2000 to date
2000 to date
-
2000 to date
Fairly stable.
No overbank flow.
Rating Operation
Period of Rating
Rated by Flot
Period of Available Gage Records
Basis of Mean Daily Gage Height
Rated by Current Meter
Stability of Channel Regimes
Overbank Flow Conditions
Records fair. Stage-discharge relation defined by 23 discharge measurements made in 2013.
Date
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Annual
----------
-----------------
1
7.62
7.72
7.63
7.51
8.01
7.65
7.83
8.04
10.24
7.90
7.63
7.50
2
7.65
7.82
7.71
7.50
7.75
7.99
7.71
7.98
9.61
7.90
7.62
7.50
3
7.67
8.12
7.65
7.50
7.70
7.63
7.63
7.94
9.30
7.90
7.61
7.50
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Gage Height in Meter (MSL.) Water Year April 1, 2013 to March 31, 2014
General Description
4
7.64
8.02
7.63
7.60
7.68
7.55
7.60
7.90
9.12
7.90
7.61
7.50
5
7.66
7.83
7.56
7.83
7.65
7.48
7.61
7.88
10.50
7.90
7.60
7.50
6
7.74
7.83
7.52
7.65
7.62
7.68
7.76
7.84
10.49
7.89
7.60
7.50
7
7.71
8.20
7.52
7.53
7.77
7.68
7.69
7.81
10.54
7.88
7.60
7.50
8
7.63
7.90
7.52
7.50
7.62
7.60
7.79
7.80
10.14
7.84
7.60
7.50
9
7.57
7.79
7.52
7.50
7.63
7.63
7.92
7.78
9.49
7.80
7.60
7.50
10
7.53
7.75
7.52
7.48
7.58
7.58
7.73
7.82
9.14
7.91
7.60
7.50
11
7.53
8.03
7.52
7.46
7.54
7.53
7.69
8.12
8.94
7.97
7.57
7.50
12
7 57
7 89
7 53
7 46
7 57
7 54
7 73
8 71
8 82
7 91
7 55
7 50
.
.
.
.
.
.
.
.
.
.
.
.
13
8.48
7.92
7.65
7.43
7.80
7.70
8.09
8.13
8.73
7.99
7.69
7.50
14
9.14
7.84
8.10
7.46
7.65
7.69
7.86
7.93
8.58
8.84
7.71
7.50
15
8.09
7.71
8.28
7.47
7.55
7.56
7.73
7.87
8.50
8.35
7.67
7.50
16
7.91
7.67
7.92
7.44
7.50
7.50
7.70
7.80
8.77
8.14
7.63
7.50
17
7.88
7.72
7.81
7.44
7.51
7.51
7.72
7.86
8.56
8.02
7.59
7.63
18
7.82
8.12
7.80
7.44
7.50
7.50
8.72
8.02
8.55
8.00
7.58
7.69
19
7.72
7.79
7.85
7.49
7.48
7.51
8.57
8.73
8.34
8.00
7.58
7.65
20
7.66
7.69
7.94
7.50
7.46
7.53
8.31
8.67
8.26
7.99
7.57
7.65
21
7.79
7.64
7.74
7.50
7.45
7.91
8.48
9.09
8.17
7.97
7.57
7.65
22
8.45
7.64
7.66
7.46
7.45
7.74
8.62
10.62
8.08
7.96
7.56
7.64
23
7.86
7.64
7.62
7.82
7.45
7.68
8.12
10.68
8.01
7.93
7.54
7.61
24
7.75
7.64
7.62
7.71
7.44
7.61
7.94
10.39
8.00
7.88
7.52
7.58
25
7.70
7.64
7.58
7.77
7.44
7.53
8.08
9.67
8.02
7.83
7.51
7.56
26
7.70
7.65
7.54
7.62
7.44
7.49
8.02
9.14
8.01
7.74
7.51
7.55
27
7.76
7.65
7.52
7.51
7.43
7.49
8.21
8.86
8.00
7.69
7.50
7.55
28
7.96
7.66
7.52
7.50
7.43
7.49
8.84
8.85
7.97
7.67
7.50
7.55
29
7.85
7.67
7.52
7.50
7.42
7.63
8.14
10.16
7.92
7.66
7.55
30
7.80
7.68
7.52
7.50
7.42
8.07
8.04
10.58
7.90
7.65
7.55
31
7.68
7.54
7.42
8.02
7.90
7.65
7.55
----------
--------------
Mean
7.83
7.79
7.67
7.54
7.56
7.62
8.00
8.62
8.79
7.92
7.59
7.55
Max
9.14
8.20
8.28
7.83
8.01
8.07
8.84
10.68
10.54
8.84
7.71
7.69
10.68
Min
7.53
7.64
7.52
7.43
7.42
7.48
7.60
7.78
7.90
7.65
7.50
7.50
7.42
10.73
m. (MSL.) ,
0.00
m. (MSL.) ,
River Bed 7.27
m. (MSL.)
12.30
m. (MSL.) ,
12.23
m. (MSL.) ,
Drainage Area 120 Square Kilometers
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at 07.00 Hours , on Nov 23 , 2013
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation