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656
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l f b k
WATER YEAR : 2013
SOUTHERN PENINSULA EAST COAST
Khlong Klai at Ban Hua Na , Nakhon Si Thammarat (X.149)
Lat 08 - 43 - 46 N Long 99 - 44 - 53 E
Locat on : on e t an at Ban Hua Na.
475
sq.km.
Staff gage
+0.000 m. (MSL.)
B.M.-H.D.
On left bank near the station office.
Elevation
5-time daily readings at 06.00, 09.00, 12.00, 15.00 and 18.00 hours.
Amphoe
Nopphitam
Changwat
Nakhon Si Thammarat
Ban
Hua Na
Gage Reading Frequency
Zero Gage at Bottom
+34.588 m. (MSL.)
Type of Gage
Bench Mark
Location BM
Drainge Area
Arithmetic mean of 5 readings
1984 to date.
1984 to date.
-
1984 to date.
Fairly stable.
No overbank flow.
Basis of Mean Daily Gage Height
Rated by Current Meter
Stability of Channel Regimes
Overbank Flow Conditions
Rating Operation
Period of Rating
Rated by Flot
Period of Available Gage Records
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
28.92
29.18
29.14
29.17
29.42
29.13
29.08
29.19
30.35
29.22
29.13
29.03
2
28.91
29.38
29.56
29.17
29.19
29.10
29.05
29.14
30.00
29.25
29.13
29.02
3
28.91
29.24
29.26
29.18
29.17
29.07
29.05
29.14
29.84
29.25
29.12
29.02
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Gage Height in Meter (MSL.) Water Year April 1, 2013 to March 31, 2014
General Description
4
28.90
29.22
29.20
29.18
29.15
29.06
29.08
29.10
29.72
29.22
29.12
29.01
5
28.90
29.15
29.19
29.21
29.15
29.26
29.05
29.08
29.71
29.21
29.11
29.01
6
28.92
29.21
29.15
29.27
29.15
29.24
29.06
29.10
29.76
29.21
29.11
29.06
7
28.91
29.40
29.12
29.19
29.14
29.23
29.07
29.11
29.83
29.20
29.10
29.05
8
28.90
29.19
29.11
29.15
29.14
29.24
29.13
29.11
29.69
29.16
29.09
29.05
9
28.90
29.26
29.10
29.12
29.14
29.21
29.10
29.29
29.63
29.17
29.09
29.05
10
28.89
29.15
29.09
29.10
29.13
29.25
29.11
29.26
29.58
29.20
29.08
29.04
11
28.91
29.14
29.08
29.09
29.12
29.15
29.08
29.33
29.52
29.25
29.08
29.04
12
29 17
29 13
29 11
29 08
29 14
29 16
29 11
29 22
29 54
29 22
29 07
29 04
.
.
.
.
.
.
.
.
.
.
.
.
13
29.95
29.09
29.21
29.34
29.26
29.21
29.15
29.13
29.50
29.18
29.07
29.04
14
29.50
29.07
29.28
29.40
29.18
29.13
29.08
29.10
29.44
29.33
29.06
29.03
15
29.29
29.05
29.51
29.20
29.15
29.10
29.09
29.09
29.40
29.84
29.06
29.03
16
29.19
29.09
29.38
29.16
29.12
29.10
29.08
29.09
29.39
29.42
29.06
29.05
17
29.25
29.08
29.33
29.15
29.10
29.08
29.07
29.30
29.43
29.34
29.06
29.08
18
29.20
29.37
29.34
29.19
29.12
29.07
29.35
29.29
29.39
29.27
29.05
29.07
19
29.12
29.25
29.28
29.17
29.09
29.05
29.29
29.37
29.35
29.25
29.05
29.06
20
29.06
29.13
29.29
29.12
29.07
29.08
29.26
29.48
29.32
29.23
29.05
29.05
21
29.14
29.09
29.22
29.10
29.06
29.10
29.39
29.94
29.30
29.22
29.05
29.05
22
29.26
29.18
29.22
29.13
29.05
29.08
29.32
30.93
29.28
29.20
29.05
29.04
23
29.13
29.22
29.18
29.21
29.05
29.08
29.21
31.67
29.27
29.18
29.05
29.04
24
29.11
29.35
29.15
29.16
29.04
29.07
29.15
30.46
29.27
29.17
29.04
29.04
25
29.06
29.22
29.13
29.17
29.08
29.05
29.19
30.06
29.26
29.18
29.04
29.03
26
29.10
29.31
29.12
29.12
29.05
29.04
29.25
29.78
29.25
29.18
29.04
28.97
27
29.08
29.19
29.19
29.10
29.05
29.02
29.29
29.64
29.24
29.17
29.03
29.02
28
29.21
29.18
29.13
29.08
29.05
29.02
29.42
29.70
29.24
29.17
29.03
29.02
29
29.11
29.16
29.11
29.08
29.06
29.05
29.48
30.58
29.22
29.16
29.02
30
29.07
29.15
29.10
29.07
29.16
29.21
29.28
30.80
29.22
29.15
29.01
31
29.16
29.08
29.09
29.20
29.24
29.14
29.01
----------
--------------
Mean
29.10
29.19
29.21
29.16
29.12
29.12
29.18
29.58
29.49
29.24
29.07
29.03
Max
29.95
29.40
29.56
29.40
29.42
29.26
29.48
31.67
30.35
29.84
29.13
29.08
31.67
Min
28.89
29.05
29.08
29.07
29.04
29.02
29.05
29.08
29.22
29.14
29.03
28.97
28.89
32.39
m. (MSL.) ,
0.00
m. (MSL.) ,
River Bed 27.72
m. (MSL.)
35.96
m. (MSL.) ,
35.96
m. (MSL.) ,
Drainage Area 475 Square Kilometers
at 04.00 Hours , on Nov 23 , 2013
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation
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