Basic HTML Version
670
i
l f b k
i
WATER YEAR : 2013
SOUTHERN PENINSULA EAST COAST
Khlong Rap Ro at Ban Hat Nai , Chumphon (X.248)
Lat 10 - 38 - 16 N Long 99 - 03 - 01 E
Locat on : on e t an at Ban Hat Na .
691
sq.km.
Staff gage
+16.734 m. (MSL.)
B.M.-H.D.
Near the automatic gage building.
Elevation
5-time daily readings at 06.00, 09.00, 12.00, 15.00 and 18.00 hours.
Drainge Area
Location BM
Gage Reading Frequency
Zero Gage at Bottom
+31.337 m. (MSL.)
Bench Mark
Type of Gage
Amphoe
Tha Sae
Changwat
Chumphon
Ban
Hat Nai
Arithmetic mean of 5 readings
2006 to date
2006 to date
-
2006 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
18.11
18.23
18.13
18.64
19.96
18.40
18.70
18.47
18.59
18.30
18.18
18.09
2
18.06
18.21
18.13
18.59
19.43
18.37
18.65
18.46
18.55
18.30
18.17
18.08
3
18.07
18.20
18.12
18.55
18.93
18.36
18.60
18.44
18.52
18.29
18.17
18.07
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (MSL.) Water Year April 1, 2013 to March 31, 2014
General Description
4
18.22
18.20
18.12
18.51
18.80
18.33
18.60
18.43
18.51
18.29
18.17
18.06
5
18.14
18.20
18.13
18.47
18.75
18.38
18.58
18.42
18.48
18.28
18.16
18.06
6
18.07
18.20
18.13
18.45
18.69
18.47
18.64
18.39
18.47
18.28
18.16
18.05
7
18.07
18.50
18.18
18.43
18.65
18.45
19.01
18.37
18.47
18.28
18.16
18.05
8
18.07
18.27
18.17
18.42
18.62
18.42
19.50
18.44
18.46
18.27
18.15
18.04
9
18.06
18.16
18.16
18.41
18.57
18.41
19.20
18.61
18.45
18.27
18.15
18.04
10
18.06
18.23
18.15
18.39
18.59
18.43
18.94
18.61
18.44
18.27
18.15
18.03
11
18.05
18.22
18.12
18.47
18.54
18.48
18.80
18.47
18.43
18.27
18.15
18.03
12
18 46
18 22
18 16
18 53
18 68
18 52
18 74
18 38
18 42
18 26
18 15
18 03
.
.
.
.
.
.
.
.
.
.
.
.
13
18.75
18.33
18.58
18.48
18.76
18.47
18.69
18.39
18.41
18.26
18.14
18.02
14
18.84
18.28
18.79
18.82
18.69
18.46
18.67
18.35
18.40
18.26
18.14
18.02
15
18.87
18.22
18.49
19.04
18.62
18.45
18.62
18.34
18.39
18.26
18.13
18.02
16
18.47
18.18
18.46
19.12
18.57
18.42
18.60
18.35
18.39
18.26
18.12
18.01
17
18.27
18.16
18.43
18.91
18.51
18.71
18.57
18.55
18.38
18.25
18.12
18.01
18
18.18
18.15
18.34
19.39
18.45
19.13
18.55
18.52
18.38
18.25
18.12
18.01
19
18.18
18.15
18.38
21.02
18.42
19.29
18.55
18.47
18.38
18.24
18.11
18.01
20
18.19
18.19
18.49
20.71
18.42
19.60
18.55
18.40
18.38
18.24
18.11
18.00
21
18.18
18.27
18.59
20.86
18.41
20.00
18.54
18.37
18.38
18.23
18.11
18.00
22
18.17
18.25
18.67
20.84
18.41
20.38
18.52
18.38
18.38
18.23
18.11
18.00
23
18.17
18.23
18.80
21.05
18.60
20.79
18.48
20.95
18.37
18.22
18.11
18.00
24
18.16
18.15
18.70
20.64
18.72
20.67
18.46
21.09
18.35
18.21
18.11
18.00
25
18.16
18.14
18.64
19.95
18.56
19.98
18.43
19.43
18.35
18.21
18.10
18.10
26
18.15
18.15
18.62
19.20
18.52
19.28
18.48
19.10
18.34
18.21
18.10
18.14
27
18.30
18.15
18.64
18.79
18.49
18.97
18.51
18.89
18.34
18.21
18.10
18.13
28
18.53
18.15
18.73
18.70
18.46
18.91
18.51
18.71
18.33
18.20
18.09
18.13
29
18.32
18.14
18.72
18.69
18.44
18.88
18.51
18.64
18.33
18.20
18.12
30
18.28
18.14
18.71
18.67
18.41
18.84
18.50
18.61
18.32
18.20
18.12
31
18.13
18.69
18.38
18.50
18.32
18.20
18.11
----------
--------------
Mean
18.25
18.21
18.42
19.14
18.65
18.94
18.65
18.70
18.41
18.25
18.13
18.05
Max
18.87
18.50
18.80
21.05
19.96
20.79
19.50
21.09
18.59
18.30
18.18
18.14
21.09
Min
18.05
18.13
18.12
18.39
18.38
18.33
18.43
18.34
18.32
18.20
18.09
18.00
18.00
21.92
m. (MSL.) ,
16.73
m. (MSL.) ,
River Bed 16.70
m. (MSL.)
27.36
m. (MSL.) ,
27.35
m. (MSL.) ,
Drainage Area 691 Square Kilometers
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
at 02.00 Hours , on Nov 24 , 2013
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation