Basic HTML Version
570
Location : on left bank at the bridge on highway.
200
sq.km.
WATER YEAR : 2012
EAST COAST - GULF BASIN
Khlong Nak at Ban Bo Rai , Trat (Z.59)
Lat 12 - 21 - 45 N Long 102 - 32 - 38 E
Drainge Area
Amphoe
Makham
Changwat
Chanthaburi
Ban
Bo Rai
Water - stage recorder
+16.570 m. (MSL.)
B.M.-H.D.
On left bank near the gage site.
Elevation
Recording
Arithmetic mean of 24 readings
2010 to date
Rating Operation
Period of Available Gage Records
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+24.570 m. (MSL.)
Type of Gage
Bench Mark
Location BM
2010 to date
-
2010 to date
Rather unstable.
No overbank flow.
Records good. Stage-discharge relation defined by 13 discharge measurements made in 2012.
Rated by Current Meter
Stability of Channel Regimes
Overbank Flow Conditions
General Description
Period of Rating
Rated by Flot
Date
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Annual
----------
-----------------
1
21.85
21.88
20.63
20.28
20.73
20.34
20.43
21.93
21.97
21.87
21.87
21.88
2
21.85
21.86
20.50
20.84
20.78
20.33
20.20
21.92
21.94
21.87
21.87
21.87
3
21.85
21.85
20.29
20.79
20.72
20.63
20.12
21.92
21.92
21.87
21.87
21.86
4
21.85
21.84
21.72
20.52
20.46
20.52
20.84
21.91
21.92
21.87
21.87
21.85
5
21.86
21.83
20.76
20.39
20.26
20.37
20.79
21.91
21.92
21.87
21.87
21.85
6
21.92
21.81
20.38
20.44
20.22
20.36
20.81
21.91
21.91
21.87
21.87
21.86
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (MSL.) Water Year April 1, 2012 to March 31, 2013
7
21.94
20.53
20.65
20.36
20.12
20.40
20.36
21.92
21.91
21.87
21.87
21.85
8
21.91
21.54
20.56
20.42
20.19
20.68
20.38
21.92
21.91
21.87
21.87
21.85
9
21.96
21.92
20.64
20.44
20.33
20.43
20.39
21.92
21.90
21.87
21.87
21.85
10
21.94
21.91
20.30
20.58
20.42
20.39
20.21
21.92
21.90
21.88
21.87
21.90
11
21.90
21.93
20.17
20.68
20.39
20.36
20.14
21.91
21.90
21.88
21.87
21.89
12
21.88
21.82
20.34
20.65
20.06
20.44
20.95
21.91
21.90
21.87
21.87
21.87
13
21.90
21.55
20.42
20.88
20.07
20.48
22.00
21.91
21.90
21.87
21.87
21.87
14
21.92
20.63
20.20
20.76
20.03
20.47
21.20
21.91
21.90
21.87
21.87
21.87
15
21.94
20.76
20.39
20.33
20.02
20.88
21.03
21.92
21.90
21.87
21.86
21.88
16
21.93
20.90
21.78
20.21
20.04
20.52
20.99
21.91
21.90
21.87
21.86
21.87
17
21.94
21.49
21.73
20.27
20.10
20.54
20.76
21.97
21.89
21.87
21.86
21.87
18
21.97
20.42
20.96
20.70
20.13
20.82
21.03
21.94
21.89
21.87
21.86
21.88
19
21.91
21.22
20.74
20.51
20.30
20.53
21.97
21.92
21.89
21.87
21.86
21.87
20
21.90
21.38
20.50
20.74
20.33
20.46
21.97
21.93
21.89
21.87
21.86
21.87
21
21.89
20.62
20.49
20.70
20.17
20.14
21.97
21.95
21.88
21.87
21.86
21.86
22
21.89
21.40
20.77
20.39
20.23
20.09
21.96
21.94
21.88
21.87
21.86
21.86
23
21.90
20.98
21.36
20.21
20.33
20.23
21.97
21.95
21.88
21.87
21.86
21.86
24
21.89
21.08
21.77
20.19
20.28
20.15
21.96
21.95
21.88
21.87
21.85
21.85
25
21.88
21.91
20.73
20.67
20.32
20.47
21.95
21.95
21.88
21.88
21.85
21.86
26
21.86
20.93
20.64
20.86
21.16
20.10
21.95
21.95
21.88
21.87
21.85
21.86
27
21.85
21.53
20.68
20.69
21.55
20.38
21.95
21.93
21.88
21.87
21.85
21.86
28
21.84
20.76
20.62
21.03
21.54
21.96
21.97
21.94
21.88
21.87
21.85
21.85
29
21.86
21.02
21.05
22.88
21.06
20.75
21.96
22.00
21.87
21.88
21.85
30
21.87
20.70
20.25
22.67
20.65
20.41
21.96
22.03
21.87
21.88
21.85
31
20.55
20.85
20.50
21.95
21.87
21.88
21.85
----------
--------------
Mean
21.90
21.31
20.73
20.71
20.44
20.49
21.23
21.93
21.90
21.87
21.86
21.86
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Max
21.97
21.93
21.78
22.88
21.55
21.96
22.00
22.03
21.97
21.88
21.87
21.90
22.88
Min
21.84
20.42
20.17
20.19
20.02
20.09
20.12
21.91
21.87
21.87
21.85
21.85
20.02
23.13
m. (MSL.) ,
16.57
m. (MSL.) ,
River Bed 16.68
m. (MSL.)
25.25
m. (MSL.) ,
25.29
m. (MSL.) ,
Drainage Area 200 Square Kilometers
at 21.00 Hours, on Jul 29, 2012
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation