Basic HTML Version
588
Location : on left bank at the bridge on highway.
1,100
sq.km.
WATER YEAR : 2011
EAST COAST - GULF BASIN
Chanthaburi River at Ban Bang Cha Ai , Chanthaburi (Z.55)
Lat 12 - 42 - 26 N Long 102 - 10 - 53 E
Amphoe
Makham
Changwat
Chanthaburi
Ban
Bang Cha Ai
Drainge Area
Staff gage
+1.739 m. (MSL.)
B.M.-H.D.
On left bank near the gage site.
Elevation
5-time daily readings at 06.00, 09.00, 12.00, 15.00 and 18.00 hours.
Arithmetic means of 5 readings
2008 to date
+8.680 m. (MSL.)
Bench Mark
Type of Gage
Rating Operation
Period of Available Gage Records
Location BM
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
2008 to date
-
2008 to date
Fairly stable because of backwater effect.
No overbank flow.
Records fair. Stage-discharge relation defined by 19 discharge measurements made in 2011.
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
2.99
3.04
3.04
4.63
5.82
5.44
4.95
3.22
2.88
2.79
2.99
2.78
2
2.99
3.04
3.04
4.20
7.10
5.34
5.05
3.19
2.84
2.78
2.91
2.93
3
2.99
2.99
2.99
3.98
7.17
4.82
4.94
3.16
2.84
2.65
2.98
2.93
4
2.99
2.99
2.99
4.42
5.99
5.21
4.54
3.09
2.94
2.65
3.04
2.98
5
2.99
2.99
2.99
3.83
4.74
5.27
4.74
3.13
3.04
2.64
3.01
2.95
6
2.99
2.99
2.99
3.62
4.18
5.24
5.80
3.05
3.03
2.66
2.92
3.00
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
2.99
2.94
2.99
3.49
4.16
4.72
5.26
3.04
2.99
2.65
2.99
3.04
8
2.99
2.94
3.03
3.37
4.50
5.04
5.06
3.04
2.86
2.84
2.99
3.06
9
2.99
2.94
2.94
3.47
4.64
5.72
4.98
3.06
2.88
2.86
2.98
3.05
10
2.99
2.94
2.94
3.47
4.64
5.95
5.15
3.05
3.00
2.85
2.95
3.04
11
2.99
2.94
2.95
3.26
5.64
6.42
4.90
3.05
3.08
2.85
2.89
3.06
12
2.99
2.94
2.98
3.17
5.56
8.99
4.62
3.00
3.06
2.83
2.84
3.07
13
2.99
2.94
2.99
3.39
5.20
8.82
5.43
3.10
2.96
2.88
2.93
3.02
14
2.99
2.94
2.99
3.26
4.71
8.21
5.72
3.11
2.85
2.78
2.75
3.14
15
2.99
2.94
2.99
3.41
4.79
6.64
5.43
3.06
2.84
2.74
2.74
3.09
16
2.99
2.94
2.99
3.60
7.54
5.85
5.24
3.02
2.81
2.66
2.74
3.09
17
3.04
2.94
3.04
3.48
7.79
5.27
6.11
2.98
2.80
2.68
2.78
3.11
18
3.04
2.94
3.09
3.45
6.94
4.78
5.59
2.94
2.79
2.64
2.79
3.07
19
3.04
2.99
3.14
3.25
5.68
4.47
5.35
3.10
2.77
2.79
2.95
2.93
20
3.04
3.04
3.54
3.95
5.29
5.77
4.23
3.08
2.93
2.94
3.00
2.90
21
3.02
3.04
3.41
3.89
4.71
6.63
4.07
3.03
2.93
2.97
2.99
2.82
22
2.99
3.04
3.48
4.51
4.60
6.52
3.98
2.98
2.89
2.94
3.00
2.93
23
2.99
3.04
3.77
4.42
3.99
6.09
4.57
2.97
2.85
3.02
3.03
2.93
24
2.98
3.04
4.82
5.09
3.87
6.71
4.55
2.89
2.79
3.04
3.02
2.94
25
3.01
3.04
5.41
4.48
3.90
6.98
3.54
2.85
2.78
3.03
2.92
3.03
26
3.04
3.04
4.15
4.17
3.72
7.14
3.42
3.04
2.83
2.95
2.86
2.96
27
3.04
3.09
3.71
4.66
4.19
6.59
3.45
3.04
2.84
2.97
2.77
2.90
28
3.04
3.09
3.69
3.87
4.38
6.40
3.44
3.02
2.84
3.01
2.77
2.87
29
3.04
3.09
3.88
4.85
6.34
5.57
3.40
2.95
2.84
2.92
2.79
2.79
30
2.96
3.09
3.58
5.94
6.46
5.94
3.33
2.93
2.84
2.94
2.81
31
3.14
5.51
6.08
3.28
2.86
3.04
2.77
----------
--------------
Mean
3.00
3.00
3.35
4.00
5.30
6.08
4.65
3.04
2.89
2.84
2.91
2.97
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Max
3.04
3.14
5.41
5.94
7.79
8.99
6.11
3.22
3.08
3.04
3.04
3.14
8.99
Min
2.96
2.94
2.94
3.17
3.72
4.47
3.28
2.85
2.77
2.64
2.74
2.77
2.64
9.04
m. (MSL.) ,
1.74
m. (MSL.) ,
River Bed -1.61
m. (MSL)
9.44
m. (MSL.) ,
9.87
m. (MSL.) ,
Drainage Area 1100 Square Kilometers
at 18.00 Hours, on Sep 12, 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation