Basic HTML Version
256
Location : on right bank at Ban Thap Dua.
1,661
sq.km.
WATER YEAR : 2011
PING RIVER BASIN
Ping River at Ban Thap Dua, Chiang Mai (P.90)
Lat 19 - 12 - 54 N Long 98 - 58 - 20 E
Amphoe
Mae Taeng
Changwat
Chiang Mai
Ban
Thap Dua
Drainge Area
Water - stage recorder
+343.338 m. (MSL.)
B.M.-H.D.
On right bank near the gage site.
Elevation
Recording
Arithmetic means of 24 readings
2011 to date
+348.850 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
2011 to date
-
2011 to date
Fairly stable because of backwater effect.
Overbank flow starts at elevation +346.410 m.(MSL.) and is including overbank flow.
Records fair. Stage-discharge relation defined by 36 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
343.83
344.17
344.20
344.22
346.01
345.12
345.64
344.15
344.12
344.03
343.94
343.91
2
343.82
344.35
344.10
344.42
345.53
345.04
345.57
344.14
344.11
344.03
343.94
343.91
3
343.83
344.44
344.26
344.36
345.40
345.01
345.36
344.14
344.11
344.03
343.94
343.92
4
343.83
344.59
344.60
344.24
345.11
344.83
345.35
344.11
344.11
344.03
343.94
343.94
5
343.82
344.49
344.39
344.19
344.89
344.94
345.34
344.04
344.11
344.03
343.94
343.97
6
343.82
344.52
344.37
344.13
344.80
345.89
345.26
344.04
344.10
344.02
343.94
343.94
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
343.82
344.16
344.39
344.12
344.81
345.65
345.03
344.06
344.06
344.01
343.95
343.94
8
343.82
344.13
344.24
344.12
344.67
345.32
344.87
344.18
344.11
344.01
343.94
343.94
9
343.81
344.21
344.15
344.13
344.79
345.08
344.72
344.23
344.11
344.01
343.92
343.94
10
343.81
344.68
344.13
344.14
344.91
345.00
344.57
344.11
344.11
344.00
343.93
343.94
11
343.82
344.41
344.14
344.13
345.23
344.90
344.24
344.05
344.10
344.00
343.92
343.94
12
343.83
344.24
344.16
344.10
345.45
344.87
343.91
344.01
344.10
344.01
343.92
343.94
13
343.86
344.19
344.29
344.06
345.37
345.21
343.96
343.94
344.09
344.04
343.92
343.98
14
343.90
344.09
344.43
344.29
345.11
345.18
344.25
343.94
344.05
344.15
343.92
343.96
15
343.92
344.05
344.31
344.35
344.79
345.35
343.91
343.94
344.07
344.10
343.92
344.03
16
343.85
344.04
344.24
344.95
344.81
345.10
344.23
343.94
344.04
344.04
343.92
344.02
17
343.83
344.11
344.20
344.89
344.72
345.04
344.81
343.94
344.04
344.04
343.92
343.99
18
343.82
344.36
344.14
344.86
345.09
345.03
344.03
343.94
344.04
344.03
343.92
343.94
19
343.86
344.57
344.15
344.57
345.30
345.03
344.04
343.94
344.04
344.02
343.92
343.94
20
343.91
344.48
344.15
344.46
344.85
345.04
343.90
343.94
344.04
344.01
343.93
343.94
21
343.96
344.26
344.16
344.52
345.17
345.05
343.84
343.94
344.04
344.01
343.92
343.94
22
344.08
344.15
344.25
344.40
345.37
345.46
343.82
343.93
344.04
344.01
343.92
343.96
23
344.25
344.10
344.15
344.33
345.08
345.29
343.74
343.93
344.04
343.99
343.92
343.94
24
344.58
344.04
344.13
344.53
344.97
345.26
343.74
343.94
344.04
343.94
343.92
343.93
25
345.01
344.04
344.15
344.72
345.55
346.11
343.74
343.94
344.04
343.94
343.92
343.94
26
344.33
344.05
344.36
344.47
347.09
345.32
343.80
343.98
344.06
343.94
343.92
343.94
27
344.36
344.09
344.74
344.34
345.81
346.19
344.35
344.11
344.04
343.94
343.92
343.94
28
344.22
344.15
344.47
344.24
345.68
346.10
344.20
344.12
344.04
343.94
343.91
343.94
29
344.51
344.24
344.31
344.22
345.44
346.68
344.14
344.12
344.04
343.94
343.91
343.95
30
344.33
344.68
344.25
344.15
345.27
345.89
344.17
344.13
344.04
343.95
344.01
31
344.44
344.47
345.14
344.23
344.04
343.94
344.01
----------
--------------
Mean
344.01
344.27
344.27
344.36
345.23
345.33
344.41
344.03
344.07
344.01
343.93
343.95
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Max
345.01
344.68
344.74
344.95
347.09
346.68
345.64
344.23
344.12
344.15
343.95
344.03
347.09
Min
343.81
344.04
344.10
344.06
344.67
344.83
343.74
343.93
344.04
343.94
343.91
343.91
343.74
348.28
m. (MSL.) ,
343.34
m. (MSL.) ,
River Bed 343.30
m. (MSL)
347.66
m. (MSL.) ,
346.40
m. (MSL.) ,
Drainage Area 1661 Square Kilometers
at 10.00 Hours , on Aug 26 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation