Basic HTML Version
220
Location : on left bank at the bridge on highway.
1,634
sq.km.
WATER YEAR : 2012
Amphoe
San Pa Tong
Changwat
Chiang Mai
Ban
Klang
PING RIVER BASIN
Nam Mae Khan at Ban Klang , Chiang Mai (P.71A)
Lat 18 - 32 - 50 N Long 98 - 51 - 44 E
Drainge Area
Water - stage recorder
+283.285 m. (MSL.)
B.M.-H.D.
On left bank about 3 meters from the top staff gage.
Elevation
Recording
Arithmetic mean of 24 readings
1996 to date
Rating Operation
Period of Available Gage Records
Bench Mark
Location BM
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
Type of Gage
+287.570 m. (MSL.)
1996 to date
-
1996 to date
Fairly stablebecause of backwater effect.
No overbank flow
Records fair. The concrete weir made by R.I.D. about 3 kilometers
and the temporary weir about 300 meters downstream from the gage site.
Stage-discharge relation defined by 43 discharge measurements made in 2012.
Period of Rating
Rated by Flot
Rated by Current Meter
Stability of Channel Regimes
Overbank Flow Conditions
General Description
Date
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Annual
----------
-----------------
1
284.66
284.32
284.65
284.25
284.53
284.93
285.70
284.95
284.99
284.56
284.74
284.69
2
284.78
284.30
284.61
284.48
284.49
284.95
285.72
284.98
285.00
284.57
284.63
284.67
3
284.66
284.21
284.54
284.40
284.49
285.44
285.70
285.25
285.03
284.57
284.60
284.76
4
284.71
284.39
284.55
284.31
284.48
285.17
285.53
285.25
284.97
284.57
284.60
284.84
5
284.69
284.30
284.59
284.37
284.47
285.10
285.29
285.19
284.93
284.57
284.55
285.00
6
284.78
285.17
284.80
284.66
284.48
285.25
285.22
285.08
284.89
284.57
284.48
284.90
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (MSL.) Water Year April 1, 2012 to March 31, 2013
7
285.36
286.28
284.73
284.89
284.44
287.14
285.14
285.00
284.86
284.55
284.46
284.73
8
285.71
285.78
284.62
285.09
284.44
287.89
285.09
284.90
284.75
284.56
284.36
284.56
9
285.12
285.58
284.60
285.00
284.73
286.66
285.04
284.94
284.79
284.54
284.29
284.53
10
284.88
285.43
284.67
284.62
285.31
286.38
285.03
284.91
284.76
284.54
284.26
284.53
11
284.63
284.98
284.61
284.82
284.73
286.37
285.04
284.86
284.69
284.52
284.24
284.55
12
284.58
284.71
284.52
284.56
284.77
285.96
285.06
284.85
284.59
284.52
284.22
284.56
13
284.51
284.60
284.57
284.49
284.80
285.79
285.08
284.92
284.59
284.51
284.21
284.52
14
284.41
284.57
284.48
284.49
284.74
286.49
285.10
285.09
284.53
284.49
284.18
284.51
15
284.36
284.55
284.43
284.49
284.64
286.70
285.07
284.93
284.54
284.49
284.15
284.49
16
284.37
284.53
284.37
284.48
284.62
286.52
284.89
284.85
284.49
284.51
284.16
284.49
17
284.33
284.51
284.32
284.44
284.63
286.51
284.84
284.88
284.49
284.57
284.18
284.49
18
284.29
284.42
284.29
284.44
284.64
285.86
284.85
284.90
284.49
284.51
284.22
284.49
19
284.27
284.28
284.29
284.47
284.62
285.49
284.81
284.91
284.42
284.54
284.34
284.49
20
284.27
284.34
284.31
284.62
284.73
285.45
284.79
284.93
284.39
284.55
284.45
284.49
21
284.30
284.56
284.34
284.53
285.36
285.55
284.78
284.96
284.39
284.58
284.62
284.48
22
284.34
284.79
284.36
284.49
285.06
285.66
284.74
284.96
284.39
284.54
284.52
284.44
23
284.34
284.93
284.36
284.50
285.34
285.43
284.69
284.89
284.39
284.47
284.52
284.44
24
284.31
284.98
284.33
284.61
284.92
285.25
284.69
284.89
284.42
284.47
284.54
284.46
25
284.29
285.01
284.29
285.42
285.15
285.19
284.67
284.83
284.57
284.44
284.53
284.51
26
284.32
285.03
284.28
284.99
285.21
285.19
284.67
284.69
284.57
284.35
284.54
284.49
27
284.30
284.97
284.24
284.72
285.38
285.27
284.67
284.78
284.57
284.29
284.56
284.49
28
284.34
284.83
284.22
284.66
285.40
285.88
284.67
284.86
284.57
284.29
284.58
284.47
29
284.34
284.59
284.19
284.61
285.90
285.83
284.70
284.89
284.57
284.29
284.45
30
284.32
284.72
284.20
284.57
285.62
285.79
284.77
284.93
284.57
284.29
284.43
31
284.84
284.56
285.19
284.75
284.57
284.40
284.41
----------
--------------
Mean
284.55
284.79
284.45
284.61
284.88
285.84
284.99
284.94
284.64
284.49
284.42
284.56
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Max
285.71
286.28
284.80
285.42
285.90
287.89
285.72
285.25
285.03
284.58
284.74
285.00
287.89
Min
284.27
284.21
284.19
284.25
284.44
284.93
284.67
284.69
284.39
284.29
284.15
284.41
284.15
288.13
m. (MSL.) ,
283.29
m. (MSL.) ,
River Bed 282.28
m. (MSL.)
290.10
m. (MSL.) ,
290.10
m. (MSL.) ,
Drainage Area 1634 Square Kilometers
at 09.00 Hours , on Sep 8 , 2012
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation