Basic HTML Version
230
Location : on left bank at Sop Soi Phatana Bridge.
14,814 sq.km.
WATER YEAR : 2011
PING RIVER BASIN
Ping River at Ban Sop Soi , Chiang Mai (P.73)
Lat 18 - 17 - 25 N Long 98 - 39 - 01 E
Amphoe
Chom Thong
Changwat
Chiang Mai
Ban
Sop Soi
Drainge Area
Water - stage recorder
+261.750 m. (MSL.)
B.M.-H.D.
On left bank about 15 meters from the abutment of the bridge.
Elevation
Recording.
Arithmetic means of 24 readings
1997 to date
Bench Mark
Location BM
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
Type of Gage
+267.505 m. (MSL.)
Rating Operation
Period of Available Gage Records
1997 to date
-
1998 to date
Fairly stable.
Overbank flow starts at elevation +267.730 m.(MSL.), records are channel flow only.
Records good. No gage height in the drought period.
Stage-discharge relation defined by 43 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
261.05
261.60
262.20
262.26
262.94
264.38
266.59
262.56
261.80
261.30
261.23
261.09
2
261.03
261.89
261.99
262.09
265.47
264.10
266.71
262.52
261.77
261.33
261.23
261.06
3
261.00
262.25
261.82
262.02
266.02
263.93
267.71
262.42
261.72
261.33
261.24
261.03
4
260.95
262.61
261.91
262.35
265.99
263.86
268.17
262.45
261.68
261.33
261.26
260.97
5
260.93
262.75
262.50
262.35
265.33
263.71
268.12
262.45
261.71
261.33
261.28
260.95
6
260.93
262.70
263.69
262.05
264.70
263.74
267.35
262.35
261.71
261.33
261.29
260.95
Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
7
260.93
262.79
263.83
261.83
264.16
265.58
266.27
262.25
261.71
261.33
261.24
260.93
8
260.96
262.63
263.17
261.77
263.76
266.16
265.35
262.23
261.67
261.33
261.22
260.90
9
261.10
262.46
262.61
261.83
263.39
265.36
264.75
262.23
261.65
261.30
261.14
260.91
10
261.16
262.61
262.25
261.63
263.24
265.63
264.39
262.28
261.64
261.23
261.11
260.91
11
261.25
264.12
262.26
261.86
263.32
265.35
264.18
262.46
261.62
261.21
261.09
260.91
12
261.28
263.90
261.94
262.06
263.70
265.17
264.61
262.36
261.60
261.24
261.10
260.97
13
261.26
262.77
261.96
261.88
263.92
265.45
264.31
262.24
261.58
261.18
261.12
261.07
14
261.30
262.37
261.97
261.81
264.01
266.27
263.47
262.15
261.58
261.27
261.19
261.17
15
261.39
262.26
262.00
261.94
263.81
266.73
263.41
262.07
261.55
261.50
261.37
261.18
16
261.52
262.41
261.95
262.65
263.75
266.11
263.33
262.05
261.52
261.64
261.36
261.25
17
261.42
262.93
261.90
263.03
263.80
265.51
264.04
262.03
261.52
261.68
261.41
261.24
18
261.34
263.81
261.85
262.95
263.82
264.95
264.55
261.98
261.48
261.64
261.34
261.23
19
261.39
263.88
261.85
262.59
263.98
264.61
264.27
261.98
261.44
261.53
261.14
261.21
20
261.51
263.87
261.84
262.37
264.41
264.53
263.77
261.95
261.39
261.45
261.11
261.18
21
261.46
263.40
261.84
262.25
264.52
264.57
263.48
261.91
261.38
261.36
261.13
261.15
22
261.42
262.78
261.86
262.25
264.46
264.84
263.21
261.87
261.35
261.36
261.13
261.14
23
261.39
262.40
261.73
262.21
264.52
264.80
263.00
261.83
261.35
261.33
261.07
261.02
24
261.44
262.38
261.68
262.09
264.15
264.89
262.83
261.81
261.35
261.33
261.03
260.99
25
261.70
262.43
261.65
262.18
263.90
264.83
262.71
261.79
261.35
261.32
261.04
260.99
26
261.88
262.32
261.78
262.44
264.95
264.74
262.61
261.80
261.35
261.24
261.17
260.97
27
261.83
262.26
262.71
262.39
265.81
264.96
262.60
261.86
261.35
261.12
261.20
260.98
28
261.69
262.21
263.11
262.20
266.05
265.91
262.56
261.81
261.34
261.12
261.17
260.94
29
261.59
262.19
262.92
262.03
266.44
266.94
262.51
261.86
261.31
261.13
261.14
260.98
30
261.48
262.19
262.50
261.83
265.63
266.86
262.51
261.83
261.31
261.13
261.14
31
262.36
261.81
264.68
262.58
261.30
261.14
261.14
----------
--------------
Mean
261.32
262.69
262.24
262.16
264.47
265.15
264.39
262.11
261.52
261.32
261.19
261.05
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Max
261.88
264.12
263.83
263.03
266.44
266.94
268.17
262.56
261.80
261.68
261.41
261.25
268.17
Min
260.93
261.60
261.65
261.63
262.94
263.71
262.51
261.79
261.30
261.12
261.03
260.90
260.90
268.30
m. (MSL.) ,
261.75
m. (MSL.) ,
River Bed 259.79
m. (MSL)
267.72
m. (MSL.) ,
268.02
m. (MSL.) ,
Drainage Area 14814 Square Kilometers
at 18.00 Hours , on Oct 4 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation