Page 238 - yearbook2011

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204
Location : on right bank near the bridge of Hot - Mae Sariang Highway at guidepost 7+500.
3,909
sq.km.
Drainge Area
WATER YEAR : 2011
PING RIVER BASIN
Nam Mae Chaem at Tha Kham Bridge , Chiang Mai (P.14A)
Lat 18 - 12 - 02 N Long 98 - 37 - 01 E
Amphoe
Chom Thong
Changwat
Chiang Mai
Ban
-
Water - stage recorder
+261.863 m. (MSL.)
B.M.-H.D.
about 10 meters in front of automatic gage building.
Elevation
Recording
Arithmetic means of 24 readings
1953 to date
Rating Operation
Period of Available Gage Records
Location BM
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+267.972 m. (MSL.)
Bench Mark
Type of Gage
1955 - 1960 , 1967 to date
-
1955 - 1960 , 1967 to date
Fairly stable by some sillting.
No overbank flow.
Records good. The concrete weir situated about 6 kilometers downstream from the gage site.
Stage-discharge relation defined by 37 discharge measurements made in 2011.
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
262.91
263.41
263.34
263.83
264.04
265.14
265.05
263.90
263.39
263.87
263.68
263.53
2
262.87
263.27
263.28
263.98
265.18
265.28
265.12
263.86
263.66
263.87
263.65
263.51
3
262.86
263.26
263.69
263.94
266.12
265.56
265.96
263.87
263.80
263.87
263.73
263.51
4
262.86
263.24
263.54
264.03
265.84
265.38
266.09
264.14
263.79
263.87
263.73
263.51
5
262.86
263.23
264.43
263.97
264.83
265.44
265.95
263.92
263.79
263.86
263.71
263.50
6
262.86
263.27
264.20
263.93
263.99
265.65
265.95
263.87
263.78
263.86
263.71
263.49
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
262.86
263.23
264.27
263.82
263.71
265.68
265.85
263.83
263.78
263.84
263.71
263.49
8
262.86
263.19
263.86
263.64
263.66
265.47
265.53
263.81
263.78
263.84
263.67
263.47
9
262.86
263.37
263.66
263.51
263.66
265.74
265.20
263.81
263.78
263.84
263.61
263.47
10
262.87
263.70
263.53
263.64
263.62
265.64
265.28
263.81
263.80
263.84
263.59
263.47
11
262.94
263.59
263.46
263.87
264.02
265.47
265.25
263.82
263.86
263.84
263.57
263.47
12
263.03
263.42
263.59
263.80
263.63
265.50
265.20
263.76
263.89
263.83
263.56
263.47
13
263.11
263.25
263.66
263.54
263.50
265.69
264.94
263.65
263.81
263.80
263.57
263.47
14
263.29
263.40
263.49
263.54
263.59
265.59
264.49
263.62
263.89
263.83
263.58
263.47
15
263.45
263.60
263.50
263.91
263.94
265.52
264.52
263.61
263.90
263.84
263.59
263.59
16
263.30
263.58
263.51
263.80
264.00
265.42
264.44
263.62
263.91
263.83
263.62
263.48
17
263.02
263.95
263.56
263.61
263.71
265.23
264.74
263.64
263.90
263.83
263.58
263.47
18
262.98
264.45
263.56
263.50
264.70
265.14
264.85
263.68
263.90
263.82
263.57
263.47
19
263.00
264.27
263.50
263.59
264.61
265.00
264.51
263.60
263.89
263.81
263.56
263.47
20
262.95
263.98
263.58
263.60
265.32
264.93
264.39
263.57
263.89
263.81
263.56
263.47
21
262.90
263.50
263.46
263.71
265.00
265.01
264.36
263.60
263.89
263.81
263.56
263.46
22
262.88
263.27
263.41
263.96
264.74
264.99
264.36
263.56
263.90
263.82
263.57
263.46
23
262.86
263.25
263.41
263.92
264.72
264.84
264.35
263.56
263.88
263.80
263.59
263.45
24
262.93
263.16
263.41
263.68
264.44
264.70
264.36
263.54
263.87
263.79
263.60
263.45
25
263.26
263.37
263.47
263.78
264.43
264.70
264.30
263.56
263.87
263.77
263.59
263.45
26
263.46
263.54
263.64
263.73
265.54
264.80
264.26
263.61
263.88
263.76
263.58
263.44
27
263.30
263.31
264.18
263.65
265.63
265.33
264.25
263.61
263.87
263.74
263.57
263.44
28
263.21
263.32
264.07
263.61
265.28
265.37
264.18
263.58
263.88
263.74
263.56
263.44
29
263.16
263.57
263.90
263.61
265.14
265.21
264.11
263.44
263.87
263.73
263.55
263.44
30
263.17
263.45
263.97
263.58
265.07
265.18
264.09
263.36
263.87
263.71
263.43
31
263.29
263.53
265.28
263.98
263.87
263.70
263.43
----------
--------------
Mean
263.03
263.47
263.67
263.74
264.55
265.29
264.84
263.69
263.83
263.81
263.61
263.47
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Max
263.46
264.45
264.43
264.03
266.12
265.74
266.09
264.14
263.91
263.87
263.73
263.59
266.12
Min
262.86
263.16
263.28
263.50
263.50
264.70
263.98
263.36
263.39
263.70
263.55
263.43
262.86
267.06
m. (MSL.) ,
261.86
m. (MSL.) ,
River Bed 262.44
m. (MSL)
268.28
m. (MSL.) ,
268.39
m. (MSL.) ,
Drainage Area 3909 Square Kilometers
at 19.00 Hours , on Aug 3 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation