Page 276 - yearbook2011

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242
Location : on left bank at the bridge on road.
129
sq.km.
WATER YEAR : 2011
PING RIVER BASIN
Nam Mae Lai at Ban Pong Din , Chiang Mai (P.80)
Lat 18 - 54 - 49 N Long 99 - 14 - 17 E
Amphoe
Doi Saket
Changwat
Chiang Mai
Ban
Pong Din
Drainge Area
Water - stage recorder
+455.096 m. (MSL.)
B.M.-H.D.
On left bank at the approach of the bridge.
Elevation
Recording.
Arithmetic means of 24 readings
2001 to date
Zero Gage at Bottom
Type of Gage
Bench Mark
Location BM
Basis of Mean Daily Gage Height
Gage Reading Frequency
+462.021 m. (MSL.)
Rating Operation
Period of Available Gage Records
2001 to date
-
2001 to date
Fairly stable.
No 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
455.65
456.07
455.80
455.91
457.93
456.17
456.49
456.00
455.86
455.83
455.78
455.75
2
455.65
456.04
455.80
455.96
456.67
456.19
456.69
455.98
455.86
455.83
455.78
455.75
3
455.65
455.99
455.81
455.94
456.42
456.14
456.49
455.97
455.86
455.83
455.78
455.75
4
455.65
455.90
455.78
455.89
456.26
456.20
456.60
455.95
455.86
455.83
455.78
455.75
5
455.66
455.79
455.91
455.85
456.21
456.31
456.41
455.95
455.86
455.83
455.78
455.75
6
455.77
455.74
456.11
455.85
456.18
457.02
456.32
455.95
455.85
455.83
455.78
455.74
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
455.75
455.77
455.89
455.83
456.20
456.95
456.35
455.94
455.86
455.83
455.78
455.75
8
455.75
455.78
455.83
455.85
456.26
456.48
456.35
455.93
455.86
455.83
455.78
455.75
9
455.75
455.93
455.80
455.91
456.30
456.56
456.32
455.92
455.86
455.83
455.78
455.75
10
455.74
456.33
455.81
455.91
456.61
456.83
456.30
455.92
455.86
455.81
455.78
455.75
11
455.74
456.00
455.83
456.08
457.31
456.52
456.24
455.92
455.86
455.80
455.77
455.72
12
455.75
455.88
455.83
455.88
456.91
456.49
456.24
455.90
455.86
455.80
455.77
455.75
13
455.75
455.77
455.80
455.92
457.14
456.49
456.22
455.90
455.86
455.80
455.77
455.75
14
455.75
455.77
455.80
456.13
456.43
456.43
456.22
455.89
455.85
455.80
455.77
455.76
15
455.74
455.78
455.80
455.99
456.39
456.35
456.23
455.90
455.85
455.80
455.77
455.77
16
455.74
455.78
455.80
455.90
456.33
456.34
456.26
455.90
455.85
455.80
455.77
455.77
17
455.73
455.79
455.79
455.85
456.25
456.32
456.27
455.88
455.85
455.80
455.77
455.76
18
455.66
455.81
455.81
455.85
456.44
456.32
456.22
455.88
455.85
455.80
455.77
455.76
19
455.66
455.89
455.75
455.85
456.74
456.35
456.20
455.88
455.85
455.79
455.77
455.75
20
455.66
455.84
455.76
455.85
456.44
456.33
456.18
455.88
455.85
455.79
455.77
455.75
21
455.66
455.79
455.87
455.85
456.46
456.35
456.16
455.88
455.85
455.78
455.76
455.75
22
455.66
455.73
455.78
455.84
456.64
456.53
456.15
455.88
455.83
455.78
455.76
455.75
23
455.68
455.75
455.75
455.86
456.18
456.55
456.12
455.88
455.85
455.79
455.76
455.75
24
455.81
455.75
455.77
455.99
456.19
457.13
456.10
455.88
455.85
455.78
455.76
455.74
25
456.39
455.74
456.01
455.91
456.59
456.54
456.09
455.88
455.85
455.78
455.76
455.74
26
455.80
455.73
456.87
455.87
457.65
456.42
456.08
455.88
455.85
455.79
455.75
455.74
27
455.74
455.77
456.25
455.85
456.49
456.60
456.10
455.88
455.84
455.79
455.75
455.74
28
455.72
455.83
456.15
455.85
456.26
457.10
456.08
455.88
455.84
455.79
455.75
455.74
29
455.75
455.85
455.99
455.85
456.23
456.76
456.01
455.87
455.84
455.79
455.75
455.75
30
456.19
456.16
455.94
455.85
456.39
456.37
456.06
455.86
455.84
455.79
455.75
31
455.84
456.33
456.21
456.08
455.84
455.78
455.75
----------
--------------
Mean
455.75
455.86
455.90
455.91
456.54
456.50
456.25
455.91
455.85
455.80
455.77
455.75
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Max
456.39
456.33
456.87
456.33
457.93
457.13
456.69
456.00
455.86
455.83
455.78
455.77
457.93
Min
455.65
455.73
455.75
455.83
456.18
456.14
456.01
455.86
455.83
455.78
455.75
455.72
455.65
459.72
m. (MSL.) ,
455.10
m. (MSL.) ,
River Bed 455.27
m. (MSL)
461.89
m. (MSL.) ,
461.91
m. (MSL.) ,
Drainage Area 129 Square Kilometers
at 09.00 Hours , on Aug 1 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation