Basic HTML Version
184
Location : on left bank about 100 meters downstream from Nawarat Bridge.
6,350
sq.km.
WATER YEAR : 2012
PING RIVER BASIN
Ping River at Nawarat Bridge , Chiang Mai (P.1)
Lat 18 - 47 - 10 N Long 99 - 00 - 27 E
Drainge Area
Amphoe
Mueang
Changwat
Chiang Mai
Ban
Nawarat Bridge
Water - stage recorder.
+300.500 m. (MSL.)
B.M.-H.D.
On left bank near automatic gage building
Elevation
Recording
Arithmetic mean of 24 readings
1921 to date
Rating Operation
Period of Available Gage Records
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+305.310 m. (MSL.)
Type of Gage
Bench Mark
Location BM
1954 - 1960 , 1967 to date
1936 - 1938
1954 - 1960 , 1967 to date
Fairly stable because of backwater effect.
No overbank flow.
Records fair. Flow regulated by Mae Ngat Dam and Mae Taeng Weir above gage site.
Phaya Kham weir situated about 2 Kilometers dowmstream from the gage site.
Stage-discharge relation defined by 40 discharge measurements made in 2012.
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
301.79
301.82
302.00
301.73
301.83
302.03
302.30
302.03
301.85
301.61
301.82
301.60
2
301.80
301.82
302.00
301.76
301.77
302.28
302.20
301.91
301.86
301.69
301.75
301.57
3
301.84
301.80
301.97
301.78
301.76
302.21
302.15
301.87
301.90
301.69
301.73
301.60
4
301.83
301.80
301.97
301.79
301.76
302.50
302.13
301.86
301.91
301.66
301.73
301.67
5
301.82
301.81
301.95
301.81
301.76
302.74
302.11
301.91
301.86
301.62
301.73
301.77
6
301.86
301.92
301.90
301.83
301.75
302.50
302.10
301.94
301.82
301.60
301.72
301.83
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Gage Height in Meter (MSL.) Water Year April 1, 2012 to March 31, 2013
7
301.91
302.24
301.87
301.86
301.76
302.44
302.13
301.91
301.81
301.56
301.70
301.87
8
301.94
302.13
301.96
301.87
301.75
302.82
302.09
301.90
301.76
301.57
301.67
301.79
9
301.89
302.11
302.03
301.87
301.80
303.09
302.02
301.84
301.76
301.59
301.66
301.70
10
301.87
302.10
301.97
301.95
301.85
302.88
301.98
301.82
301.75
301.60
301.69
301.65
11
301.87
302.01
301.96
301.98
301.86
302.73
301.96
301.82
301.75
301.66
301.69
301.63
12
301.88
301.91
301.92
301.87
301.94
302.92
301.95
301.81
301.74
301.74
301.70
301.65
13
301.89
301.88
301.90
301.86
301.93
302.73
301.95
301.89
301.73
301.74
301.73
301.78
14
301.91
301.85
301.90
301.89
301.85
302.72
301.97
302.18
301.73
301.74
301.72
301.81
15
301.90
301.85
301.88
301.90
301.78
302.98
301.95
302.02
301.71
301.74
301.61
301.81
16
301.90
301.88
301.84
301.89
301.81
302.73
301.95
301.90
301.70
301.70
301.57
301.76
17
301.87
301.88
301.84
301.86
301.91
302.57
301.95
301.87
301.69
301.64
301.55
301.75
18
301.82
301.86
301.84
301.85
301.88
302.31
301.95
301.79
301.69
301.60
301.59
301.75
19
301.78
301.85
301.84
301.89
301.84
302.19
301.95
301.79
301.69
301.58
301.73
301.70
20
301.77
301.84
301.85
301.90
301.85
302.16
301.95
301.80
301.69
301.57
301.76
301.64
21
301.78
301.85
301.83
301.92
301.90
302.24
301.94
301.92
301.69
301.58
301.73
301.60
22
301.76
301.86
301.82
301.89
301.90
302.31
301.92
301.92
301.68
301.59
301.71
301.62
23
301.75
301.85
301.81
301.84
301.95
302.18
301.90
301.90
301.68
301.62
301.65
301.79
24
301.76
301.83
301.82
301.90
302.11
302.14
301.89
301.86
301.64
301.63
301.66
301.82
25
301.76
301.82
301.85
302.11
302.20
302.16
301.86
301.88
301.66
301.64
301.72
301.79
26
301.76
301.85
301.84
302.04
302.32
302.10
301.86
301.86
301.68
301.63
301.70
301.75
27
301.74
301.88
301.78
301.92
302.23
302.10
301.88
301.89
301.67
301.60
301.64
301.74
28
301.76
301.86
301.74
301.89
302.21
302.14
301.87
301.93
301.68
301.59
301.62
301.68
29
301.79
301.88
301.73
301.88
302.20
302.15
301.86
301.87
301.66
301.60
301.60
30
301.80
301.89
301.74
301.84
302.15
302.16
301.84
301.86
301.66
301.73
301.58
31
301.94
301.84
302.09
301.85
301.66
301.83
301.58
----------
--------------
Mean
301.83
301.90
301.88
301.88
301.93
302.44
301.98
301.89
301.73
301.64
301.69
301.71
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Max
301.94
302.24
302.03
302.11
302.32
303.09
302.30
302.18
301.91
301.83
301.82
301.87
303.09
Min
301.74
301.80
301.73
301.73
301.75
302.03
301.84
301.79
301.64
301.56
301.55
301.57
301.55
303.12
m. (MSL.) ,
300.50
m. (MSL.) ,
River Bed 299.15
m. (MSL.)
307.73
m. (MSL.) ,
307.63
m. (MSL.) ,
Drainage Area 6350 Square Kilometers
at 11.00 Hours , on Sep 9 , 2012
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation