Basic HTML Version
356
Location : on right bank in front of Phichit Phitthaya Khom School
27,897 sq.km.
WATER YEAR : 2011
NAN RIVER BASIN
Nan River at Ban Rat Chang Khwan , Phichit (N.7A)
Lat 16 - 28 - 03 N Long 100 - 20 - 05 E
Drainge Area
Amphoe
Mueang
Changwat
Phichit
Ban
Rat Chang Khwan
Water - stage recorder
+26.000 m. (MSL.)
B.M.-H.D.
In front of Phichit Phitthaya Khom School.
Elevation
Recording
Arithmetic means of 24 readings
2000 to date
Rating Operation
Period of Available Gage Records
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+42.146 m. (MSL.)
Type of Gage
Bench Mark
Location BM
2000 to date
-
2000 to date
Fairly Stable.
No overbank flow.
Records good. Flow effected by Naresuan Dam.
Stage-discharge relation defined by 30 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
28.55
28.31
31.34
30.44
34.21
37.39
37.53
33.45
28.25
31.00
32.02
31.29
2
28.79
28.72
31.68
30.35
34.87
37.39
37.52
33.45
28.49
30.94
32.15
31.26
3
28.74
29.05
31.56
30.71
35.65
37.40
37.54
33.37
28.73
30.80
32.25
31.21
4
28.63
29.19
31.21
31.06
36.09
37.40
37.50
33.32
28.74
30.78
32.37
31.12
5
29.02
29.02
30.89
31.28
36.22
37.41
37.50
33.23
28.58
31.05
32.37
31.08
6
28.89
28.95
30.71
31.30
36.32
37.42
37.51
32.99
28.50
31.40
32.19
31.16
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Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
28.44
29.61
30.84
31.02
36.28
37.43
37.51
32.83
28.32
31.61
32.10
31.07
8
28.14
29.94
31.20
30.75
36.10
37.41
37.51
32.60
28.29
31.85
31.92
31.05
9
27.96
29.73
31.37
30.45
36.10
37.41
37.51
32.35
28.93
32.19
31.90
31.06
10
27.97
29.45
31.36
30.26
36.18
37.44
37.46
32.48
28.85
31.87
31.97
30.90
11
28.38
29.23
31.16
30.20
36.18
37.45
37.41
32.38
28.72
31.13
32.01
30.91
12
28.76
29.02
30.90
30.33
36.26
37.47
37.33
31.99
29.13
30.77
32.01
31.20
13
28.78
28.85
30.60
30.42
36.47
37.49
37.16
31.80
29.10
30.85
32.01
31.33
14
28.70
28.73
30.33
30.53
36.69
37.50
36.97
31.69
29.38
30.83
32.04
31.27
15
29.43
29.05
30.15
30.85
36.73
37.51
36.86
31.65
30.14
30.74
31.88
31.31
16
29.55
29.50
30.02
31.49
36.78
37.52
36.78
31.44
30.46
30.80
31.82
31.10
17
29.28
29.87
29.94
32.06
36.78
37.52
36.70
31.13
30.90
30.77
32.09
31.06
18
29.22
29.75
30.11
32.66
36.85
37.52
36.58
30.89
30.72
30.41
32.30
30.50
19
29.18
29.58
30.51
33.23
37.00
37.54
36.42
30.74
30.64
30.59
32.28
30.12
20
29.01
29.78
30.77
33.55
37.12
37.52
36.22
30.53
30.25
30.92
32.30
29.55
21
29.07
30.05
30.88
33.78
37.19
37.53
35.98
30.21
30.32
30.89
32.31
29.09
22
28.85
30.05
30.84
33.93
37.25
37.54
35.81
29.66
30.60
30.91
32.24
29.05
23
28.69
29.80
30.74
34.00
37.31
37.53
35.63
29.35
30.62
31.03
32.23
28.50
24
28.19
29.43
30.65
34.02
37.33
37.54
35.36
29.34
30.85
31.05
32.24
28.31
25
28.18
29.05
30.47
33.96
37.29
37.53
35.02
28.92
30.93
31.06
32.20
28.27
26
28.49
28.98
30.04
33.80
37.32
37.53
34.74
28.77
30.71
31.12
32.14
28.27
27
28.58
29.11
29.74
33.83
37.38
37.53
34.60
28.65
30.52
31.07
32.07
28.26
28
28.61
29.31
29.86
33.83
37.38
37.53
34.23
28.56
30.65
31.37
32.01
28.19
29
28.35
29.53
30.35
33.84
37.39
37.54
33.91
28.45
30.96
31.65
31.52
28.24
30
28.15
29.69
30.67
33.92
37.41
37.53
33.71
28.34
30.99
31.81
28.09
31
30.29
33.98
37.40
33.55
31.06
32.05
28.08
----------
--------------
Mean
28.69
29.37
30.70
32.12
36.63
37.48
36.32
31.15
29.78
31.14
32.10
30.06
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Max
29.55
30.29
31.68
34.02
37.41
37.54
37.54
33.45
31.06
32.19
32.37
31.33
37.54
Min
27.96
28.31
29.74
30.20
34.21
37.39
33.55
28.34
28.25
30.41
31.52
28.08
27.96
37.57
m. (MSL.) ,
26.00
m. (MSL.) ,
River Bed 20.24
m. (MSL)
41.88
m. (MSL.) ,
41.27
m. (MSL.) ,
Drainage Area 27897 Square Kilometers
at 09.00 Hours , on Oct 3 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation