Basic HTML Version
374
Location : on right bank about 1.8 kilometers downstream from Phrom Phiram Dam.
19,363 sq.km.
WATER YEAR : 2011
NAN RIVER BASIN
Nan River at Ban Nong Kham , Phitsanulok (N.27A)
Lat 17 - 01 - 46 N Long 100 - 11 - 00 E
Drainge Area
Amphoe
Phrom Phiram
Changwat
Phitsanulok
Ban
Nong Kham
Water - stage recorder
+38.430 m. (MSL.)
B.M.-H.D.
About 10 meters from the top staff gage.
Elevation
Recording
Arithmetic means of 24 readings
1980 to date
Rating Operation
Period of Available Gage Records
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+48.572 m. (MSL.)
Type of Gage
Bench Mark
Location BM
1980 to date
-
1980 to date
Stable.
No overbank flow.
Records very good. Flow regulated by Naresuan Dam about 2 kilometers above gage site.
Stage-discharge relation defined by 19 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
39.97
39.64
40.11
38.83
44.47
47.94
48.68
41.94
39.86
41.74
43.53
42.46
2
39.86
40.05
39.81
38.99
47.07
47.93
48.50
41.93
40.12
41.62
43.57
42.61
3
39.93
40.18
39.72
39.37
47.82
47.88
48.36
41.77
40.08
41.56
43.71
42.54
4
40.51
40.11
39.77
39.58
47.65
47.96
48.44
41.84
40.10
42.20
43.68
42.49
5
40.06
39.97
39.31
39.45
47.80
47.93
48.65
41.57
39.87
42.63
43.27
42.83
6
39.50
39.94
39.46
39.13
47.55
48.03
48.78
41.57
40.02
42.70
43.42
42.61
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Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7
39.35
39.85
39.88
38.89
46.58
48.22
48.64
41.44
40.00
43.11
43.00
42.70
8
39.13
39.75
39.79
38.78
46.70
48.24
48.37
41.18
40.46
43.65
43.21
42.93
9
38.84
39.67
39.74
38.34
47.01
48.14
47.84
41.87
40.49
42.86
43.27
42.50
10
39.44
39.66
39.44
38.32
46.86
48.27
47.59
41.76
40.42
41.90
43.29
42.39
11
39.77
39.57
39.25
38.89
46.66
48.58
47.24
40.33
40.18
41.60
43.28
43.11
12
39.75
39.56
38.75
38.71
47.32
48.57
46.42
40.30
40.17
41.93
43.27
43.09
13
40.15
39.82
38.39
38.76
48.22
48.29
45.32
40.39
40.60
43.19
43.32
43.01
14
40.51
39.45
38.32
39.31
48.12
48.33
44.91
40.50
41.55
41.66
43.04
43.16
15
40.58
39.44
38.30
39.91
47.87
48.77
44.80
40.62
41.66
41.72
43.00
42.78
16
40.43
39.01
38.29
40.41
47.49
48.80
44.62
40.35
41.97
41.75
43.46
42.83
17
40.43
38.74
38.57
41.16
47.34
48.64
44.49
40.20
41.40
41.12
43.68
41.96
18
40.55
38.90
38.85
41.61
47.53
48.46
44.22
40.13
41.71
41.70
43.60
41.76
19
40.61
39.14
38.57
41.52
48.12
48.39
43.85
40.06
41.52
41.96
43.64
41.15
20
40.32
39.25
38.63
41.93
48.36
48.25
43.05
39.65
41.63
41.91
43.66
41.11
21
40.66
39.25
38.80
42.12
48.34
48.22
42.94
39.28
41.63
42.01
43.46
40.92
22
40.31
39.10
38.87
42.27
48.36
48.47
42.76
39.41
41.70
42.05
43.55
40.21
23
39.72
38.68
39.00
42.30
48.24
48.56
42.40
39.64
42.27
42.08
43.49
39.92
24
39.61
38.52
38.73
42.03
47.99
48.68
42.06
39.54
42.22
42.15
43.44
40.02
25
39.76
38.69
38.45
41.72
47.96
48.64
41.83
39.50
41.86
42.25
43.44
40.08
26
39.59
38.83
38.42
41.91
48.01
48.62
41.96
39.34
41.76
42.36
43.28
39.94
27
39.62
38.84
38.90
41.77
47.96
48.59
42.03
39.33
41.78
42.70
43.45
40.04
28
39.54
38.73
39.85
41.75
47.87
48.52
42.03
39.33
41.94
42.93
42.57
40.14
29
39.30
38.82
40.18
42.00
48.03
48.65
42.03
39.31
41.82
43.12
42.50
39.87
30
39.40
38.97
39.43
42.21
48.09
48.75
41.87
39.41
41.79
43.43
40.04
31
39.79
42.78
48.01
41.84
41.75
43.10
40.08
----------
--------------
Mean
39.91
39.35
39.12
40.48
47.59
48.38
45.05
40.45
41.11
42.28
43.35
41.65
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Max
40.66
40.18
40.18
42.78
48.36
48.80
48.78
41.94
42.27
43.65
43.71
43.16
48.80
Min
38.84
38.52
38.29
38.32
44.47
47.88
41.83
39.28
39.86
41.12
42.50
39.87
38.29
48.89
m. (MSL.) ,
38.43
m. (MSL.) ,
River Bed 36.84
m. (MSL)
49.09
m. (MSL.) ,
49.04
m. (MSL.) ,
Drainage Area 19363 Square Kilometers
at 21.00 Hours , on Sep 15 , 2011
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation