Basic HTML Version
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WATER YEAR : 2013
NAN RIVER BASIN
Lam Nam Khan at Ban Na Pho Na Chan , Phitsanulok (N.59)
Lat 17 - 01 - 49 N Long 100 - 50 - 35 E
Locat on : on e t an at Ban Na P o Na C an.
415
sq.km.
Staff gage
+197.680 m. (MSL.)
B.M.-H.D.
On left bank about 25 meters from the top staff gage.
Elevation
5-time daily readings at 06.00, 09.00, 12.00, 15.00 and 18.00 hours.
+206.935 m. (MSL.)
Bench Mark
Type of Gage
Amphoe
Nakhon Thai
Changwat
Phitsanulok
Ban
Na Pho Na Chan
Drainge Area
Location BM
Gage Reading Frequency
Zero Gage at Bottom
Arithmetic mean of 5 readings
1984 to date
1996 to date
-
1996 to date
Stable.
No overbank flow.
Rated by Current Meter
Stability of Channel Regimes
Overbank Flow Conditions
Rating Operation
Period of Rating
Rated by Flot
Period of Available Gage Records
Basis of Mean Daily Gage Height
Records good. Stage-discharge relation defined by 26 discharge measurements made in 2013.
Date
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Annual
----------
-----------------
1
200.36
200.48
201.16
201.27
201.59
205.38
204.15
202.33
201.04
200.91
200.72
200.61
2
200.35
200.47
201.36
201.22
201.28
204.23
203.83
202.14
201.03
200.91
200.71
200.61
3
200.36
200.46
201.45
201.08
202.16
203.32
205.72
201.98
201.00
200.90
200.70
200.60
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Gage Height in Meter (MSL.) Water Year April 1, 2013 to March 31, 2014
General Description
4
200.36
200.45
200.99
201.98
202.88
203.10
203.75
201.82
200.99
200.88
200.69
200.60
5
200.34
201.06
202.03
202.12
201.63
202.92
203.34
201.63
200.97
200.87
200.63
200.57
6
200.37
201.50
204.00
201.22
201.42
202.88
203.36
201.57
200.96
200.86
200.68
200.56
7
200.39
201.37
202.99
201.74
202.53
202.59
202.73
201.49
200.97
200.85
200.67
200.55
8
200.44
201.35
201.35
203.52
203.37
203.29
202.51
201.48
200.97
200.84
200.63
200.54
9
200.43
200.72
201.09
202.61
202.04
202.24
202.13
201.46
200.96
200.83
200.61
200.53
10
200.42
200.56
200.84
201.92
203.83
202.14
201.96
201.43
200.95
200.83
200.71
200.63
11
200.41
200.48
201.65
201.74
203.58
201.93
201.83
201.41
200.93
200.82
200.63
200.61
12
200 42
200 36
201 03
201 62
204 53
203 52
201 71
201 62
200 95
200 81
200 60
200 60
.
.
.
.
.
.
.
.
.
.
.
.
13
200.41
200.48
200.74
201.99
203.81
203.29
203.62
201.65
200.98
200.80
200.60
200.58
14
200.40
200.47
201.66
201.59
204.37
204.44
202.52
201.55
200.98
200.78
200.62
200.56
15
200.41
200.42
201.72
201.48
203.18
206.22
201.93
201.37
200.97
200.77
200.61
200.55
16
200.41
200.43
201.08
202.48
203.72
204.98
201.85
201.34
201.78
200.76
200.61
200.54
17
200.38
200.44
204.81
201.60
204.65
204.12
202.00
201.31
201.28
200.75
200.61
200.61
18
200.39
200.38
201.94
201.56
203.83
203.46
201.90
201.27
201.11
200.74
200.60
200.85
19
200.39
200.37
203.17
201.41
202.92
203.13
201.83
201.24
201.04
200.73
200.58
200.68
20
200.40
201.26
202.89
201.24
202.38
202.93
201.75
201.22
200.97
200.72
200.57
200.63
21
200.42
201.51
203.70
201.26
202.30
202.43
201.83
201.20
200.96
200.72
200.58
200.60
22
200.53
201.12
201.48
201.18
204.62
204.20
201.82
201.17
200.95
200.73
200.57
200.58
23
200.51
200.69
201.72
201.19
205.83
204.13
201.80
201.16
200.95
200.73
200.57
200.56
24
200.50
200.63
201.66
201.92
204.60
204.62
202.89
201.13
200.95
200.73
200.60
200.57
25
201.00
200.60
202.08
203.70
203.38
203.42
203.28
201.13
200.94
200.73
200.60
200.56
26
200.63
200.56
202.25
202.92
203.85
203.13
203.04
201.13
200.93
200.73
200.60
200.55
27
200.53
200.52
201.71
202.01
203.61
205.74
201.93
201.13
200.93
200.72
200.59
200.53
28
200.50
200.50
201.62
201.78
202.54
206.02
201.84
201.15
200.92
200.70
200.61
200.52
29
200.47
200.50
201.58
203.46
203.41
205.29
201.76
201.12
200.92
200.71
200.51
30
200.46
200.51
201.56
203.17
202.86
205.60
201.71
201.10
200.91
200.71
200.51
31
200.48
201.98
202.51
201.65
200.91
200.70
200.50
----------
--------------
Mean
200.45
200.68
201.91
201.93
203.20
203.82
202.52
201.42
201.00
200.78
200.63
200.58
Max
201.00
201.51
204.81
203.70
205.83
206.22
205.72
202.33
201.78
200.91
200.72
200.85
206.22
Min
200.34
200.36
200.74
201.08
201.28
201.93
201.65
201.10
200.91
200.70
200.57
200.50
200.34
206.26
m. (MSL.) ,
197.68
m. (MSL.) ,
River Bed 200.04
m. (MSL.)
207.54
m. (MSL.) ,
207.56
m. (MSL.) ,
Drainage Area 415 Square Kilometers
at 09.00 Hours , on Sep 15 , 2013
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation
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