390
i
l f b k h b id f kh h i
h k
d b
WATER YEAR : 2013
NAN RIVER BASIN
Nam Phak at Ban Tha Sakae , Phitsanulok (N.55)
Lat 17 - 15 - 06 N Long 100 - 37 - 53 E
Locat on : on e t an at t e r ge o Na on T a - C at Tra an Roa , Tam on Pa Daeng.
971
sq.km.
Staff gage
+182.830 m. (MSL.)
B.M.-H.D.
On left bank about 13 meters from the top staff gage.
Elevation
5-time daily readings at 06.00, 09.00, 12.00, 15.00 and 18.00 hours.
+191.446 m. (MSL.)
Bench Mark
Type of Gage
Amphoe
Chat Trakan
Changwat
Phitsanulok
Ban
Tha Sakae
Drainge Area
Location BM
Gage Reading Frequency
Zero Gage at Bottom
Arithmetic mean of 5 readings
1983 to date
1994 to date
-
1994 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 29 discharge measurements made in 2013.
Date
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Annual
----------
-----------------
1
183.28
183.28
183.29
183.42
186.29
185.72
187.02
184.04
183.59
183.47
183.36
183.30
2
183.28
183.28
183.40
183.41
185.02
185.69
186.48
184.07
183.58
183.43
183.36
183.29
3
183.28
183.27
183.28
183.38
185.16
185.15
186.48
184.11
183.58
183.43
183.36
183.29
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Gage Height in Meter (MSL.) Water Year April 1, 2013 to March 31, 2014
General Description
4
183.27
183.27
183.51
183.37
184.63
184.91
186.15
184.01
183.57
183.41
183.36
183.29
5
183.27
183.37
183.53
184.00
184.46
184.72
185.86
183.98
183.57
183.40
183.38
183.29
6
183.27
183.34
184.22
184.14
184.20
184.59
185.87
183.90
183.56
183.40
183.37
183.29
7
183.27
183.39
183.88
184.43
184.12
184.70
185.45
183.89
183.55
183.41
183.37
183.29
8
183.27
183.48
183.67
185.43
185.16
185.02
185.22
183.88
183.55
183.41
183.36
183.28
9
183.26
183.43
183.59
184.91
186.11
184.93
185.07
183.85
183.51
183.40
183.35
183.28
10
183.26
183.36
183.48
186.00
186.33
184.96
184.97
183.83
183.50
183.40
183.34
183.28
11
183.26
183.31
183.41
185.41
187.28
184.74
184.78
183.81
183.49
183.39
183.33
183.28
12
183 28
183 28
183 41
184 75
187 40
184 74
184 67
183 81
183 48
183 38
183 32
183 29
.
.
.
.
.
.
.
.
.
.
.
.
13
183.28
183.30
183.42
184.32
186.31
185.27
184.93
183.78
183.50
183.37
183.32
183.28
14
183.38
183.30
183.49
183.95
185.66
186.03
184.74
183.78
183.48
183.38
183.31
183.26
15
183.37
183.28
183.51
183.84
185.57
187.60
184.53
183.81
183.47
183.42
183.31
183.28
16
183.40
183.30
183.35
183.71
185.35
187.89
184.45
183.78
183.58
183.39
183.31
183.27
17
183.39
183.30
183.33
184.08
185.04
187.92
184.45
183.77
183.74
183.39
183.33
183.28
18
183.38
183.28
183.36
183.84
184.76
187.51
184.51
183.78
183.58
183.41
183.33
183.26
19
183.37
183.28
183.33
183.70
184.54
186.80
185.22
183.77
183.76
183.43
183.33
183.27
20
183.36
183.29
183.32
183.61
184.39
186.53
184.59
183.74
183.68
183.41
183.32
183.28
21
183.35
183.38
183.41
183.48
184.36
185.93
184.10
183.72
183.51
183.41
183.32
183.27
22
183.34
183.49
183.51
183.68
184.66
185.59
184.37
183.70
183.51
183.41
183.32
183.27
23
183.33
183.41
183.49
183.59
187.15
185.38
184.29
183.68
183.53
183.41
183.32
183.26
24
183.32
183.50
183.55
184.40
187.70
185.50
184.33
183.67
183.54
183.41
183.30
183.28
25
183.34
183.46
183.66
185.09
187.87
185.74
184.48
183.64
183.55
183.41
183.30
183.31
26
183.34
183.40
183.89
184.99
187.17
186.05
184.48
183.65
183.52
183.41
183.30
183.32
27
183.31
183.42
183.82
184.26
186.22
187.39
184.22
183.65
183.53
183.41
183.30
183.33
28
183.30
183.37
183.82
184.07
185.57
188.40
184.14
183.66
183.51
183.41
183.30
183.32
29
183.29
183.32
183.57
185.55
185.27
188.27
184.07
183.62
183.48
183.38
183.32
30
183.29
183.30
183.47
187.22
185.29
187.70
184.08
183.62
183.47
183.38
183.32
31
183.28
187.32
185.16
184.10
183.50
183.37
183.31
----------
--------------
Mean
183.31
183.35
183.53
184.43
185.62
186.05
184.91
183.80
183.55
183.40
183.33
183.29
Max
183.40
183.50
184.22
187.32
187.87
188.40
187.02
184.11
183.76
183.47
183.38
183.33
188.40
Min
183.26
183.27
183.28
183.37
184.12
184.59
184.07
183.62
183.47
183.37
183.30
183.26
183.26
188.53
m. (MSL.) ,
182.83
m. (MSL.) ,
River Bed 182.87
m. (MSL.)
192.26
m. (MSL.) ,
191.18
m. (MSL.) ,
Drainage Area 971 Square Kilometers
at 18.00 Hours , on Sep 28 , 2013
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation
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