Page 324 - Yearbook2013_v56_new

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288
i
l f b k
WATER YEAR : 2013
WANG RIVER BASIN
Nam Mae Tam at Ban Sop Tam , Lampang (W.18A)
Lat 18 - 02 - 38 N Long 99 - 14 - 14 E
Locat on : on e t an at Ban Sop Tam.
371
sq.km.
Water - stage recorder
+204.920 m. (MSL.)
B.M.-H.D.
About 21 meters from the top staff gage.
Elevation
Recording
Drainge Area
Location BM
Gage Reading Frequency
Zero Gage at Bottom
+213.703 m. (MSL.)
Bench Mark
Type of Gage
Amphoe
Ko Kha
Changwat
Lampang
Ban
Sop Tam
Arithmetic mean of 24 readings
2011 to date
2011 to date
-
2011 to date
Fairly stable because of backwater effect.
No overbank flow.
Rating Operation
Period of Rating
Rated by Flot
Period of Available Gage Records
Basis of Mean Daily Gage Height
Rated by Current Meter
Stability of Channel Regimes
Overbank Flow Conditions
Records fair.Stage-discharge relation defined by 32 discharge measurements made in 2013.
Date
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Annual
----------
-----------------
1
204.76
204.81
204.81
204.81
204.91
205.48
206.43
205.75
205.15
204.97
204.84
204.70
2
204.75
204.81
204.81
204.81
205.19
205.53
206.73
205.59
205.06
204.96
204.84
204.70
3
204.74
204.81
204.81
204.81
205.34
205.13
206.31
205.35
205.05
204.95
204.83
204.69
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Gage Height in Meter (MSL.) Water Year April 1, 2013 to March 31, 2014
General Description
4
204.75
204.81
204.81
204.81
205.19
205.10
206.63
205.18
205.04
204.95
204.83
204.69
5
204.75
204.81
204.81
204.81
205.12
205.09
205.88
205.19
205.04
204.95
204.83
204.68
6
204.76
204.81
204.81
204.81
205.12
205.07
205.76
205.16
205.03
204.94
204.84
204.68
7
204.74
204.81
204.81
204.81
205.11
205.08
206.14
205.16
205.03
204.94
204.76
204.68
8
204.74
204.81
204.81
204.81
205.22
205.08
205.43
205.13
205.02
204.93
204.76
204.67
9
204.72
204.81
204.81
204.81
205.65
205.32
205.21
205.12
205.02
204.91
204.77
204.67
10
204.71
204.81
204.81
204.81
205.61
206.09
205.15
205.12
205.02
204.91
204.77
204.66
11
204.69
204.81
204.81
204.81
206.15
206.28
205.13
205.11
205.02
204.91
204.77
204.66
12
204 70
204 81
204 81
204 81
206 70
205 75
205 10
205 12
205 02
204 89
204 78
204 66
.
.
.
.
.
.
.
.
.
.
.
.
13
204.71
204.81
204.81
204.81
206.11
205.58
205.09
205.10
205.02
204.87
204.77
204.65
14
204.71
204.81
204.81
204.81
205.50
205.56
205.08
205.10
205.01
204.87
204.76
204.65
15
204.72
204.81
204.81
204.81
205.20
205.57
205.07
205.10
205.01
204.87
204.76
204.65
16
204.73
204.81
204.81
204.81
205.17
205.50
205.07
205.10
205.01
204.86
204.76
204.64
17
204.73
204.81
204.81
204.81
205.14
205.57
205.10
205.09
205.00
204.84
204.76
204.64
18
204.74
204.81
204.81
204.81
205.12
205.42
206.23
205.08
204.98
204.83
204.77
204.65
19
204.74
204.81
204.81
204.81
205.08
205.47
209.22
205.08
204.97
204.82
204.76
204.69
20
204.75
204.81
204.81
204.81
205.04
205.58
208.12
205.10
204.97
204.81
204.77
204.68
21
204.76
204.81
204.81
204.81
205.06
205.26
207.45
205.10
204.96
204.81
204.76
204.71
22
204.77
204.81
204.81
204.81
205.33
205.12
208.37
205.11
204.96
204.82
204.75
204.82
23
204.77
204.81
204.81
204.81
205.76
205.11
207.88
205.10
204.97
204.82
204.74
204.78
24
204.78
204.81
204.81
204.81
205.39
205.10
207.19
205.08
204.97
204.83
204.74
204.77
25
204.79
204.81
204.81
204.81
205.30
205.09
207.03
205.07
204.96
204.83
204.74
204.75
26
204.80
204.81
204.81
204.81
205.16
205.61
206.68
205.07
204.96
204.84
204.71
204.72
27
204.81
204.81
204.81
204.81
205.15
206.87
206.14
205.06
204.97
204.84
204.71
204.70
28
204.81
204.81
204.81
204.81
205.15
207.58
205.74
205.06
204.97
204.84
204.70
204.70
29
204.81
204.81
204.81
204.81
205.13
206.74
205.49
205.06
204.96
204.82
204.69
30
204.81
204.81
204.81
204.81
205.10
206.21
205.45
205.09
204.96
204.84
204.69
31
204.81
204.81
205.21
205.65
204.97
204.84
204.68
----------
--------------
Mean
204.75
204.81
204.81
204.81
205.34
205.60
206.19
205.15
205.00
204.87
204.77
204.69
Max
204.81
204.81
204.81
204.81
206.70
207.58
209.22
205.75
205.15
204.97
204.84
204.82
209.22
Min
204.69
204.81
204.81
204.81
204.91
205.07
205.07
205.06
204.96
204.81
204.70
204.64
204.64
209.50
m. (MSL.) ,
204.92
m. (MSL.) ,
River Bed 204.78
m. (MSL.)
213.03
m. (MSL.) ,
213.08
m. (MSL.) ,
Drainage Area 371 Square Kilometers
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at 10.00 Hours , on Oct 19 , 2013
Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation