Page 64 - Slide 1

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Location : on left bank at the bridge on highway.
172 sq.km.
WATER YEAR : 2012
KHONG RIVER BASIN
Huai Chanot at Ban Don Sawan , Nakhon Phanom (Kh.91)
Lat 16 - 47 - 48 N Long 104 - 39 - 45 E
Amphoe That Phanom Changwat Nakhon Phanom Ban Don Sawan
Drainge Area
Staff gage
+149.000 m. (MSL.)
B.M.- Highways Dept.
On left bank at the footpath of the bridge. Elevation
3-time daily readings at 06.00 , 12.00 and 18.00 hours.
Arithmetic mean of 3 readings
1996 to date
+159.228 m. (MSL.)
Bench Mark
Type of Gage
Rating Operation
Period of Available Gage Records
Location BM
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
1996 to date
-
1996 to date
Stable.
No overbank flow.
Records good. Stage-discharge relation defined by 27 discharge measurements made in 2012.
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
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1 150.00 150.18 150.96 150.65 151.40 152.17 150.60 150.26 150.06 149.98 150.00 149.97
2 150.00 150.11 151.35 151.37 151.12 152.72 150.44 150.22 150.05 149.98 150.00 149.97
3 150.00 150.02 151.58 151.65 151.11 152.93 150.35 150.20 150.05 149.99 150.00 149.97
4 150.00 150.00 151.46 151.46 150.99 152.41 150.38 150.19 150.03 150.14 149.98 149.97
5 150.04 150.00 151.17 151.93 150.85 151.85 150.82 150.17 150.00 150.07 149.98 149.97
6 150.08 150.01 150.93 152.25 150.74 151.64 151.02 150.17 150.02 150.00 149.98 149.97
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Gage Height in Meter (MSL.) Water Year April 1, 2012 to March 31, 2013
7 150.21 150.22 150.80 151.70 150.65 153.09 150.88 150.18 150.17 150.00 149.98 149.96
8 150.45 150.34 151.53 151.40 150.66 154.13 150.79 150.24 150.13 150.00 150.00 149.93
9 150.27 150.43 152.40 151.45 151.01 152.36 150.65 150.23 150.03 149.98 150.00 149.89
10 150.23 150.35 152.14 151.44 151.45 151.56 150.54 150.21 150.00 149.98 149.98 149.89
11 151.03 150.25 151.64 151.06 151.35 151.50 150.52 150.18 150.00 149.98 149.97 149.94
12 150.76 150.19 151.39 150.86 151.01 151.51 150.58 150.17 150.00 149.97 149.95 149.90
13 150.47 150.15 151.11 150.74 150.90 151.47 150.59 150.15 150.00 150.00 149.95 149.90
14 150.34 150.11 150.82 150.65 150.74 151.84 150.62 150.14 150.00 150.07 149.97 149.90
15 150.22 150.12 150.68 150.58 150.59 151.74 150.61 150.14 150.00 150.11 149.97 149.95
16 150.16 150.11 150.55 150.58 150.90 151.26 150.58 150.17 150.05 150.05 150.00 149.97
17 150.10 150.35 151.53 150.62 151.29 151.03 150.52 150.17 150.05 150.00 150.14 149.98
18 150.10 150.84 153.07 150.59 151.13 150.76 150.38 150.17 150.02 149.98 150.10 149.94
19 150.08 151.04 153.09 150.53 150.94 150.72 150.35 150.17 150.00 149.97 150.04 149.94
20 150.04 150.90 152.18 150.49 150.85 150.71 150.32 150.17 150.00 149.97 149.99 149.91
21 150.06 150.57 151.44 150.50 150.76 150.70 150.25 150.12 150.00 149.97 149.97 149.90
22 150.59 150.35 150.99 150.50 150.75 150.65 150.23 150.08 149.98 149.97 149.97 149.91
23 150.47 150.27 150.91 150.48 150.71 150.65 150.23 150.05 149.98 149.97 149.97 150.04
24 150.27 150.47 151.17 150.50 150.70 150.65 150.23 150.05 149.98 149.97 149.97 150.00
25 150.18 150.64 151.11 150.48 151.02 150.65 150.20 150.08 149.98 149.97 149.95 150.00
26 150.08 150.54 150.91 150.49 151.13 150.66 150.21 150.11 150.05 149.98 149.95 149.97
27 150.15 151.02 150.75 150.55 151.02 150.71 150.28 150.16 150.05 149.98 149.95 149.94
28 150.62 151.76 150.64 150.53 150.95 150.68 150.37 150.16 150.05 149.99 149.95 149.90
29 150.39 151.47 150.60 150.57 151.21 150.66 150.32 150.10 150.05 150.00 149.90
30 150.26 151.09 150.52 150.86 151.72 150.63 150.29 150.06 150.03 150.00 149.90
31 151.03 151.26 151.66 150.29 150.00 150.00 149.90
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Mean 150.25 150.48 151.31 150.93 151.01 151.47 150.47 150.16 150.03 150.00 149.99 149.94
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Max 151.03 151.76 153.09 152.25 151.72 154.13 151.02 150.26 150.17 150.14 150.14 150.04 154.13
Min 150.00 150.00 150.52 150.48 150.59 150.63 150.20 150.05 149.98 149.97 149.95 149.89 149.89
154.30 m. (MSL.) ,
149.00 m. (MSL.) , River Bed 149.50 m. (MSL)
158.79 m. (MSL.) ,
155.95 m. (MSL.) , Drainage Area 172 Square Kilometers
at 12.00 Hours , on Sep 8 , 2012 Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation