Page 702 - yearbook2011

668
Location : on right bank at the bridge.
116 sq.km.
Amphoe Hat Yai Changwat Songkhla Ban Khlong Wa
WATER YEAR : 2011
THALE SAP SONGKHLA
Khlong Wa at Ban Khlong Wa , Songkhla (X.174)
Lat 06 - 59 - 42 N Long 100 - 29 - 05 E
Drainge Area
Water - stage recorder
+0.000 m. (MSL.)
B.M.-H.D.
On right bank at the abutment of the bridge. Elevation
Recording
Arithmetic means of 24 readings
1989 to date
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+10.954 m. (MSL.)
Type of Gage
Bench Mark
Location BM
Rating Operation
Period of Available Gage Records
1989 to date
-
1989 to date
Stable.
No overbank flow.
Records good. Stage-discharge relation defined by 32 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
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1 5.36 5.16 5.22 5.17 5.09 5.20 5.18 5.67 5.61 8.21 5.48 5.25
2 5.45 5.14 5.24 5.16 5.09 5.20 5.17 5.58 5.57 8.34 5.48 5.24
3 5.43 5.13 5.24 5.17 5.08 5.18 5.16 5.54 5.53 6.76 5.47 5.25
4 5.39 5.26 5.23 5.22 5.08 5.18 5.16 5.47 5.62 5.98 5.45 5.30
5 5.36 5.45 5.26 5.19 5.08 5.18 5.17 5.49 5.91 5.85 5.43 5.41
6 5.30 5.38 5.22 5.16 5.08 5.17 5.17 5.69 5.65 5.75 5.42 5.67
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Gage Height in Meter (MSL.) Water Year April 1, 2011 to March 31, 2012
7 5.27 5.31 5.23 5.15 5.08 5.16 5.18 5.71 5.58 5.70 5.40 5.50
8 5.25 5.28 5.26 5.15 5.08 5.16 5.20 5.66 5.54 5.68 5.39 5.42
9 5.25 5.21 5.26 5.14 5.08 5.15 5.20 5.54 5.49 5.69 5.39 5.40
10 5.22 5.20 5.36 5.12 5.07 5.14 5.20 5.46 5.51 5.81 5.38 5.38
11 5.20 5.21 5.38 5.12 5.07 5.53 5.24 5.43 5.54 5.79 5.37 5.36
12 5.19 5.21 5.34 5.11 5.08 5.68 5.22 5.42 5.67 6.16 5.36 5.39
13 5.18 5.20 5.31 5.10 5.08 5.52 5.22 5.39 6.14 6.84 5.35 5.36
14 5.17 5.20 5.29 5.11 5.08 5.40 5.18 5.39 5.89 6.49 5.35 5.34
15 5.16 5.24 5.27 5.09 5.34 5.33 5.15 5.42 5.79 6.01 5.34 5.33
16 5.16 5.34 5.26 5.09 5.29 5.31 5.21 5.42 6.10 6.09 5.34 5.31
17 5.15 5.37 5.24 5.08 5.17 5.29 5.19 5.39 6.31 5.97 5.33 5.30
18 5.25 5.35 5.24 5.08 5.08 5.28 5.25 5.34 6.02 5.83 5.32 5.29
19 5.40 5.30 5.23 5.08 5.13 5.27 5.32 5.35 5.86 5.78 5.32 5.28
20 5.35 5.27 5.21 5.07 5.21 5.26 5.30 5.37 5.75 5.83 5.31 5.30
21 5.29 5.28 5.20 5.07 5.33 5.22 5.29 6.42 5.75 5.76 5.31 5.34
22 5.26 5.28 5.19 5.08 5.28 5.21 5.27 6.88 5.79 5.70 5.30 5.36
23 5.24 5.37 5.17 5.14 5.22 5.20 5.23 6.63 5.72 5.66 5.29 5.33
24 5.22 5.46 5.15 5.13 5.20 5.19 5.24 6.85 5.73 5.62 5.30 5.31
25 5.20 5.39 5.14 5.11 5.20 5.18 5.24 6.32 5.66 5.59 5.23 5.30
26 5.18 5.32 5.13 5.10 5.18 5.18 5.26 6.05 5.59 5.57 5.21 5.29
27 5.16 5.29 5.13 5.09 5.20 5.20 5.34 5.97 5.54 5.54 5.25 5.28
28 5.15 5.27 5.13 5.09 5.25 5.18 5.35 5.88 5.53 5.53 5.26 5.27
29 5.14 5.25 5.13 5.09 5.25 5.20 5.31 5.77 5.50 5.51 5.26 5.27
30 5.18 5.23 5.20 5.08 5.25 5.20 5.43 5.68 5.49 5.50 5.26
31 5.22 5.08 5.25 5.63 5.58 5.48 5.26
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Mean 5.25 5.28 5.23 5.12 5.16 5.25 5.25 5.74 5.71 6.00 5.35 5.33
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Max 5.45 5.46 5.38 5.22 5.34 5.68 5.63 6.88 6.31 8.34 5.48 5.67 8.34
Min 5.14 5.13 5.13 5.07 5.07 5.14 5.15 5.34 5.49 5.48 5.21 5.24 5.07
9.97 m. (MSL.) ,
0.00 m. (MSL.) , River Bed 3.44 m. (MSL)
11.40 m. (MSL.) ,
11.32 m. (MSL.) , Drainage Area 116 Square Kilometers
at 13.00 Hours , on Jan 1 , 2011 Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation