Page 616 - Slide 1

582
Location : on right bank at Ban Klang.
125 sq.km.
WATER YEAR : 2012
WEST COAST - GULF BASIN
Khlong Thap Sakae at Ban Klang , Prachuap Khiri Khan (Gt.9)
Lat 11 - 29 - 40 N Long 99 - 36 - 20 E
Amphoe Thap Sakae Changwat Prachuap Khiri Khan Ban Klang
Drainge Area
Staff gage
+6.843 m. (MSL.)
B.M.- Highways Dept.
On right bank at the abutment of the bridge. Elevation
5-time daily readings at 06.00, 09.00, 12.00, 15.00 and 18.00 hours.
Arithmetic mean of 5 readings
1979 to date
+12.220 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
1980 to date
-
1980 to date
Stable.
No overbank flow.
Records good. Stage-discharge relation defined by 13 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
---------- -----------------
1 7.34 7.31 7.29 7.24 7.28 7.27 7.23 7.57 8.27 7.40 7.74 7.36
2 7.34 7.32 7.28 7.23 7.29 7.37 7.24 7.55 8.14 7.39 7.61 7.36
3 7.33 7.35 7.28 7.24 7.27 7.33 7.24 7.51 8.04 7.38 7.57 7.35
4 7.33 7.35 7.28 7.25 7.26 7.30 7.23 7.48 7.97 7.36 7.54 7.36
5 7.33 7.34 7.28 7.25 7.25 7.31 7.23 7.44 7.88 7.36 7.51 7.36
6 7.34 7.33 7.28 7.24 7.25 7.31 7.24 7.38 7.81 7.35 7.48 7.36
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Gage Height in Meter (MSL.) Water Year April 1, 2012 to March 31, 2013
7 7.33 7.33 7.28 7.25 7.24 7.34 7.24 7.40 7.78 7.35 7.46 7.35
8 7.34 7.33 7.28 7.25 7.25 7.33 7.26 7.38 7.75 7.35 7.44 7.35
9 7.33 7.33 7.28 7.26 7.26 7.31 7.25 7.35 7.73 7.34 7.43 7.35
10 7.33 7.28 7.28 7.26 7.28 7.34 7.24 7.33 7.69 7.34 7.43 7.35
11 7.33 7.26 7.28 7.24 7.25 7.36 7.24 7.34 7.66 7.34 7.49 7.36
12 7.33 7.26 7.26 7.27 7.24 7.32 7.23 7.69 7.63 7.33 7.46 7.35
13 7.33 7.26 7.26 7.33 7.24 7.30 7.23 7.61 7.64 7.33 7.44 7.35
14 7.33 7.26 7.26 7.27 7.28 7.29 7.23 7.50 7.64 7.33 7.43 7.35
15 7.32 7.26 7.26 7.27 7.27 7.28 7.23 7.42 7.61 7.34 7.42 7.35
16 7.32 7.27 7.24 7.26 7.27 7.28 7.22 7.39 7.59 7.36 7.42 7.35
17 7.32 7.27 7.26 7.26 7.26 7.29 7.22 7.38 7.58 7.36 7.42 7.34
18 7.32 7.26 7.25 7.27 7.26 7.30 7.31 7.63 7.58 7.35 7.41 7.34
19 7.32 7.25 7.24 7.27 7.26 7.28 7.27 7.71 7.56 7.34 7.40 7.36
20 7.32 7.27 7.24 7.27 7.25 7.28 7.26 7.73 7.47 7.34 7.39 7.36
21 7.32 7.26 7.24 7.26 7.24 7.28 7.35 7.62 7.45 7.34 7.38 7.35
22 7.32 7.26 7.24 7.25 7.24 7.28 7.30 7.55 7.44 7.34 7.37 7.35
23 7.32 7.25 7.23 7.26 7.24 7.29 7.31 7.51 7.44 7.34 7.37 7.35
24 7.31 7.25 7.22 7.26 7.23 7.29 7.51 7.47 7.42 7.34 7.36 7.35
25 7.31 7.25 7.22 7.26 7.24 7.27 7.73 7.60 7.42 7.34 7.36 7.35
26 7.31 7.25 7.22 7.27 7.25 7.25 7.68 8.03 7.40 7.35 7.36 7.35
27 7.31 7.26 7.22 7.31 7.25 7.25 7.61 8.35 7.40 7.36 7.36 7.34
28 7.31 7.26 7.22 7.28 7.28 7.24 7.55 8.29 7.40 7.36 7.36 7.34
29 7.31 7.26 7.24 7.28 7.27 7.24 7.54 8.94 7.40 7.41 7.34
30 7.31 7.28 7.26 7.30 7.27 7.23 7.51 8.41 7.40 7.74 7.33
31 7.29 7.29 7.27 7.50 7.40 7.84 7.33
---------- --------------
Mean 7.32 7.28 7.26 7.26 7.26 7.29 7.34 7.65 7.63 7.38 7.44 7.35
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Max 7.34 7.35 7.29 7.33 7.29 7.37 7.73 8.94 8.27 7.84 7.74 7.36 8.94
Min 7.31 7.25 7.22 7.23 7.23 7.23 7.22 7.33 7.40 7.33 7.36 7.33 7.22
9.57 m. (MSL.) ,
6.84 m. (MSL.) , River Bed 6.85 m. (MSL.)
11.34 m. (MSL.) ,
11.35 m. (MSL.) , Drainage Area 125 Square Kilometers
at 18.00 Hours , on Nov 29, 2012 Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Left Bank Elevation
Right Bank Elevation