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Location : on right bank at the bridge of Phet Kasem Highway near the guidepost 342, Huai Sai.
25 sq.km.
Amphoe Mueang Changwat Prachuap Khiri Khan Ban Suan Son Huai Sai
WATER YEAR : 2012
WEST COAST - GULF BASIN
Huai Sai at Ban Suan Son Huai Sai , Prachuap Khiri Khan (Gt.15)
Lat 11 - 40 - 33 N Long 99 - 41 - 44 E
Drainge Area
Staff gage
+15.860 m. (MSL.)
B.M.-H.D.
On right bank at the footpath 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
1987 to date
Basis of Mean Daily Gage Height
Gage Reading Frequency
Zero Gage at Bottom
+22.383 m. (MSL.)
Type of Gage
Bench Mark
Location BM
Rating Operation
Period of Available Gage Records
1987 to date
-
1987 to date
Stable.
No overbank flow.
Records good. Stage-discharge relation defined by 7 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 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.61 16.03 15.95 16.06 15.81
2 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.61 16.02 15.95 16.03 15.81
3 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.61 16.02 15.94 16.02 15.81
4 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.61 16.02 15.93 16.00 15.81
5 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.61 16.01 15.93 15.99 15.80
6 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.61 16.00 15.92 15.96 15.80
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Gage Height in Meter (MSL.) Water Year April 1, 2012 to March 31, 2013
7 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.61 16.00 15.91 15.95 15.79
8 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.99 15.90 15.94 15.79
9 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.98 15.89 15.93 15.78
10 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.98 15.88 15.92 15.77
11 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.97 15.87 15.91 15.76
12 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.97 15.86 15.90 15.76
13 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.97 15.86 15.89 15.75
14 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.96 15.85 15.89 15.74
15 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.96 15.85 15.88 15.74
16 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.95 15.84 15.87 15.74
17 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.95 15.83 15.87 15.73
18 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.94 15.83 15.85 15.73
19 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.94 15.82 15.84 15.72
20 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.93 15.82 15.84 15.72
21 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.93 15.81 15.84 15.71
22 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.92 15.80 15.83 15.71
23 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.92 15.80 15.83 15.70
24 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.94 15.79 15.82 15.70
25 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.83 15.94 15.79 15.82 15.69
26 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.98 15.94 15.79 15.75 15.69
27 15.61 15.61 15.61 15.61 15.61 15.61 15.61 16.17 15.93 15.78 15.81 15.68
28 15.61 15.61 15.61 15.61 15.61 15.61 15.61 16.20 15.93 15.80 15.81 15.68
29 15.61 15.61 15.61 15.61 15.61 15.61 15.61 16.13 15.92 15.98 15.67
30 15.61 15.61 15.61 15.61 15.61 15.61 15.61 16.08 15.92 16.09 15.67
31 15.61 15.61 15.61 15.61 15.94 16.21 15.66
---------- --------------
Mean 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.70 15.96 15.88 15.89 15.74
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Max 15.61 15.61 15.61 15.61 15.61 15.61 15.61 16.20 16.03 16.21 16.06 15.81 16.21
Min 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.61 15.92 15.78 15.75 15.66 15.61
16.23 m. (MSL.) ,
15.86 m. (MSL.) , River Bed 15.22 m. (MSL.)
21.16 m. (MSL.) ,
22.38 m. (MSL.) , Drainage Area 25 Square Kilometers
at 18.00 Hours , on Nov 28, 2012 Annual Max Momentary Gage Height
Zero Gage at Bottom Elevation
Right Bank Elevation
Left Bank Elevation