Site ID: 233 Lat. 13.0890 Cambodia Siemreab-Otdar Meanchey
River: Chikreng Long. 104.3116
Site name: Phumi Spean Tnot Contributing area: 1887 km2 Ratio to Comparison Station: 0.16
Latest measurement: 10-Nov-09 Mean annual runoff: 15829 mm (2003-2008)
Hydrologic status: 2 Normal flow Total runoff this year: 14834 mm
Latest M/C ratio: 1.61 Seven day total: 682 mm
Estimated current discharge: 2211 m3/sec Percent of mean 7-day total: 141.2 % (today's value compared to mean for same period, 2003-2007)
Ice-cover determination: 5 yr recurrence flood: 5627 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow, 2 = Normal flow, 3 = Flood, 4 = Major Flood 5465 m3/sec (from Gumbel Extreme Value analysis)
Comparison Station Information:  Ban Chot (2969082)           Contributing Area:   sq mi 11886 sq km
(Data from this gaging station are used for the calibration to discharge, with an adjustment for different contributing areas)
Notes:
Discharge and runoff, based on satellite remote sensing (NASA AMSR-E data)
(For U.S, sites, nearby ground station discharge may also be shown)
2008-Present
2002-Present
Annual  Monthly Total Runoff (mm), computed from above satellite-based discharge data
Runoff
(mm) Jan Feb Mar April May June July Aug Sept Oct Nov Dec
7791 2002 no data no data no data no data no data no data no data 1168.8 2416.7 3237.9 853.9 114.1
5559 2003 6.2 4.3 4.7 26.1 38.2 43.5 680.4 880.1 2093.0 1728.7 48.8 4.7
8678 2004 4.7 4.4 253.8 10.6 210.1 2120.4 935.9 2535.8 1682.3 894.0 19.9 5.6
17190 2005 4.7 5.4 5.2 77.8 685.9 972.1 1713.1 1367.1 4113.1 5565.7 2232.3 447.3
16609 2006 13.3 14.5 9.3 87.5 5.8 321.9 3382.3 3781.9 4828.4 4164.2 0.0 0.0
14682 2007 159.6 4.5 155.9 493.6 1398.3 464.0 3140.9 1245.2 2317.1 2987.6 1826.7 488.2
14834 2008 205.5 6.8 4.7 40.5 1216.2 394.8 270.0 1523.7 3935.4 3960.0 2175.7 1101.0
15083 2009 218.2 35.8 9.9 4.6 376.1 653.1 2216.9 1863.3 3618.1 4689.4 1397.3 0.0
0 2010 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 15829 Standard Deviation: 4374
Trend in Annual Runoff (slope):  5012.4
Discharge is estimated via a rating equation directly from the remote sensing data (M/C ratio) shown below.