Site ID: 231 Lat. 12.9356 Cambodia Kampong Thum
River: Sen Long. 105.1770
Site name: Phumi Roneam Contributing area: 12440 km2 Ratio to Comparison Station: 0.54
Latest measurement: 10-Nov-09 Mean annual runoff: 485 mm (2003-2007)
Hydrologic status: 2 Normal flow Total runoff this year: 680 mm
Latest M/C ratio: 1.32 Seven day total: 1 mm
Estimated current discharge: 852 m3/sec Percent of mean 7-day total: 485.0 % (today's value compared to mean for same period, 2003-2007)
Ice-cover determination: 5 yr recurrence flood: 1964 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow, 2 = Normal flow, 3 = Flood, 4 = Major Flood 1885 m3/sec (from Gumbel Extreme Value analysis)
Comparison Station Information:  Tokwe Confluence D/s C/s (1495240)       Contributing Area: 7280 sq mi 23237 sq km
(Data from this gaging station are used for the calibration to discharge, with an adjustment for different contributing areas)
Notes: Comparison station is placeholder, only; this site is not yet calibrated to actual discharge
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
311 2002 no data no data no data no data no data no data no data 46.6 180.8 82.0 0.7 0.7
157 2003 0.7 0.6 10.8 1.3 17.3 12.8 37.8 30.2 39.3 4.5 0.6 0.7
102 2004 0.7 0.7 0.7 0.7 1.8 48.2 10.0 33.0 3.3 1.6 0.7 0.7
390 2005 0.7 0.6 0.7 0.7 19.4 15.9 123.3 27.3 128.8 62.0 8.4 2.4
692 2006 0.6 0.6 0.7 35.8 38.7 36.0 134.1 128.5 145.6 171.8 0.0 0.0
1086 2007 1.3 2.7 12.2 6.8 126.8 18.7 83.9 302.0 301.2 173.5 49.9 6.7
680 2008 0.7 0.7 0.7 17.2 121.1 59.3 33.9 108.3 171.4 112.6 49.5 4.9
1041 2009 6.4 6.6 15.8 5.9 83.4 68.3 70.7 155.6 237.9 308.9 81.2 0.0
Discharge is estimated directly via a rating equation from the remote sensing data (M/C ratio) shown below.