Site ID: 1586 Lat. -23.0607 Madagascar Fianarantsoa
River: Mananara Long. 46.8921
Site name: Midongy du Sud Contributing area: 2847 km2 Ratio to Comparison Station: 0.17
Latest measurement: 15-Nov-09 Mean annual runoff: 179 mm (2003-2007)
Hydrologic status: 2 Normal flow Total runoff this year: 198 mm
Latest M/C ratio: 1.01 Seven day total: 1 mm
Estimated current discharge: 13 m3/sec Percent of mean 7-day total: 107.1 % (today's value compared to mean for same period, 2003-2007)
Ice-cover determination: 5 yr recurrence flood: 71 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow, 2 = Normal flow, 3 = Flood, 4 = Major Flood 69 m3/sec (from Gumbel Extreme Value analysis)
Comparison Station Information:  Amboasary (1389470)         Contributing Area: 7280 sq mi 16866 sq km
(Data from this gaging station are used for the calibration to discharge, with an adjustment for different contributing areas)
Notes: Rating equation is based on monthly mean, maximum, and minimum M/C and comparison station discharge values.
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
54 2002 no data no data no data no data no data no data no data 9.2 8.5 9.9 11.1 15.2
183 2003 25.2 21.5 33.8 13.8 10.4 10.3 11.3 10.3 10.3 10.8 9.1 16.4
145 2004 13.5 19.5 20.4 11.4 10.4 9.3 9.8 9.8 9.5 10.5 10.6 10.5
199 2005 17.2 9.9 25.7 28.3 18.5 12.1 12.7 14.7 13.5 11.8 15.3 19.5
134 2006 17.9 16.5 14.1 11.0 10.7 12.7 15.4 13.4 11.1 10.9 0.0 0.0
233 2007 27.1 35.2 41.4 22.4 17.3 14.3 13.7 11.2 9.9 12.7 14.7 13.1
198 2008 24.7 23.2 26.1 17.4 15.7 13.7 13.4 14.3 11.3 10.3 13.0 14.8
209 2009 31.3 27.0 24.3 34.0 14.9 14.3 16.6 15.8 11.6 11.4 8.0 0.0
Discharge is estimated directly via a rating equation from the remote sensing data (M/C ratio) shown below.