Site ID: 2339 Lat. -12.2738 Australia Northern Territory
River: Mann Long. 134.2603
Site name: Maningrida Contributing area: 857 km2 Ratio to Comparison Station: 0.04
Latest measurement: 8-Jan-10 Mean annual runoff: 3561 mm (2003-2007)
Hydrologic status: 3 Flood Total runoff this year: 8161 mm
Latest M/C ratio: 1.44 Seven day total: 1 mm
Estimated current discharge: 689 m3/sec Percent of mean 7-day total: 211.4 % (today's value compared to mean for same period, 2003-2007)
Ice-cover determination: 5 yr recurrence flood: 2403 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow, 2 = Normal flow, 3 = Flood, 4 = Major Flood 2310 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
58 2002 no data no data no data no data no data no data no data 8.0 8.0 10.4 10.1 21.1
2152 2003 329.9 395.8 1188.4 158.9 10.4 9.4 10.4 10.4 10.1 10.4 7.4 10.4
311 2004 10.4 9.7 193.0 10.1 10.4 10.1 10.4 10.4 10.1 10.4 10.1 16.3
942 2005 10.4 9.4 447.8 322.8 10.4 10.1 10.4 10.4 10.1 10.4 9.7 80.7
5631 2006 1053.2 1080.3 794.7 1027.2 1621.8 12.2 10.4 10.4 10.1 10.4 0.0 0.0
8770 2007 140.3 189.5 5003.3 2268.3 538.1 22.1 10.4 10.4 10.1 17.5 292.8 266.8
8161 2008 2777.5 1515.2 2386.8 639.9 68.5 9.4 10.4 10.4 39.5 196.0 44.3 463.4
5028 2009 1160.2 900.9 1956.3 269.4 69.9 26.9 10.4 10.4 10.1 15.3 167.4 430.7
Discharge is estimated directly via a rating equation from the remote sensing data (M/C ratio) shown below.
Explanation:   Green line records upwelling microwave emission from a land parcel (ca 10 km x 10 km) near the river; blue line from a parcel centered over the river.
Brown line is their ratio (M/C; scale on right) and is used to estimate river discharge via a rating equation.
Rating equations are being developed and applied on an individual basis. For calibration status, see "notes" entry, above.
When data above show calibration site values lower than for the measurement site, discharge estimation may not be possible.
GoogleEarth View of Measurement Site
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