Site ID: 2322 Lat. -18.7534 Australia Northern Territory
River: kkk Sturt Creek Long. 128.4264
Site name: Gordon Downs Contributing area: 19047 km2 Ratio to Comparison Station: 0.93
Latest measurement: 8-Jan-10 Mean annual runoff: 98 mm (2003-2007)
Hydrologic status: 2 Normal flow Total runoff this year: 104 mm
Latest M/C ratio: 1.00 Seven day total: 1 mm
Estimated current discharge: 23 m3/sec Percent of mean 7-day total: 44.6 % (today's value compared to mean for same period, 2003-2007)
Ice-cover determination: 5 yr recurrence flood: 1266 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow, 2 = Normal flow, 3 = Flood, 4 = Major Flood 1238 m3/sec (from Gumbel Extreme Value analysis)
Comparison Station Information:  Dimond Gorge (5608023)         Contributing Area:   sq mi 20525 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 compared to gaging 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
21 2002 no data no data no data no data no data no data no data 2.6 2.6 3.7 5.2 6.6
63 2003 5.7 11.7 6.6 6.2 5.0 3.1 3.3 3.2 3.4 3.2 5.2 6.0
126 2004 7.3 41.4 43.2 5.5 3.7 3.3 4.0 3.4 3.4 3.4 4.0 3.2
58 2005 3.7 3.4 5.3 4.0 3.5 4.9 4.6 4.4 5.4 8.1 6.1 4.4
164 2006 11.4 84.5 27.1 12.8 3.8 3.4 5.5 5.0 4.2 6.1 0.0 0.0
82 2007 6.2 3.9 18.9 6.9 4.2 4.6 4.9 5.5 5.7 7.2 6.2 8.2
104 2008 8.9 44.8 14.0 4.4 3.7 3.3 4.4 4.7 4.6 3.2 3.2 5.1
74 2009 21.2 18.4 4.6 3.2 3.2 3.1 3.2 3.2 3.1 3.2 3.1 4.8
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
2322.jpg
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