Site ID: 1347 Lat. 48.1463 USA 0
River: Stillaguamish Long. -122.0438
Site name: 0 Contributing area: 499 km2 Ratio to Comparison Station: 0.02
Latest measurement: 31-Jul-10 Mean annual runoff: 1183 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 747.0 mm
Latest M/C ratio: 1.13 Seven day total: 191.6 mm
Estimated current discharge: 100 m3/sec Percent of mean 7-day total: 334.8 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 652 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 447 m3/sec (from Gumbel Extreme Value analysis)
Comparison Station Information:  Boluo (2186950)           Contributing Area:   sq mi 28239 sq km
(Data from this gaging station are used for the calibration to discharge, with an adjustment for different contributing areas)
Notes: Final calibration to discharge has not yet been accomplished.
Discharge and runoff, based on satellite remote sensing (NASA AMSR-E data)
(For U.S, sites, nearby ground station discharge may also be shown)
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
97 2002 no data no data no data no data no data no data no data 29.4 14.9 17.8 17.2 17.8
411 2003 17.8 16.1 17.8 17.2 17.8 37.6 17.8 40.4 178.6 17.8 13.8 17.8
210 2004 17.8 16.7 17.8 17.2 17.8 16.7 17.8 17.8 17.2 17.8 17.2 17.8
970 2005 17.8 16.1 18.2 38.3 65.6 23.7 1.7 543.4 25.2 95.6 31.8 92.7
2290 2006 32.5 16.1 17.8 66.0 110.8 135.5 330.1 434.1 642.1 505.5 0.0 0.0
1380 2007 18.9 17.9 17.8 17.2 52.7 107.3 400.3 305.7 328.3 37.3 58.7 17.8
2007 2008 17.8 16.7 17.8 17.2 28.2 63.4 462.9 239.9 443.0 455.3 214.2 30.2
1016 2009 20.8 16.1 17.8 17.2 22.2 195.7 233.2 254.0 162.0 40.1 17.2 19.2
747 2010 144.6 43.0 37.5 17.2 45.1 20.3 424.7 14.6 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 1183 Standard Deviation: 6.4
Trend in Annual Runoff (slope):  -73
Discharge is estimated via a rating equation directly from the remote sensing data (M/C ratio) shown below.
Green line records upwelling microwave emission from within 5 km radius of a calbration land target. 
Explanation:   Blue line is emission from within 5 km radius of the measurement target centered over the river.
Brown line is their ratio (M/C; "HR" in Brakenridge et al 2007; 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 using available ground-based discharge information.
GoogleEarth View of Measurement Site
Return
Estimated
Disharge
Data
Date m3/sec
22-Jul-02 3
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