Site ID: 2571 Lat. 40.2887 USA 0
River: Sacramento Long. -122.1871
Site name: 0 Contributing area: 31000 km2 Ratio to Comparison Station: 0.55
Latest measurement: 10-Jan-10 Mean annual runoff: 217 mm (2003-2008)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 18 mm 2010
Latest M/C ratio: 1.09 Seven day total: 10 mm
Estimated current discharge: 544 m3/sec Percent of mean 7-day total: 224.8 % (today's value compared to mean for same period, 2003-2007)
Ice-cover determination: 5 yr recurrence flood: 1035 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow, 2 = Normal flow, 3 = Flood, 4 = Major Flood 988 m3/sec (from Gumbel Extreme Value analysis)
Comparison Station Information:  Sacramento, Calif. (4146280)         Contributing Area:   sq mi 55907 sq km
(Data from this gaging station are used for the calibration to discharge, with an adjustment for different contributing areas)
Notes:
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
0 2002 no data no data no data no data no data no data no data 0.0 0.0 0.0 0.0 0.0
0 2003 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
0 2004 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
247 2005 0.0 0.0 2.1 24.1 34.7 3.5 0.0 49.1 41.9 39.7 17.9 34.4
166 2006 26.4 0.0 0.0 0.0 0.0 0.0 0.0 49.8 45.2 44.4 0.0 0.0
448 2007 36.0 24.7 37.6 30.4 40.8 43.7 48.9 45.9 36.3 32.2 36.5 35.5
443 2008 34.4 36.6 29.7 27.3 41.1 37.8 48.8 44.7 46.4 37.1 31.3 27.8
470 2009 32.4 31.8 33.1 34.4 42.0 41.4 51.0 51.0 45.6 33.3 35.7 38.4
18 2010 17.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): n.a. Standard Deviation: n.a.
Trend in Annual Runoff (slope):  n.a. (incomplete record)
Discharge is estimated via a rating equation directly 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.
GoogleEarth View of Measurement Site
2571.jpg
Return
Estimated
Disharge
Data
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