Site ID: 396 Lat. 56.6939 Russia Mariy-El
River: Malaja Long. 47.9755
Site name: Yoshkar Ola Contributing area: 1560 km2 Ratio to Comparison Station: 0.06
Latest measurement: 17-Jul-10 Mean annual runoff: 183 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 48.4 mm
Latest M/C ratio: 1.10 Seven day total: 1.3 mm
Estimated current discharge: 3 m3/sec Percent of mean 7-day total: 49.9 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 840 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 922 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
26 2002 no data no data no data no data no data no data no data 4.4 4.6 5.7 5.5 5.7
93 2003 5.7 4.8 5.5 32.5 5.7 5.5 5.7 5.7 5.5 5.7 4.6 5.7
193 2004 5.7 4.6 5.7 125.9 5.7 5.5 5.7 5.7 5.5 5.7 5.5 12.0
387 2005 5.3 4.0 5.7 307.9 14.8 5.5 2.6 5.7 5.5 15.2 9.2 5.7
137 2006 4.0 3.9 6.3 76.9 5.7 5.5 5.7 5.7 5.5 18.1 0.0 0.0
133 2007 5.7 5.2 5.7 45.5 5.7 6.4 27.7 5.7 5.5 5.7 6.1 8.4
268 2008 5.7 5.3 81.6 89.3 5.7 27.7 24.4 5.7 5.5 5.7 5.5 5.7
72 2009 5.7 5.2 5.7 6.6 5.7 5.5 5.7 5.7 5.5 5.7 5.5 9.4
48 2010 5.9 5.2 5.9 16.7 5.5 5.5 3.7 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 183 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
23-Jul-02 3
24-Jul-02 3
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