Site ID: 412 Lat. 54.3823 Russia Ryazanskaya
River: Oka Long. 40.8686
Site name: Shilovo Contributing area: 113396 km2 Ratio to Comparison Station: 4.02
Latest measurement: 2-Sep-11 Mean annual runoff: 50 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 54.4 mm
Latest M/C ratio: 1.12 Seven day total: 0.1 mm
Estimated current discharge: 49 m3/sec Percent of mean 7-day total: 48.1 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 3197 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 2833 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
3 2002 no data no data no data no data no data no data no data 1.4 0.3 0.2 0.6 0.1
60 2003 0.1 0.1 0.1 22.7 27.4 3.6 2.6 1.6 1.0 0.9 0.1 0.1
44 2004 0.1 0.1 0.6 22.7 7.4 3.7 4.6 2.9 1.5 0.2 0.1 0.1
90 2005 0.1 0.1 0.1 26.5 44.3 6.4 0.7 4.7 3.9 2.2 0.8 0.5
74 2006 1.7 0.1 0.1 27.2 27.9 5.1 4.4 3.8 3.2 0.9 0.0 0.0
39 2007 0.1 0.1 7.9 17.4 5.4 3.0 1.8 2.2 0.9 0.3 0.1 0.1
16 2008 0.1 0.1 1.8 4.5 2.1 2.2 2.3 1.5 0.2 0.6 0.1 0.1
30 2009 0.1 0.1 4.2 11.0 5.1 1.5 3.8 1.8 1.9 0.2 0.1 0.1
54 2010 0.1 0.1 0.1 33.1 8.2 4.3 5.0 2.1 1.0 0.2 0.1 0.2
Mean Annual Runoff (mm): 50 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 69
23-Jul-02 69
24-Jul-02 57
25-Jul-02 95
26-Jul-02 30
27-Jul-02 78
28-Jul-02 32
29-Jul-02 62
30-Jul-02 73
31-Jul-02 52
1-Aug-02 181
2-Aug-02
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 88
10-Aug-02 88
11-Aug-02 106
12-Aug-02 112
13-Aug-02 148
14-Aug-02 118
15-Aug-02 141
16-Aug-02 196
17-Aug-02 189
18-Aug-02 137
19-Aug-02 66
20-Aug-02 3
21-Aug-02 64
22-Aug-02 51
23-Aug-02 47
24-Aug-02 23
25-Aug-02 3
26-Aug-02 3
27-Aug-02 3
28-Aug-02 3
29-Aug-02 3
30-Aug-02 3
31-Aug-02 3
1-Sep-02 18
2-Sep-02 3
3-Sep-02 23
4-Sep-02 19
5-Sep-02 70
6-Sep-02 60
7-Sep-02 3
8-Sep-02 3
9-Sep-02 3
10-Sep-02 3
11-Sep-02 3
12-Sep-02 3
13-Sep-02 3
14-Sep-02 3
15-Sep-02 3
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 95
22-Sep-02 3
23-Sep-02 3
24-Sep-02 3
25-Sep-02 3
26-Sep-02 3
27-Sep-02 3
28-Sep-02 3
29-Sep-02 3
30-Sep-02 3
1-Oct-02 3
2-Oct-02 3
3-Oct-02 3
4-Oct-02 57
5-Oct-02 3
6-Oct-02 3
7-Oct-02 3
8-Oct-02 3
9-Oct-02 3
10-Oct-02 3
11-Oct-02 3
12-Oct-02 3
13-Oct-02 3
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19-Oct-02 3
20-Oct-02 3
21-Oct-02 3
22-Oct-02 3
23-Oct-02 3
24-Oct-02 3
25-Oct-02 3
26-Oct-02 3
27-Oct-02 62
28-Oct-02 45
29-Oct-02 21
30-Oct-02 3
31-Oct-02 3
1-Nov-02 3
2-Nov-02 3
3-Nov-02 3
4-Nov-02 3
5-Nov-02 3
6-Nov-02 3
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20-Nov-02 3
21-Nov-02 3
22-Nov-02 3
23-Nov-02 3
24-Nov-02 142
25-Nov-02 105
26-Nov-02 236
27-Nov-02 261
28-Nov-02 22
29-Nov-02 3
30-Nov-02 3
1-Dec-02 3
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1-Jan-03 3
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12-Apr-03 307
13-Apr-03 659
14-Apr-03 864
15-Apr-03 1199
16-Apr-03 1360
17-Apr-03 1422
18-Apr-03 1460
19-Apr-03 1393
20-Apr-03 1477
21-Apr-03 1677
22-Apr-03 1770
23-Apr-03 1966
24-Apr-03 2013
25-Apr-03 2081
26-Apr-03 2202
27-Apr-03 2202