Site ID: 576 Lat. 51.3318 Russia 0
River: Sejm Long. 34.7384
Site name: 0 Contributing area: 19763 km2 Ratio to Comparison Station: 0.70
Latest measurement: 17-Jul-10 Mean annual runoff: 94 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 114.5 mm
Latest M/C ratio: 1.10 Seven day total: 0.1 mm
Estimated current discharge: 3 m3/sec Percent of mean 7-day total: 125.0 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 1020 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 1010 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 0.3 0.5 0.5 1.3 0.5
145 2003 5.3 0.3 0.4 57.2 74.8 0.4 0.5 3.2 0.5 1.5 0.4 0.5
54 2004 0.5 1.0 19.6 28.4 1.4 0.8 0.5 0.5 0.4 0.5 0.4 0.5
113 2005 0.5 0.4 0.5 65.4 42.8 1.3 0.0 0.5 0.4 0.5 0.4 0.5
164 2006 0.5 3.6 6.4 91.7 59.6 0.4 0.6 0.5 0.4 0.5 0.0 0.0
58 2007 0.5 0.4 35.8 14.4 1.1 0.4 0.5 3.4 0.4 0.5 0.4 0.4
86 2008 0.5 0.4 61.7 17.3 2.7 0.6 0.5 0.5 0.4 0.5 0.4 0.5
39 2009 0.5 0.4 1.0 32.8 0.7 0.6 0.5 0.5 0.4 0.5 0.4 0.5
114 2010 0.5 0.3 2.6 86.0 24.3 0.4 0.3 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 94 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
25-Jul-02 3
26-Jul-02 3
27-Jul-02 3
28-Jul-02 3
29-Jul-02 3
30-Jul-02 3
31-Jul-02 3
1-Aug-02 3
2-Aug-02
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 3
10-Aug-02 3
11-Aug-02 3
12-Aug-02 3
13-Aug-02 3
14-Aug-02 3
15-Aug-02 3
16-Aug-02 3
17-Aug-02 3
18-Aug-02 3
19-Aug-02 3
20-Aug-02 3
21-Aug-02 3
22-Aug-02 3
23-Aug-02 3
24-Aug-02 3
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 3
2-Sep-02 3
3-Sep-02 3
4-Sep-02 3
5-Sep-02 3
6-Sep-02 3
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 23
15-Sep-02 23
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 3
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 3
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
14-Oct-02 3
15-Oct-02 3
16-Oct-02 3
17-Oct-02 3
18-Oct-02 3
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 3
28-Oct-02 3
29-Oct-02 3
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
7-Nov-02 3
8-Nov-02 3
9-Nov-02 3
10-Nov-02 3
11-Nov-02 3
12-Nov-02 3
13-Nov-02 3
14-Nov-02 3
15-Nov-02 3
16-Nov-02 3
17-Nov-02 3
18-Nov-02 3
19-Nov-02 71
20-Nov-02 98
21-Nov-02 32
22-Nov-02 3
23-Nov-02 3
24-Nov-02 3
25-Nov-02 3
26-Nov-02 3
27-Nov-02 3
28-Nov-02 3
29-Nov-02 3
30-Nov-02 3
1-Dec-02 3
2-Dec-02 3
3-Dec-02 3
4-Dec-02 3
5-Dec-02 3
6-Dec-02 3
7-Dec-02 3
8-Dec-02 3
9-Dec-02 3
10-Dec-02 3
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12-Dec-02 3
13-Dec-02 3
14-Dec-02 3
15-Dec-02 3
16-Dec-02 3
17-Dec-02 3
18-Dec-02 3
19-Dec-02 3
20-Dec-02 3
21-Dec-02 3
22-Dec-02 3
23-Dec-02 3
24-Dec-02 3
25-Dec-02 3
26-Dec-02 3
27-Dec-02 3
28-Dec-02 3
29-Dec-02 3
30-Dec-02 3
31-Dec-02 3
1-Jan-03 3
2-Jan-03 3
3-Jan-03 3
4-Jan-03 3
5-Jan-03 3
6-Jan-03 3
7-Jan-03 1011
8-Jan-03 114
9-Jan-03
10-Jan-03 3
11-Jan-03 3
12-Jan-03 3
13-Jan-03 3
14-Jan-03 3
15-Jan-03 3
16-Jan-03 3
17-Jan-03 3
18-Jan-03 3
19-Jan-03 3
20-Jan-03 3
21-Jan-03 3
22-Jan-03 3
23-Jan-03 3
24-Jan-03 3
25-Jan-03 3
26-Jan-03 3
27-Jan-03 3
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30-Jan-03 3
31-Jan-03 3
1-Feb-03 3
2-Feb-03 3
3-Feb-03 3
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1-Mar-03 3
2-Mar-03 3
3-Mar-03 3
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31-Mar-03 3
1-Apr-03 3
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3-Apr-03 3
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8-Apr-03 3
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10-Apr-03 3
11-Apr-03 3
12-Apr-03 3
13-Apr-03 3
14-Apr-03 3
15-Apr-03 80
16-Apr-03 186
17-Apr-03 567
18-Apr-03 582
19-Apr-03 745
20-Apr-03 885
21-Apr-03 861
22-Apr-03 1192
23-Apr-03 1192
24-Apr-03 1148
25-Apr-03 1214
26-Apr-03 1036
27-Apr-03 955
28-Apr-03 1075
29-Apr-03 671
30-Apr-03 662
1-May-03 468
2-May-03 656
3-May-03 930
4-May-03 888
5-May-03 1208
6-May-03 1039
7-May-03 880
8-May-03 928
9-May-03 928
10-May-03 918
11-May-03 896
12-May-03 683
13-May-03 650
14-May-03 457
15-May-03 392
16-May-03 499
17-May-03 466
18-May-03 474
19-May-03 334
20-May-03 407
21-May-03 387
22-May-03 478
23-May-03 671
24-May-03 405
25-May-03 405
26-May-03 249
27-May-03 213
28-May-03 120
29-May-03 74
30-May-03 3
31-May-03 3
1-Jun-03 3
2-Jun-03 3
3-Jun-03 3
4-Jun-03 3
5-Jun-03 3
6-Jun-03 3
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28-Jun-03 3