Site ID: 391 Lat. 56.1298 Russia Nizhegorodskaya
River: Volga Long. 45.9908
Site name: Vasilsursk Contributing area: 548681 km2 Ratio to Comparison Station: 19.43
Latest measurement: 17-Jul-10 Mean annual runoff: 91 mm (2003-2009)
Hydrologic status: 4 Major flood Total runoff this year (2010): 51.9 mm
Latest M/C ratio: 1.99 Seven day total: 3.9 mm
Estimated current discharge: 4311 m3/sec Percent of mean 7-day total: 166.6 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 4275 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 4271 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
36 2002 no data no data no data no data no data no data no data 10.9 10.0 8.7 6.6 0.1
83 2003 1.2 0.6 1.2 3.7 12.6 11.6 13.1 12.0 9.6 9.8 5.3 2.4
87 2004 0.7 0.8 2.3 5.2 12.0 13.4 14.6 12.7 12.0 8.3 4.7 0.1
82 2005 0.8 0.1 0.1 4.1 15.0 11.6 2.4 11.5 12.3 11.4 6.9 5.6
86 2006 0.9 0.4 1.5 4.7 12.6 15.2 12.7 14.9 12.3 10.7 0.0 0.0
98 2007 2.8 0.2 2.6 10.6 13.5 12.2 11.4 15.2 10.3 11.9 5.7 1.3
108 2008 0.8 1.6 3.0 9.6 12.5 12.0 13.7 12.8 10.2 12.7 11.7 6.9
97 2009 1.6 0.4 1.9 3.4 13.6 13.6 14.6 12.7 12.7 11.4 7.7 3.5
52 2010 0.1 1.2 3.6 9.0 13.8 13.8 10.5 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 91 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 3206
23-Jul-02 3206
24-Jul-02 3423
25-Jul-02 3728
26-Jul-02 3877
27-Jul-02 3815
28-Jul-02 4062
29-Jul-02 4280
30-Jul-02 4348
31-Jul-02 5073
1-Aug-02 4347
2-Aug-02
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 3041
10-Aug-02 3004
11-Aug-02 2512
12-Aug-02 2720
13-Aug-02 3004
14-Aug-02 2980
15-Aug-02 2982
16-Aug-02 2856
17-Aug-02 2016
18-Aug-02 2261
19-Aug-02 2833
20-Aug-02 2812
21-Aug-02 3300
22-Aug-02 2829
23-Aug-02 2457
24-Aug-02 2335
25-Aug-02 2288
26-Aug-02 2974
27-Aug-02 3356
28-Aug-02 3377
29-Aug-02 3141
30-Aug-02 3025
31-Aug-02 3036
1-Sep-02 3101
2-Sep-02 3877
3-Sep-02 4078
4-Sep-02 3212
5-Sep-02 3404
6-Sep-02 2915
7-Sep-02 2703
8-Sep-02 3291
9-Sep-02 2670
10-Sep-02 2558
11-Sep-02 1762
12-Sep-02 1851
13-Sep-02 2043
14-Sep-02 2185
15-Sep-02 2911
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 3829
22-Sep-02 2829
23-Sep-02 2100
24-Sep-02 1376
25-Sep-02 1018
26-Sep-02 1305
27-Sep-02 1726
28-Sep-02 2567
29-Sep-02 2387
30-Sep-02 1646
1-Oct-02 1220
2-Oct-02 1607
3-Oct-02 1788
4-Oct-02 2202
5-Oct-02 2477
6-Oct-02 2173
7-Oct-02 2257
8-Oct-02 2249
9-Oct-02 2076
10-Oct-02 2046
11-Oct-02 2219
12-Oct-02 2339
13-Oct-02 1783
14-Oct-02 1858
15-Oct-02 1592
16-Oct-02 1097
17-Oct-02 1542
18-Oct-02 1137
19-Oct-02 1281
20-Oct-02 1616
21-Oct-02 1180
22-Oct-02 1512
23-Oct-02 1345
24-Oct-02 1325
25-Oct-02 1421
26-Oct-02 1827
27-Oct-02 2039
28-Oct-02 2297
29-Oct-02 2092
30-Oct-02 1943
31-Oct-02 1896
1-Nov-02 1844
2-Nov-02 2295
3-Nov-02 2181
4-Nov-02 1861
5-Nov-02 1874
6-Nov-02 1602
7-Nov-02 1479
8-Nov-02 1740
9-Nov-02 1574
10-Nov-02 1695
11-Nov-02 1853
12-Nov-02 1667
13-Nov-02 1833
14-Nov-02 1653
15-Nov-02 1369
16-Nov-02 1352
17-Nov-02 1372
18-Nov-02 1287
19-Nov-02 1196
20-Nov-02 1119
21-Nov-02 1012
22-Nov-02 1086
23-Nov-02 1155
24-Nov-02 1075
25-Nov-02 965
26-Nov-02 836
27-Nov-02 854
28-Nov-02 847
29-Nov-02 807
30-Nov-02 538
1-Dec-02 283
2-Dec-02 40
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
11-Dec-02 3
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 50
4-Jan-03 141
5-Jan-03 163
6-Jan-03 229
7-Jan-03 142
8-Jan-03 3
9-Jan-03 3
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 44
17-Jan-03 135
18-Jan-03 240
19-Jan-03 315
20-Jan-03 410
21-Jan-03 490
22-Jan-03 391
23-Jan-03 651
24-Jan-03 648
25-Jan-03 522
26-Jan-03 464
27-Jan-03 374
28-Jan-03 348
29-Jan-03 460
30-Jan-03 658
31-Jan-03 673
1-Feb-03 767
2-Feb-03 500
3-Feb-03 190
4-Feb-03 28
5-Feb-03 3
6-Feb-03 3
7-Feb-03 3
8-Feb-03 53
9-Feb-03 237
10-Feb-03 216
11-Feb-03 94
12-Feb-03 3
13-Feb-03 3
14-Feb-03 63
15-Feb-03 114
16-Feb-03 167
17-Feb-03 174
18-Feb-03 38
19-Feb-03 34
20-Feb-03 3
21-Feb-03 3
22-Feb-03 3
23-Feb-03 3
24-Feb-03 98
25-Feb-03 318
26-Feb-03 400
27-Feb-03 292
28-Feb-03 235
1-Mar-03 206
2-Mar-03 205
3-Mar-03 289
4-Mar-03 291
5-Mar-03 243
6-Mar-03 134
7-Mar-03 72
8-Mar-03 114
9-Mar-03 172
10-Mar-03 202
11-Mar-03 232
12-Mar-03 320