Site ID: 390 Lat. 55.8919 Russia Chuvashskaya
River: Volga Long. 48.2042
Site name: Volzhsk Contributing area: 618405 km2 Ratio to Comparison Station: 21.90
Latest measurement: 17-Jul-10 Mean annual runoff: 27 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 14.8 mm
Latest M/C ratio: 1.38 Seven day total: 1.2 mm
Estimated current discharge: 1139 m3/sec Percent of mean 7-day total: 111.6 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 2028 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 1997 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
6 2002 no data no data no data no data no data no data no data 2.6 2.1 0.6 0.4 0.0
23 2003 0.0 0.0 0.0 1.2 3.9 2.7 4.4 4.2 2.3 2.0 1.8 0.4
19 2004 0.0 0.0 0.1 1.8 3.7 3.8 3.6 2.3 2.1 1.0 0.9 0.0
27 2005 0.0 0.0 0.0 1.0 7.5 4.3 0.9 4.8 3.5 3.0 1.0 0.8
28 2006 0.0 0.0 0.1 1.3 5.0 5.4 5.6 4.2 3.2 3.0 0.0 0.0
28 2007 0.1 0.0 0.0 2.1 3.1 4.0 4.8 5.5 3.2 3.3 1.4 0.0
35 2008 0.0 0.0 0.7 4.5 4.7 3.8 5.6 4.2 3.1 3.2 3.3 2.2
29 2009 0.0 0.0 0.0 1.9 4.0 5.2 5.2 4.3 3.6 2.7 1.3 0.7
15 2010 0.0 0.0 0.0 1.9 4.5 4.8 3.5 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 27 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 1169
23-Jul-02 1169
24-Jul-02 1120
25-Jul-02 1227
26-Jul-02 1260
27-Jul-02 1191
28-Jul-02 1138
29-Jul-02 1310
30-Jul-02 1362
31-Jul-02 1507
1-Aug-02 2150
2-Aug-02
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 1236
10-Aug-02 795
11-Aug-02 688
12-Aug-02 702
13-Aug-02 671
14-Aug-02 743
15-Aug-02 871
16-Aug-02 1095
17-Aug-02 920
18-Aug-02 1029
19-Aug-02 849
20-Aug-02 577
21-Aug-02 683
22-Aug-02 659
23-Aug-02 728
24-Aug-02 641
25-Aug-02 430
26-Aug-02 144
27-Aug-02 95
28-Aug-02 486
29-Aug-02 674
30-Aug-02 969
31-Aug-02 958
1-Sep-02 773
2-Sep-02 667
3-Sep-02 694
4-Sep-02 856
5-Sep-02 783
6-Sep-02 797
7-Sep-02 658
8-Sep-02 699
9-Sep-02 811
10-Sep-02 864
11-Sep-02 679
12-Sep-02 504
13-Sep-02 413
14-Sep-02 244
15-Sep-02 544
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 701
22-Sep-02 425
23-Sep-02 524
24-Sep-02 436
25-Sep-02 359
26-Sep-02 519
27-Sep-02 543
28-Sep-02 688
29-Sep-02 584
30-Sep-02 423
1-Oct-02 270
2-Oct-02 256
3-Oct-02 254
4-Oct-02 248
5-Oct-02 377
6-Oct-02 391
7-Oct-02 307
8-Oct-02 410
9-Oct-02 135
10-Oct-02 107
11-Oct-02 60
12-Oct-02 3
13-Oct-02 209
14-Oct-02 204
15-Oct-02 301
16-Oct-02 231
17-Oct-02 179
18-Oct-02 166
19-Oct-02 149
20-Oct-02 18
21-Oct-02 3
22-Oct-02 3
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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-02 212
3-Nov-02 391
4-Nov-02 533
5-Nov-02 336
6-Nov-02 6
7-Nov-02 3
8-Nov-02 3
9-Nov-02 3
10-Nov-02 3
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12-Nov-02 3
13-Nov-02 115
14-Nov-02 81
15-Nov-02 3
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23-Nov-02 62
24-Nov-02 173
25-Nov-02 358
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27-Nov-02 249
28-Nov-02 105
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