Site ID: 358 Lat. 46.5294 Russia Astrakhanskaya
River: Volga Delta Long. 48.3255
Site name: Astrakhan Contributing area: 1412000 km2 Ratio to Comparison Station: 50.00
Latest measurement: 16-Jul-10 Mean annual runoff: 13 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 9.7 mm
Latest M/C ratio: 1.27 Seven day total: 0.2 mm
Estimated current discharge: 670 m3/sec Percent of mean 7-day total: 109.5 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 6500 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 6074 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
1 2002 no data no data no data no data no data no data no data 0.6 0.3 0.0 0.0 0.0
12 2003 0.0 0.0 0.0 0.2 4.6 5.0 1.2 0.8 0.4 0.0 0.0 0.1
13 2004 1.0 0.0 0.0 0.3 6.5 2.8 1.2 0.7 0.2 0.1 0.0 0.0
20 2005 0.0 0.0 0.0 0.3 8.3 9.1 0.4 1.1 0.6 0.4 0.0 0.0
5 2006 0.0 0.0 0.0 0.2 1.6 1.6 0.8 0.4 0.0 0.2 0.0 0.0
15 2007 0.0 0.0 0.4 1.4 6.8 3.8 1.3 1.0 0.4 0.2 0.1 0.0
14 2008 0.0 0.0 0.1 1.0 8.0 2.1 1.2 0.8 0.3 0.1 0.0 0.0
12 2009 0.0 0.0 0.2 0.3 6.9 3.3 0.7 0.4 0.2 0.0 0.0 0.0
10 2010 0.0 0.0 0.0 0.0 5.3 3.7 0.6 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 13 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-02 628
23-Jul-02 628
24-Jul-02 685
25-Jul-02 752
26-Jul-02 635
27-Jul-02 554
28-Jul-02 562
29-Jul-02 576
30-Jul-02 678
31-Jul-02 870
1-Aug-02 826
2-Aug-02
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 305
10-Aug-02 360
11-Aug-02 418
12-Aug-02 460
13-Aug-02 540
14-Aug-02 581
15-Aug-02 554
16-Aug-02 530
17-Aug-02 466
18-Aug-02 462
19-Aug-02 468
20-Aug-02 342
21-Aug-02 368
22-Aug-02 257
23-Aug-02 197
24-Aug-02 286
25-Aug-02 316
26-Aug-02 336
27-Aug-02 319
28-Aug-02 300
29-Aug-02 209
30-Aug-02 212
31-Aug-02 237
1-Sep-02 285
2-Sep-02 319
3-Sep-02 314
4-Sep-02 271
5-Sep-02 260
6-Sep-02 176
7-Sep-02 204
8-Sep-02 203
9-Sep-02 218
10-Sep-02 375
11-Sep-02 322
12-Sep-02 267
13-Sep-02 220
14-Sep-02 111
15-Sep-02 93
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 164
22-Sep-02 100
23-Sep-02 106
24-Sep-02 106
25-Sep-02 151
26-Sep-02 242
27-Sep-02 305
28-Sep-02 305
29-Sep-02 235
30-Sep-02 98
1-Oct-02 3
2-Oct-02 25
3-Oct-02 3
4-Oct-02 22
5-Oct-02 65
6-Oct-02 3
7-Oct-02 13
8-Oct-02 34
9-Oct-02 83
10-Oct-02 143
11-Oct-02 86
12-Oct-02 5
13-Oct-02 3
14-Oct-02 3
15-Oct-02 3
16-Oct-02 3
17-Oct-02 3
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27-Oct-02 3
28-Oct-02 3
29-Oct-02 8
30-Oct-02 3
31-Oct-02 3
1-Nov-02 26
2-Nov-02 3
3-Nov-02 3
4-Nov-02 53
5-Nov-02 64
6-Nov-02 88
7-Nov-02 3
8-Nov-02 3
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21-Nov-02 56
22-Nov-02 73
23-Nov-02 39
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11-Apr-03 23
12-Apr-03 172
13-Apr-03 210
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15-Apr-03 278
16-Apr-03 202
17-Apr-03 125
18-Apr-03 101
19-Apr-03 61
20-Apr-03 57
21-Apr-03 54
22-Apr-03 58
23-Apr-03 78