Site ID: 307 Lat. 63.6004 Russia Sakha (Yakutiya)
River: Lena Long. 128.2821
Site name: Sinniges-Atakh Contributing area: 1670716 km2 Ratio to Comparison Station: 59.16
Latest measurement: 3-Aug-10 Mean annual runoff: 23 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 16.3 mm
Latest M/C ratio: 1.73 Seven day total: 1.2 mm
Estimated current discharge: 2824 m3/sec Percent of mean 7-day total: 98.2 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 5289 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 5237 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
5 2002 no data no data no data no data no data no data no data 2.9 1.9 0.5 0.0 0.0
16 2003 0.0 0.0 0.0 0.0 0.6 4.5 4.6 3.1 2.7 0.7 0.0 0.0
15 2004 0.0 0.0 0.0 0.0 0.8 4.8 4.0 2.8 1.9 0.9 0.0 0.0
24 2005 0.0 0.0 0.0 0.1 2.3 5.9 4.9 4.7 4.5 1.3 0.0 0.0
26 2006 0.0 0.0 0.0 0.0 1.9 6.8 6.3 5.0 4.5 1.5 0.0 0.0
27 2007 0.0 0.0 0.0 0.1 2.5 6.1 6.1 5.9 4.1 1.7 0.0 0.0
28 2008 0.0 0.0 0.0 0.0 2.0 6.8 6.2 6.4 4.4 2.0 0.0 0.0
28 2009 0.0 0.0 0.0 0.0 2.8 7.1 5.8 5.6 4.5 1.9 0.0 0.0
16 2010 0.0 0.0 0.0 0.0 2.7 6.1 6.6 0.8 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 23 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 2557
23-Jul-02 2557
24-Jul-02 2553
25-Jul-02 2319
26-Jul-02 1952
27-Jul-02 2054
28-Jul-02 2178
29-Jul-02 2330
30-Jul-02 2630
31-Jul-02 2731
1-Aug-02 2567
2-Aug-02 3408
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 2779
10-Aug-02 2863
11-Aug-02 2375
12-Aug-02 2350
13-Aug-02 2047
14-Aug-02 1863
15-Aug-02 1981
16-Aug-02 1911
17-Aug-02 2045
18-Aug-02 2177
19-Aug-02 2204
20-Aug-02 2109
21-Aug-02 2114
22-Aug-02 1996
23-Aug-02 2452
24-Aug-02 2295
25-Aug-02 2709
26-Aug-02 2600
27-Aug-02 2004
28-Aug-02 2256
29-Aug-02 1860
30-Aug-02 1584
31-Aug-02 1685
1-Sep-02 1592
2-Sep-02 1804
3-Sep-02 2079
4-Sep-02 1969
5-Sep-02 1958
6-Sep-02 2004
7-Sep-02 1694
8-Sep-02 1757
9-Sep-02 1712
10-Sep-02 1665
11-Sep-02 1982
12-Sep-02 2024
13-Sep-02 2243
14-Sep-02 2136
15-Sep-02 1833
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 917
22-Sep-02 620
23-Sep-02 917
24-Sep-02 1091
25-Sep-02 1067
26-Sep-02 1330
27-Sep-02 767
28-Sep-02 624
29-Sep-02 532
30-Sep-02 573
1-Oct-02 692
2-Oct-02 645
3-Oct-02 530
4-Oct-02 366
5-Oct-02 445
6-Oct-02 466
7-Oct-02 642
8-Oct-02 520
9-Oct-02 372
10-Oct-02 378
11-Oct-02 388
12-Oct-02 645
13-Oct-02 683
14-Oct-02 615
15-Oct-02 426
16-Oct-02 361
17-Oct-02 169
18-Oct-02 139
19-Oct-02 103
20-Oct-02 3
21-Oct-02 21
22-Oct-02 3
23-Oct-02 3
24-Oct-02 50
25-Oct-02 26
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
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24-Apr-03 12
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