Site ID: 82 Lat. 63.8905 Russia Sakha (Yakutiya)
River: Viluj Long. 125.5849
Site name: Khatyryk-Khom Contributing area: 449292 km2 Ratio to Comparison Station: 0.84
Latest measurement: 30-Jul-10 Mean annual runoff: 26 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 14.8 mm
Latest M/C ratio: 1.33 Seven day total: 1.4 mm
Estimated current discharge: 893 m3/sec Percent of mean 7-day total: 105.8 % (today's value compared to mean for same period, 2003-2009)
Ice-cover determination: 5 yr recurrence flood: 2103 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 2129 m3/sec (from Gumbel Extreme Value analysis)
Comparison Station Information:  Pakse (2469260)           Contributing Area:   sq mi 536010 sq km
(Data from this gaging station are used for the calibration to discharge, with an adjustment for different contributing areas)
Notes: Calibration to nearby ground station 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
8 2002 no data no data no data no data no data no data no data 4.5 3.1 0.1 0.0 0.0
25 2003 0.0 0.0 0.1 0.0 1.0 7.1 7.0 5.3 3.6 1.1 0.0 0.0
26 2004 0.0 0.0 0.0 0.8 1.4 7.0 7.3 5.0 3.8 0.3 0.0 0.0
24 2005 0.0 0.0 0.0 1.0 3.4 6.0 5.9 4.4 3.3 0.4 0.0 0.0
23 2006 0.0 0.0 0.0 0.5 1.5 7.2 5.6 3.8 3.8 0.6 0.0 0.0
27 2007 0.0 0.0 0.0 0.6 2.7 7.7 5.7 4.9 4.0 1.0 0.0 0.0
32 2008 0.0 0.0 0.1 0.1 4.5 9.1 6.1 6.3 4.6 0.9 0.0 0.0
28 2009 0.0 0.0 0.0 1.0 2.5 6.7 6.8 4.8 4.2 1.6 0.0 0.0
15 2010 0.0 0.0 0.0 0.4 1.0 6.1 6.7 0.4 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 26 Standard Deviation: 6.4
Trend in Annual Runoff (slope):  5.9
Discharge is estimated via a rating equation directly from the remote sensing data (M/C ratio) shown below.
Explanation:   Green line records upwelling microwave emission from within 5 km radius of a calbration land target; blue line is emission from within 5 km radious of the measurement target centered over the river.
Brown line is their ratio (M/C; 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. For calibration status, see "notes" entry, above.
GoogleEarth View of Measurement Site
Return
Estimated
Disharge
Data
Date m3/sec
22-Jul-02 1116
23-Jul-02 1116
24-Jul-02 1027
25-Jul-02 1006
26-Jul-02 979
27-Jul-02 890
28-Jul-02 842
29-Jul-02 706
30-Jul-02 736
31-Jul-02 664
1-Aug-02 609
2-Aug-02 809
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 891
10-Aug-02 1264
11-Aug-02 1240
12-Aug-02 1168
13-Aug-02 1124
14-Aug-02 1006
15-Aug-02 976
16-Aug-02 926
17-Aug-02 897
18-Aug-02 814
19-Aug-02 793
20-Aug-02 820
21-Aug-02 984
22-Aug-02 1049
23-Aug-02 985
24-Aug-02 1029
25-Aug-02 1007
26-Aug-02 910
27-Aug-02 962
28-Aug-02 935
29-Aug-02 857
30-Aug-02 640
31-Aug-02 624
1-Sep-02 566
2-Sep-02 608
3-Sep-02 817
4-Sep-02 969
5-Sep-02 911
6-Sep-02 864
7-Sep-02 843
8-Sep-02 713
9-Sep-02 764
10-Sep-02 836
11-Sep-02 868
12-Sep-02 870
13-Sep-02 902
14-Sep-02 887
15-Sep-02 845
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 384
22-Sep-02 570
23-Sep-02 542
24-Sep-02 481
25-Sep-02 421
26-Sep-02 365
27-Sep-02 332
28-Sep-02 304
29-Sep-02 308
30-Sep-02 249
1-Oct-02 105
2-Oct-02 84
3-Oct-02 3
4-Oct-02 3
5-Oct-02 3
6-Oct-02 3
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19-Mar-03 79
20-Mar-03 46
21-Mar-03 8
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29-Mar-03 89
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31-Mar-03 79
1-Apr-03 85
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