| Site ID: | 311 | Lat. | 61.2510 | Russia | Sakha (Yakutiya) | ||||||||||||||
| River: | Lena | Long. | 128.4978 | ||||||||||||||||
| Site name: | Bulgunnyakhtakh | Contributing area: | 882350 | km2 | Ratio to Comparison Station: | 31.25 | |||||||||||||
| Latest measurement: | 3-Aug-10 | Mean annual runoff: | 24 | mm | (2003-2009) | ||||||||||||||
| Hydrologic status: | 2 | Normal flow | Total runoff this year (2010): | 13.7 | mm | ||||||||||||||
| Latest M/C ratio: | 1.47 | Seven day total: | 1.0 | mm | |||||||||||||||
| Estimated current discharge: | 1547 | m3/sec | Percent of mean 7-day total: | 97.2 | % | (today's value compared to mean for same period, 2003-2009) | |||||||||||||
| 5 yr recurrence flood: | 3335 | m3/sec | (from Log Pearson III analysis) | ||||||||||||||||
| Status Codes: 1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood | 3415 | 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) | |||||||||||||||||||