Site ID: 43 Lat. 29.3377 China Hunan
River: Dongting Long. 113.0105
Site name: Yueyang Contributing area: 240048 km2 Ratio to Comparison Station: 10.33
Latest measurement: 22-Nov-09 Mean annual runoff: 392 mm (2003-2007)
Hydrologic status: 2 Normal flow Total runoff this year: 504 mm
Latest M/C ratio: 1.56 Seven day total: 2 mm
Estimated current discharge: 1939 m3/sec Percent of mean 7-day total: 59.5 % (today's value compared to mean for same period, 2003-2007)
Ice-cover determination: 5 yr recurrence flood: 11706 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow, 2 = Normal flow, 3 = Flood, 4 = Major Flood 11263 m3/sec (from Gumbel Extreme Value analysis)
Comparison Station Information:  Tokwe Confluence D/s C/s (1495240)       Contributing Area: 7280 sq mi 23237 sq km
(Data from this gaging station are used for the calibration to discharge, with an adjustment for different contributing areas)
Notes: Comparison station is placeholder, only; this site is not yet calibrated to actual discharge
Discharge and runoff, based on satellite remote sensing (NASA AMSR-E data)
(For U.S, sites, nearby ground station discharge may also be shown)
2008-Present
2002-Present
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
150 2002 no data no data no data no data no data no data no data 34.6 44.6 35.9 20.8 14.2
333 2003 16.0 12.7 12.8 13.6 21.1 35.5 42.8 43.4 56.3 40.6 19.6 18.6
303 2004 14.5 17.3 16.4 13.4 27.0 32.6 34.8 38.8 41.3 32.9 18.6 15.3
464 2005 12.4 8.7 20.4 17.5 36.0 46.1 45.0 79.7 86.2 68.2 23.9 20.0
360 2006 16.0 17.3 25.0 17.4 32.0 60.7 66.1 56.0 39.8 29.8 0.0 0.0
502 2007 16.3 21.9 19.8 11.3 20.9 54.6 68.5 102.2 79.5 58.8 30.0 18.1
504 2008 12.0 15.7 19.2 14.0 25.8 51.5 61.9 87.3 89.8 54.7 46.4 25.2
463 2009 18.4 15.9 20.5 15.0 40.2 64.0 62.4 86.4 82.3 38.9 18.6 0.0
Discharge is estimated directly via a rating equation from the remote sensing data (M/C ratio) shown below.