Site ID: 1968 Lat. 42.7895 Italy 0
River: Ombrone Long. 11.0911
Site name: 0 Contributing area: 3602 km2 Ratio to Comparison Station: 0.05
Latest measurement: 19-Nov-09 Mean annual runoff: 695 mm (2003-2008)
Hydrologic status: 3 Flood Total runoff this year (2010): 0 mm 2010
Latest M/C ratio: 1.24 Seven day total: 33 mm
Estimated current discharge: 214 m3/sec Percent of mean 7-day total: 160.3 % (today's value compared to mean for same period, 2003-2007)
Ice-cover determination: 5 yr recurrence flood: 268 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow, 2 = Normal flow, 3 = Flood, 4 = Major Flood 264 m3/sec (from Gumbel Extreme Value analysis)
Comparison Station Information:  Pontelagoscuro (6348800)         Contributing Area:   sq mi 78362 sq km
(Data from this gaging station are used for the calibration to discharge, with an adjustment for different contributing areas)
Notes:
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
319 2002 no data no data no data no data no data no data no data 23.5 43.9 52.0 101.0 98.8
571 2003 91.5 56.6 58.6 47.0 16.7 29.0 24.1 28.5 36.1 49.0 44.9 89.3
435 2004 76.8 56.3 56.2 34.8 11.6 9.9 11.3 12.4 12.3 27.6 60.6 65.5
771 2005 67.3 45.0 69.5 79.1 49.9 36.9 2.7 55.6 89.4 87.2 80.5 107.5
749 2006 74.2 71.6 72.6 71.2 44.4 64.6 69.3 69.2 105.1 106.8 0.0 0.0
818 2007 109.5 71.7 76.2 54.6 38.4 40.6 49.1 62.4 48.8 77.2 81.3 108.4
826 2008 114.4 83.5 77.0 74.8 38.4 51.1 51.3 55.0 59.4 63.9 102.5 54.6
826 2009 44.9 65.3 104.4 103.5 66.8 77.4 67.2 61.4 55.7 84.2 95.6 0.0
0 2010 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 9 Standard Deviation: 152
Trend in Annual Runoff (slope):  56.05
Discharge is estimated via a rating equation directly from the remote sensing data (M/C ratio) shown below.