Site ID: 2119 Lat. 24.7737 China Guangdong
River: Bei Long. 113.5773
Site name: Shaoguan Contributing area: 14643 km2 Ratio to Comparison Station: 0.63
Latest measurement: 8-Jan-10 Mean annual runoff: 613 mm (2003-2007)
Hydrologic status: 2 Normal flow Total runoff this year: 947 mm
Latest M/C ratio: 1.16 Seven day total: 1 mm
Estimated current discharge: 487 m3/sec Percent of mean 7-day total: 73.1 % (today's value compared to mean for same period, 2003-2007)
Ice-cover determination: 5 yr recurrence flood: 1091 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow, 2 = Normal flow, 3 = Flood, 4 = Major Flood 1052 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
186 2002 no data no data no data no data no data no data no data 22.5 33.0 48.6 43.2 39.1
458 2003 75.2 39.7 30.7 64.7 42.1 36.5 35.9 38.4 17.3 21.7 19.7 36.2
290 2004 32.5 26.3 25.5 39.1 33.7 12.5 23.7 25.0 9.5 14.2 16.2 31.5
680 2005 14.8 10.0 48.7 95.7 79.2 41.0 41.1 62.2 41.3 70.2 77.0 98.8
736 2006 84.0 59.3 84.9 112.2 70.5 58.2 62.7 75.7 65.8 62.5 0.0 0.0
899 2007 88.2 89.9 72.1 76.2 91.9 70.6 69.2 61.2 55.2 73.7 81.8 69.4
947 2008 63.2 77.2 91.9 99.3 87.1 59.4 67.9 56.6 65.6 89.2 89.8 100.2
774 2009 75.1 78.6 74.3 78.5 49.2 57.2 61.2 60.4 42.6 66.3 66.5 64.1
Discharge is estimated directly via a rating equation from the remote sensing data (M/C ratio) shown below.
Explanation:   Green line records upwelling microwave emission from a land parcel (ca 10 km x 10 km) near the river; blue line from a parcel 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.
When data above show calibration site values lower than for the measurement site, discharge estimation may not be possible.
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