Site ID: 529 Lat. 48.8368 USA North Dakota
River: Red River (of the North) Long. -97.1811
Site name: Pembina Contributing area: 82837 km2 Ratio to Comparison Station: 0.92
Latest measurement: 28-Oct-09 Mean annual runoff: 88 mm (2003-2007)
Hydrologic status: 2 Normal flow Total runoff this year: 78 mm
Latest M/C ratio: 1.11 Seven day total: 1 mm
Estimated current discharge: 252 m3/sec Percent of mean 7-day total: 98.7 % (today's value compared to mean for same period, 2003-2007)
Ice-cover determination: M<-9000 5 yr recurrence flood: 1251 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow, 2 = Normal flow, 3 = Flood, 4 = Major Flood 1410 m3/sec (from Gumbel Extreme Value analysis)
Comparison Station Information:  #    USGS 05092000 RED RIVER OF THE NORTH AT DRAYTON, ND Contributing Area: 34800 sq mi 90129 sq km
(Data from this gaging station are used for the calibration to discharge, with an adjustment for different contributing areas)
Notes: Rating equation is based on comparison of 4-day running means 
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
32 2002 no data no data no data no data no data no data no data 5.6 7.5 7.1 6.1 6.0
76 2003 5.8 4.8 5.4 7.1 8.3 8.2 6.3 6.6 6.5 6.7 4.4 6.1
78 2004 5.3 5.0 5.5 11.5 5.5 6.7 6.3 6.2 6.8 7.2 5.9 5.6
87 2005 5.3 4.8 5.3 10.4 10.0 16.9 2.1 6.3 6.1 7.9 6.4 5.9
101 2006 5.3 4.8 5.9 35.1 16.4 6.1 6.1 6.9 7.8 6.9 0.0 0.0
96 2007 5.3 4.8 7.5 10.5 11.6 11.1 8.3 7.8 7.5 8.2 6.7 7.0
78 2008 5.3 5.0 5.3 5.8 7.8 8.0 6.3 6.7 7.2 8.0 6.9 5.4
113 2009 5.3 4.8 6.2 31.1 23.0 10.5 9.5 6.7 8.3 8.0 0.0 0.0
Mean Annual Runoff: 86 Standard Deviation: 10.8
Trend in Annual Runoff:  2.23
Discharge is estimated directly via a rating equation from the remote sensing data (M/C ratio) shown below.