Satellite River Discharge Measurements G. R. Brakenridge*
S. Cohen*
DFO Site Number Site 472 (USA) Pearl -90.819 -88.729 Deg. Long. A. J. Kettner*
GFDS Site Number 464 River 29.779 31.869 Deg. Lat. J.P.M. Syvitski*
USA 17269.00 sq km Contributing Area T. De Groeve**
Last measured: 12/31/14 Obtain Data S.V. Nghiem***
Discharge: 9 m3/sec Status: 1 (1, low flow; 2, normal flow; 3, moderate flood; 4, major flood) *CSDMS/INSTAAR, University of Colorado
Runoff: 0.05 mm 2% (runoff compared to average for this date, 2003-2011) **Joint Research Centre, Ispra, Italy
Record since January 1, 2011 Technical Summary ***Jet Propulsion Laboratory, California
Annual Maximum Discharge
2002 1202 m3/sec
2003 1177 m3/sec
2004 1558 m3/sec
2005 2608 m3/sec
2006 1159 m3/sec
2007 1428 m3/sec
2008 1600 m3/sec
2009 1756 m3/sec
2010 1076 m3/sec
2011 2469 m3/sec
2012 2313 m3/sec
2013 516 m3/sec
2014 1716 m3/sec
2015 m3/sec
Ground Station, if available: #    USGS 02489500 Pearl River near Bogalusa, LA Notes: 2016 m3/sec
Complete record
Flood Frequency Analysis
(Log Pearson III, 10 yrs, 2002-2011)
10 yr
2316 m3/sec
5 yr
1952 m3/sec
1.33 yr
1222 m3/sec
5th percentile (low flow)
52 m3/sec
Annual Mean Discharge
2002 263 m3/sec
2003 321 m3/sec
2004 325 m3/sec
2005 273 m3/sec
Monthly Total Runoff (mm), measured from satellite-based discharge data 2006 345 m3/sec
Total 2007 296 m3/sec
Jan Feb Mar April May June July Aug Sept Oct Nov Dec Yr 2008 321 m3/sec
2002 26.9 47.9 31.1 30.6 25.4 30.2 38.8 62.4 36.1 51.9 45.6 55.3 482.1 2009 399 m3/sec
2003 65.3 57.6 95.7 55.2 31.7 58.2 36.7 30.4 35.9 57.7 24.0 36.8 585.2 2010 330 m3/sec
2004 44.1 83.9 70.8 30.2 36.6 95.7 59.1 38.9 21.6 24.7 25.5 55.8 587.0 2011 267 m3/sec
2005 42.6 69.9 56.5 66.4 42.5 28.2 40.4 35.9 24.0 20.6 36.4 34.8 498.1 2012 261 m3/sec
2006 50.2 111.8 89.4 49.0 42.0 30.8 41.1 29.5 34.4 47.9 44.8 58.7 629.5 2013 270 m3/sec
2007 114.2 57.1 49.7 53.6 45.5 44.7 35.0 25.0 20.9 26.8 31.0 31.8 535.4 2014 281 m3/sec
2008 47.9 79.5 89.8 32.7 73.5 20.7 43.4 23.3 38.7 23.6 33.9 78.8 585.7 2015 m3/sec
2009 103.9 68.9 69.6 82.3 55.3 41.3 33.0 51.7 43.1 72.8 30.0 77.7 729.6 2016 m3/sec
2010 76.9 104.7 67.1 45.9 41.6 67.6 34.3 34.6 39.0 37.9 25.1 28.4 603.2
2011 37.5 37.4 96.8 35.0 47.5 43.8 36.5 15.2 80.7 14.7 23.9 14.7 483.6
2012 38.80 62.68 46.60 58.99 50.38 36.17 74.67 31.37 21.96 17.13 19.29 18.24 476.3
2013 0.0
2014 0.0
2015 0.0
2016 0.0
2017 0.0
-59386.11 59076.85
(coefficients for the rating curve)
Rating curve is a comparison of modeled monthly mean, maximum monthly, and minimum
monthly discharges, 2003-2006, to the time-equivalent microwave signal statistics.
Notes:   1. Scatter in rating curve plots includes model errors.
2. In some cases, ground-based station data are also provided for comparison.
Daily Data Site 85 Data Compilation Area Monthly Statistics
Mean Ground Total Mean Maximum Minimum Total Mean Maximum Minimum