Site ID: 2199 Lat. 18.1427 Philippines Cagayan Valley
River: Cagayan Mouth Long. 121.6585
Site name: Lal-lo Contributing area: 27527 km2 Ratio to Comparison Station: 1.28
Latest measurement: 6-Nov-09 Mean annual runoff: 669 mm (2003-2008)
Hydrologic status: 3 Flood Total runoff this year (2010): 0 mm 2010
Latest M/C ratio: 1.41 Seven day total: 25 mm
Estimated current discharge: 1713 m3/sec Percent of mean 7-day total: 144.2 % (today's value compared to mean for same period, 2003-2007)
Ice-cover determination: 5 yr recurrence flood: 2546 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow, 2 = Normal flow, 3 = Flood, 4 = Major Flood 2320 m3/sec (from Gumbel Extreme Value analysis)
Comparison Station Information:  Temerloh (5224500)           Contributing Area:   sq mi 21579 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
143 2002 no data no data no data no data no data no data no data 25.4 26.3 32.9 31.4 27.0
299 2003 22.0 15.9 24.8 24.5 17.4 18.7 31.4 41.2 30.4 29.1 20.5 22.6
229 2004 14.7 16.8 21.5 18.4 17.9 21.7 21.3 22.9 27.1 21.6 12.9 12.2
703 2005 12.6 16.4 28.3 54.9 44.3 40.3 63.8 72.0 67.3 78.6 89.9 134.7
747 2006 127.6 72.4 64.0 55.8 59.4 68.0 84.6 84.8 63.0 67.3 0.0 0.0
962 2007 128.6 59.2 49.8 50.6 51.4 70.3 91.3 75.7 54.8 76.0 98.6 156.1
1075 2008 116.2 57.4 55.7 49.9 84.9 83.4 107.0 85.9 63.4 83.9 127.0 160.7
905 2009 128.8 66.4 56.7 68.8 99.1 98.2 104.3 86.3 64.0 94.1 38.2 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: 326
Trend in Annual Runoff (slope):  5126.5
Discharge is estimated via a rating equation directly from the remote sensing data (M/C ratio) shown below.