Site ID: 2214 Lat. 14.8962 Philippines Bulacan
River: Pampanga Delta Long. 120.7246
Site name: Malolos Contributing area: 9620 km2 Ratio to Comparison Station: 0.41
Latest measurement: 6-Nov-09 Mean annual runoff: 11992 mm (2003-2007)
Hydrologic status: 2 Normal flow Total runoff this year: 17279 mm
Latest M/C ratio: 2.14 Seven day total: 2 mm
Estimated current discharge: 5236 m3/sec Percent of mean 7-day total: 125.5 % (today's value compared to mean for same period, 2003-2007)
Ice-cover determination: 5 yr recurrence flood: 10289 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow, 2 = Normal flow, 3 = Flood, 4 = Major Flood 9806 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
3296 2002 no data no data no data no data no data no data no data 694.4 419.7 528.9 726.6 926.9
8149 2003 699.1 452.2 548.1 641.8 694.3 745.1 992.7 965.6 633.9 528.8 369.4 877.6
6504 2004 690.0 441.6 406.7 503.7 548.0 620.5 590.4 616.7 631.0 337.0 244.9 873.9
12873 2005 731.0 502.3 943.5 1310.2 1547.8 711.3 685.7 1152.7 1187.6 1331.1 1450.2 1319.5
15088 2006 1605.5 1534.9 1528.5 1874.5 1616.3 1490.4 1125.8 1188.4 1440.3 1683.2 0.0 0.0
17347 2007 1438.0 1512.4 1597.1 1829.6 1702.6 1194.8 1229.2 1185.3 1200.6 1499.7 1377.2 1580.5
17279 2008 1643.1 1449.4 1394.1 1747.0 1227.2 1183.8 1164.0 1438.1 1423.2 1571.4 1352.5 1685.4
14722 2009 1634.6 1392.1 1522.5 1541.6 1652.5 1116.6 1072.7 1371.2 1285.3 1688.4 444.9 0.0
Discharge is estimated directly via a rating equation from the remote sensing data (M/C ratio) shown below.