Site ID: 2212 Lat. 15.6116 Philippines Nueva Ecija
River: Pampanga Long. 121.1337
Site name: Bongabon Contributing area: 2291 km2 Ratio to Comparison Station: 0.08
Latest measurement: 13-Jul-10 Mean annual runoff: 3283 mm (2003-2009)
Hydrologic status: 3 Flood Total runoff this year (2010): 2533.4 mm
Latest M/C ratio: 1.46 Seven day total: 426.8 mm
Estimated current discharge: 1481 m3/sec Percent of mean 7-day total: 133.7 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 2590 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 2434 m3/sec (from Gumbel Extreme Value analysis)
Comparison Station Information:  Boluo (2186950)           Contributing Area:   sq mi 28239 sq km
(Data from this gaging station are used for the calibration to discharge, with an adjustment for different contributing areas)
Notes: Final calibration to discharge has not yet been accomplished.
Discharge and runoff, based on satellite remote sensing (NASA AMSR-E data)
(For U.S, sites, nearby ground station discharge may also be shown)
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
127 2002 no data no data no data no data no data no data no data 111.3 2.9 3.9 3.8 5.1
521 2003 51.2 3.5 3.9 3.8 3.9 6.4 278.0 38.8 3.8 3.9 111.1 12.3
207 2004 3.9 3.6 3.9 3.8 3.9 3.8 128.7 26.5 3.8 3.9 3.8 17.5
2197 2005 4.7 3.5 3.9 3.8 4.6 8.3 425.2 341.4 3.9 6.4 150.3 1241.2
3921 2006 1659.7 355.1 4.9 3.8 41.4 206.9 922.7 719.0 3.8 3.9 0.0 0.0
5194 2007 1470.3 269.3 3.9 3.8 116.6 598.1 1100.8 176.8 3.8 3.9 184.0 1262.7
5893 2008 1495.2 196.4 3.9 3.8 138.3 651.7 1786.2 238.7 3.8 4.9 94.3 1275.8
5046 2009 1453.9 148.2 3.9 15.3 12.9 312.0 1628.2 357.7 5.5 41.6 106.0 960.9
2533 2010 1541.4 238.9 4.3 7.6 7.5 62.2 671.5 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 3283 Standard Deviation: 6.4
Trend in Annual Runoff (slope):  -73
Discharge is estimated via a rating equation directly from the remote sensing data (M/C ratio) shown below.
Green line records upwelling microwave emission from within 5 km radius of a calbration land target. 
Explanation:   Blue line is emission from within 5 km radius of the measurement target centered over the river.
Brown line is their ratio (M/C; "HR" in Brakenridge et al 2007; 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 using available ground-based discharge information.
GoogleEarth View of Measurement Site
Return
Estimated
Disharge
Data
Date m3/sec
22-Jul-02 28
23-Jul-02 28
24-Jul-02 74
25-Jul-02 242
26-Jul-02 553
27-Jul-02 70
28-Jul-02 206
29-Jul-02 90
30-Jul-02 277
31-Jul-02 607
1-Aug-02 607
2-Aug-02 688
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02
10-Aug-02 95
11-Aug-02 95
12-Aug-02 3
13-Aug-02 634
14-Aug-02 3
15-Aug-02 66
16-Aug-02 36
17-Aug-02 136
18-Aug-02 229
19-Aug-02 98
20-Aug-02 155
21-Aug-02 3
22-Aug-02 3
23-Aug-02 3
24-Aug-02 3
25-Aug-02 3
26-Aug-02 3
27-Aug-02 71
28-Aug-02 3
29-Aug-02 3
30-Aug-02 3
31-Aug-02 3
1-Sep-02 3
2-Sep-02 3
3-Sep-02 3
4-Sep-02 3
5-Sep-02 3
6-Sep-02 3
7-Sep-02 3
8-Sep-02 3
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14-Sep-02 3
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22-Sep-02 3
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29-Sep-02 3
30-Sep-02 3
1-Oct-02 3
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27-Dec-02 20
28-Dec-02 20
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1-Jan-03 3
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19-Jan-03 123
20-Jan-03 337
21-Jan-03 370
22-Jan-03 358
23-Jan-03 72
24-Jan-03 15
25-Jan-03 3
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1-Jun-03 3
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5-Jun-03 12
6-Jun-03 12
7-Jun-03 3
8-Jun-03 3 </