Site ID: 2213 Lat. 15.1235 Philippines Nueva Ecija
River: Pampanga Long. 120.8462
Site name: Candaba Contributing area: 7737 km2 Ratio to Comparison Station: 0.27
Latest measurement: 12-Jul-10 Mean annual runoff: 8430 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 2447.8 mm
Latest M/C ratio: 1.41 Seven day total: 103.1 mm
Estimated current discharge: 1249 m3/sec Percent of mean 7-day total: 46.5 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 7057 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 7067 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
3214 2002 no data no data no data no data no data no data no data 971.4 499.8 530.8 648.4 563.1
5873 2003 165.2 4.6 53.9 18.3 111.5 1270.8 1123.6 892.8 539.2 625.9 523.7 543.3
4854 2004 31.6 1.8 3.5 2.5 153.2 1023.5 1070.3 415.9 322.9 328.4 620.1 880.1
7596 2005 136.6 7.6 28.1 186.8 240.8 380.9 1239.4 862.6 1056.2 964.8 1244.4 1247.5
8054 2006 863.7 769.5 391.7 273.6 222.2 232.5 837.8 1821.6 1361.1 1280.6 0.0 0.0
9675 2007 744.6 285.8 248.1 275.6 310.4 407.4 654.4 1404.2 1103.7 1270.3 1413.5 1556.8
10805 2008 851.1 262.2 237.4 285.6 669.7 889.1 1304.0 1344.8 1054.2 1376.2 1182.0 1349.1
12156 2009 599.6 248.4 284.9 351.6 762.9 1090.8 1387.6 1391.7 1200.2 1780.0 1708.4 1349.8
2448 2010 459.4 182.9 300.7 376.0 473.7 427.5 227.7 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 8430 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 6936
23-Jul-02 6936
24-Jul-02 6832
25-Jul-02 6731
26-Jul-02 7180
27-Jul-02 5282
28-Jul-02 5287
29-Jul-02 4876
30-Jul-02 5053
31-Jul-02 5566
1-Aug-02 5566
2-Aug-02 5419
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02
10-Aug-02 2546
11-Aug-02 2546
12-Aug-02 2291
13-Aug-02 2229
14-Aug-02 4017
15-Aug-02 4301
16-Aug-02 3705
17-Aug-02 3792
18-Aug-02 3039
19-Aug-02 2769
20-Aug-02 4023
21-Aug-02 4898
22-Aug-02 4898
23-Aug-02 4417
24-Aug-02 4519
25-Aug-02 3900
26-Aug-02 4126
27-Aug-02 4670
28-Aug-02 2766
29-Aug-02 2766
30-Aug-02 1660
31-Aug-02 2117
1-Sep-02 2584
2-Sep-02 2772
3-Sep-02 3022
4-Sep-02 3166
5-Sep-02 3466
6-Sep-02 3513
7-Sep-02 3513
8-Sep-02 2144
9-Sep-02 1090
10-Sep-02 167
11-Sep-02 596
12-Sep-02 430
13-Sep-02 1559
14-Sep-02 1559
15-Sep-02
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02
22-Sep-02 1095
23-Sep-02 1095
24-Sep-02 1840
25-Sep-02 1709
26-Sep-02 2025
27-Sep-02 1829
28-Sep-02 1448
29-Sep-02 2069
30-Sep-02 2069
1-Oct-02 1668
2-Oct-02 1684
3-Oct-02 1295
4-Oct-02 1433
5-Oct-02 1735
6-Oct-02 2124
7-Oct-02 2530
8-Oct-02 2372
9-Oct-02 2372
10-Oct-02 1755
11-Oct-02 1601
12-Oct-02 1511
13-Oct-02 1627
14-Oct-02 1492
15-Oct-02 1418
16-Oct-02 1469
17-Oct-02 572
18-Oct-02 1022
19-Oct-02 968
20-Oct-02 1124
21-Oct-02 1515
22-Oct-02 1603
23-Oct-02 1929
24-Oct-02 1872
25-Oct-02 1872
26-Oct-02 1871
27-Oct-02 1670
28-Oct-02 1539
29-Oct-02 785
30-Oct-02 334
31-Oct-02 769
1-Nov-02 610
2-Nov-02 1961
3-Nov-02 2395
4-Nov-02 1611
5-Nov-02 1470
6-Nov-02 1479
7-Nov-02 863
8-Nov-02 1117
9-Nov-02 1678
10-Nov-02 1678
11-Nov-02 1912
12-Nov-02 2059
13-Nov-02 1983
14-Nov-02 2448
15-Nov-02 2883
16-Nov-02 2513
17-Nov-02 2513
18-Nov-02 1626
19-Nov-02 1942
20-Nov-02 2200
21-Nov-02 2463
22-Nov-02 2784
23-Nov-02 2508
24-Nov-02 2526
25-Nov-02 1967
26-Nov-02 1967
27-Nov-02 2086
28-Nov-02 1741
29-Nov-02 1427
30-Nov-02 1647
1-Dec-02 1502
2-Dec-02 2256
3-Dec-02 2336
4-Dec-02 2472
5-Dec-02 2334
6-Dec-02 1802
7-Dec-02 1938
8-Dec-02 1821
9-Dec-02 2001
10-Dec-02 2486
11-Dec-02 2381
12-Dec-02 2381
13-Dec-02 1529
14-Dec-02 1462
15-Dec-02 546
16-Dec-02 775
17-Dec-02 757
18-Dec-02 540
19-Dec-02 1156
20-Dec-02 1371
21-Dec-02 1599
22-Dec-02 1653
23-Dec-02 1886
24-Dec-02 1878
25-Dec-02 1661
26-Dec-02 2012
27-Dec-02 1528
28-Dec-02 1528
29-Dec-02 1105
30-Dec-02 1037
31-Dec-02 694
1-Jan-03 694
2-Jan-03 780
3-Jan-03 648
4-Jan-03 681
5-Jan-03 940
6-Jan-03 944
7-Jan-03 678
8-Jan-03 653
9-Jan-03 474
10-Jan-03 521
11-Jan-03 833
12-Jan-03 815
13-Jan-03 815
14-Jan-03 235
15-Jan-03 177
16-Jan-03 3
17-Jan-03 163
18-Jan-03 297
19-Jan-03 687
20-Jan-03 653
21-Jan-03 583
22-Jan-03 560
23-Jan-03 275
24-Jan-03 331
25-Jan-03 337
26-Jan-03 305
27-Jan-03 458
28-Jan-03 123
29-Jan-03 123
30-Jan-03 3
31-Jan-03 3
1-Feb-03 3
2-Feb-03 3
3-Feb-03 3
4-Feb-03 3
5-Feb-03 30
6-Feb-03 107
7-Feb-03 107
8-Feb-03 3
9-Feb-03 3
10-Feb-03 3
11-Feb-03 3
12-Feb-03 3
13-Feb-03 3
14-Feb-03 3
15-Feb-03 3
16-Feb-03 51
17-Feb-03 36
18-Feb-03 3
19-Feb-03 3
20-Feb-03 3
21-Feb-03 3
22-Feb-03 3
23-Feb-03 3
24-Feb-03 3
25-Feb-03 3
26-Feb-03 3
27-Feb-03 3
28-Feb-03 3
1-Mar-03 3
2-Mar-03 3
3-Mar-03 3
4-Mar-03 3
5-Mar-03 3
6-Mar-03 3
7-Mar-03 3
8-Mar-03 3
9-Mar-03 3
10-Mar-03 3
11-Mar-03 3
12-Mar-03 3
13-Mar-03 3
14-Mar-03 3
15-Mar-03 3
16-Mar-03 3
17-Mar-03 3
18-Mar-03 3
19-Mar-03 3
20-Mar-03 3
21-Mar-03 524
22-Mar-03 300
23-Mar-03 464
24-Mar-03 557
25-Mar-03 821
26-Mar-03 903
27-Mar-03 632
28-Mar-03 547
29-Mar-03 3
30-Mar-03 3
31-Mar-03 3
1-Apr-03 26
2-Apr-03 3
3-Apr-03 3
4-Apr-03 3
5-Apr-03 3
6-Apr-03 3
7-Apr-03 3
8-Apr-03 3