Site ID: 2415 Lat. 7.7290 Sri Lanka North Eastern
River: Batticola Long. 81.5289
Site name: Karadiyanaru Contributing area: 1457 km2 Ratio to Comparison Station: 0.05
Latest measurement: 6-Sep-11 Mean annual runoff: 21957 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 9230.2 mm
Latest M/C ratio: 1.10 Seven day total: 87.5 mm
Estimated current discharge: 3 m3/sec Percent of mean 7-day total: 69.1 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 5406 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 5415 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
16094 2002 no data no data no data no data no data no data no data 3516.6 3236.3 3087.3 3658.6 2595.6
44044 2003 2665.1 3045.9 3274.9 2767.4 4323.8 3283.6 4529.6 5177.1 4169.1 4274.3 2907.5 3625.3
59864 2004 2902.5 2885.6 3671.8 3791.2 4899.8 6368.8 7942.1 7543.3 5562.8 5974.1 4483.6 3838.2
22483 2005 3695.3 3033.2 2107.2 1270.2 1037.6 2420.6 4941.7 1359.6 695.0 500.0 536.2 886.7
4702 2006 488.3 407.5 188.4 391.3 1376.1 460.1 433.8 350.3 182.8 423.5 0.0 0.0
7315 2007 387.4 492.6 595.4 315.5 484.1 418.6 686.6 901.5 496.3 966.5 571.7 998.5
7246 2008 767.7 350.6 1029.5 319.9 851.4 952.7 691.7 535.9 311.1 363.5 645.8 426.4
8048 2009 326.5 365.8 459.9 1368.2 978.6 729.9 311.3 394.3 375.8 213.4 1405.6 1119.0
9230 2010 749.2 697.8 686.0 1082.2 1082.5 408.0 729.8 936.2 486.2 951.9 461.1 959.5
Mean Annual Runoff (mm): 21957 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 1722
23-Jul-02 1722
24-Jul-02 1352
25-Jul-02 797
26-Jul-02 1873
27-Jul-02 1777
28-Jul-02 2019
29-Jul-02 2019
30-Jul-02 1402
31-Jul-02 1402
1-Aug-02 2161
2-Aug-02 2161
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 1191
10-Aug-02 1191
11-Aug-02 1374
12-Aug-02 1374
13-Aug-02 3291
14-Aug-02 3291
15-Aug-02 5108
16-Aug-02 4637
17-Aug-02 4279
18-Aug-02 2855
19-Aug-02 1938
20-Aug-02 2948
21-Aug-02 2948
22-Aug-02 3372
23-Aug-02 2795
24-Aug-02 1559
25-Aug-02 1818
26-Aug-02 2037
27-Aug-02 1715
28-Aug-02 1680
29-Aug-02 910
30-Aug-02 910
31-Aug-02 1760
1-Sep-02 1211
2-Sep-02 1329
3-Sep-02 1095
4-Sep-02 446
5-Sep-02 765
6-Sep-02 765
7-Sep-02 2422
8-Sep-02 2509
9-Sep-02 3146
10-Sep-02 3152
11-Sep-02 2811
12-Sep-02 2833
13-Sep-02 2956
14-Sep-02 2750
15-Sep-02 2750
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 3179
22-Sep-02 3179
23-Sep-02 2784
24-Sep-02 2451
25-Sep-02 2307
26-Sep-02 1898
27-Sep-02 1741
28-Sep-02 2315
29-Sep-02 2105
30-Sep-02 1677
1-Oct-02 1677
2-Oct-02 824
3-Oct-02 571
4-Oct-02 789
5-Oct-02 634
6-Oct-02 204
7-Oct-02 1993
8-Oct-02 1993
9-Oct-02 2866
10-Oct-02 2574
11-Oct-02 2316
12-Oct-02 1881
13-Oct-02 1882
14-Oct-02 1872
15-Oct-02 1300
16-Oct-02 2200
17-Oct-02 2200
18-Oct-02 2042
19-Oct-02 1489
20-Oct-02 1053
21-Oct-02 850
22-Oct-02 485
23-Oct-02 761
24-Oct-02 761
25-Oct-02 3081
26-Oct-02 2644
27-Oct-02 3257
28-Oct-02 2664
29-Oct-02 1864
30-Oct-02 1877
31-Oct-02 1460
1-Nov-02 2629
2-Nov-02 2629
3-Nov-02 1332
4-Nov-02 1252
5-Nov-02 388
6-Nov-02 856
7-Nov-02 1505
8-Nov-02 2145
9-Nov-02 2145
10-Nov-02 2374
11-Nov-02 1764
12-Nov-02 2296
13-Nov-02 2534
14-Nov-02 2580
15-Nov-02 3509
16-Nov-02 3188
17-Nov-02 3242
18-Nov-02 3242
19-Nov-02 1839
20-Nov-02 1484
21-Nov-02 756
22-Nov-02 703
23-Nov-02 651
24-Nov-02 1730
25-Nov-02 1730
26-Nov-02 2897
27-Nov-02 2489
28-Nov-02 2576
29-Nov-02 2624
30-Nov-02 2610
1-Dec-02 2203
2-Dec-02 1692
3-Dec-02 1319
4-Dec-02 1319
5-Dec-02 1914
6-Dec-02 1620
7-Dec-02 1426
8-Dec-02 1691
9-Dec-02 1633
10-Dec-02 1020
11-Dec-02 1020
12-Dec-02 496
13-Dec-02 1116
14-Dec-02 2078
15-Dec-02 1844
16-Dec-02 2204
17-Dec-02 1306
18-Dec-02 643
19-Dec-02 70
20-Dec-02 70
21-Dec-02 880
22-Dec-02 804
23-Dec-02 1434
24-Dec-02 1371
25-Dec-02 923
26-Dec-02 1312
27-Dec-02 1312
28-Dec-02 1754
29-Dec-02 2144
30-Dec-02 2760
31-Dec-02 2395
1-Jan-03 2486
2-Jan-03 1963
3-Jan-03 1380
4-Jan-03 1269
5-Jan-03 1269
6-Jan-03 2095
7-Jan-03 1928
8-Jan-03 2339
9-Jan-03 1877
10-Jan-03 1316
11-Jan-03 844
12-Jan-03 844
13-Jan-03 1751
14-Jan-03 1425
15-Jan-03 1161
16-Jan-03 1024
17-Jan-03 462
18-Jan-03 972
19-Jan-03 1565
20-Jan-03 1762
21-Jan-03 1762
22-Jan-03 1698
23-Jan-03 1067
24-Jan-03 1123
25-Jan-03 1039
26-Jan-03 433
27-Jan-03 1125
28-Jan-03 1125
29-Jan-03 1724
30-Jan-03 1897
31-Jan-03 2223
1-Feb-03 1672
2-Feb-03 1540
3-Feb-03 1240
4-Feb-03 717
5-Feb-03 2468
6-Feb-03 2468
7-Feb-03 3805
8-Feb-03 2604
9-Feb-03 1606
10-Feb-03 1183
11-Feb-03 1183
12-Feb-03 773
13-Feb-03 773
14-Feb-03 1955
15-Feb-03 2071
16-Feb-03 2663
17-Feb-03 1958
18-Feb-03 1559
19-Feb-03 1972
20-Feb-03 1740
21-Feb-03 2284
22-Feb-03 2284
23-Feb-03 2475
24-Feb-03 1977
25-Feb-03 2474
26-Feb-03 1995
27-Feb-03 1122
28-Feb-03 806
1-Mar-03 806
2-Mar-03 1297
3-Mar-03 1205
4-Mar-03 2340
5-Mar-03 1986
6-Mar-03 1903
7-Mar-03 2379
8-Mar-03 1024
9-Mar-03 4166
10-Mar-03 4166
11-Mar-03 3068
12-Mar-03 2344
13-Mar-03 1548
14-Mar-03 1393
15-Mar-03 1059
16-Mar-03 1063
17-Mar-03 1063
18-Mar-03 1424
19-Mar-03 1479
20-Mar-03 1795
21-Mar-03 1677
22-Mar-03 1586
23-Mar-03 2102