Site ID: 59 Lat. 26.0021 India Bihar
River: Sapt Kosi Long. 86.4203
Site name: Supaul Contributing area: 66006 km2 Ratio to Comparison Station: 0.12
Latest measurement: 24-Jul-10 Mean annual runoff: 219 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 90.5 mm
Latest M/C ratio: 1.43 Seven day total: 7.6 mm
Estimated current discharge: 1350 m3/sec Percent of mean 7-day total: 120.8 % (today's value compared to mean for same period, 2003-2009)
Ice-cover determination: 5 yr recurrence flood: 2313 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 2608 m3/sec (from Gumbel Extreme Value analysis)
Comparison Station Information:  Pakse (2469260)           Contributing Area:   sq mi 536010 sq km
(Data from this gaging station are used for the calibration to discharge, with an adjustment for different contributing areas)
Notes: Calibration to nearby ground station 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
160 2002 no data no data no data no data no data no data no data 30.7 46.3 42.5 23.7 16.6
206 2003 14.7 16.0 21.5 19.6 7.4 21.5 12.3 14.1 30.3 24.0 11.8 12.7
146 2004 11.3 13.6 12.9 3.2 6.1 12.9 5.6 17.0 31.3 16.1 7.1 8.6
237 2005 7.3 9.4 18.3 16.9 5.4 20.2 33.3 29.9 23.7 32.4 25.3 14.8
156 2006 9.7 5.2 6.7 3.6 3.2 23.2 17.7 10.6 38.0 38.5 0.0 0.0
437 2007 8.8 9.3 11.5 8.7 9.9 19.9 43.1 47.1 92.7 113.3 53.7 18.6
139 2008 17.7 10.1 11.8 12.8 9.4 18.0 45.5 12.8 0.1 0.1 0.1 0.1
214 2009 0.1 0.2 4.3 1.8 6.5 11.8 18.5 29.5 60.7 43.1 23.2 14.0
90 2010 10.3 8.0 16.7 6.3 8.4 11.6 29.1 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 219 Standard Deviation: 6.4
Trend in Annual Runoff (slope):  5.9
Discharge is estimated via a rating equation directly from the remote sensing data (M/C ratio) shown below.
Explanation:   Green line records upwelling microwave emission from within 5 km radius of a calbration land target; blue line is emission from within 5 km radious of the measurement target centered over the river.
Brown line is their ratio (M/C; 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. For calibration status, see "notes" entry, above.
GoogleEarth View of Measurement Site
Return
Estimated
Disharge
Data
Date m3/sec
22-Jul-02 3
23-Jul-02 3
24-Jul-02 3
25-Jul-02 3
26-Jul-02 455
27-Jul-02 1159
28-Jul-02 1912
29-Jul-02 1912
30-Jul-02 1886
31-Jul-02 1886
1-Aug-02 1239
2-Aug-02 1239
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 1542
10-Aug-02 1542
11-Aug-02 1490
12-Aug-02 1490
13-Aug-02 696
14-Aug-02 696
15-Aug-02 320
16-Aug-02 440
17-Aug-02 549
18-Aug-02 420
19-Aug-02 376
20-Aug-02 182
21-Aug-02 74
22-Aug-02 464
23-Aug-02 1054
24-Aug-02 1293
25-Aug-02 1486
26-Aug-02 1711
27-Aug-02 1102
28-Aug-02 1326
29-Aug-02 659
30-Aug-02 659
31-Aug-02 1397
1-Sep-02 1575
2-Sep-02 1438
3-Sep-02 1440
4-Sep-02 1191
5-Sep-02 856
6-Sep-02 1169
7-Sep-02 1112
8-Sep-02 1581
9-Sep-02 2102
10-Sep-02 2170
11-Sep-02 2502
12-Sep-02 2022
13-Sep-02 1841
14-Sep-02 1331
15-Sep-02 1331
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 1515
22-Sep-02 1515
23-Sep-02 1444
24-Sep-02 1382
25-Sep-02 1294
26-Sep-02 1172
27-Sep-02 1106
28-Sep-02 868
29-Sep-02 705
30-Sep-02 732
1-Oct-02 732
2-Oct-02 1243
3-Oct-02 1526
4-Oct-02 1500
5-Oct-02 1623
6-Oct-02 1643
7-Oct-02 1561
8-Oct-02 1949
9-Oct-02 1479
10-Oct-02 1389
11-Oct-02 1016
12-Oct-02 1037
13-Oct-02 1014
14-Oct-02 856
15-Oct-02 919
16-Oct-02 810
17-Oct-02 810
18-Oct-02 563
19-Oct-02 745
20-Oct-02 452
21-Oct-02 563
22-Oct-02 666
23-Oct-02 675
24-Oct-02 1021
25-Oct-02 886
26-Oct-02 1036
27-Oct-02 1040
28-Oct-02 980
29-Oct-02 1096
30-Oct-02 890
31-Oct-02 761
1-Nov-02 1030
2-Nov-02 1030
3-Nov-02 786
4-Nov-02 772
5-Nov-02 408
6-Nov-02 397
7-Nov-02 446
8-Nov-02 584
9-Nov-02 764
10-Nov-02 692
11-Nov-02 701
12-Nov-02 499
13-Nov-02 498
14-Nov-02 586
15-Nov-02 668
16-Nov-02 729
17-Nov-02 955
18-Nov-02 955
19-Nov-02 800
20-Nov-02 758
21-Nov-02 562
22-Nov-02 484
23-Nov-02 436
24-Nov-02 350
25-Nov-02 337
26-Nov-02 415
27-Nov-02 497
28-Nov-02 324
29-Nov-02 340
30-Nov-02 316
1-Dec-02 256
2-Dec-02 428
3-Dec-02 614
4-Dec-02 614
5-Dec-02 591
6-Dec-02 537
7-Dec-02 283
8-Dec-02 307
9-Dec-02 272
10-Dec-02 210
11-Dec-02 311
12-Dec-02 486
13-Dec-02 501
14-Dec-02 628
15-Dec-02 600
16-Dec-02 552
17-Dec-02 445
18-Dec-02 366
19-Dec-02 455
20-Dec-02 455
21-Dec-02 598
22-Dec-02 553
23-Dec-02 269
24-Dec-02 342
25-Dec-02 300
26-Dec-02 295
27-Dec-02 506
28-Dec-02 232
29-Dec-02 263
30-Dec-02 170
31-Dec-02 264
1-Jan-03 345
2-Jan-03 427
3-Jan-03 558
4-Jan-03 544
5-Jan-03 544
6-Jan-03 497
7-Jan-03 445
8-Jan-03 324
9-Jan-03 352
10-Jan-03 314
11-Jan-03 343
12-Jan-03 427
13-Jan-03 381
14-Jan-03 368
15-Jan-03 350
16-Jan-03 385
17-Jan-03 402
18-Jan-03 395
19-Jan-03 406
20-Jan-03 436
21-Jan-03 436
22-Jan-03 405
23-Jan-03 365
24-Jan-03 249
25-Jan-03 247
26-Jan-03 243
27-Jan-03 224
28-Jan-03 236
29-Jan-03 174
30-Jan-03 220
31-Jan-03 207
1-Feb-03 268
2-Feb-03 317
3-Feb-03 388
4-Feb-03 497
5-Feb-03 652
6-Feb-03 652
7-Feb-03 791
8-Feb-03 585
9-Feb-03 380
10-Feb-03 436
11-Feb-03 436
12-Feb-03 455
13-Feb-03 501
14-Feb-03 522
15-Feb-03 518
16-Feb-03 487
17-Feb-03 438
18-Feb-03 385
19-Feb-03 279
20-Feb-03 241
21-Feb-03 451
22-Feb-03 451
23-Feb-03 392
24-Feb-03 469
25-Feb-03 273
26-Feb-03 317
27-Feb-03 393
28-Feb-03 255
1-Mar-03 339
2-Mar-03 467
3-Mar-03 494
4-Mar-03 502
5-Mar-03 581
6-Mar-03 531
7-Mar-03 521
8-Mar-03 809
9-Mar-03 736
10-Mar-03 736
11-Mar-03 454
12-Mar-03 524
13-Mar-03 369
14-Mar-03 444
15-Mar-03 538
16-Mar-03 546
17-Mar-03 683
18-Mar-03 831
19-Mar-03 723
20-Mar-03 542
21-Mar-03 532
22-Mar-03 380
23-Mar-03 385
24-Mar-03 553
25-Mar-03