Site ID: 203 Lat. 25.5412 India Bihar
River: Ganges Long. 85.4551
Site name: Patna Contributing area: 766782 km2 Ratio to Comparison Station: 1.43
Latest measurement: 29-Jul-10 Mean annual runoff: 29 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 9.2 mm
Latest M/C ratio: 1.15 Seven day total: 0.2 mm
Estimated current discharge: 179 m3/sec Percent of mean 7-day total: 184.6 % (today's value compared to mean for same period, 2003-2009)
Ice-cover determination: 5 yr recurrence flood: 4399 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 4414 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
9 2002 no data no data no data no data no data no data no data 0.0 1.1 3.5 2.7 1.3
44 2003 0.9 1.1 2.1 2.1 2.3 0.9 1.7 0.4 10.7 13.3 5.3 3.2
30 2004 2.3 2.4 2.4 2.3 2.6 1.7 2.0 3.0 2.5 3.6 3.2 2.4
22 2005 2.2 1.7 1.4 1.5 1.6 0.9 1.6 0.5 1.9 5.2 1.9 1.4
18 2006 1.3 1.0 1.6 1.5 1.9 0.8 0.6 0.2 5.0 3.9 0.0 0.0
27 2007 0.8 0.8 2.2 1.8 0.5 1.0 0.6 0.3 6.2 7.9 3.4 1.3
39 2008 1.0 0.6 1.3 1.9 1.8 1.4 0.5 3.8 12.1 10.0 2.9 1.5
20 2009 1.2 1.4 1.6 1.9 0.8 1.1 2.1 1.0 1.5 3.2 2.8 1.8
9 2010 0.7 1.2 1.8 2.0 1.3 1.3 0.7 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 29 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 3
27-Jul-02 3
28-Jul-02 3
29-Jul-02 3
30-Jul-02 3
31-Jul-02 3
1-Aug-02 3
2-Aug-02 3
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 3
10-Aug-02 3
11-Aug-02 3
12-Aug-02 3
13-Aug-02 3
14-Aug-02 3
15-Aug-02 3
16-Aug-02 3
17-Aug-02 3
18-Aug-02 3
19-Aug-02 3
20-Aug-02 3
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 3
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-02 174
8-Sep-02 276
9-Sep-02 445
10-Sep-02 299
11-Sep-02 289
12-Sep-02 222
13-Sep-02 92
14-Sep-02 297
15-Sep-02 297
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 517
22-Sep-02 517
23-Sep-02 735
24-Sep-02 905
25-Sep-02 965
26-Sep-02 772
27-Sep-02 707
28-Sep-02 701
29-Sep-02 719
30-Sep-02 1097
1-Oct-02 1058
2-Oct-02 1068
3-Oct-02 1099
4-Oct-02 1141
5-Oct-02 1277
6-Oct-02 1179
7-Oct-02 1154
8-Oct-02 1154
9-Oct-02 967
10-Oct-02 1083
11-Oct-02 1042
12-Oct-02 1076
13-Oct-02 1165
14-Oct-02 667
15-Oct-02 514
16-Oct-02 427
17-Oct-02 545
18-Oct-02 1037
19-Oct-02 974
20-Oct-02 1017
21-Oct-02 933
22-Oct-02 875
23-Oct-02 938
24-Oct-02 938
25-Oct-02 1029
26-Oct-02 1091
27-Oct-02 1160
28-Oct-02 1051
29-Oct-02 1042
30-Oct-02 1010
31-Oct-02 922
1-Nov-02 1154
2-Nov-02 1080
3-Nov-02 965
4-Nov-02 925
5-Nov-02 832
6-Nov-02 838
7-Nov-02 861
8-Nov-02 1101
9-Nov-02 1101
10-Nov-02 1086
11-Nov-02 1085
12-Nov-02 842
13-Nov-02 859
14-Nov-02 845
15-Nov-02 783
16-Nov-02 893
17-Nov-02 794
18-Nov-02 812
19-Nov-02 758
20-Nov-02 662
21-Nov-02 649
22-Nov-02 452
23-Nov-02 332
24-Nov-02 468
25-Nov-02 468
26-Nov-02 611
27-Nov-02 611
28-Nov-02 590
29-Nov-02 605
30-Nov-02 628
1-Dec-02 521
2-Dec-02 472
3-Dec-02 356
4-Dec-02 398
5-Dec-02 417
6-Dec-02 420
7-Dec-02 428
8-Dec-02 345
9-Dec-02 334
10-Dec-02 358
11-Dec-02 358
12-Dec-02 453
13-Dec-02 397
14-Dec-02 341
15-Dec-02 272
16-Dec-02 229
17-Dec-02 292
18-Dec-02 272
19-Dec-02 505
20-Dec-02 487
21-Dec-02 434
22-Dec-02 334
23-Dec-02 277
24-Dec-02 210
25-Dec-02 186
26-Dec-02 381
27-Dec-02 381
28-Dec-02 477
29-Dec-02 371
30-Dec-02 286
31-Dec-02 293
1-Jan-03 238
2-Jan-03 324
3-Jan-03 369
4-Jan-03 529
5-Jan-03 424
6-Jan-03 373
7-Jan-03 364
8-Jan-03 284
9-Jan-03 284
10-Jan-03 329
11-Jan-03 276
12-Jan-03 276
13-Jan-03 251
14-Jan-03 247
15-Jan-03 241
16-Jan-03 261
17-Jan-03 254
18-Jan-03 234
19-Jan-03 249
20-Jan-03 163
21-Jan-03 149
22-Jan-03 98
23-Jan-03 53
24-Jan-03 18
25-Jan-03 59
26-Jan-03 75
27-Jan-03 287
28-Jan-03 287
29-Jan-03 243
30-Jan-03 202
31-Jan-03 228
1-Feb-03 172
2-Feb-03 188
3-Feb-03 360
4-Feb-03 316
5-Feb-03 638
6-Feb-03 576
7-Feb-03 566
8-Feb-03 534
9-Feb-03 470
10-Feb-03 501
11-Feb-03 501
12-Feb-03 354
13-Feb-03 354
14-Feb-03 178
15-Feb-03 159
16-Feb-03 240
17-Feb-03 299
18-Feb-03 351
19-Feb-03 119
20-Feb-03 3
21-Feb-03 5
22-Feb-03 98
23-Feb-03 455
24-Feb-03 428
25-Feb-03 376
26-Feb-03 409
27-Feb-03 398
28-Feb-03 349
1-Mar-03 349
2-Mar-03 409
3-Mar-03 389
4-Mar-03 482
5-Mar-03 449
6-Mar-03 414
7-Mar-03 447
8-Mar-03 359
9-Mar-03 437
10-Mar-03 376
11-Mar-03 475
12-Mar-03 508
13-Mar-03 608
14-Mar-03 499
15-Mar-03 540
16-Mar-03 488
17-Mar-03 488
18-Mar-03 277
19-Mar-03 366
20-Mar-03 425
21-Mar-03 760
22-Mar-03 959
23-Mar-03 885
24-Mar-03 1063