Site ID: 58 Lat. 24.9313 India West Bengal
River: Ganges Long. 87.9395
Site name: Rajmahal Contributing area: 919441 km2 Ratio to Comparison Station: 1.72
Latest measurement: 24-Jul-10 Mean annual runoff: 58 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 39.8 mm
Latest M/C ratio: 1.38 Seven day total: 0.7 mm
Estimated current discharge: 1112 m3/sec Percent of mean 7-day total: 174.7 % (today's value compared to mean for same period, 2003-2009)
Ice-cover determination: 5 yr recurrence flood: 5321 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 5148 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
16 2002 no data no data no data no data no data no data no data 1.0 2.8 4.8 3.7 3.5
35 2003 3.1 3.3 3.8 3.7 2.0 2.6 1.1 0.8 5.4 4.6 2.4 1.9
25 2004 2.8 3.0 3.4 3.2 3.0 1.2 0.2 0.6 1.4 2.9 2.1 1.7
54 2005 1.5 1.8 4.1 6.4 5.6 4.1 1.7 3.6 6.3 7.1 5.9 5.5
52 2006 5.1 4.9 6.2 6.1 6.3 4.0 2.2 2.8 7.1 7.6 0.0 0.0
78 2007 5.8 5.7 6.4 6.0 6.0 4.5 2.2 7.5 10.7 10.7 7.7 5.1
84 2008 5.9 6.8 6.8 6.7 6.8 4.2 2.3 8.9 11.8 9.9 7.5 6.7
77 2009 7.2 7.1 7.2 7.5 6.1 6.8 4.0 3.1 6.3 8.5 6.8 6.6
40 2010 6.4 6.5 6.4 6.6 6.2 5.1 2.7 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 58 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-02 287
31-Jul-02 287
1-Aug-02 290
2-Aug-02 290
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 392
10-Aug-02 3
11-Aug-02 81
12-Aug-02 81
13-Aug-02 3
14-Aug-02 3
15-Aug-02 3
16-Aug-02 166
17-Aug-02 221
18-Aug-02 420
19-Aug-02 421
20-Aug-02 31
21-Aug-02 346
22-Aug-02 3
23-Aug-02 3
24-Aug-02 200
25-Aug-02 455
26-Aug-02 598
27-Aug-02 983
28-Aug-02 1252
29-Aug-02 1435
30-Aug-02 1914
31-Aug-02 1026
1-Sep-02 1152
2-Sep-02 1020
3-Sep-02 941
4-Sep-02 1078
5-Sep-02 1242
6-Sep-02 1298
7-Sep-02 1546
8-Sep-02 1546
9-Sep-02 1161
10-Sep-02 1281
11-Sep-02 1269
12-Sep-02 1148
13-Sep-02 1137
14-Sep-02 938
15-Sep-02 796
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 1880
22-Sep-02 1880
23-Sep-02 1236
24-Sep-02 1236
25-Sep-02 596
26-Sep-02 848
27-Sep-02 665
28-Sep-02 982
29-Sep-02 1108
30-Sep-02 1629
1-Oct-02 2741
2-Oct-02 3119
3-Oct-02 2753
4-Oct-02 2183
5-Oct-02 2019
6-Oct-02 1753
7-Oct-02 1436
8-Oct-02 1342
9-Oct-02 914
10-Oct-02 914
11-Oct-02 1416
12-Oct-02 1599
13-Oct-02 1819
14-Oct-02 1765
15-Oct-02 1614
16-Oct-02 1656
17-Oct-02 1852
18-Oct-02 961
19-Oct-02 1092
20-Oct-02 945
21-Oct-02 1107
22-Oct-02 1514
23-Oct-02 1957
24-Oct-02 2143
25-Oct-02 1649
26-Oct-02 1649
27-Oct-02 1460
28-Oct-02 1467
29-Oct-02 1520
30-Oct-02 1703
31-Oct-02 1518
1-Nov-02 1838
2-Nov-02 2397
3-Nov-02 1700
4-Nov-02 1833
5-Nov-02 1273
6-Nov-02 1141
7-Nov-02 1196
8-Nov-02 782
9-Nov-02 777
10-Nov-02 1523
11-Nov-02 1523
12-Nov-02 1291
13-Nov-02 1314
14-Nov-02 907
15-Nov-02 816
16-Nov-02 962
17-Nov-02 1319
18-Nov-02 1471
19-Nov-02 2212
20-Nov-02 1839
21-Nov-02 1397
22-Nov-02 1243
23-Nov-02 1035
24-Nov-02 1207
25-Nov-02 1231
26-Nov-02 991
27-Nov-02 991
28-Nov-02 909
29-Nov-02 1231
30-Nov-02 1217
1-Dec-02 1217
2-Dec-02 1121
3-Dec-02 1287
4-Dec-02 1799
5-Dec-02 1606
6-Dec-02 1440
7-Dec-02 812
8-Dec-02 897
9-Dec-02 910
10-Dec-02 849
11-Dec-02 1043
12-Dec-02 934
13-Dec-02 934
14-Dec-02 751
15-Dec-02 990
16-Dec-02 763
17-Dec-02 835
18-Dec-02 926
19-Dec-02 1024
20-Dec-02 1434
21-Dec-02 1567
22-Dec-02 1471
23-Dec-02 1033
24-Dec-02 1173
25-Dec-02 1130
26-Dec-02 1289
27-Dec-02 1688
28-Dec-02 1939
29-Dec-02 1939
30-Dec-02 1386
31-Dec-02 1308
1-Jan-03 947
2-Jan-03 753
3-Jan-03 769
4-Jan-03 377
5-Jan-03 377
6-Jan-03 321
7-Jan-03 448
8-Jan-03 458
9-Jan-03 577
10-Jan-03 685
11-Jan-03 1063
12-Jan-03 1406
13-Jan-03 2131
14-Jan-03 2131
15-Jan-03 1758
16-Jan-03 1532
17-Jan-03 1091
18-Jan-03 1239
19-Jan-03 1244
20-Jan-03 999
21-Jan-03 1020
22-Jan-03 643
23-Jan-03 841
24-Jan-03 871
25-Jan-03 1020
26-Jan-03 1067
27-Jan-03 1218
28-Jan-03 1624
29-Jan-03 1390
30-Jan-03 1390
31-Jan-03 1170
1-Feb-03 1196
2-Feb-03 1092
3-Feb-03 1123
4-Feb-03 1061
5-Feb-03 917
6-Feb-03 1007
7-Feb-03 793
8-Feb-03 1286
9-Feb-03 1659
10-Feb-03 1573
11-Feb-03 1573
12-Feb-03 1320
13-Feb-03 1226
14-Feb-03 1315
15-Feb-03 1315
16-Feb-03 1442
17-Feb-03 1375
18-Feb-03 1095
19-Feb-03 1105
20-Feb-03 1028
21-Feb-03 1200
22-Feb-03 1453
23-Feb-03 1278
24-Feb-03 1407
25-Feb-03 1084
26-Feb-03 1177
27-Feb-03 1298
28-Feb-03 1242
1-Mar-03 1501
2-Mar-03 1412
3-Mar-03 1412
4-Mar-03 1127
5-Mar-03 1319
6-Mar-03 1081
7-Mar-03 1081
8-Mar-03 1131