Site ID: 200 Lat. 24.5823 India West Bengal
River: Ganges Long. 88.1018
Site name: Dhalian Contributing area: 923954 km2 Ratio to Comparison Station: 1.72
Latest measurement: 30-Jul-10 Mean annual runoff: 44 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 15.8 mm
Latest M/C ratio: 1.23 Seven day total: 0.2 mm
Estimated current discharge: 488 m3/sec Percent of mean 7-day total: 240.9 % (today's value compared to mean for same period, 2003-2009)
Ice-cover determination: 5 yr recurrence flood: 7656 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 7543 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
24 2002 no data no data no data no data no data no data no data 2.5 6.3 9.2 3.8 2.4
54 2003 1.9 2.7 2.7 2.1 2.2 2.0 0.4 2.9 15.6 13.5 4.9 3.0
38 2004 3.0 3.1 3.0 2.9 3.2 2.0 0.3 2.5 5.3 7.2 3.1 2.0
41 2005 1.4 2.1 2.5 2.0 2.9 2.4 0.9 2.5 9.9 8.3 3.5 2.4
32 2006 1.9 2.5 2.1 1.4 2.6 1.3 0.6 2.0 9.3 8.4 0.0 0.0
48 2007 1.9 2.8 2.4 1.6 2.4 2.0 0.3 3.5 10.4 12.0 5.7 2.5
56 2008 2.6 4.3 2.9 2.8 2.8 1.7 0.3 6.8 13.3 10.5 4.4 3.2
39 2009 2.7 4.3 2.8 2.6 1.7 3.0 1.4 1.0 3.9 7.7 4.7 2.8
16 2010 2.2 2.9 2.6 2.9 2.8 2.0 0.4 0.1 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 44 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 1307
10-Aug-02 1312
11-Aug-02 917
12-Aug-02 917
13-Aug-02 232
14-Aug-02 3
15-Aug-02 3
16-Aug-02 3
17-Aug-02 171
18-Aug-02 363
19-Aug-02 641
20-Aug-02 1053
21-Aug-02 1605
22-Aug-02 1566
23-Aug-02 1566
24-Aug-02 843
25-Aug-02 1381
26-Aug-02 1593
27-Aug-02 1890
28-Aug-02 2354
29-Aug-02 2252
30-Aug-02 2641
31-Aug-02 2182
1-Sep-02 2687
2-Sep-02 2705
3-Sep-02 2854
4-Sep-02 3158
5-Sep-02 2819
6-Sep-02 3036
7-Sep-02 2339
8-Sep-02 2339
9-Sep-02 2529
10-Sep-02 2797
11-Sep-02 2856
12-Sep-02 2573
13-Sep-02 2375
14-Sep-02 1923
15-Sep-02 1777
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 3667
22-Sep-02 3667
23-Sep-02 3359
24-Sep-02 3359
25-Sep-02 1375
26-Sep-02 2069
27-Sep-02 2105
28-Sep-02 2342
29-Sep-02 3316
30-Sep-02 3460
1-Oct-02 3692
2-Oct-02 4120
3-Oct-02 4379
4-Oct-02 4129
5-Oct-02 4325
6-Oct-02 4417
7-Oct-02 4152
8-Oct-02 4519
9-Oct-02 3487
10-Oct-02 3487
11-Oct-02 2908
12-Oct-02 3191
13-Oct-02 3356
14-Oct-02 3558
15-Oct-02 3784
16-Oct-02 3766
17-Oct-02 3950
18-Oct-02 923
19-Oct-02 1300
20-Oct-02 997
21-Oct-02 1535
22-Oct-02 2679
23-Oct-02 3086
24-Oct-02 3484
25-Oct-02 2978
26-Oct-02 2978
27-Oct-02 2537
28-Oct-02 2675
29-Oct-02 2539
30-Oct-02 2635
31-Oct-02 2661
1-Nov-02 2504
2-Nov-02 2697
3-Nov-02 1911
4-Nov-02 1996
5-Nov-02 1784
6-Nov-02 1883
7-Nov-02 2053
8-Nov-02 1804
9-Nov-02 1806
10-Nov-02 1558
11-Nov-02 1558
12-Nov-02 1139
13-Nov-02 1004
14-Nov-02 770
15-Nov-02 738
16-Nov-02 776
17-Nov-02 986
18-Nov-02 1024
19-Nov-02 1054
20-Nov-02 1061
21-Nov-02 838
22-Nov-02 963
23-Nov-02 1048
24-Nov-02 1093
25-Nov-02 1288
26-Nov-02 1216
27-Nov-02 1216
28-Nov-02 1158
29-Nov-02 1161
30-Nov-02 937
1-Dec-02 941
2-Dec-02 890
3-Dec-02 919
4-Dec-02 1095
5-Dec-02 1006
6-Dec-02 945
7-Dec-02 823
8-Dec-02 873
9-Dec-02 903
10-Dec-02 925
11-Dec-02 957
12-Dec-02 904
13-Dec-02 904
14-Dec-02 821
15-Dec-02 864
16-Dec-02 682
17-Dec-02 752
18-Dec-02 761
19-Dec-02 777
20-Dec-02 985
21-Dec-02 813
22-Dec-02 874
23-Dec-02 703
24-Dec-02 702
25-Dec-02 727
26-Dec-02 696
27-Dec-02 796
28-Dec-02 861
29-Dec-02 861
30-Dec-02 717
31-Dec-02 690
1-Jan-03 624
2-Jan-03 632
3-Jan-03 644
4-Jan-03 536
5-Jan-03 536
6-Jan-03 533
7-Jan-03 593
8-Jan-03 579
9-Jan-03 674
10-Jan-03 686
11-Jan-03 716
12-Jan-03 883
13-Jan-03 806
14-Jan-03 806
15-Jan-03 682
16-Jan-03 663
17-Jan-03 514
18-Jan-03 620
19-Jan-03 640
20-Jan-03 739
21-Jan-03 943
22-Jan-03 719
23-Jan-03 665
24-Jan-03 505
25-Jan-03 568
26-Jan-03 582
27-Jan-03 677
28-Jan-03 816
29-Jan-03 761
30-Jan-03 761
31-Jan-03 666
1-Feb-03 642
2-Feb-03 712
3-Feb-03 809
4-Feb-03 856
5-Feb-03 1025
6-Feb-03 1110
7-Feb-03 1122
8-Feb-03 1051
9-Feb-03 710
10-Feb-03 882
11-Feb-03 882
12-Feb-03 982
13-Feb-03 1268
14-Feb-03 1116
15-Feb-03 1116
16-Feb-03 734
17-Feb-03 885
18-Feb-03 857
19-Feb-03 902
20-Feb-03 1047
21-Feb-03 1101
22-Feb-03 1221
23-Feb-03 1365
24-Feb-03 1427
25-Feb-03 1215
26-Feb-03 1196
27-Feb-03 1144
28-Feb-03 1089
1-Mar-03 1262
2-Mar-03 1351
3-Mar-03 1351
4-Mar-03 1201
5-Mar-03 1167
6-Mar-03 944
7-Mar-03 944
8-Mar-03 873
9-Mar-03 918