1931 Lat. 31.9282 Afghanistan Helmand
River: Helmand Long. 64.7454
Site name: Shurakian Contributing area: 56832 km2 Ratio to Comparison Station: 0.54
Latest measurement: 8-Jan-10 Mean annual runoff: 360 mm (2003-2007)
Hydrologic status: 2 Normal flow Total runoff this year: 459 mm
Latest M/C ratio: 0.95 Seven day total: 1 mm
Estimated current discharge: 221 m3/sec Percent of mean 7-day total: 36.9 % (today's value compared to mean for same period, 2003-2007)
Ice-cover determination: 5 yr recurrence flood: 2466 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow, 2 = Normal flow, 3 = Flood, 4 = Major Flood 2402 m3/sec (from Gumbel Extreme Value analysis)
Comparison Station Information:  Niz. Pjandge (2917950)         Contributing Area:   sq mi 105353 sq km
(Data from this gaging station are used for the calibration to discharge, with an adjustment for different contributing areas)
Notes: Rating equation is based on comparison of monthly means from a station in the region
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
131 2002 no data no data no data no data no data no data no data 21.9 24.3 29.9 25.4 29.2
391 2003 26.1 30.5 35.7 46.0 32.6 31.9 29.9 32.1 26.0 31.1 34.4 34.7
420 2004 30.3 28.2 35.6 34.0 29.6 36.8 39.5 38.8 34.8 32.5 32.1 48.1
412 2005 70.2 52.8 31.5 39.6 32.2 29.8 29.1 29.6 30.0 23.2 18.4 25.6
235 2006 36.6 26.7 20.8 21.5 17.7 17.5 25.5 21.0 21.9 25.8 0.0 0.0
341 2007 21.5 17.9 32.5 65.4 32.9 24.2 23.4 26.0 20.8 26.0 25.3 24.8
459 2008 36.2 32.7 50.6 44.6 33.7 25.6 40.2 37.5 37.3 31.3 34.9 54.2
304 2009 34.4 26.2 28.4 21.4 25.7 22.4 22.2 29.3 27.0 23.2 24.5 19.0
Mean Annual Runoff: 376 Standard Deviation: 79
Trend in Annual Runoff (slope):  -2.27
Discharge is estimated directly via a rating equation from the remote sensing data (M/C ratio) shown below.
Explanation:   Green line records upwelling microwave emission from a land parcel (ca 10 km x 10 km) near the river; blue line from a parcel 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.
When data above show calibration site values lower than for the measurement site, discharge estimation may not be possible.
GoogleEarth View of Measurement Site
1932.jpg
Return
Date m3/sec
22-Jul-02 606
23-Jul-02 606
24-Jul-02 814
25-Jul-02 802
26-Jul-02 770
27-Jul-02 853
28-Jul-02 703
29-Jul-02 737
30-Jul-02 685
31-Jul-02 685
1-Aug-02
2-Aug-02
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 787
10-Aug-02 775
11-Aug-02 778
12-Aug-02 778
13-Aug-02 734
14-Aug-02 720
15-Aug-02 504
16-Aug-02 563
17-Aug-02 576
18-Aug-02 564
19-Aug-02 631
20-Aug-02 525
21-Aug-02 455
22-Aug-02 389
23-Aug-02 406
24-Aug-02 429
25-Aug-02 476
26-Aug-02 509
27-Aug-02 680
28-Aug-02 820
29-Aug-02 787
30-Aug-02 787
31-Aug-02 724
1-Sep-02 748
2-Sep-02 730
3-Sep-02 671
4-Sep-02 615
5-Sep-02 675
6-Sep-02 736
7-Sep-02 735
8-Sep-02 645
9-Sep-02 547
10-Sep-02 541
11-Sep-02 570
12-Sep-02 586
13-Sep-02 570
14-Sep-02 621
15-Sep-02 657
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 493
22-Sep-02 493
23-Sep-02 536
24-Sep-02 682
25-Sep-02 885
26-Sep-02 739
27-Sep-02 729
28-Sep-02 634
29-Sep-02 500
30-Sep-02 654
1-Oct-02 763
2-Oct-02 676
3-Oct-02 612
4-Oct-02 642
5-Oct-02 698
6-Oct-02 734
7-Oct-02 795
8-Oct-02 756
9-Oct-02 525
10-Oct-02 542
11-Oct-02 426
12-Oct-02 580
13-Oct-02 650
14-Oct-02 709
15-Oct-02 813
16-Oct-02 707
17-Oct-02 755
18-Oct-02 592
19-Oct-02 662
20-Oct-02 583
21-Oct-02 569
22-Oct-02 624
23-Oct-02 609
24-Oct-02 638
25-Oct-02 645
26-Oct-02 590
27-Oct-02 477
28-Oct-02 563
29-Oct-02 539
30-Oct-02 575
31-Oct-02 601
1-Nov-02 624
2-Nov-02 756
3-Nov-02 802
4-Nov-02 613
5-Nov-02 468
6-Nov-02 506
7-Nov-02 441
8-Nov-02 480
9-Nov-02 534
10-Nov-02 431
11-Nov-02 272
12-Nov-02 346
13-Nov-02 391
14-Nov-02 486
15-Nov-02 619
16-Nov-02 661
17-Nov-02 638
18-Nov-02 576
19-Nov-02 565
20-Nov-02 577
21-Nov-02 642
22-Nov-02 610
23-Nov-02 599
24-Nov-02 612
25-Nov-02 578
26-Nov-02 625
27-Nov-02 616
28-Nov-02 546
29-Nov-02 549
30-Nov-02 574
1-Dec-02 601
2-Dec-02 615
3-Dec-02 599
4-Dec-02 532
5-Dec-02 631
6-Dec-02 551
7-Dec-02 576
8-Dec-02 547
9-Dec-02 490
10-Dec-02 566
11-Dec-02 555
12-Dec-02 869
13-Dec-02 920
14-Dec-02 282
15-Dec-02 316
16-Dec-02 577
17-Dec-02 518
18-Dec-02 824
19-Dec-02 1087
20-Dec-02 549
21-Dec-02 742
22-Dec-02 742
23-Dec-02 461
24-Dec-02 385
25-Dec-02 291
26-Dec-02 409
27-Dec-02 483
28-Dec-02 919
29-Dec-02 925
30-Dec-02 893
31-Dec-02 737
1-Jan-03 623
2-Jan-03 652
3-Jan-03 565
4-Jan-03 568
5-Jan-03 568
6-Jan-03 526
7-Jan-03 546
8-Jan-03 614
9-Jan-03 606
10-Jan-03 607
11-Jan-03 614
12-Jan-03 596
13-Jan-03 568
14-Jan-03 575
15-Jan-03 576
16-Jan-03 610
17-Jan-03 655
18-Jan-03 777
19-Jan-03 824
20-Jan-03 611
21-Jan-03 552
22-Jan-03 231
23-Jan-03 222
24-Jan-03 222
25-Jan-03 222
26-Jan-03 222
27-Jan-03 257
28-Jan-03 279
29-Jan-03 980
30-Jan-03 824
31-Jan-03 867
1-Feb-03 885
2-Feb-03 943
3-Feb-03 1181
4-Feb-03 949
5-Feb-03 859
6-Feb-03 827
7-Feb-03 747
8-Feb-03 765
9-Feb-03 799
10-Feb-03 855
11-Feb-03 855
12-Feb-03 848
13-Feb-03 865
14-Feb-03 869
15-Feb-03 1162
16-Feb-03 403
17-Feb-03 792
18-Feb-03 880
19-Feb-03 426
20-Feb-03 656
21-Feb-03 618
22-Feb-03 535
23-Feb-03 779
24-Feb-03 472
25-Feb-03 271
26-Feb-03 282
27-Feb-03 239
28-Feb-03 300
1-Mar-03 391
2-Mar-03 657
3-Mar-03 457
4-Mar-03 911
5-Mar-03 851
6-Mar-03 728
7-Mar-03 771
8-Mar-03 615
9-Mar-03 607
10-Mar-03 739
11-Mar-03 774
12-Mar-03 814
13-Mar-03 875
14-Mar-03 782
15-Mar-03 772
16-Mar-03 741
17-Mar-03 661
18-Mar-03 808
19-Mar-03 818
20-Mar-03 634
21-Mar-03 591
22-Mar-03 1158
23-Mar-03 992
24-Mar-03 1128
25-Mar-03 1333
26-Mar-03 629
27-Mar-03 621
28-Mar-03 846
29-Mar-03 737
30-Mar-03 569
31-Mar-03 467
1-Apr-03 505
2-Apr-03 356
3-Apr-03 638
4-Apr-03 1552
5-Apr-03 1870
6-Apr-03 1570
7-Apr-03 1705
8-Apr-03 957
9-Apr-03 921
10-Apr-03 985
11-Apr-03 908
12-Apr-03 976
13-Apr-03 874
14-Apr-03 886
15-Apr-03 878
16-Apr-03 859
17-Apr-03 974
18-Apr-03 935
19-Apr-03 1098
20-Apr-03 1084
21-Apr-03 1129
22-Apr-03 991
23-Apr-03 558
24-Apr-03 884
25-Apr-03 846
26-Apr-03 901
27-Apr-03 1240
28-Apr-03 1109
29-Apr-03 1086
30-Apr-03 965
1-May-03 965
2-May-03 944
3-May-03 820
4-May-03 789
5-May-03 827
6-May-03 970
7-May-03 835
8-May-03 875
9-May-03 710
10-May-03 585
11-May-03 583
12-May-03 459
13-May-03 433
14-May-03 554
15-May-03 592
16-May-03 680
17-May-03 680
18-May-03 697
19-May-03 769
20-May-03 785
21-May-03 892
22-May-03 869
23-May-03 821
24-May-03 691
25-May-03 579
26-May-03 567
27-May-03 517
28-May-03 530
29-May-03 500
30-May-03 484
31-May-03 437
1-Jun-03 473
2-Jun-03 551
3-Jun-03 593
4-Jun-03 748
5-Jun-03 789
6-Jun-03 896
7-Jun-03 876
8-Jun-03 1003
9-Jun-03 901
10-Jun-03 870
11-Jun-03 692
12-Jun-03 659
13-Jun-03 661
14-Jun-03 631
15-Jun-03 554
16-Jun-03 513
17-Jun-03 692
18-Jun-03 724
19-Jun-03 783
20-Jun-03 1030
21-Jun-03
22-Jun-03 1296
23-Jun-03 892
24-Jun-03 769
25-Jun-03 659
26-Jun-03 568
27-Jun-03 507
28-Jun-03 489
29-Jun-03 594
30-Jun-03 547
1-Jul-03 827
2-Jul-03 806
3-Jul-03 790
4-Jul-03 775
5-Jul-03 723
6-Jul-03 606
7-Jul-03 574
8-Jul-03 388
9-Jul-03 307
10-Jul-03 351
11-Jul-03 436
12-Jul-03 561
13-Jul-03 570
14-Jul-03 558
15-Jul-03 597
16-Jul-03 591
17-Jul-03 789
18-Jul-03 618
19-Jul-03 603
20-Jul-03 591
21-Jul-03 508
22-Jul-03 785
23-Jul-03 838
24-Jul-03 866