Site ID: 518 Lat. 37.8967 USA Kentucky
River: Ohio Long. -87.6038
Site name: Henderson Contributing area: 271275 km2 Ratio to Comparison Station: 9.61
Latest measurement: 18-Jul-10 Mean annual runoff: 92 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 53.0 mm
Latest M/C ratio: 1.31 Seven day total: 1.9 mm
Estimated current discharge: 817 m3/sec Percent of mean 7-day total: 143.1 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 2998 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 2918 m3/sec (from Gumbel Extreme Value analysis)
Comparison Station Information:  Boluo (2186950)           Contributing Area:   sq mi 28239 sq km
(Data from this gaging station are used for the calibration to discharge, with an adjustment for different contributing areas)
Notes: Final calibration to discharge 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
25 2002 no data no data no data no data no data no data no data 5.6 5.5 5.0 4.6 4.2
78 2003 3.5 3.6 12.8 9.8 11.6 8.7 7.3 5.1 3.8 3.8 4.2 3.9
83 2004 8.6 5.8 8.0 8.3 8.6 14.1 8.3 4.3 5.9 5.1 3.8 2.0
85 2005 9.8 4.4 6.7 15.7 6.8 5.7 0.6 7.5 7.2 5.8 7.8 7.4
81 2006 8.6 7.3 10.5 10.4 9.5 7.1 7.4 7.4 6.6 6.5 0.0 0.0
107 2007 10.8 6.8 15.1 10.7 8.1 6.4 6.7 9.6 6.8 7.7 7.5 10.6
119 2008 8.5 9.6 20.1 22.3 12.7 9.5 7.0 5.9 6.8 5.8 5.3 5.5
88 2009 4.7 7.2 8.3 9.0 14.6 7.6 6.3 6.7 5.8 5.3 6.3 5.9
53 2010 5.7 4.4 9.2 8.8 12.3 7.6 5.2 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 92 Standard Deviation: 6.4
Trend in Annual Runoff (slope):  -73
Discharge is estimated via a rating equation directly from the remote sensing data (M/C ratio) shown below.
Green line records upwelling microwave emission from within 5 km radius of a calbration land target. 
Explanation:   Blue line is emission from within 5 km radius of the measurement target centered over the river.
Brown line is their ratio (M/C; "HR" in Brakenridge et al 2007; 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 using available ground-based discharge information.
GoogleEarth View of Measurement Site
Return
Estimated
Disharge
Data
Date m3/sec
22-Jul-02 679
23-Jul-02 679
24-Jul-02 632
25-Jul-02 773
26-Jul-02 773
27-Jul-02 831
28-Jul-02 797
29-Jul-02 809
30-Jul-02 842
31-Jul-02 860
1-Aug-02 927
2-Aug-02 942
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02
10-Aug-02 799
11-Aug-02 799
12-Aug-02 787
13-Aug-02 746
14-Aug-02 625
15-Aug-02 606
16-Aug-02 614
17-Aug-02 535
18-Aug-02 565
19-Aug-02 595
20-Aug-02 640
21-Aug-02 859
22-Aug-02 848
23-Aug-02 853
24-Aug-02 776
25-Aug-02 708
26-Aug-02 755
27-Aug-02 800
28-Aug-02 809
29-Aug-02 752
30-Aug-02 640
31-Aug-02 669
1-Sep-02 678
2-Sep-02 697
3-Sep-02 728
4-Sep-02 750
5-Sep-02 743
6-Sep-02 688
7-Sep-02 718
8-Sep-02 753
9-Sep-02 751
10-Sep-02 818
11-Sep-02 771
12-Sep-02 672
13-Sep-02 788
14-Sep-02 788
15-Sep-02 904
16-Sep-02 904
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 838
22-Sep-02 555
23-Sep-02 479
24-Sep-02 488
25-Sep-02 436
26-Sep-02 471
27-Sep-02 400
28-Sep-02 340
29-Sep-02 465
30-Sep-02 511
1-Oct-02 655
2-Oct-02 681
3-Oct-02 593
4-Oct-02 518
5-Oct-02 512
6-Oct-02 620
7-Oct-02 991
8-Oct-02 899
9-Oct-02 773
10-Oct-02 670
11-Oct-02 349
12-Oct-02 279
13-Oct-02 248
14-Oct-02 98
15-Oct-02 459
16-Oct-02 516
17-Oct-02 511
18-Oct-02 502
19-Oct-02 432
20-Oct-02 390
21-Oct-02 349
22-Oct-02 442
23-Oct-02 824
24-Oct-02 580
25-Oct-02 630
26-Oct-02 583
27-Oct-02 415
28-Oct-02 517
29-Oct-02 254
30-Oct-02 150
31-Oct-02 215
1-Nov-02 303
2-Nov-02 409
3-Nov-02 346
4-Nov-02 216
5-Nov-02 288
6-Nov-02 287
7-Nov-02 261
8-Nov-02 650
9-Nov-02 501
10-Nov-02 624
11-Nov-02 834
12-Nov-02 706
13-Nov-02 789
14-Nov-02 566
15-Nov-02 521
16-Nov-02 435
17-Nov-02 442
18-Nov-02 516
19-Nov-02 520
20-Nov-02 455
21-Nov-02 520
22-Nov-02 593
23-Nov-02 577
24-Nov-02 639
25-Nov-02 692
26-Nov-02 654
27-Nov-02 547
28-Nov-02 302
29-Nov-02 143
30-Nov-02 38
1-Dec-02 24
2-Dec-02 410
3-Dec-02 457
4-Dec-02 537
5-Dec-02 456
6-Dec-02 268
7-Dec-02 100
8-Dec-02 35
9-Dec-02 3
10-Dec-02 3
11-Dec-02 82
12-Dec-02 3
13-Dec-02 123
14-Dec-02 29
15-Dec-02 3
16-Dec-02 101
17-Dec-02 9
18-Dec-02 273
19-Dec-02 438
20-Dec-02 509
21-Dec-02 539
22-Dec-02 509
23-Dec-02 598
24-Dec-02 827
25-Dec-02 725
26-Dec-02 865
27-Dec-02 891
28-Dec-02 898
29-Dec-02 1059
30-Dec-02 1222
31-Dec-02 1174
1-Jan-03 830
2-Jan-03 665
3-Jan-03 326
4-Jan-03 401
5-Jan-03 382
6-Jan-03 490
7-Jan-03 559
8-Jan-03 489
9-Jan-03 635
10-Jan-03 732
11-Jan-03 560
12-Jan-03 608
13-Jan-03 386
14-Jan-03 134
15-Jan-03 100
16-Jan-03 29
17-Jan-03 68
18-Jan-03 42
19-Jan-03 235
20-Jan-03 271
21-Jan-03 375
22-Jan-03 295
23-Jan-03 231
24-Jan-03 260
25-Jan-03 223
26-Jan-03 264
27-Jan-03 260
28-Jan-03 178
29-Jan-03 241
30-Jan-03 343
31-Jan-03 340
1-Feb-03 349
2-Feb-03 260
3-Feb-03 212
4-Feb-03 534
5-Feb-03 517
6-Feb-03 504
7-Feb-03 390
8-Feb-03 265
9-Feb-03 102
10-Feb-03 112
11-Feb-03 123
12-Feb-03 19
13-Feb-03 311
14-Feb-03 336
15-Feb-03 300
16-Feb-03 184
17-Feb-03 172
18-Feb-03 73
19-Feb-03 117
20-Feb-03 120
21-Feb-03 254
22-Feb-03 556
23-Feb-03 510
24-Feb-03 852
25-Feb-03 898
26-Feb-03 836
27-Feb-03 1079
28-Feb-03 1374
1-Mar-03 1532
2-Mar-03 1522
3-Mar-03 1713
4-Mar-03 1252