Site ID: 512 Lat. 35.7933 USA Arkansas
River: Mississippi Long. -89.7501
Site name: Blytheville Contributing area: 2372401 km2 Ratio to Comparison Station: 84.01
Latest measurement: 18-Jul-10 Mean annual runoff: 12 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 10.4 mm
Latest M/C ratio: 1.38 Seven day total: 0.3 mm
Estimated current discharge: 1134 m3/sec Percent of mean 7-day total: 158.9 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 4680 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 4600 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
2 2002 no data no data no data no data no data no data no data 0.3 0.5 0.6 0.3 0.3
9 2003 0.4 0.5 1.3 0.7 1.9 1.4 0.9 0.6 0.5 0.3 0.4 0.4
6 2004 0.3 0.3 0.5 0.3 0.6 1.0 0.7 0.6 0.7 0.2 0.3 0.6
11 2005 1.1 0.5 0.7 1.6 1.0 1.1 0.1 0.9 0.9 0.6 0.9 1.0
10 2006 0.8 0.8 1.2 1.1 1.3 1.0 1.2 0.9 1.0 0.8 0.0 0.0
12 2007 1.1 0.7 1.1 1.2 1.1 1.0 1.1 1.2 0.9 0.7 0.7 0.9
16 2008 0.8 1.1 2.2 3.3 2.3 1.4 1.2 1.1 1.1 0.6 0.5 0.8
17 2009 1.1 1.1 1.3 1.6 3.8 2.0 1.1 1.1 0.8 0.8 1.1 1.1
10 2010 0.7 1.0 1.3 1.5 3.2 1.8 0.8 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 12 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-02 217
23-Jul-02 217
24-Jul-02 143
25-Jul-02 10
26-Jul-02 3
27-Jul-02 254
28-Jul-02 196
29-Jul-02 242
30-Jul-02 436
31-Jul-02 369
1-Aug-02 527
2-Aug-02 1080
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02
10-Aug-02 3
11-Aug-02 3
12-Aug-02 95
13-Aug-02 295
14-Aug-02 508
15-Aug-02 390
16-Aug-02 435
17-Aug-02 237
18-Aug-02 104
19-Aug-02 3
20-Aug-02 120
21-Aug-02 254
22-Aug-02 364
23-Aug-02 535
24-Aug-02 609
25-Aug-02 618
26-Aug-02 674
27-Aug-02 830
28-Aug-02 660
29-Aug-02 441
30-Aug-02 290
31-Aug-02 501
1-Sep-02 512
2-Sep-02 753
3-Sep-02 951
4-Sep-02 365
5-Sep-02 458
6-Sep-02 165
7-Sep-02 412
8-Sep-02 459
9-Sep-02 368
10-Sep-02 552
11-Sep-02 319
12-Sep-02 377
13-Sep-02 635
14-Sep-02 635
15-Sep-02 797
16-Sep-02 797
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 596
22-Sep-02 784
23-Sep-02 656
24-Sep-02 552
25-Sep-02 632
26-Sep-02 522
27-Sep-02 375
28-Sep-02 434
29-Sep-02 221
30-Sep-02 377
1-Oct-02 414
2-Oct-02 530
3-Oct-02 541
4-Oct-02 740
5-Oct-02 1138
6-Oct-02 834
7-Oct-02 668
8-Oct-02 293
9-Oct-02 294
10-Oct-02 182
11-Oct-02 195
12-Oct-02 224
13-Oct-02 243
14-Oct-02 412
15-Oct-02 490
16-Oct-02 617
17-Oct-02 522
18-Oct-02 627
19-Oct-02 640
20-Oct-02 309
21-Oct-02 402
22-Oct-02 370
23-Oct-02 522
24-Oct-02 798
25-Oct-02 625
26-Oct-02 417
27-Oct-02 417
28-Oct-02 318
29-Oct-02 469
30-Oct-02 700
31-Oct-02 568
1-Nov-02 430
2-Nov-02 217
3-Nov-02 145
4-Nov-02 11
5-Nov-02 88
6-Nov-02 181
7-Nov-02 433
8-Nov-02 391
9-Nov-02 276
10-Nov-02 422
11-Nov-02 417
12-Nov-02 352
13-Nov-02 454
14-Nov-02 45
15-Nov-02 3
16-Nov-02 3
17-Nov-02 17
18-Nov-02 60
19-Nov-02 183
20-Nov-02 246
21-Nov-02 469
22-Nov-02 791
23-Nov-02 837
24-Nov-02 657
25-Nov-02 333
26-Nov-02 341
27-Nov-02 213
28-Nov-02 184
29-Nov-02 238
30-Nov-02 136
1-Dec-02 136
2-Dec-02 3
3-Dec-02 64
4-Dec-02 5
5-Dec-02 42
6-Dec-02 88
7-Dec-02 42
8-Dec-02 123
9-Dec-02 204
10-Dec-02 278
11-Dec-02 423
12-Dec-02 371
13-Dec-02 339
14-Dec-02 220
15-Dec-02 124
16-Dec-02 117
17-Dec-02 80
18-Dec-02 228
19-Dec-02 356
20-Dec-02 29
21-Dec-02 126
22-Dec-02 85
23-Dec-02 183
24-Dec-02 656
25-Dec-02 298
26-Dec-02 336
27-Dec-02 324
28-Dec-02 465
29-Dec-02 633
30-Dec-02 742
31-Dec-02 709
1-Jan-03 517
2-Jan-03 590
3-Jan-03 348
4-Jan-03 594
5-Jan-03 571
6-Jan-03 655
7-Jan-03 743
8-Jan-03 357
9-Jan-03 387
10-Jan-03 589
11-Jan-03 461
12-Jan-03 797
13-Jan-03 760
14-Jan-03 461
15-Jan-03 476
16-Jan-03 354
17-Jan-03 149
18-Jan-03 157
19-Jan-03 40
20-Jan-03 209
21-Jan-03 173
22-Jan-03 132
23-Jan-03 169
24-Jan-03 3
25-Jan-03 3
26-Jan-03 115
27-Jan-03 101
28-Jan-03 202
29-Jan-03 223
30-Jan-03 92
31-Jan-03 133
1-Feb-03 110
2-Feb-03 3
3-Feb-03 33
4-Feb-03 57
5-Feb-03 221
6-Feb-03 229
7-Feb-03 205
8-Feb-03 174
9-Feb-03 205
10-Feb-03 363
11-Feb-03 302
12-Feb-03 376
13-Feb-03 479
14-Feb-03 460
15-Feb-03 481
16-Feb-03 415
17-Feb-03 246
18-Feb-03 331
19-Feb-03 468
20-Feb-03 576
21-Feb-03 693
22-Feb-03 560
23-Feb-03 578
24-Feb-03 601
25-Feb-03 965
26-Feb-03 1337
27-Feb-03 1193
28-Feb-03 1263
1-Mar-03 962
2-Mar-03 1028
3-Mar-03 1242
4-Mar-03 1613
5-Mar-03 1878
6-Mar-03 2613
7-Mar-03 2613
8-Mar-03 2240
9-Mar-03 2055
10-Mar-03