Site ID: 1098 Lat. -4.2974 Brazil 0
River: Purus Long. -61.7960
Site name: 0 Contributing area: 353530 km2 Ratio to Comparison Station: 12.52
Latest measurement: 22-Jul-10 Mean annual runoff: 83 mm (2003-2009)
Hydrologic status: 3 Flood Total runoff this year (2010): 65.9 mm
Latest M/C ratio: 1.67 Seven day total: 4.0 mm
Estimated current discharge: 2532 m3/sec Percent of mean 7-day total: 136.4 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 3227 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 3097 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 7.8 6.5 5.2 3.0 2.8
54 2003 2.8 2.4 3.6 2.8 4.3 6.3 8.3 8.5 4.9 5.3 2.1 2.7
42 2004 1.6 1.5 1.9 2.6 4.6 5.1 7.2 7.5 1.1 3.9 3.5 1.8
72 2005 0.2 0.9 2.3 9.7 9.1 6.7 8.9 12.3 6.7 3.5 4.8 6.5
89 2006 6.8 6.2 10.3 9.2 8.9 9.7 10.5 13.4 8.9 5.4 0.0 0.0
98 2007 7.0 7.2 8.9 8.4 11.4 12.0 9.5 9.2 7.4 5.5 6.3 5.1
108 2008 5.9 6.5 7.2 13.3 11.0 10.7 12.1 12.8 11.0 6.4 6.1 5.1
115 2009 6.6 7.0 9.5 13.1 13.1 11.0 13.6 11.4 10.2 9.5 4.0 6.4
66 2010 4.4 4.8 8.5 9.9 12.3 14.0 12.1 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 83 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 1196
23-Jul-02 1196
24-Jul-02 1119
25-Jul-02 1200
26-Jul-02 1177
27-Jul-02 1177
28-Jul-02 952
29-Jul-02 1204
30-Jul-02 1228
31-Jul-02 1228
1-Aug-02 1723
2-Aug-02
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 2635
10-Aug-02 2635
11-Aug-02 1882
12-Aug-02 1882
13-Aug-02 912
14-Aug-02 933
15-Aug-02 829
16-Aug-02 858
17-Aug-02 947
18-Aug-02 1346
19-Aug-02 1346
20-Aug-02 1216
21-Aug-02 1365
22-Aug-02 1102
23-Aug-02 1458
24-Aug-02 1739
25-Aug-02 1412
26-Aug-02 1639
27-Aug-02 573
28-Aug-02 573
29-Aug-02 677
30-Aug-02 967
31-Aug-02 1254
1-Sep-02 1296
2-Sep-02 1485
3-Sep-02 1021
4-Sep-02 1021
5-Sep-02 597
6-Sep-02 805
7-Sep-02 608
8-Sep-02 674
9-Sep-02 727
10-Sep-02 714
11-Sep-02 1041
12-Sep-02 1062
13-Sep-02 1062
14-Sep-02 923
15-Sep-02 923
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 1672
22-Sep-02 1643
23-Sep-02 1419
24-Sep-02 1273
25-Sep-02 1142
26-Sep-02 1051
27-Sep-02 1087
28-Sep-02 1335
29-Sep-02 1335
30-Sep-02 521
1-Oct-02 849
2-Oct-02 849
3-Oct-02 903
4-Oct-02 1102
5-Oct-02 937
6-Oct-02 937
7-Oct-02 1002
8-Oct-02 911
9-Oct-02 615
10-Oct-02 811
11-Oct-02 703
12-Oct-02 731
13-Oct-02 1120
14-Oct-02 710
15-Oct-02 710
16-Oct-02 679
17-Oct-02 624
18-Oct-02 635
19-Oct-02 526
20-Oct-02 412
21-Oct-02 645
22-Oct-02 645
23-Oct-02 911
24-Oct-02 519
25-Oct-02 203
26-Oct-02 202
27-Oct-02 30
28-Oct-02 253
29-Oct-02 390
30-Oct-02 760
31-Oct-02 760
1-Nov-02 495
2-Nov-02 368
3-Nov-02 136
4-Nov-02 182
5-Nov-02 192
6-Nov-02 284
7-Nov-02 284
8-Nov-02 3
9-Nov-02 76
10-Nov-02 76
11-Nov-02 262
12-Nov-02 458
13-Nov-02 741
14-Nov-02 741
15-Nov-02 572
16-Nov-02 572
17-Nov-02 424
18-Nov-02 413
19-Nov-02 456
20-Nov-02 456
21-Nov-02 391
22-Nov-02 731
23-Nov-02 731
24-Nov-02 635
25-Nov-02 497
26-Nov-02 404
27-Nov-02 455
28-Nov-02 427
29-Nov-02 365
30-Nov-02 330
1-Dec-02 348
2-Dec-02 348
3-Dec-02 544
4-Dec-02 279
5-Dec-02 99
6-Dec-02 259
7-Dec-02 179
8-Dec-02 747
9-Dec-02 747
10-Dec-02 591
11-Dec-02 288
12-Dec-02 3
13-Dec-02 3
14-Dec-02 3
15-Dec-02 3
16-Dec-02 3
17-Dec-02 741
18-Dec-02 741
19-Dec-02 879
20-Dec-02 651
21-Dec-02 497
22-Dec-02 580
23-Dec-02 477
24-Dec-02 672
25-Dec-02 672
26-Dec-02 453
27-Dec-02 259
28-Dec-02 3
29-Dec-02 113
30-Dec-02 51
31-Dec-02 124
1-Jan-03 330
2-Jan-03 291
3-Jan-03 291
4-Jan-03 694
5-Jan-03 455
6-Jan-03 441
7-Jan-03 573
8-Jan-03 413
9-Jan-03 756
10-Jan-03 756
11-Jan-03 581
12-Jan-03 520
13-Jan-03 359
14-Jan-03 443
15-Jan-03 424
16-Jan-03 570
17-Jan-03 782
18-Jan-03 464
19-Jan-03 464
20-Jan-03 31
21-Jan-03 281
22-Jan-03 374
23-Jan-03 400
24-Jan-03 622
25-Jan-03 3
26-Jan-03 3
27-Jan-03 3
28-Jan-03 3
29-Jan-03 54
30-Jan-03 126
31-Jan-03 83
1-Feb-03 84
2-Feb-03 279
3-Feb-03 159
4-Feb-03 159
5-Feb-03 3
6-Feb-03 57
7-Feb-03 29
8-Feb-03 241
9-Feb-03 477
10-Feb-03 565
11-Feb-03 565
12-Feb-03 504
13-Feb-03 444
14-Feb-03 314
15-Feb-03 352
16-Feb-03 279
17-Feb-03 334
18-Feb-03 480
19-Feb-03 421
20-Feb-03 421
21-Feb-03 503
22-Feb-03 593
23-Feb-03 717
24-Feb-03 441
25-Feb-03 346
26-Feb-03 258
27-Feb-03 258
28-Feb-03 604
1-Mar-03 515
2-Mar-03 258
3-Mar-03 382
4-Mar-03 289
5-Mar-03 464
6-Mar-03 826
7-Mar-03 402
8-Mar-03 402
9-Mar-03 262
10-Mar-03 209
11-Mar-03 332
12-Mar-03 269
13-Mar-03 124
14-Mar-03 472
15-Mar-03 472
16-Mar-03 433
17-Mar-03 399
18-Mar-03 112
19-Mar-03 125
20-Mar-03 141
21-Mar-03 71
22-Mar-03 266
23-Mar-03 1011
24-Mar-03 1011
25-Mar-03 1060
26-Mar-03 1051
27-Mar-03 1077
28-Mar-03 767
29-Mar-03 730
30-Mar-03 381
31-Mar-03 381
1-Apr-03 290
2-Apr-03 62
3-Apr-03 69
4-Apr-03 178
5-Apr-03 76
6-Apr-03 316
7-Apr-03 267
8-Apr-03 257
9-Apr-03 257
10-Apr-03 206
11-Apr-03 366
12-Apr-03 382 </