Site ID: 1108 Lat. -3.9789 Brazil 0
River: Tapajos Long. -55.6257
Site name: 0 Contributing area: 461100 km2 Ratio to Comparison Station: 16.33
Latest measurement: 12-Jul-10 Mean annual runoff: 136 mm (2003-2009)
Hydrologic status: 3 Flood Total runoff this year (2010): 82.6 mm
Latest M/C ratio: 1.93 Seven day total: 3.6 mm
Estimated current discharge: 3950 m3/sec Percent of mean 7-day total: 113.4 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 4210 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 4156 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
68 2002 no data no data no data no data no data no data no data 13.3 14.9 15.1 12.7 11.5
133 2003 11.2 7.7 10.1 11.0 10.3 11.8 15.4 13.6 10.8 13.1 8.4 10.1
105 2004 9.0 7.2 7.1 8.5 10.0 9.1 12.0 13.2 1.5 9.6 8.0 9.4
133 2005 1.2 4.0 11.3 11.1 12.5 14.3 14.7 16.0 13.7 11.8 10.0 11.9
133 2006 11.3 9.2 7.9 11.9 14.6 16.2 15.3 17.4 17.0 12.0 0.0 0.0
148 2007 13.4 9.9 9.8 11.3 12.6 14.0 14.1 17.6 10.9 13.2 11.3 9.5
147 2008 10.5 11.1 11.9 10.6 13.4 11.3 16.6 14.6 13.3 12.6 10.0 11.3
151 2009 12.1 9.6 11.5 10.6 12.4 14.1 14.6 17.6 16.3 12.1 10.7 9.9
83 2010 13.6 12.9 13.3 9.3 11.7 13.3 8.5 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 136 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 2066
23-Jul-02 2066
24-Jul-02 2167
25-Jul-02 2166
26-Jul-02 2460
27-Jul-02 2833
28-Jul-02 2806
29-Jul-02 2853
30-Jul-02 3315
31-Jul-02 3315
1-Aug-02 4379
2-Aug-02 4379
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 2386
10-Aug-02 2215
11-Aug-02 2653
12-Aug-02 2653
13-Aug-02 2956
14-Aug-02 3307
15-Aug-02 3210
16-Aug-02 3210
17-Aug-02 2383
18-Aug-02 2603
19-Aug-02 2286
20-Aug-02 2701
21-Aug-02 3331
22-Aug-02 3021
23-Aug-02 3021
24-Aug-02 1934
25-Aug-02 2227
26-Aug-02 1950
27-Aug-02 2300
28-Aug-02 2619
29-Aug-02 2746
30-Aug-02 3291
31-Aug-02 3442
1-Sep-02 3442
2-Sep-02 3254
3-Sep-02 3245
4-Sep-02 3022
5-Sep-02 2955
6-Sep-02 3023
7-Sep-02 3350
8-Sep-02 3350
9-Sep-02 3960
10-Sep-02 3574
11-Sep-02 2770
12-Sep-02 2903
13-Sep-02 2560
14-Sep-02 2481
15-Sep-02 3238
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 3033
22-Sep-02 3033
23-Sep-02 3743
24-Sep-02 3743
25-Sep-02 3911
26-Sep-02 3536
27-Sep-02 2874
28-Sep-02 2874
29-Sep-02 2622
30-Sep-02 2796
1-Oct-02 3131
2-Oct-02 3425
3-Oct-02 3425
4-Oct-02 3509
5-Oct-02 3398
6-Oct-02 3240
7-Oct-02 3464
8-Oct-02 3548
9-Oct-02 3221
10-Oct-02 3221
11-Oct-02 3129
12-Oct-02 3109
13-Oct-02 2721
14-Oct-02 2736
15-Oct-02 2409
16-Oct-02 2135
17-Oct-02 2501
18-Oct-02 2019
19-Oct-02 2019
20-Oct-02 1156
21-Oct-02 1569
22-Oct-02 1445
23-Oct-02 1644
24-Oct-02 2266
25-Oct-02 2381
26-Oct-02 2381
27-Oct-02 2709
28-Oct-02 2517
29-Oct-02 2197
30-Oct-02 2156
31-Oct-02 1969
1-Nov-02 2108
2-Nov-02 2391
3-Nov-02 2631
4-Nov-02 2631
5-Nov-02 1948
6-Nov-02 1948
7-Nov-02 1333
8-Nov-02 1801
9-Nov-02 2293
10-Nov-02 2293
11-Nov-02 2293
12-Nov-02 2705
13-Nov-02 2390
14-Nov-02 2111
15-Nov-02 2235
16-Nov-02 2082
17-Nov-02 2159
18-Nov-02 2368
19-Nov-02 2488
20-Nov-02 2488
21-Nov-02 2813
22-Nov-02 2575
23-Nov-02 2459
24-Nov-02 2001
25-Nov-02 1620
26-Nov-02 2124
27-Nov-02 2124
28-Nov-02 2765
29-Nov-02 2504
30-Nov-02 1927
1-Dec-02 1986
2-Dec-02 1873
3-Dec-02 2151
4-Dec-02 2484
5-Dec-02 1712
6-Dec-02 1712
7-Dec-02 1317
8-Dec-02 1362
9-Dec-02 1718
10-Dec-02 1458
11-Dec-02 1209
12-Dec-02 1582
13-Dec-02 1582
14-Dec-02 2460
15-Dec-02 2261
16-Dec-02 2239
17-Dec-02 2288
18-Dec-02 2134
19-Dec-02 2228
20-Dec-02 2260
21-Dec-02 2592
22-Dec-02 2592
23-Dec-02 2414
24-Dec-02 2219
25-Dec-02 1821
26-Dec-02 1988
27-Dec-02 2076
28-Dec-02 2382
29-Dec-02 2382
30-Dec-02 1341
31-Dec-02 1611
1-Jan-03 1231
2-Jan-03 1648
3-Jan-03 2349
4-Jan-03 2613
5-Jan-03 2613
6-Jan-03 2201
7-Jan-03 2201
8-Jan-03 1127
9-Jan-03 1485
10-Jan-03 1363
11-Jan-03 1536
12-Jan-03 2076
13-Jan-03 2700
14-Jan-03 2700
15-Jan-03 2782
16-Jan-03 2154
17-Jan-03 1310
18-Jan-03 1435
19-Jan-03 1230
20-Jan-03 1917
21-Jan-03 2480
22-Jan-03 1787
23-Jan-03 1787
24-Jan-03 1211
25-Jan-03 1615
26-Jan-03 2191
27-Jan-03 1679
28-Jan-03 1575
29-Jan-03 1796
30-Jan-03 1796
31-Jan-03 3034
1-Feb-03 2462
2-Feb-03 2030
3-Feb-03 1879
4-Feb-03 1508
5-Feb-03 1141
6-Feb-03 730
7-Feb-03 858
8-Feb-03 858
9-Feb-03 1380
10-Feb-03 1748
11-Feb-03 1807
12-Feb-03 1273
13-Feb-03 1333
14-Feb-03 251
15-Feb-03 251
16-Feb-03 896
17-Feb-03 1085
18-Feb-03 1417
19-Feb-03 1481
20-Feb-03 1410
21-Feb-03 1590
22-Feb-03 1862
23-Feb-03 2586
24-Feb-03 2586
25-Feb-03 2309
26-Feb-03 1877
27-Feb-03 1318
28-Feb-03 1144
1-Mar-03 951
2-Mar-03 1407
3-Mar-03 1407
4-Mar-03 1521
5-Mar-03 1484
6-Mar-03 784
7-Mar-03 448
8-Mar-03 313
9-Mar-03 367
10-Mar-03 497
11-Mar-03 2553
12-Mar-03 2553
13-Mar-03 2203
14-Mar-03 2121
15-Mar-03 1510
16-Mar-03 1786
17-Mar-03 2165
18-Mar-03 2785
19-Mar-03 2785
20-Mar-03 3109
21-Mar-03 3049
22-Mar-03 1901
23-Mar-03 1948
24-Mar-03 1466
25-Mar-03 1539
26-Mar-03 2202
27-Mar-03 1177
28-Mar-03 1177
29-Mar-03 1849
30-Mar-03 2048
31-Mar-03 2582
1-Apr-03 2434
2-Apr-03 2305
3-Apr-03 2581
4-Apr-03 2242
5-Apr-03 2064
6-Apr-03 2091
7-Apr-03 1400
8-Apr-03 1330
9-Apr-03