Site ID: 156 Lat. -2.4726 Brazil 0
River: RioNegro Long. -60.9970
Site name: 0 Contributing area: 704972 km2 Ratio to Comparison Station: 1.32
Latest measurement: 31-Jul-10 Mean annual runoff: 199 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 123.0 mm
Latest M/C ratio: 1.89 Seven day total: 4.5 mm
Estimated current discharge: 3696 m3/sec Percent of mean 7-day total: 93.3 % (today's value compared to mean for same period, 2003-2009)
Ice-cover determination: 5 yr recurrence flood: 7674 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 7602 m3/sec (from Gumbel Extreme Value analysis)
Comparison Station Information:  Pakse (2469260)           Contributing Area:   sq mi 536010 sq km
(Data from this gaging station are used for the calibration to discharge, with an adjustment for different contributing areas)
Notes: Calibration to nearby ground station 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
72 2002 no data no data no data no data no data no data no data 14.5 12.6 14.5 14.9 15.6
186 2003 18.1 18.1 17.4 14.5 15.1 15.8 14.6 15.9 16.6 14.0 11.0 15.2
153 2004 16.5 15.7 13.9 13.4 15.7 14.7 12.8 14.1 1.7 10.0 11.0 13.9
198 2005 2.6 15.7 17.1 18.2 17.4 16.9 19.1 21.5 17.8 16.7 16.0 18.4
184 2006 18.2 15.5 10.6 18.5 17.1 18.0 22.5 23.9 22.2 17.1 0.0 0.0
223 2007 17.6 17.1 15.6 16.7 19.2 21.7 22.1 21.9 21.0 19.9 17.3 12.4
220 2008 16.6 14.8 18.5 15.8 18.9 19.5 21.2 21.5 20.3 16.9 16.9 18.5
229 2009 17.5 14.9 19.0 19.6 18.6 18.1 22.8 24.0 22.8 20.8 16.9 14.3
123 2010 17.1 14.4 17.9 12.8 16.4 21.9 21.2 1.4 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 199 Standard Deviation: 6.4
Trend in Annual Runoff (slope):  5.9
Discharge is estimated via a rating equation directly from the remote sensing data (M/C ratio) shown below.
Explanation:   Green line records upwelling microwave emission from within 5 km radius of a calbration land target; blue line is emission from within 5 km radious of the measurement target 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.
GoogleEarth View of Measurement Site
Return
Estimated
Disharge
Data
Date m3/sec
22-Jul-02 4886
23-Jul-02 4886
24-Jul-02 4443
25-Jul-02 4372
26-Jul-02 4305
27-Jul-02 4305
28-Jul-02 3054
29-Jul-02 3314
30-Jul-02 3722
31-Jul-02 3722
1-Aug-02 3845
2-Aug-02
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 7390
10-Aug-02 7390
11-Aug-02 6937
12-Aug-02 6937
13-Aug-02 5343
14-Aug-02 4300
15-Aug-02 3325
16-Aug-02 3674
17-Aug-02 3389
18-Aug-02 5333
19-Aug-02 5333
20-Aug-02 5397
21-Aug-02 5723
22-Aug-02 4966
23-Aug-02 5710
24-Aug-02 6129
25-Aug-02 5596
26-Aug-02 6425
27-Aug-02 2763
28-Aug-02 2763
29-Aug-02 1566
30-Aug-02 3427
31-Aug-02 4869
1-Sep-02 4163
2-Sep-02 5383
3-Sep-02 3282
4-Sep-02 3282
5-Sep-02 2630
6-Sep-02 3964
7-Sep-02 4092
8-Sep-02 4360
9-Sep-02 5427
10-Sep-02 4908
11-Sep-02 5310
12-Sep-02 5938
13-Sep-02 5938
14-Sep-02 6452
15-Sep-02 6452
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 5625
22-Sep-02 5610
23-Sep-02 5008
24-Sep-02 4302
25-Sep-02 3878
26-Sep-02 2266
27-Sep-02 1587
28-Sep-02 1059
29-Sep-02 1059
30-Sep-02 1188
1-Oct-02 2438
2-Oct-02 2438
3-Oct-02 2895
4-Oct-02 3819
5-Oct-02 4163
6-Oct-02 4163
7-Oct-02 3435
8-Oct-02 4487
9-Oct-02 4886
10-Oct-02 4640
11-Oct-02 5439
12-Oct-02 3938
13-Oct-02 3158
14-Oct-02 1643
15-Oct-02 1643
16-Oct-02 2101
17-Oct-02 3463
18-Oct-02 4921
19-Oct-02 5170
20-Oct-02 6216
21-Oct-02 4752
22-Oct-02 4752
23-Oct-02 4137
24-Oct-02 4345
25-Oct-02 4080
26-Oct-02 3435
27-Oct-02 3130
28-Oct-02 3081
29-Oct-02 3052
30-Oct-02 4127
31-Oct-02 4127
1-Nov-02 3358
2-Nov-02 3381
3-Nov-02 3243
4-Nov-02 2906
5-Nov-02 2836
6-Nov-02 2289
7-Nov-02 2289
8-Nov-02 4114
9-Nov-02 3971
10-Nov-02 3971
11-Nov-02 4488
12-Nov-02 4671
13-Nov-02 5702
14-Nov-02 5702
15-Nov-02 3709
16-Nov-02 3709
17-Nov-02 2652
18-Nov-02 3848
19-Nov-02 4964
20-Nov-02 4964
21-Nov-02 6572
22-Nov-02 4329
23-Nov-02 4329
24-Nov-02 4774
25-Nov-02 4644
26-Nov-02 4055
27-Nov-02 4163
28-Nov-02 3826
29-Nov-02 3828
30-Nov-02 4459
1-Dec-02 4287
2-Dec-02 4287
3-Dec-02 3582
4-Dec-02 4110
5-Dec-02 4086
6-Dec-02 4666
7-Dec-02 5575
8-Dec-02 5380
9-Dec-02 5380
10-Dec-02 3503
11-Dec-02 3134
12-Dec-02 2785
13-Dec-02 3376
14-Dec-02 3786
15-Dec-02 4244
16-Dec-02 4490
17-Dec-02 4088
18-Dec-02 4088
19-Dec-02 3430
20-Dec-02 3870
21-Dec-02 3559
22-Dec-02 4505
23-Dec-02 5654
24-Dec-02 4843
25-Dec-02 4843
26-Dec-02 2852
27-Dec-02 3490
28-Dec-02 3766
29-Dec-02 3806
30-Dec-02 4297
31-Dec-02 3568
1-Jan-03 3297
2-Jan-03 4215
3-Jan-03 4215
4-Jan-03 4884
5-Jan-03 5179
6-Jan-03 4826
7-Jan-03 4722
8-Jan-03 5136
9-Jan-03 4529
10-Jan-03 4529
11-Jan-03 4897
12-Jan-03 5070
13-Jan-03 4499
14-Jan-03 4874
15-Jan-03 4750
16-Jan-03 4957
17-Jan-03 6088
18-Jan-03 5529
19-Jan-03 5529
20-Jan-03 4910
21-Jan-03 5843
22-Jan-03 6291
23-Jan-03 5301
24-Jan-03 5510
25-Jan-03 3866
26-Jan-03 3866
27-Jan-03 4167
28-Jan-03 4432
29-Jan-03 3905
30-Jan-03 4015
31-Jan-03 3985
1-Feb-03 4320
2-Feb-03 5223
3-Feb-03 4388
4-Feb-03 4388
5-Feb-03 3785
6-Feb-03 4111
7-Feb-03 4771
8-Feb-03 5288
9-Feb-03 5570
10-Feb-03 5964
11-Feb-03 5964
12-Feb-03 4332
13-Feb-03 4085
14-Feb-03 3815
15-Feb-03 4208
16-Feb-03 4571
17-Feb-03 5458
18-Feb-03 5831
19-Feb-03 6212
20-Feb-03 6212
21-Feb-03 5987
22-Feb-03 6496
23-Feb-03 6639
24-Feb-03 6345
25-Feb-03 6638
26-Feb-03 5754
27-Feb-03 5754
28-Feb-03 5333
1-Mar-03 5430
2-Mar-03 4376
3-Mar-03 4898
4-Mar-03 4889
5-Mar-03 4607
6-Mar-03 5603
7-Mar-03 3584
8-Mar-03 3584
9-Mar-03 3367
10-Mar-03 3998
11-Mar-03 4831
12-Mar-03 5394
13-Mar-03 5973
14-Mar-03 5719
15-Mar-03 5719
16-Mar-03 4637
17-Mar-03 5275
18-Mar-03 4745
19-Mar-03 4509