Site ID: 811 Lat. -30.1351 Brazil 0
River: Santa Maria Long. -54.8882
Site name: 0 Contributing area: 11733 km2 Ratio to Comparison Station: 0.42
Latest measurement: 19-Jul-10 Mean annual runoff: 393 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 315.9 mm
Latest M/C ratio: 1.14 Seven day total: 10.9 mm
Estimated current discharge: 149 m3/sec Percent of mean 7-day total: 86.8 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 1956 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 2041 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
159 2002 no data no data no data no data no data no data no data 6.3 31.5 59.8 14.0 47.1
48 2003 4.0 0.7 0.8 0.7 7.9 1.2 1.2 1.9 1.7 9.8 10.0 8.3
33 2004 0.8 0.7 0.8 0.7 0.8 0.7 0.8 1.3 0.6 8.4 16.7 0.8
400 2005 0.6 0.8 0.8 9.7 54.9 8.4 6.7 49.1 100.8 74.8 48.2 45.4
151 2006 14.6 1.1 2.8 4.3 3.3 15.9 34.9 10.9 34.4 29.2 0.0 0.0
696 2007 7.3 3.8 58.5 42.6 37.8 82.7 98.4 88.3 106.0 82.0 46.2 42.3
644 2008 7.7 0.7 6.8 6.3 30.4 61.8 134.5 131.1 90.8 91.9 57.3 25.2
780 2009 1.6 1.4 11.6 1.5 1.1 4.8 7.9 48.0 122.0 106.7 314.3 159.4
316 2010 123.1 32.9 18.4 28.4 36.9 36.6 39.7 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 393 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 3
23-Jul-02 3
24-Jul-02 3
25-Jul-02 3
26-Jul-02 3
27-Jul-02 295
28-Jul-02 201
29-Jul-02 35
30-Jul-02 5
31-Jul-02 3
1-Aug-02 3
2-Aug-02 3
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 3
13-Aug-02 96
14-Aug-02 22
15-Aug-02 48
16-Aug-02 105
17-Aug-02 3
18-Aug-02 3
19-Aug-02 3
20-Aug-02 3
21-Aug-02 156
22-Aug-02 57
23-Aug-02 3
24-Aug-02 3
25-Aug-02 3
26-Aug-02 3
27-Aug-02 191
28-Aug-02 69
29-Aug-02 58
30-Aug-02 3
31-Aug-02 3
1-Sep-02 3
2-Sep-02 70
3-Sep-02 128
4-Sep-02 88
5-Sep-02 71
6-Sep-02 3
7-Sep-02 3
8-Sep-02 3
9-Sep-02 3
10-Sep-02 3
11-Sep-02 3
12-Sep-02 47
13-Sep-02 7
14-Sep-02 7
15-Sep-02 3
16-Sep-02 3
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 1047
22-Sep-02 709
23-Sep-02 655
24-Sep-02 475
25-Sep-02 279
26-Sep-02 241
27-Sep-02 117
28-Sep-02 210
29-Sep-02 81
30-Sep-02 24
1-Oct-02 3
2-Oct-02 3
3-Oct-02 3
4-Oct-02 151
5-Oct-02 374
6-Oct-02 334
7-Oct-02 601
8-Oct-02 311
9-Oct-02 224
10-Oct-02 221
11-Oct-02 62
12-Oct-02 155
13-Oct-02 238
14-Oct-02 331
15-Oct-02 298
16-Oct-02 468
17-Oct-02 367
18-Oct-02 457
19-Oct-02 487
20-Oct-02 507
21-Oct-02 768
22-Oct-02 379
23-Oct-02 524
24-Oct-02 327
25-Oct-02 297
26-Oct-02 211
27-Oct-02 3
28-Oct-02 3
29-Oct-02 3
30-Oct-02 3
31-Oct-02 3
1-Nov-02 60
2-Nov-02 18
3-Nov-02 3
4-Nov-02 3
5-Nov-02 3
6-Nov-02 3
7-Nov-02 82
8-Nov-02 27
9-Nov-02 3
10-Nov-02 3
11-Nov-02 3
12-Nov-02 3
13-Nov-02 3
14-Nov-02 3
15-Nov-02 29
16-Nov-02 3
17-Nov-02 3
18-Nov-02 3
19-Nov-02 3
20-Nov-02 3
21-Nov-02 3
22-Nov-02 65
23-Nov-02 423
24-Nov-02 508
25-Nov-02 385
26-Nov-02 233
27-Nov-02 3
28-Nov-02 3
29-Nov-02 3
30-Nov-02 3
1-Dec-02 3
2-Dec-02 30
3-Dec-02 24
4-Dec-02 143
5-Dec-02 189
6-Dec-02 215
7-Dec-02 3
8-Dec-02 3
9-Dec-02 3
10-Dec-02 3
11-Dec-02 849
12-Dec-02 1004
13-Dec-02 655
14-Dec-02 437
15-Dec-02 596
16-Dec-02 139
17-Dec-02 311
18-Dec-02 34
19-Dec-02 3
20-Dec-02 3
21-Dec-02 3
22-Dec-02 3
23-Dec-02 3
24-Dec-02 65
25-Dec-02 3
26-Dec-02 180
27-Dec-02 373
28-Dec-02 365
29-Dec-02 387
30-Dec-02 228
31-Dec-02 140
1-Jan-03 43
2-Jan-03 403
3-Jan-03 3
4-Jan-03 3
5-Jan-03 3
6-Jan-03 3
7-Jan-03 3
8-Jan-03 3
9-Jan-03 3
10-Jan-03 3
11-Jan-03 3
12-Jan-03 3
13-Jan-03 3
14-Jan-03 3
15-Jan-03 3
16-Jan-03 3
17-Jan-03 3
18-Jan-03 3
19-Jan-03 3
20-Jan-03 3
21-Jan-03 3
22-Jan-03 3
23-Jan-03 3
24-Jan-03 3
25-Jan-03 3
26-Jan-03 3
27-Jan-03 3
28-Jan-03 3
29-Jan-03 3
30-Jan-03 3
31-Jan-03 3
1-Feb-03 3
2-Feb-03 3
3-Feb-03 3
4-Feb-03 3
5-Feb-03 3
6-Feb-03 3
7-Feb-03 3
8-Feb-03 3
9-Feb-03 3
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21-Feb-03 3
22-Feb-03 3
23-Feb-03 3
24-Feb-03 3
25-Feb-03 3
26-Feb-03 3
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28-Feb-03 3
1-Mar-03 3
2-Mar-03 3
3-Mar-03 3
4-Mar-03 3
5-Mar-03 3
6-Mar-03 3
7-Mar-03 3
8-Mar-03 3
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24-Mar-03 3
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26-Mar-03 3
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1-Apr-03 3
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28-Apr-03 3
29-Apr-03 3
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1-May-03 3
2-May-03 3
3-May-03 3
4-May-03 3
5-May-03 3
6-May-03 3