Site ID: 806 Lat. -31.0292 Brazil 0
River: Santa Maria Long. -54.6920
Site name: 0 Contributing area: 1094 km2 Ratio to Comparison Station: 0.04
Latest measurement: 19-Jul-10 Mean annual runoff: 8542 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 4232.9 mm
Latest M/C ratio: 1.22 Seven day total: 224.9 mm
Estimated current discharge: 442 m3/sec Percent of mean 7-day total: 73.3 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 3195 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 3241 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
4037 2002 no data no data no data no data no data no data no data 643.1 528.0 1324.7 230.3 1311.2
5733 2003 107.2 56.0 144.4 166.1 1032.1 775.6 298.2 393.3 333.8 425.1 1281.9 719.2
3024 2004 9.4 7.6 8.1 110.6 341.4 232.6 99.1 137.9 196.2 639.2 1133.5 108.6
9751 2005 6.3 7.1 8.1 555.3 1432.2 528.7 689.9 651.0 2167.1 1805.3 1391.9 508.0
5163 2006 242.7 7.3 47.2 55.6 25.3 1062.7 1061.0 994.6 1030.8 635.9 0.0 0.0
12257 2007 81.8 122.9 1116.0 686.9 795.6 877.6 1990.4 2584.3 1481.3 841.8 1035.4 642.9
10717 2008 140.5 98.0 74.8 12.8 142.4 1626.3 2051.1 2331.5 1554.5 1278.1 952.5 454.3
13150 2009 12.6 58.9 13.2 7.9 10.1 32.6 817.0 1334.0 1976.1 1569.0 4550.7 2767.9
4233 2010 695.3 708.5 340.2 602.2 581.8 567.5 737.4 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 8542 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 93
23-Jul-02 93
24-Jul-02 124
25-Jul-02 152
26-Jul-02 299
27-Jul-02 515
28-Jul-02 470
29-Jul-02 378
30-Jul-02 449
31-Jul-02 429
1-Aug-02 451
2-Aug-02 659
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 78
14-Aug-02 419
15-Aug-02 414
16-Aug-02 387
17-Aug-02 188
18-Aug-02 103
19-Aug-02 18
20-Aug-02 238
21-Aug-02 383
22-Aug-02 666
23-Aug-02 817
24-Aug-02 879
25-Aug-02 1070
26-Aug-02 625
27-Aug-02 462
28-Aug-02 3
29-Aug-02 57
30-Aug-02 3
31-Aug-02 215
1-Sep-02 310
2-Sep-02 191
3-Sep-02 489
4-Sep-02 186
5-Sep-02 186
6-Sep-02 182
7-Sep-02 203
8-Sep-02 130
9-Sep-02 204
10-Sep-02 272
11-Sep-02 300
12-Sep-02 379
13-Sep-02 300
14-Sep-02 300
15-Sep-02 266
16-Sep-02 266
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02
22-Sep-02 232
23-Sep-02 552
24-Sep-02 604
25-Sep-02 435
26-Sep-02 507
27-Sep-02 181
28-Sep-02 3
29-Sep-02 3
30-Sep-02 3
1-Oct-02 3
2-Oct-02 3
3-Oct-02 14
4-Oct-02 288
5-Oct-02 521
6-Oct-02 420
7-Oct-02 569
8-Oct-02 175
9-Oct-02 291
10-Oct-02 797
11-Oct-02 1260
12-Oct-02 1529
13-Oct-02 1762
14-Oct-02 1843
15-Oct-02 771
16-Oct-02 605
17-Oct-02 403
18-Oct-02 563
19-Oct-02 455
20-Oct-02 544
21-Oct-02 699
22-Oct-02 399
23-Oct-02 689
24-Oct-02 404
25-Oct-02 354
26-Oct-02 111
27-Oct-02 139
28-Oct-02 148
29-Oct-02 245
30-Oct-02 390
31-Oct-02 379
1-Nov-02 308
2-Nov-02 45
3-Nov-02 80
4-Nov-02 43
5-Nov-02 3
6-Nov-02 49
7-Nov-02 3
8-Nov-02 53
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 3
16-Nov-02 3
17-Nov-02 23
18-Nov-02 171
19-Nov-02 174
20-Nov-02 131
21-Nov-02 3
22-Nov-02 3
23-Nov-02 173
24-Nov-02 173
25-Nov-02 359
26-Nov-02 312
27-Nov-02 59
28-Nov-02 182
29-Nov-02 276
30-Nov-02 266
1-Dec-02 372
2-Dec-02 214
3-Dec-02 793
4-Dec-02 937
5-Dec-02 647
6-Dec-02 858
7-Dec-02 3
8-Dec-02 3
9-Dec-02 976
10-Dec-02 506
11-Dec-02 1417
12-Dec-02 1204
13-Dec-02 407
14-Dec-02 251
15-Dec-02 233
16-Dec-02 51
17-Dec-02 3
18-Dec-02 276
19-Dec-02 312
20-Dec-02 269
21-Dec-02 221
22-Dec-02 154
23-Dec-02 33
24-Dec-02 41
25-Dec-02 987
26-Dec-02 1056
27-Dec-02 1379
28-Dec-02 1270
29-Dec-02 614
30-Dec-02 597
31-Dec-02 518
1-Jan-03 254
2-Jan-03 540
3-Jan-03 3
4-Jan-03 3
5-Jan-03 36
6-Jan-03 54
7-Jan-03 120
8-Jan-03 27
9-Jan-03 3
10-Jan-03 3
11-Jan-03 3
12-Jan-03 22
13-Jan-03 77
14-Jan-03 3
15-Jan-03 8
16-Jan-03 43
17-Jan-03 3
18-Jan-03 99
19-Jan-03 3
20-Jan-03 3
21-Jan-03 3
22-Jan-03 3
23-Jan-03 16
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
10-Feb-03 3
11-Feb-03 164
12-Feb-03 103
13-Feb-03 129
14-Feb-03 19
15-Feb-03 3
16-Feb-03 3
17-Feb-03 3
18-Feb-03 3
19-Feb-03 3
20-Feb-03 3
21-Feb-03 3
22-Feb-03 9
23-Feb-03 3
24-Feb-03 155
25-Feb-03 36
26-Feb-03 3
27-Feb-03 26
28-Feb-03 3
1-Mar-03 242
2-Mar-03 243
3-Mar-03 346
4-Mar-03 119
5-Mar-03 3
6-Mar-03 3
7-Mar-03 3
8-Mar-03 3
9-Mar-03 3
10-Mar-03 3
11-Mar-03 3
12-Mar-03 3
13-Mar-03 3
14-Mar-03 3
15-Mar-03 173
16-Mar-03 6
17-Mar-03 3
18-Mar-03 3
19-Mar-03 3
20-Mar-03 3
21-Mar-03 3
22-Mar-03 53
23-Mar-03 231
24-Mar-03 124
25-Mar-03 221
26-Mar-03 3
27-Mar-03 3
28-Mar-03 3
29-Mar-03 3
30-Mar-03 3
31-Mar-03 3
1-Apr-03 3
2-Apr-03 3
3-Apr-03 55
4-Apr-03 128
5-Apr-03 268
6-Apr-03 369
7-Apr-03 310
8-Apr-03 322
9-Apr-03 3
10-Apr-03 3
11-Apr-03 3
12-Apr-03 3
13-Apr-03 3
14-Apr-03 3
15-Apr-03 45
16-Apr-03 3
17-Apr-03 3
18-Apr-03 3
19-Apr-03 3 </