Site ID: 807 Lat. -30.7093 Brazil 0
River: Santa Maria Long. -54.7102
Site name: 0 Contributing area: 2716 km2 Ratio to Comparison Station: 0.10
Latest measurement: 19-Jul-10 Mean annual runoff: 3976 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 1496.9 mm
Latest M/C ratio: 1.18 Seven day total: 70.5 mm
Estimated current discharge: 275 m3/sec Percent of mean 7-day total: 57.5 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 3441 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 3527 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
4993 2002 no data no data no data no data no data no data no data 1093.8 800.8 1624.4 324.9 1149.4
4812 2003 192.3 153.8 305.8 54.5 786.5 893.0 365.2 356.3 156.1 331.1 497.6 719.6
3061 2004 104.4 16.5 7.0 18.1 319.3 324.7 259.2 368.4 341.6 368.1 600.6 333.0
3028 2005 36.9 2.9 3.3 57.2 407.7 193.5 230.4 217.3 626.9 882.5 292.4 77.3
1102 2006 116.0 3.0 12.2 18.7 4.8 153.5 353.7 223.4 146.1 70.6 0.0 0.0
5058 2007 7.0 23.6 417.2 126.6 82.2 482.8 813.8 1212.8 655.0 394.4 448.3 394.8
4415 2008 93.8 15.0 60.8 3.8 47.6 624.5 871.5 1042.4 566.0 554.3 276.8 258.7
6355 2009 53.7 173.0 50.0 47.3 49.8 36.1 220.2 291.2 952.0 512.8 2510.7 1458.1
1497 2010 529.7 255.6 59.7 126.6 139.8 162.2 223.2 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 3976 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-02 189
23-Jul-02 189
24-Jul-02 161
25-Jul-02 329
26-Jul-02 619
27-Jul-02 1311
28-Jul-02 1539
29-Jul-02 1373
30-Jul-02 1540
31-Jul-02 1504
1-Aug-02 1278
2-Aug-02 2042
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-02 510
13-Aug-02 965
14-Aug-02 2079
15-Aug-02 1850
16-Aug-02 1809
17-Aug-02 1438
18-Aug-02 1016
19-Aug-02 896
20-Aug-02 1154
21-Aug-02 568
22-Aug-02 531
23-Aug-02 850
24-Aug-02 1466
25-Aug-02 2027
26-Aug-02 3395
27-Aug-02 4224
28-Aug-02 2462
29-Aug-02 2203
30-Aug-02 658
31-Aug-02 959
1-Sep-02 1013
2-Sep-02 672
3-Sep-02 1158
4-Sep-02 583
5-Sep-02 583
6-Sep-02 599
7-Sep-02 539
8-Sep-02 455
9-Sep-02 459
10-Sep-02 424
11-Sep-02 443
12-Sep-02 464
13-Sep-02 111
14-Sep-02 111
15-Sep-02 3
16-Sep-02 3
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02
22-Sep-02 3469
23-Sep-02 3040
24-Sep-02 2528
25-Sep-02 2541
26-Sep-02 2237
27-Sep-02 1479
28-Sep-02 1474
29-Sep-02 388
30-Sep-02 399
1-Oct-02 386
2-Oct-02 417
3-Oct-02 479
4-Oct-02 1153
5-Oct-02 1534
6-Oct-02 2959
7-Oct-02 3226
8-Oct-02 2600
9-Oct-02 2732
10-Oct-02 2122
11-Oct-02 2767
12-Oct-02 3142
13-Oct-02 3260
14-Oct-02 4050
15-Oct-02 2485
16-Oct-02 2101
17-Oct-02 1229
18-Oct-02 1491
19-Oct-02 1288
20-Oct-02 1344
21-Oct-02 1753
22-Oct-02 826
23-Oct-02 1136
24-Oct-02 502
25-Oct-02 552
26-Oct-02 560
27-Oct-02 753
28-Oct-02 930
29-Oct-02 1100
30-Oct-02 1296
31-Oct-02 889
1-Nov-02 839
2-Nov-02 531
3-Nov-02 555
4-Nov-02 555
5-Nov-02 665
6-Nov-02 833
7-Nov-02 1041
8-Nov-02 1207
9-Nov-02 200
10-Nov-02 200
11-Nov-02 229
12-Nov-02 283
13-Nov-02 325
14-Nov-02 195
15-Nov-02 166
16-Nov-02 9
17-Nov-02 15
18-Nov-02 3
19-Nov-02 29
20-Nov-02 14
21-Nov-02 3
22-Nov-02 54
23-Nov-02 576
24-Nov-02 576
25-Nov-02 745
26-Nov-02 3
27-Nov-02 3
28-Nov-02 3
29-Nov-02 3
30-Nov-02 351
1-Dec-02 319
2-Dec-02 196
3-Dec-02 1052
4-Dec-02 2207
5-Dec-02 1828
6-Dec-02 2578
7-Dec-02 1361
8-Dec-02 567
9-Dec-02 2059
10-Dec-02 1369
11-Dec-02 3796
12-Dec-02 2981
13-Dec-02 2113
14-Dec-02 1647
15-Dec-02 1148
16-Dec-02 908
17-Dec-02 535
18-Dec-02 404
19-Dec-02 308
20-Dec-02 196
21-Dec-02 258
22-Dec-02 291
23-Dec-02 299
24-Dec-02 316
25-Dec-02 838
26-Dec-02 899
27-Dec-02 1084
28-Dec-02 1223
29-Dec-02 1064
30-Dec-02 1071
31-Dec-02 1212
1-Jan-03 1051
2-Jan-03 1095
3-Jan-03 3
4-Jan-03 117
5-Jan-03 194
6-Jan-03 186
7-Jan-03 267
8-Jan-03 193
9-Jan-03 147
10-Jan-03 153
11-Jan-03 109
12-Jan-03 185
13-Jan-03 224
14-Jan-03 179
15-Jan-03 199
16-Jan-03 225
17-Jan-03 201
18-Jan-03 245
19-Jan-03 170
20-Jan-03 204
21-Jan-03 107
22-Jan-03 99
23-Jan-03 134
24-Jan-03 3
25-Jan-03 3
26-Jan-03 52
27-Jan-03 3
28-Jan-03 113
29-Jan-03 113
30-Jan-03 39
31-Jan-03 33
1-Feb-03 32
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 51
9-Feb-03 161
10-Feb-03 345
11-Feb-03 413
12-Feb-03 364
13-Feb-03 231
14-Feb-03 263
15-Feb-03 140
16-Feb-03 131
17-Feb-03 96
18-Feb-03 3
19-Feb-03 13
20-Feb-03 3
21-Feb-03 215
22-Feb-03 261
23-Feb-03 223
24-Feb-03 508
25-Feb-03 282
26-Feb-03 365
27-Feb-03 405
28-Feb-03 312
1-Mar-03 171
2-Mar-03 338
3-Mar-03 300
4-Mar-03 328
5-Mar-03 540
6-Mar-03 191
7-Mar-03 191
8-Mar-03 3
9-Mar-03 39
10-Mar-03 66
11-Mar-03 273
12-Mar-03 383
13-Mar-03 364
14-Mar-03 518
15-Mar-03 492
16-Mar-03 354
17-Mar-03 494
18-Mar-03 447
19-Mar-03 274
20-Mar-03 230
21-Mar-03 179
22-Mar-03 171
23-Mar-03 239
24-Mar-03 358
25-Mar-03 545
26-Mar-03 579
27-Mar-03 440
28-Mar-03 353
29-Mar-03 368
30-Mar-03 300
31-Mar-03 84
1-Apr-03 140
2-Apr-03 3
3-Apr-03 3
4-Apr-03 3
5-Apr-03 31
6-Apr-03 107
7-Apr-03 87
8-Apr-03 224
9-Apr-03 15
10-Apr-03 7
11-Apr-03 50
12-Apr-03 45
13-Apr-03 24
14-Apr-03 48
15-Apr-03 84
16-Apr-03 3
17-Apr-03 3
18-Apr-03 3