Site ID: 809 Lat. -30.8620 Brazil 0
River: Santa Maria Trib Long. -55.0264
Site name: 0 Contributing area: 2006 km2 Ratio to Comparison Station: 0.07
Latest measurement: 19-Jul-10 Mean annual runoff: 4525 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 2389.4 mm
Latest M/C ratio: 1.24 Seven day total: 197.3 mm
Estimated current discharge: 513 m3/sec Percent of mean 7-day total: 197.1 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 2286 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 2461 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
4808 2002 no data no data no data no data no data no data no data 857.2 921.1 1338.5 471.5 1219.8
7804 2003 542.6 359.6 579.9 408.8 956.3 928.8 603.8 557.2 489.7 541.8 859.3 976.0
4814 2004 399.3 260.2 191.5 152.2 500.1 479.0 410.4 290.2 548.0 511.3 677.1 394.5
4002 2005 143.9 35.3 6.7 180.2 628.8 359.0 421.2 243.6 895.6 622.0 430.7 34.9
885 2006 44.8 4.0 67.4 4.3 4.4 199.4 211.1 151.3 102.6 96.2 0.0 0.0
5698 2007 11.7 34.5 1182.8 414.2 374.2 482.0 838.7 1079.3 482.5 320.4 295.9 181.5
3756 2008 18.9 35.0 17.0 11.5 9.4 470.2 845.6 1066.9 625.5 351.4 120.2 184.5
4720 2009 14.4 7.0 16.5 4.3 4.4 4.3 20.3 155.0 578.8 566.0 1988.9 1359.8
2389 2010 467.8 809.8 215.8 188.4 103.7 196.4 407.5 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 4525 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-02 109
23-Jul-02 109
24-Jul-02 30
25-Jul-02 355
26-Jul-02 517
27-Jul-02 1423
28-Jul-02 1154
29-Jul-02 970
30-Jul-02 930
31-Jul-02 779
1-Aug-02 841
2-Aug-02 816
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02
10-Aug-02 1693
11-Aug-02 1693
12-Aug-02 1369
13-Aug-02 1379
14-Aug-02 980
15-Aug-02 913
16-Aug-02 854
17-Aug-02 562
18-Aug-02 603
19-Aug-02 503
20-Aug-02 310
21-Aug-02 119
22-Aug-02 299
23-Aug-02 216
24-Aug-02 573
25-Aug-02 800
26-Aug-02 933
27-Aug-02 1562
28-Aug-02 1028
29-Aug-02 917
30-Aug-02 434
31-Aug-02 507
1-Sep-02 437
2-Sep-02 459
3-Sep-02 718
4-Sep-02 672
5-Sep-02 560
6-Sep-02 393
7-Sep-02 350
8-Sep-02 269
9-Sep-02 280
10-Sep-02 299
11-Sep-02 316
12-Sep-02 323
13-Sep-02 1046
14-Sep-02 1046
15-Sep-02 1820
16-Sep-02 1820
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 1978
22-Sep-02 1635
23-Sep-02 1579
24-Sep-02 1382
25-Sep-02 1119
26-Sep-02 1053
27-Sep-02 653
28-Sep-02 599
29-Sep-02 325
30-Sep-02 252
1-Oct-02 27
2-Oct-02 134
3-Oct-02 67
4-Oct-02 590
5-Oct-02 1169
6-Oct-02 1621
7-Oct-02 1616
8-Oct-02 1166
9-Oct-02 1277
10-Oct-02 1142
11-Oct-02 1308
12-Oct-02 1502
13-Oct-02 1736
14-Oct-02 2306
15-Oct-02 1676
16-Oct-02 1479
17-Oct-02 946
18-Oct-02 962
19-Oct-02 951
20-Oct-02 818
21-Oct-02 849
22-Oct-02 582
23-Oct-02 975
24-Oct-02 899
25-Oct-02 974
26-Oct-02 999
27-Oct-02 702
28-Oct-02 775
29-Oct-02 617
30-Oct-02 631
31-Oct-02 582
1-Nov-02 465
2-Nov-02 295
3-Nov-02 274
4-Nov-02 215
5-Nov-02 70
6-Nov-02 3
7-Nov-02 3
8-Nov-02 58
9-Nov-02 340
10-Nov-02 340
11-Nov-02 56
12-Nov-02 101
13-Nov-02 3
14-Nov-02 64
15-Nov-02 342
16-Nov-02 209
17-Nov-02 185
18-Nov-02 146
19-Nov-02 159
20-Nov-02 153
21-Nov-02 197
22-Nov-02 233
23-Nov-02 846
24-Nov-02 885
25-Nov-02 1111
26-Nov-02 882
27-Nov-02 694
28-Nov-02 822
29-Nov-02 780
30-Nov-02 1014
1-Dec-02 1199
2-Dec-02 42
3-Dec-02 406
4-Dec-02 502
5-Dec-02 485
6-Dec-02 976
7-Dec-02 511
8-Dec-02 213
9-Dec-02 1131
10-Dec-02 1362
11-Dec-02 1953
12-Dec-02 1795
13-Dec-02 1303
14-Dec-02 958
15-Dec-02 847
16-Dec-02 577
17-Dec-02 510
18-Dec-02 433
19-Dec-02 371
20-Dec-02 337
21-Dec-02 405
22-Dec-02 409
23-Dec-02 447
24-Dec-02 488
25-Dec-02 866
26-Dec-02 1401
27-Dec-02 1884
28-Dec-02 1935
29-Dec-02 1923
30-Dec-02 1406
31-Dec-02 1247
1-Jan-03 828
2-Jan-03 513
3-Jan-03 551
4-Jan-03 409
5-Jan-03 362
6-Jan-03 362
7-Jan-03 304
8-Jan-03 377
9-Jan-03 429
10-Jan-03 422
11-Jan-03 330
12-Jan-03 352
13-Jan-03 374
14-Jan-03 368
15-Jan-03 385
16-Jan-03 327
17-Jan-03 318
18-Jan-03 315
19-Jan-03 441
20-Jan-03 429
21-Jan-03 875
22-Jan-03 676
23-Jan-03 677
24-Jan-03 686
25-Jan-03 279
26-Jan-03 241
27-Jan-03 228
28-Jan-03 191
29-Jan-03 170
30-Jan-03 188
31-Jan-03 192
1-Feb-03 188
2-Feb-03 259
3-Feb-03 266
4-Feb-03 226
5-Feb-03 261
6-Feb-03 205
7-Feb-03 223
8-Feb-03 253
9-Feb-03 223
10-Feb-03 259
11-Feb-03 264
12-Feb-03 9
13-Feb-03 50
14-Feb-03 124
15-Feb-03 94
16-Feb-03 204
17-Feb-03 196
18-Feb-03 202
19-Feb-03 245
20-Feb-03 211
21-Feb-03 337
22-Feb-03 401
23-Feb-03 437
24-Feb-03 536
25-Feb-03 469
26-Feb-03 470
27-Feb-03 784
28-Feb-03 954
1-Mar-03 907
2-Mar-03 749
3-Mar-03 528
4-Mar-03 311
5-Mar-03 336
6-Mar-03 406
7-Mar-03 406
8-Mar-03 155
9-Mar-03 250
10-Mar-03 433
11-Mar-03 639
12-Mar-03 984
13-Mar-03 1043
14-Mar-03 975
15-Mar-03 634
16-Mar-03 714
17-Mar-03 530
18-Mar-03 580
19-Mar-03 484
20-Mar-03 334
21-Mar-03 223
22-Mar-03 133
23-Mar-03 102
24-Mar-03 36
25-Mar-03 358
26-Mar-03 246
27-Mar-03 200
28-Mar-03 195
29-Mar-03 211
30-Mar-03 174
31-Mar-03 185
1-Apr-03 271
2-Apr-03 256
3-Apr-03 296
4-Apr-03 339
5-Apr-03 353
6-Apr-03 408
7-Apr-03 443
8-Apr-03 424
9-Apr-03 361
10-Apr-03 353
11-Apr-03 320
12-Apr-03 330
13-Apr-03 351
14-Apr-03 294
15-Apr-03 264
16-Apr-03 254