Site ID: 808 Lat. -30.4876 Brazil 0
River: Santa Maria Long. -54.7138
Site name: 0 Contributing area: 4437 km2 Ratio to Comparison Station: 0.16
Latest measurement: 19-Jul-10 Mean annual runoff: 2653 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 1060.5 mm
Latest M/C ratio: 1.17 Seven day total: 27.2 mm
Estimated current discharge: 270 m3/sec Percent of mean 7-day total: 34.6 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 3160 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 3221 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
2527 2002 no data no data no data no data no data no data no data 403.6 365.2 818.4 310.2 629.7
3712 2003 187.7 218.4 290.0 78.9 435.9 484.8 345.0 268.8 195.9 313.8 332.6 560.3
1579 2004 118.7 35.5 19.9 22.1 161.4 150.1 112.4 159.7 137.5 162.0 313.2 186.3
2044 2005 39.7 4.7 3.1 42.1 270.0 117.2 181.9 173.4 491.4 517.8 122.4 80.2
899 2006 84.0 31.6 21.0 8.6 4.6 83.4 268.2 206.4 151.7 39.8 0.0 0.0
3407 2007 34.6 71.7 343.2 113.4 107.3 519.5 504.5 738.2 442.8 137.1 199.7 195.3
3278 2008 88.8 3.0 22.9 15.0 81.5 383.3 641.3 797.5 426.8 465.6 159.8 192.2
3655 2009 29.6 37.5 26.9 19.1 24.8 24.6 87.3 221.5 650.1 345.3 1383.2 805.2
1060 2010 313.7 188.0 52.3 76.1 97.4 165.9 167.1 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 2653 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 10
23-Jul-02 10
24-Jul-02 3
25-Jul-02 129
26-Jul-02 552
27-Jul-02 1128
28-Jul-02 1324
29-Jul-02 1469
30-Jul-02 1317
31-Jul-02 1446
1-Aug-02 1321
2-Aug-02 896
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-02 228
13-Aug-02 509
14-Aug-02 1107
15-Aug-02 1119
16-Aug-02 1132
17-Aug-02 905
18-Aug-02 855
19-Aug-02 569
20-Aug-02 569
21-Aug-02 467
22-Aug-02 639
23-Aug-02 997
24-Aug-02 1096
25-Aug-02 1361
26-Aug-02 1621
27-Aug-02 1595
28-Aug-02 1310
29-Aug-02 1330
30-Aug-02 473
31-Aug-02 618
1-Sep-02 548
2-Sep-02 313
3-Sep-02 740
4-Sep-02 643
5-Sep-02 643
6-Sep-02 703
7-Sep-02 706
8-Sep-02 663
9-Sep-02 634
10-Sep-02 658
11-Sep-02 584
12-Sep-02 514
13-Sep-02 60
14-Sep-02 60
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 1551
23-Sep-02 1705
24-Sep-02 1480
25-Sep-02 1457
26-Sep-02 1426
27-Sep-02 1051
28-Sep-02 1069
29-Sep-02 828
30-Sep-02 715
1-Oct-02 387
2-Oct-02 479
3-Oct-02 340
4-Oct-02 872
5-Oct-02 1452
6-Oct-02 1862
7-Oct-02 1862
8-Oct-02 1373
9-Oct-02 1785
10-Oct-02 1886
11-Oct-02 1998
12-Oct-02 2197
13-Oct-02 2102
14-Oct-02 2301
15-Oct-02 1916
16-Oct-02 1709
17-Oct-02 1291
18-Oct-02 1465
19-Oct-02 1443
20-Oct-02 1311
21-Oct-02 1432
22-Oct-02 1095
23-Oct-02 1095
24-Oct-02 1269
25-Oct-02 1209
26-Oct-02 958
27-Oct-02 1021
28-Oct-02 940
29-Oct-02 947
30-Oct-02 1160
31-Oct-02 870
1-Nov-02 705
2-Nov-02 516
3-Nov-02 461
4-Nov-02 396
5-Nov-02 470
6-Nov-02 458
7-Nov-02 626
8-Nov-02 626
9-Nov-02 305
10-Nov-02 305
11-Nov-02 409
12-Nov-02 516
13-Nov-02 624
14-Nov-02 476
15-Nov-02 457
16-Nov-02 205
17-Nov-02 171
18-Nov-02 149
19-Nov-02 183
20-Nov-02 172
21-Nov-02 291
22-Nov-02 371
23-Nov-02 1108
24-Nov-02 1108
25-Nov-02 1225
26-Nov-02 998
27-Nov-02 659
28-Nov-02 708
29-Nov-02 711
30-Nov-02 519
1-Dec-02 418
2-Dec-02 179
3-Dec-02 1542
4-Dec-02 2219
5-Dec-02 1931
6-Dec-02 2490
7-Dec-02 684
8-Dec-02 268
9-Dec-02 707
10-Dec-02 707
11-Dec-02 2152
12-Dec-02 2254
13-Dec-02 2155
14-Dec-02 1959
15-Dec-02 1864
16-Dec-02 1213
17-Dec-02 950
18-Dec-02 538
19-Dec-02 497
20-Dec-02 379
21-Dec-02 437
22-Dec-02 391
23-Dec-02 397
24-Dec-02 533
25-Dec-02 457
26-Dec-02 457
27-Dec-02 759
28-Dec-02 930
29-Dec-02 1032
30-Dec-02 940
31-Dec-02 898
1-Jan-03 692
2-Jan-03 645
3-Jan-03 215
4-Jan-03 310
5-Jan-03 313
6-Jan-03 278
7-Jan-03 299
8-Jan-03 277
9-Jan-03 258
10-Jan-03 275
11-Jan-03 275
12-Jan-03 401
13-Jan-03 433
14-Jan-03 532
15-Jan-03 515
16-Jan-03 492
17-Jan-03 384
18-Jan-03 323
19-Jan-03 173
20-Jan-03 205
21-Jan-03 196
22-Jan-03 293
23-Jan-03 352
24-Jan-03 179
25-Jan-03 245
26-Jan-03 178
27-Jan-03 3
28-Jan-03 269
29-Jan-03 240
30-Jan-03 196
31-Jan-03 195
1-Feb-03 180
2-Feb-03 210
3-Feb-03 233
4-Feb-03 333
5-Feb-03 401
6-Feb-03 425
7-Feb-03 259
8-Feb-03 184
9-Feb-03 337
10-Feb-03 332
11-Feb-03 829
12-Feb-03 856
13-Feb-03 522
14-Feb-03 429
15-Feb-03 279
16-Feb-03 276
17-Feb-03 246
18-Feb-03 208
19-Feb-03 204
20-Feb-03 172
21-Feb-03 348
22-Feb-03 699
23-Feb-03 577
24-Feb-03 862
25-Feb-03 733
26-Feb-03 452
27-Feb-03 324
28-Feb-03 306
1-Mar-03 199
2-Mar-03 390
3-Mar-03 499
4-Mar-03 822
5-Mar-03 1130
6-Mar-03 889
7-Mar-03 889
8-Mar-03 204
9-Mar-03 307
10-Mar-03 276
11-Mar-03 247
12-Mar-03 305
13-Mar-03 339
14-Mar-03 391
15-Mar-03 836
16-Mar-03 836
17-Mar-03 993
18-Mar-03 929
19-Mar-03 600
20-Mar-03 586
21-Mar-03 475
22-Mar-03 374
23-Mar-03 520
24-Mar-03 330
25-Mar-03 391
26-Mar-03 158
27-Mar-03 188
28-Mar-03 181
29-Mar-03 211
30-Mar-03 241
31-Mar-03 157
1-Apr-03 157
2-Apr-03 75
3-Apr-03 127
4-Apr-03 175
5-Apr-03 206
6-Apr-03 273
7-Apr-03 317
8-Apr-03 295
9-Apr-03 219
10-Apr-03 163
11-Apr-03 147
12-Apr-03 133
13-Apr-03 91
14-Apr-03 118
15-Apr-03 127
16-Apr-03 52