Site ID: 810 Lat. -30.5458 Brazil 0
River: Santa Maria Trib Long. -55.0373
Site name: 0 Contributing area: 4685 km2 Ratio to Comparison Station: 0.17
Latest measurement: 19-Jul-10 Mean annual runoff: 510 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 203.7 mm
Latest M/C ratio: 1.10 Seven day total: 28.8 mm
Estimated current discharge: 3 m3/sec Percent of mean 7-day total: 192.0 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 923 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 1163 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
762 2002 no data no data no data no data no data no data no data 127.6 79.7 252.3 92.1 210.4
769 2003 38.0 20.0 29.5 7.6 83.3 96.1 60.1 37.7 33.1 110.2 103.9 149.6
350 2004 26.0 1.8 1.9 2.5 5.1 28.3 13.2 26.9 62.1 42.0 112.4 27.9
429 2005 2.7 3.6 2.6 1.8 32.5 24.5 23.8 56.4 139.5 82.2 42.3 17.2
98 2006 5.7 1.7 26.1 1.8 1.9 2.0 24.7 5.0 26.5 2.5 0.0 0.0
542 2007 6.2 8.6 46.3 17.2 12.6 82.2 93.2 102.7 83.7 34.1 24.4 30.7
580 2008 5.8 1.8 8.1 1.8 1.9 64.1 156.7 95.4 73.4 128.5 25.5 17.4
799 2009 1.9 4.5 4.6 1.8 1.9 1.8 1.9 15.3 89.2 52.1 434.4 189.6
204 2010 78.1 29.6 8.5 3.0 11.5 25.5 47.5 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 510 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-02 373
28-Jul-02 407
29-Jul-02 405
30-Jul-02 373
31-Jul-02 397
1-Aug-02 361
2-Aug-02 277
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02
10-Aug-02 1028
11-Aug-02 1028
12-Aug-02 719
13-Aug-02 569
14-Aug-02 240
15-Aug-02 247
16-Aug-02 183
17-Aug-02 138
18-Aug-02 207
19-Aug-02 186
20-Aug-02 3
21-Aug-02 3
22-Aug-02 3
23-Aug-02 3
24-Aug-02 3
25-Aug-02 3
26-Aug-02 240
27-Aug-02 472
28-Aug-02 276
29-Aug-02 242
30-Aug-02 246
31-Aug-02 240
1-Sep-02 207
2-Sep-02 175
3-Sep-02 158
4-Sep-02 109
5-Sep-02 78
6-Sep-02 37
7-Sep-02 72
8-Sep-02 34
9-Sep-02 43
10-Sep-02 70
11-Sep-02 11
12-Sep-02 23
13-Sep-02 94
14-Sep-02 94
15-Sep-02 187
16-Sep-02 187
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 658
22-Sep-02 522
23-Sep-02 426
24-Sep-02 394
25-Sep-02 262
26-Sep-02 218
27-Sep-02 147
28-Sep-02 80
29-Sep-02 34
30-Sep-02 3
1-Oct-02 3
2-Oct-02 3
3-Oct-02 3
4-Oct-02 67
5-Oct-02 406
6-Oct-02 642
7-Oct-02 719
8-Oct-02 662
9-Oct-02 651
10-Oct-02 629
11-Oct-02 824
12-Oct-02 888
13-Oct-02 1115
14-Oct-02 1488
15-Oct-02 781
16-Oct-02 612
17-Oct-02 244
18-Oct-02 354
19-Oct-02 381
20-Oct-02 344
21-Oct-02 411
22-Oct-02 155
23-Oct-02 182
24-Oct-02 220
25-Oct-02 217
26-Oct-02 248
27-Oct-02 265
28-Oct-02 260
29-Oct-02 319
30-Oct-02 337
31-Oct-02 252
1-Nov-02 210
2-Nov-02 91
3-Nov-02 83
4-Nov-02 67
5-Nov-02 77
6-Nov-02 108
7-Nov-02 156
8-Nov-02 69
9-Nov-02 20
10-Nov-02 20
11-Nov-02 65
12-Nov-02 135
13-Nov-02 173
14-Nov-02 143
15-Nov-02 137
16-Nov-02 89
17-Nov-02 28
18-Nov-02 7
19-Nov-02 49
20-Nov-02 34
21-Nov-02 49
22-Nov-02 59
23-Nov-02 444
24-Nov-02 409
25-Nov-02 542
26-Nov-02 458
27-Nov-02 318
28-Nov-02 321
29-Nov-02 316
30-Nov-02 315
1-Dec-02 273
2-Dec-02 3
3-Dec-02 130
4-Dec-02 311
5-Dec-02 367
6-Dec-02 862
7-Dec-02 836
8-Dec-02 882
9-Dec-02 1238
10-Dec-02 1200
11-Dec-02 946
12-Dec-02 672
13-Dec-02 383
14-Dec-02 130
15-Dec-02 66
16-Dec-02 88
17-Dec-02 24
18-Dec-02 4
19-Dec-02 3
20-Dec-02 3
21-Dec-02 66
22-Dec-02 77
23-Dec-02 125
24-Dec-02 159
25-Dec-02 212
26-Dec-02 284
27-Dec-02 437
28-Dec-02 459
29-Dec-02 455
30-Dec-02 382
31-Dec-02 333
1-Jan-03 229
2-Jan-03 117
3-Jan-03 140
4-Jan-03 36
5-Jan-03 3
6-Jan-03 3
7-Jan-03 3
8-Jan-03 3
9-Jan-03 3
10-Jan-03 91
11-Jan-03 81
12-Jan-03 148
13-Jan-03 163
14-Jan-03 112
15-Jan-03 112
16-Jan-03 84
17-Jan-03 74
18-Jan-03 118
19-Jan-03 143
20-Jan-03 135
21-Jan-03 3
22-Jan-03 3
23-Jan-03 3
24-Jan-03 3
25-Jan-03 68
26-Jan-03 114
27-Jan-03 54
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 90
12-Feb-03 3
13-Feb-03 3
14-Feb-03 3
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 59
23-Feb-03 46
24-Feb-03 112
25-Feb-03 192
26-Feb-03 84
27-Feb-03 236
28-Feb-03 201
1-Mar-03 3
2-Mar-03 3
3-Mar-03 3
4-Mar-03 3
5-Mar-03 102
6-Mar-03 58
7-Mar-03 58
8-Mar-03 123
9-Mar-03 175
10-Mar-03 216
11-Mar-03 189
12-Mar-03 178
13-Mar-03 88
14-Mar-03 61
15-Mar-03 3
16-Mar-03 11
17-Mar-03 10
18-Mar-03 27
19-Mar-03 21
20-Mar-03 3
21-Mar-03 3
22-Mar-03 10
23-Mar-03 41
24-Mar-03 59
25-Mar-03 130
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 3
4-Apr-03 5
5-Apr-03 74
6-Apr-03 129
7-Apr-03 109
8-Apr-03 3
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 3
16-Apr-03 3
17-Apr-03 3
18-Apr-03 3
19-Apr-03 3
20-Apr-03 3
21-Apr-03 3
22-Apr-03 3
23-Apr-03 3
24-Apr-03 3
25-Apr-03 3
26-Apr-03 3
27-Apr-03 3
28-Apr-03 3
29-Apr-03 3
30-Apr-03 9
1-May-03 76
2-May-03 234
3-May-03 283
4-May-03 234
5-May-03 207
6-May-03 131
7-May-03 48