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Site ID: 1212 Lat. -37.5380 Chile 0
River: Bio Bio Long. -72.5937
Site name: 0 Contributing area: 11100 km2 Ratio to Comparison Station: 0.39
Latest measurement: 31-Jul-10 Mean annual runoff: 115 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 18.0 mm
Latest M/C ratio: 1.10 Seven day total: 0.2 mm
Estimated current discharge: 3 m3/sec Percent of mean 7-day total: 5.2 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 648 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 632 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
111 2002 no data no data no data no data no data no data no data 34.5 33.2 30.1 10.9 2.2
175 2003 3.3 3.4 3.6 8.1 5.6 34.7 49.7 26.1 14.8 19.8 5.0 1.0
213 2004 2.3 19.5 10.2 9.0 26.1 27.8 52.5 43.0 6.4 10.5 2.9 2.5
170 2005 6.2 25.0 2.5 1.0 1.1 50.2 72.9 2.4 3.9 0.8 2.7 1.2
74 2006 2.3 1.0 0.6 2.2 2.0 0.9 26.3 18.7 16.0 4.3 0.0 0.0
39 2007 5.6 4.8 3.0 1.6 0.8 1.0 7.1 6.5 1.4 1.1 2.5 3.7
79 2008 1.4 0.8 1.2 1.1 13.3 5.9 8.3 14.0 11.3 6.1 3.8 11.7
59 2009 1.4 0.7 1.7 0.8 5.3 4.9 15.7 9.3 11.3 3.0 3.5 0.9
18 2010 2.9 1.4 8.2 0.8 0.9 1.7 1.9 0.1 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 115 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-02 348
23-Jul-02 348
24-Jul-02 406
25-Jul-02 186
26-Jul-02 209
27-Jul-02 35
28-Jul-02 85
29-Jul-02 96
30-Jul-02 46
31-Jul-02 314
1-Aug-02 340
2-Aug-02
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 99
10-Aug-02 218
11-Aug-02 181
12-Aug-02 228
13-Aug-02 299
14-Aug-02 273
15-Aug-02 332
16-Aug-02 252
17-Aug-02 196
18-Aug-02 161
19-Aug-02 120
20-Aug-02 159
21-Aug-02 130
22-Aug-02 126
23-Aug-02 74
24-Aug-02 8
25-Aug-02 3
26-Aug-02 3
27-Aug-02 3
28-Aug-02 13
29-Aug-02 453
30-Aug-02 300
31-Aug-02 461
1-Sep-02 455
2-Sep-02 281
3-Sep-02 370
4-Sep-02 331
5-Sep-02 97
6-Sep-02 126
7-Sep-02 55
8-Sep-02 8
9-Sep-02 121
10-Sep-02 144
11-Sep-02 42
12-Sep-02 135
13-Sep-02 140
14-Sep-02 88
15-Sep-02 234
16-Sep-02 154
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 233
22-Sep-02 326
23-Sep-02 327
24-Sep-02 252
25-Sep-02 281
26-Sep-02 50
27-Sep-02 3
28-Sep-02 3
29-Sep-02 3
30-Sep-02 3
1-Oct-02 3
2-Oct-02 3
3-Oct-02 3
4-Oct-02 3
5-Oct-02 3
6-Oct-02 3
7-Oct-02 190
8-Oct-02 206
9-Oct-02 323
10-Oct-02 299
11-Oct-02 314
12-Oct-02 256
13-Oct-02 237
14-Oct-02 3
15-Oct-02 3
16-Oct-02 3
17-Oct-02 3
18-Oct-02 184
19-Oct-02 252
20-Oct-02 144
21-Oct-02 142
22-Oct-02 157
23-Oct-02 130
24-Oct-02 124
25-Oct-02 212
26-Oct-02 117
27-Oct-02 128
28-Oct-02 225
29-Oct-02 57
30-Oct-02 50
31-Oct-02 88
1-Nov-02 14
2-Nov-02 22
3-Nov-02 24
4-Nov-02 3
5-Nov-02 3
6-Nov-02 3
7-Nov-02 3
8-Nov-02 84
9-Nov-02 202
10-Nov-02 202
11-Nov-02 216
12-Nov-02 280
13-Nov-02 140
14-Nov-02 102
15-Nov-02 3
16-Nov-02 3
17-Nov-02 3
18-Nov-02 3
19-Nov-02 3
20-Nov-02 3
21-Nov-02 3
22-Nov-02 3
23-Nov-02 3
24-Nov-02 3
25-Nov-02 3
26-Nov-02 51
27-Nov-02 3
28-Nov-02 3
29-Nov-02 3
30-Nov-02 3
1-Dec-02 3
2-Dec-02 3
3-Dec-02 3
4-Dec-02 3
5-Dec-02 3
6-Dec-02 32
7-Dec-02 62
8-Dec-02 3
9-Dec-02 3
10-Dec-02 3
11-Dec-02 3
12-Dec-02 3
13-Dec-02 3
14-Dec-02 3
15-Dec-02 3
16-Dec-02 3
17-Dec-02 3
18-Dec-02 3
19-Dec-02 3
20-Dec-02 3
21-Dec-02 3
22-Dec-02 30
23-Dec-02 69
24-Dec-02 3
25-Dec-02 3
26-Dec-02 3
27-Dec-02 3
28-Dec-02 3
29-Dec-02 3
30-Dec-02 3
31-Dec-02 3
1-Jan-03 3
2-Jan-03 25
3-Jan-03 36
4-Jan-03 31
5-Jan-03 3
6-Jan-03 3
7-Jan-03 3
8-Jan-03 3
9-Jan-03 61
10-Jan-03 51
11-Jan-03 59
12-Jan-03 12
13-Jan-03 3
14-Jan-03 3
15-Jan-03 3
16-Jan-03 3
17-Jan-03 51
18-Jan-03 5
19-Jan-03 3
20-Jan-03 3
21-Jan-03 3
22-Jan-03 3
23-Jan-03 3
24-Jan-03 3
25-Jan-03 3
26-Jan-03 3
27-Jan-03 3
28-Jan-03 18
29-Jan-03 11
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 3
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 3
23-Feb-03 3
24-Feb-03 3
25-Feb-03 34
26-Feb-03 125
27-Feb-03 104
28-Feb-03 92
1-Mar-03 20
2-Mar-03 3
3-Mar-03 3
4-Mar-03 3
5-Mar-03 3
6-Mar-03 3
7-Mar-03 3
8-Mar-03 3
9-Mar-03 3
10-Mar-03 11
11-Mar-03 25
12-Mar-03 73
13-Mar-03 57
14-Mar-03 3
15-Mar-03 3
16-Mar-03 3
17-Mar-03 3
18-Mar-03 3
19-Mar-03 3
20-Mar-03 3
21-Mar-03 3
22-Mar-03 3
23-Mar-03 3
24-Mar-03 3
25-Mar-03 3
26-Mar-03 3
27-Mar-03 3
28-Mar-03 3
29-Mar-03 3
30-Mar-03 65
31-Mar-03 130
1-Apr-03 169
2-Apr-03 135
3-Apr-03 142
4-Apr-03 66
5-Apr-03 58
6-Apr-03 3
7-Apr-03 3
8-Apr-03 21
9-Apr-03 12
10-Apr-03 3
11-Apr-03 3
12-Apr-03 3
13-Apr-03 3
14-Apr-03 3
15-Apr-03 128
16-Apr-03 132
17-Apr-03 3
18-Apr-03 4
19-Apr-03 43
20-Apr-03 3
21-Apr-03 71
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 3
1-May-03 39
2-May-03 3
3-May-03 3
4-May-03 3
5-May-03 3
6-May-03 3
7-May-03 3
8-May-03 21
9-May-03 5
10-May-03 21
11-May-03 37
12-May-03 19
13-May-03 84
14-May-03 109
15-May-03 54
16-May-03 78
17-May-03 3
18-May-03 3
19-May-03 3
20-May-03 3
21-May-03 109
22-May-03 3
23-May-03 3
24-May-03 3
25-May-03 3
26-May-03 26
27-May-03 19
28-May-03 12
29-May-03 15
30-May-03 3
31-May-03 17