Site ID: 1220 Lat. -22.3678 Chile 0
River: Loa Long. -69.5972
Site name: 0 Contributing area: 14890 km2 Ratio to Comparison Station: 0.53
Latest measurement: 31-Jul-10 Mean annual runoff: 122 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 43.8 mm
Latest M/C ratio: 0.98 Seven day total: 1.7 mm
Estimated current discharge: 48 m3/sec Percent of mean 7-day total: 81.3 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 217 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 211 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
65 2002 no data no data no data no data no data no data no data 12.8 12.0 13.4 11.3 15.8
202 2003 10.7 12.3 14.3 17.5 22.5 19.7 19.6 18.5 21.6 21.8 13.2 10.8
225 2004 14.6 12.6 12.0 18.6 24.3 26.2 25.2 22.7 3.2 21.8 21.7 21.7
156 2005 2.1 12.6 18.4 10.8 13.2 23.5 22.3 16.8 15.2 14.9 3.9 2.4
53 2006 8.2 5.5 0.4 2.4 4.0 7.2 7.6 6.1 6.8 4.7 0.0 0.0
61 2007 1.0 2.8 2.0 5.0 5.4 4.0 8.6 6.6 8.5 5.6 6.8 4.8
76 2008 2.6 2.0 3.2 5.9 8.8 10.8 9.3 7.7 7.6 6.3 6.1 5.2
81 2009 2.3 2.1 4.6 6.9 9.3 11.0 12.6 9.4 5.7 5.3 5.3 6.8
44 2010 5.2 3.3 5.1 4.0 10.4 7.7 7.6 0.5 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 122 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 62
23-Jul-02 62
24-Jul-02 57
25-Jul-02 48
26-Jul-02 55
27-Jul-02 67
28-Jul-02 72
29-Jul-02 78
30-Jul-02 72
31-Jul-02 44
1-Aug-02 44
2-Aug-02
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 92
10-Aug-02 64
11-Aug-02 75
12-Aug-02 90
13-Aug-02 89
14-Aug-02 134
15-Aug-02 153
16-Aug-02 116
17-Aug-02 116
18-Aug-02 70
19-Aug-02 83
20-Aug-02 85
21-Aug-02 75
22-Aug-02 79
23-Aug-02 88
24-Aug-02 90
25-Aug-02 116
26-Aug-02 107
27-Aug-02 94
28-Aug-02 92
29-Aug-02 92
30-Aug-02 90
31-Aug-02 84
1-Sep-02 68
2-Sep-02 68
3-Sep-02 86
4-Sep-02 83
5-Sep-02 115
6-Sep-02 95
7-Sep-02 85
8-Sep-02 71
9-Sep-02 45
10-Sep-02 55
11-Sep-02 70
12-Sep-02 74
13-Sep-02 75
14-Sep-02 77
15-Sep-02 65
16-Sep-02 79
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 62
22-Sep-02 41
23-Sep-02 41
24-Sep-02 68
25-Sep-02 70
26-Sep-02 96
27-Sep-02 113
28-Sep-02 98
29-Sep-02 114
30-Sep-02 151
1-Oct-02 94
2-Oct-02 94
3-Oct-02 78
4-Oct-02 78
5-Oct-02 65
6-Oct-02 55
7-Oct-02 55
8-Oct-02 50
9-Oct-02 56
10-Oct-02 66
11-Oct-02 48
12-Oct-02 83
13-Oct-02 90
14-Oct-02 110
15-Oct-02 123
16-Oct-02 130
17-Oct-02 114
18-Oct-02 111
19-Oct-02 58
20-Oct-02 58
21-Oct-02 63
22-Oct-02 57
23-Oct-02 51
24-Oct-02 68
25-Oct-02 65
26-Oct-02 73
27-Oct-02 98
28-Oct-02 49
29-Oct-02 50
30-Oct-02 56
31-Oct-02 71
1-Nov-02 88
2-Nov-02 96
3-Nov-02 99
4-Nov-02 59
5-Nov-02 59
6-Nov-02 47
7-Nov-02 47
8-Nov-02 62
9-Nov-02 56
10-Nov-02 56
11-Nov-02 46
12-Nov-02 39
13-Nov-02 53
14-Nov-02 64
15-Nov-02 99
16-Nov-02 83
17-Nov-02 82
18-Nov-02 64
19-Nov-02 42
20-Nov-02 40
21-Nov-02 40
22-Nov-02 93
23-Nov-02 44
24-Nov-02 64
25-Nov-02 58
26-Nov-02 48
27-Nov-02 73
28-Nov-02 56
29-Nov-02 103
30-Nov-02 87
1-Dec-02 94
2-Dec-02 93
3-Dec-02 79
4-Dec-02 103
5-Dec-02 111
6-Dec-02 112
7-Dec-02 112
8-Dec-02 81
9-Dec-02 98
10-Dec-02 110
11-Dec-02 110
12-Dec-02 125
13-Dec-02 113
14-Dec-02 105
15-Dec-02 93
16-Dec-02 89
17-Dec-02 94
18-Dec-02 90
19-Dec-02 92
20-Dec-02 70
21-Dec-02 51
22-Dec-02 39
23-Dec-02 39
24-Dec-02 79
25-Dec-02 82
26-Dec-02 101
27-Dec-02 90
28-Dec-02 82
29-Dec-02 74
30-Dec-02 63
31-Dec-02 45
1-Jan-03 39
2-Jan-03 48
3-Jan-03 48
4-Jan-03 55
5-Jan-03 77
6-Jan-03 65
7-Jan-03 126
8-Jan-03 126
9-Jan-03 82
10-Jan-03 79
11-Jan-03 55
12-Jan-03 65
13-Jan-03 82
14-Jan-03 41
15-Jan-03 29
16-Jan-03 15
17-Jan-03 29
18-Jan-03 58
19-Jan-03 62
20-Jan-03 66
21-Jan-03 43
22-Jan-03 40
23-Jan-03 44
24-Jan-03 44
25-Jan-03 60
26-Jan-03 68
27-Jan-03 61
28-Jan-03 53
29-Jan-03 58
30-Jan-03 60
31-Jan-03 59
1-Feb-03 95
2-Feb-03 87
3-Feb-03 80
4-Feb-03 74
5-Feb-03 67
6-Feb-03 68
7-Feb-03 66
8-Feb-03 102
9-Feb-03 102
10-Feb-03 156
11-Feb-03 160
12-Feb-03 133
13-Feb-03 89
14-Feb-03 66
15-Feb-03 24
16-Feb-03 11
17-Feb-03 41
18-Feb-03 39
19-Feb-03 79
20-Feb-03 80
21-Feb-03 74
22-Feb-03 84
23-Feb-03 70
24-Feb-03 59
25-Feb-03 59
26-Feb-03 39
27-Feb-03 44
28-Feb-03 68
1-Mar-03 57
2-Mar-03 72
3-Mar-03 74
4-Mar-03 42
5-Mar-03 62
6-Mar-03 67
7-Mar-03 97
8-Mar-03 91
9-Mar-03 100
10-Mar-03 107
11-Mar-03 86
12-Mar-03 85
13-Mar-03 85
14-Mar-03 81
15-Mar-03 79
16-Mar-03 78
17-Mar-03 80
18-Mar-03 77
19-Mar-03 90
20-Mar-03 102
21-Mar-03 99
22-Mar-03 99