Site ID: 1218 Lat. -33.2829 Chile 0
River: Maipo Long. -70.7465
Site name: 0 Contributing area: 542 km2 Ratio to Comparison Station: 0.02
Latest measurement: 31-Jul-10 Mean annual runoff: 4615 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 4706.5 mm
Latest M/C ratio: 1.10 Seven day total: 256.1 mm
Estimated current discharge: 3 m3/sec Percent of mean 7-day total: 167.9 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 769 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 781 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
217 2002 no data no data no data no data no data no data no data 14.5 140.5 16.5 15.9 29.4
1798 2003 111.1 362.5 362.6 111.9 42.5 86.1 16.4 82.9 559.8 16.4 16.7 28.8
495 2004 122.8 107.0 77.3 38.4 16.4 15.4 16.4 16.4 2.1 15.4 15.9 51.8
3092 2005 22.3 93.1 369.8 42.9 84.1 159.7 60.4 350.6 524.2 620.4 203.9 560.9
5914 2006 678.2 375.6 136.5 616.4 622.6 489.4 654.7 861.2 1156.0 323.9 0.0 0.0
5331 2007 439.4 289.7 523.9 740.0 511.4 434.0 669.6 523.8 570.9 193.3 102.2 333.2
6368 2008 285.4 173.3 206.6 501.5 442.0 788.7 583.6 921.7 636.7 745.3 559.2 524.2
9306 2009 776.7 643.1 1106.7 693.2 634.0 794.4 1094.2 844.4 788.1 883.8 586.2 460.9
4707 2010 667.2 291.6 573.4 525.8 1065.5 550.4 1024.0 8.5 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 4615 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 3
28-Jul-02 3
29-Jul-02 3
30-Jul-02 3
31-Jul-02 3
1-Aug-02 3
2-Aug-02
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 3
10-Aug-02 3
11-Aug-02 3
12-Aug-02 3
13-Aug-02 3
14-Aug-02 3
15-Aug-02 14
16-Aug-02 3
17-Aug-02 3
18-Aug-02 3
19-Aug-02 3
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 3
27-Aug-02 3
28-Aug-02 3
29-Aug-02 3
30-Aug-02 3
31-Aug-02 3
1-Sep-02 3
2-Sep-02 27
3-Sep-02 3
4-Sep-02 3
5-Sep-02 3
6-Sep-02 3
7-Sep-02 3
8-Sep-02 3
9-Sep-02 30
10-Sep-02 3
11-Sep-02 3
12-Sep-02 3
13-Sep-02 3
14-Sep-02 3
15-Sep-02 3
16-Sep-02 190
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 3
22-Sep-02 3
23-Sep-02 3
24-Sep-02 3
25-Sep-02 30
26-Sep-02 95
27-Sep-02 175
28-Sep-02 121
29-Sep-02 134
30-Sep-02 23
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 3
8-Oct-02 3
9-Oct-02 3
10-Oct-02 3
11-Oct-02 3
12-Oct-02 3
13-Oct-02 3
14-Oct-02 3
15-Oct-02 3
16-Oct-02 3
17-Oct-02 3
18-Oct-02 3
19-Oct-02 3
20-Oct-02 4
21-Oct-02 3
22-Oct-02 3
23-Oct-02 3
24-Oct-02 3
25-Oct-02 3
26-Oct-02 3
27-Oct-02 3
28-Oct-02 3
29-Oct-02 3
30-Oct-02 3
31-Oct-02 3
1-Nov-02 3
2-Nov-02 3
3-Nov-02 3
4-Nov-02 3
5-Nov-02 3
6-Nov-02 3
7-Nov-02 3
8-Nov-02 3
9-Nov-02 3
10-Nov-02 3
11-Nov-02 3
12-Nov-02 3
13-Nov-02 3
14-Nov-02 3
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 3
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 3
7-Dec-02 3
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 85
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 3
23-Dec-02 3
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 3
3-Jan-03 3
4-Jan-03 3
5-Jan-03 3
6-Jan-03 3
7-Jan-03 3
8-Jan-03 3
9-Jan-03 21
10-Jan-03 3
11-Jan-03 3
12-Jan-03 3
13-Jan-03 3
14-Jan-03 44
15-Jan-03 159
16-Jan-03 21
17-Jan-03 21
18-Jan-03 3
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 60
27-Jan-03 45
28-Jan-03 32
29-Jan-03 23
30-Jan-03 39
31-Jan-03 165
1-Feb-03 362
2-Feb-03 370
3-Feb-03 143
4-Feb-03 146
5-Feb-03 3
6-Feb-03 38
7-Feb-03 99
8-Feb-03 3
9-Feb-03 10
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 20
22-Feb-03 150
23-Feb-03 267
24-Feb-03 316
25-Feb-03 281
26-Feb-03 3
27-Feb-03 20
28-Feb-03 3
1-Mar-03 41
2-Mar-03 72
3-Mar-03 147
4-Mar-03 288
5-Mar-03 139
6-Mar-03 139
7-Mar-03 74
8-Mar-03 60
9-Mar-03 105
10-Mar-03 81
11-Mar-03 41
12-Mar-03 36
13-Mar-03 12
14-Mar-03 113
15-Mar-03 45
16-Mar-03 54
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-03 128
27-Mar-03 323
28-Mar-03 165
29-Mar-03 174
30-Mar-03 3
31-Mar-03 3
1-Apr-03 3
2-Apr-03 3
3-Apr-03 3
4-Apr-03 3
5-Apr-03 173
6-Apr-03 124
7-Apr-03 124
8-Apr-03 3
9-Apr-03 3
10-Apr-03 3
11-Apr-03 3
12-Apr-03 3
13-Apr-03 7
14-Apr-03 110
15-Apr-03 83
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 3
1-May-03 3
2-May-03 3
3-May-03 3
4-May-03 3
5-May-03 3
6-May-03 3
7-May-03 103
8-May-03 3
9-May-03 3
10-May-03 3