Site ID: 138 Lat. 8.6910 Colombia Bolivar
River: Cauca Long. -74.5192
Site name: Buenavista Contributing area: 61320 km2 Ratio to Comparison Station: 0.11
Latest measurement: 31-Jul-10 Mean annual runoff: 511 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 182.9 mm
Latest M/C ratio: 1.20 Seven day total: 9.3 mm
Estimated current discharge: 382 m3/sec Percent of mean 7-day total: 76.1 % (today's value compared to mean for same period, 2003-2009)
Ice-cover determination: 5 yr recurrence flood: 3988 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 3992 m3/sec (from Gumbel Extreme Value analysis)
Comparison Station Information:  Pakse (2469260)           Contributing Area:   sq mi 536010 sq km
(Data from this gaging station are used for the calibration to discharge, with an adjustment for different contributing areas)
Notes: Calibration to nearby ground station 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
272 2002 no data no data no data no data no data no data no data 42.7 29.0 46.4 77.4 76.7
518 2003 47.2 12.7 14.5 21.8 72.1 32.1 54.0 43.6 28.3 44.6 51.8 95.2
620 2004 98.4 47.9 25.2 22.8 37.0 67.3 45.3 32.9 36.5 34.6 73.5 99.0
492 2005 82.5 67.4 43.3 26.6 49.9 52.9 57.5 12.5 9.6 8.2 32.6 48.6
354 2006 19.5 23.7 14.0 32.9 43.9 43.3 58.7 49.2 43.8 24.9 0.0 0.0
426 2007 52.5 28.0 20.4 18.1 23.3 61.1 45.3 28.6 27.9 31.3 47.6 42.3
515 2008 58.0 34.6 41.8 44.0 36.1 51.4 54.8 39.6 30.7 22.4 40.7 60.6
652 2009 72.7 75.6 62.0 77.3 65.2 49.4 41.2 30.4 43.1 46.7 29.9 58.1
183 2010 45.7 20.4 16.2 13.3 16.1 26.5 42.6 2.1 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 511 Standard Deviation: 6.4
Trend in Annual Runoff (slope):  5.9
Discharge is estimated via a rating equation directly from the remote sensing data (M/C ratio) shown below.
Explanation:   Green line records upwelling microwave emission from within 5 km radius of a calbration land target; blue line is emission from within 5 km radious of the measurement target centered over the river.
Brown line is their ratio (M/C; 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. For calibration status, see "notes" entry, above.
GoogleEarth View of Measurement Site
Return
Estimated
Disharge
Data
Date m3/sec
22-Jul-02 1826
23-Jul-02 1826
24-Jul-02 1826
25-Jul-02 2938
26-Jul-02 2107
27-Jul-02 2370
28-Jul-02 2148
29-Jul-02 1889
30-Jul-02 2287
31-Jul-02 1577
1-Aug-02 1671
2-Aug-02 1671
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02
10-Aug-02 3548
11-Aug-02 1906
12-Aug-02 1784
13-Aug-02 1429
14-Aug-02 811
15-Aug-02 1288
16-Aug-02 1163
17-Aug-02 2308
18-Aug-02 2308
19-Aug-02 1673
20-Aug-02 391
21-Aug-02 3
22-Aug-02 119
23-Aug-02 3
24-Aug-02 919
25-Aug-02 919
26-Aug-02 1213
27-Aug-02 1084
28-Aug-02 1255
29-Aug-02 1112
30-Aug-02 875
31-Aug-02 855
1-Sep-02 875
2-Sep-02 1041
3-Sep-02 1041
4-Sep-02 1481
5-Sep-02 1515
6-Sep-02 1749
7-Sep-02 660
8-Sep-02 187
9-Sep-02 881
10-Sep-02 881
11-Sep-02 1762
12-Sep-02 1182
13-Sep-02 929
14-Sep-02 929
15-Sep-02 988
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 251
22-Sep-02 251
23-Sep-02 496
24-Sep-02 496
25-Sep-02 34
26-Sep-02 34
27-Sep-02 436
28-Sep-02 413
29-Sep-02 1087
30-Sep-02 976
1-Oct-02 751
2-Oct-02 776
3-Oct-02 584
4-Oct-02 1131
5-Oct-02 1131
6-Oct-02 1961
7-Oct-02 1787
8-Oct-02 1648
9-Oct-02 1474
10-Oct-02 1282
11-Oct-02 1232
12-Oct-02 1232
13-Oct-02 1404
14-Oct-02 3
15-Oct-02 3
16-Oct-02 80
17-Oct-02 3
18-Oct-02 1282
19-Oct-02 1504
20-Oct-02 1520
21-Oct-02 1520
22-Oct-02 2133
23-Oct-02 1073
24-Oct-02 563
25-Oct-02 645
26-Oct-02 111
27-Oct-02 1040
28-Oct-02 1040
29-Oct-02 1707
30-Oct-02 1099
31-Oct-02 1237
1-Nov-02 1020
2-Nov-02 654
3-Nov-02 933
4-Nov-02 591
5-Nov-02 1916
6-Nov-02 1916
7-Nov-02 3273
8-Nov-02 1253
9-Nov-02 3
10-Nov-02 1091
11-Nov-02 1091
12-Nov-02 1787
13-Nov-02 1787
14-Nov-02 1301
15-Nov-02 1185
16-Nov-02 1384
17-Nov-02 1959
18-Nov-02 2047
19-Nov-02 2974
20-Nov-02 3852
21-Nov-02 3286
22-Nov-02 3286
23-Nov-02 1799
24-Nov-02 1225
25-Nov-02 452
26-Nov-02 1284
27-Nov-02 1543
28-Nov-02 3317
29-Nov-02 3317
30-Nov-02 3375
1-Dec-02 2782
2-Dec-02 2304
3-Dec-02 2058
4-Dec-02 1678
5-Dec-02 1632
6-Dec-02 1434
7-Dec-02 2531
8-Dec-02 2531
9-Dec-02 3731
10-Dec-02 2421
11-Dec-02 1801
12-Dec-02 1476
13-Dec-02 570
14-Dec-02 2050
15-Dec-02 2050
16-Dec-02 2435
17-Dec-02 1715
18-Dec-02 920
19-Dec-02 798
20-Dec-02 584
21-Dec-02 601
22-Dec-02 494
23-Dec-02 1561
24-Dec-02 1561
25-Dec-02 2264
26-Dec-02 1993
27-Dec-02 1628
28-Dec-02 1578
29-Dec-02 1467
30-Dec-02 1885
31-Dec-02 1885
1-Jan-03 2395
2-Jan-03 1633
3-Jan-03 1080
4-Jan-03 1202
5-Jan-03 827
6-Jan-03 1052
7-Jan-03 1276
8-Jan-03 1000
9-Jan-03 1000
10-Jan-03 778
11-Jan-03 765
12-Jan-03 632
13-Jan-03 964
14-Jan-03 1193
15-Jan-03 1761
16-Jan-03 1761
17-Jan-03 1590
18-Jan-03 1093
19-Jan-03 1198
20-Jan-03 972
21-Jan-03 856
22-Jan-03 1259
23-Jan-03 833
24-Jan-03 889
25-Jan-03 889
26-Jan-03 709
27-Jan-03 819
28-Jan-03 1018
29-Jan-03 833
30-Jan-03 756
31-Jan-03 496
1-Feb-03 496
2-Feb-03 521
3-Feb-03 638
4-Feb-03 628
5-Feb-03 547
6-Feb-03 553
7-Feb-03 323
8-Feb-03 244
9-Feb-03 462
10-Feb-03 462
11-Feb-03 7
12-Feb-03 109
13-Feb-03 3
14-Feb-03 22
15-Feb-03 403
16-Feb-03 323
17-Feb-03 323
18-Feb-03 401
19-Feb-03 421
20-Feb-03 347
21-Feb-03 322
22-Feb-03 226
23-Feb-03 202
24-Feb-03 313
25-Feb-03 284
26-Feb-03 284
27-Feb-03 64
28-Feb-03 108
1-Mar-03 69
2-Mar-03 181
3-Mar-03 302
4-Mar-03 220
5-Mar-03 220
6-Mar-03 139
7-Mar-03 195
8-Mar-03 265
9-Mar-03 259
10-Mar-03 263
11-Mar-03 245
12-Mar-03 247
13-Mar-03 314
14-Mar-03 314
15-Mar-03 343
16-Mar-03 288
17-Mar-03 245
18-Mar-03 183
19-Mar-03 125
20-Mar-03 150
21-Mar-03 466
22-Mar-03 472
23-Mar-03 416
24-Mar-03 366
25-Mar-03 649
26-Mar-03 876
27-Mar-03 819
28-Mar-03 1188
29-Mar-03 117
30-Mar-03 117