Site ID: 285 Lat. -15.3742 Zambia Western
River: Zambezi Long. 22.9925
Site name: Mongu Contributing area: 284539 km2 Ratio to Comparison Station: 0.53
Latest measurement: 29-Jul-10 Mean annual runoff: 215 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 264.8 mm
Latest M/C ratio: 1.30 Seven day total: 2.1 mm
Estimated current discharge: 791 m3/sec Percent of mean 7-day total: 188.6 % (today's value compared to mean for same period, 2003-2009)
Ice-cover determination: 5 yr recurrence flood: 9594 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 9389 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
11 2002 no data no data no data no data no data no data no data 2.5 1.4 2.0 2.2 2.6
194 2003 8.6 25.2 49.1 19.3 43.9 24.8 8.8 4.8 3.4 2.3 1.2 2.2
255 2004 3.9 38.2 51.1 66.7 54.1 21.7 6.6 3.7 2.3 2.4 1.8 2.9
140 2005 6.6 31.1 27.6 26.5 19.6 9.8 0.8 5.1 3.7 3.2 1.8 4.7
191 2006 1.7 6.5 48.9 60.9 41.8 15.2 6.2 4.3 2.9 2.6 0.0 0.0
264 2007 29.6 53.4 54.0 46.5 33.8 14.6 9.3 7.0 5.3 4.2 3.8 2.9
229 2008 11.6 49.9 50.8 45.0 32.0 12.0 7.2 5.3 4.4 3.8 3.9 3.6
231 2009 11.3 35.0 60.7 54.4 32.0 12.3 6.4 5.1 3.9 3.7 3.0 3.3
265 2010 19.9 42.4 61.1 57.6 49.0 22.3 12.2 0.3 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 215 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-02 759
23-Jul-02 759
24-Jul-02 829
25-Jul-02 799
26-Jul-02 610
27-Jul-02 696
28-Jul-02 625
29-Jul-02 569
30-Jul-02 625
31-Jul-02 525
1-Aug-02 466
2-Aug-02
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 272
10-Aug-02 272
11-Aug-02 194
12-Aug-02 336
13-Aug-02 429
14-Aug-02 490
15-Aug-02 650
16-Aug-02 563
17-Aug-02 639
18-Aug-02 321
19-Aug-02 321
20-Aug-02 168
21-Aug-02 233
22-Aug-02 322
23-Aug-02 370
24-Aug-02 424
25-Aug-02 350
26-Aug-02 288
27-Aug-02 302
28-Aug-02 328
29-Aug-02 243
30-Aug-02 173
31-Aug-02 62
1-Sep-02 96
2-Sep-02 243
3-Sep-02 221
4-Sep-02 221
5-Sep-02 64
6-Sep-02 200
7-Sep-02 357
8-Sep-02 212
9-Sep-02 208
10-Sep-02 167
11-Sep-02 189
12-Sep-02 325
13-Sep-02 325
14-Sep-02 192
15-Sep-02 192
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 133
22-Sep-02 256
23-Sep-02 284
24-Sep-02 173
25-Sep-02 188
26-Sep-02 3
27-Sep-02 3
28-Sep-02 3
29-Sep-02 3
30-Sep-02 286
1-Oct-02 286
2-Oct-02 286
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 62
11-Oct-02 313
12-Oct-02 304
13-Oct-02 331
14-Oct-02 123
15-Oct-02 215
16-Oct-02 321
17-Oct-02 346
18-Oct-02 479
19-Oct-02 489
20-Oct-02 478
21-Oct-02 419
22-Oct-02 419
23-Oct-02 280
24-Oct-02 374
25-Oct-02 483
26-Oct-02 146
27-Oct-02 146
28-Oct-02 3
29-Oct-02 3
30-Oct-02 120
31-Oct-02 163
1-Nov-02 174
2-Nov-02 243
3-Nov-02 314
4-Nov-02 265
5-Nov-02 265
6-Nov-02 73
7-Nov-02 73
8-Nov-02 3
9-Nov-02 74
10-Nov-02 195
11-Nov-02 238
12-Nov-02 360
13-Nov-02 213
14-Nov-02 190
15-Nov-02 21
16-Nov-02 274
17-Nov-02 393
18-Nov-02 296
19-Nov-02 369
20-Nov-02 174
21-Nov-02 47
22-Nov-02 239
23-Nov-02 239
24-Nov-02 225
25-Nov-02 408
26-Nov-02 380
27-Nov-02 413
28-Nov-02 677
29-Nov-02 229
30-Nov-02 241
1-Dec-02 3
2-Dec-02 3
3-Dec-02 3
4-Dec-02 98
5-Dec-02 98
6-Dec-02 100
7-Dec-02 265
8-Dec-02 78
9-Dec-02 78
10-Dec-02 3
11-Dec-02 160
12-Dec-02 299
13-Dec-02 291
14-Dec-02 441
15-Dec-02 498
16-Dec-02 524
17-Dec-02 341
18-Dec-02 287
19-Dec-02 207
20-Dec-02 253
21-Dec-02 339
22-Dec-02 395
23-Dec-02 385
24-Dec-02 362
25-Dec-02 362
26-Dec-02 452
27-Dec-02 433
28-Dec-02 468
29-Dec-02 457
30-Dec-02 457
31-Dec-02 497
1-Jan-03 400
2-Jan-03 226
3-Jan-03 242
4-Jan-03 193
5-Jan-03 316
6-Jan-03 340
7-Jan-03 511
8-Jan-03 715
9-Jan-03 728
10-Jan-03 728
11-Jan-03 517
12-Jan-03 644
13-Jan-03 626
14-Jan-03 912
15-Jan-03 1246
16-Jan-03 1058
17-Jan-03 1099
18-Jan-03 678
19-Jan-03 883
20-Jan-03 968
21-Jan-03 1225
22-Jan-03 1401
23-Jan-03 1324
24-Jan-03 1456
25-Jan-03 1015
26-Jan-03 1015
27-Jan-03 992
28-Jan-03 1384
29-Jan-03 1603
30-Jan-03 1765
31-Jan-03 2137
1-Feb-03 2066
2-Feb-03 2280
3-Feb-03 2794
4-Feb-03 1965
5-Feb-03 1929
6-Feb-03 2104
7-Feb-03 1862
8-Feb-03 2840
9-Feb-03 3337
10-Feb-03 2745
11-Feb-03 2745
12-Feb-03 2730
13-Feb-03 2660
14-Feb-03 3288
15-Feb-03 3109
16-Feb-03 2749
17-Feb-03 3173
18-Feb-03 3119
19-Feb-03 3161
20-Feb-03 3562
21-Feb-03 3627
22-Feb-03 3475
23-Feb-03 3647
24-Feb-03 3184
25-Feb-03 3070
26-Feb-03 3667
27-Feb-03 3667
28-Feb-03 4535
1-Mar-03 4509
2-Mar-03 3534
3-Mar-03 2539
4-Mar-03 1986
5-Mar-03 2954
6-Mar-03 3085
7-Mar-03 7615
8-Mar-03 6880
9-Mar-03 5620
10-Mar-03 5871
11-Mar-03 5871
12-Mar-03 5792
13-Mar-03 5993
14-Mar-03 5469