Site ID: 101 Lat. -11.3619 Zambia Northern
River: Chambeshi Long. 30.5894
Site name: Munyanga Contributing area: 54360 km2 Ratio to Comparison Station: 0.10
Latest measurement: 30-Jul-10 Mean annual runoff: 311 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 406.3 mm
Latest M/C ratio: 1.18 Seven day total: 6.1 mm
Estimated current discharge: 307 m3/sec Percent of mean 7-day total: 141.1 % (today's value compared to mean for same period, 2003-2009)
Ice-cover determination: 5 yr recurrence flood: 2669 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 2556 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
52 2002 no data no data no data no data no data no data no data 9.8 9.6 16.0 12.5 4.2
157 2003 9.1 9.7 19.3 32.2 13.5 11.5 10.0 11.5 13.4 12.4 9.2 5.6
88 2004 6.6 8.2 10.9 10.2 5.0 2.4 3.2 5.6 8.3 14.8 5.9 6.4
317 2005 28.6 23.6 43.2 56.6 31.5 25.7 1.2 25.2 24.5 28.3 17.3 11.6
259 2006 6.9 15.8 65.1 46.0 22.5 17.3 19.6 17.4 22.1 25.9 0.0 0.0
497 2007 44.7 89.6 113.2 66.8 33.0 28.0 28.2 27.6 24.1 19.7 15.1 7.3
404 2008 18.7 65.8 85.9 63.0 28.2 23.5 25.3 26.7 25.6 18.5 12.2 10.6
458 2009 24.8 58.8 88.4 80.4 38.8 27.0 23.9 26.3 24.9 28.1 14.4 21.9
406 2010 65.9 53.1 111.5 79.4 39.2 30.2 27.1 0.1 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 311 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-02 428
23-Jul-02 428
24-Jul-02 448
25-Jul-02 248
26-Jul-02 253
27-Jul-02 182
28-Jul-02 188
29-Jul-02 386
30-Jul-02 509
31-Jul-02 509
1-Aug-02
2-Aug-02
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 256
10-Aug-02 56
11-Aug-02 133
12-Aug-02 133
13-Aug-02 159
14-Aug-02 320
15-Aug-02 344
16-Aug-02 344
17-Aug-02 297
18-Aug-02 345
19-Aug-02 346
20-Aug-02 272
21-Aug-02 281
22-Aug-02 58
23-Aug-02 58
24-Aug-02 75
25-Aug-02 181
26-Aug-02 341
27-Aug-02 320
28-Aug-02 365
29-Aug-02 453
30-Aug-02 466
31-Aug-02 577
1-Sep-02 577
2-Sep-02 313
3-Sep-02 263
4-Sep-02 136
5-Sep-02 239
6-Sep-02 308
7-Sep-02 473
8-Sep-02 473
9-Sep-02 225
10-Sep-02 242
11-Sep-02 5
12-Sep-02 42
13-Sep-02 66
14-Sep-02 3
15-Sep-02 160
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 383
22-Sep-02 383
23-Sep-02 243
24-Sep-02 243
25-Sep-02 53
26-Sep-02 212
27-Sep-02 217
28-Sep-02 217
29-Sep-02 325
30-Sep-02 235
1-Oct-02 355
2-Oct-02 360
3-Oct-02 360
4-Oct-02 150
5-Oct-02 298
6-Oct-02 266
7-Oct-02 369
8-Oct-02 596
9-Oct-02 472
10-Oct-02 472
11-Oct-02 204
12-Oct-02 272
13-Oct-02 91
14-Oct-02 143
15-Oct-02 172
16-Oct-02 190
17-Oct-02 381
18-Oct-02 441
19-Oct-02 441
20-Oct-02 477
21-Oct-02 399
22-Oct-02 385
23-Oct-02 429
24-Oct-02 379
25-Oct-02 253
26-Oct-02 253
27-Oct-02 251
28-Oct-02 268
29-Oct-02 317
30-Oct-02 331
31-Oct-02 272
1-Nov-02 256
2-Nov-02 374
3-Nov-02 432
4-Nov-02 432
5-Nov-02 211
6-Nov-02 187
7-Nov-02 80
8-Nov-02 241
9-Nov-02 359
10-Nov-02 476
11-Nov-02 476
12-Nov-02 108
13-Nov-02 165
14-Nov-02 3
15-Nov-02 54
16-Nov-02 121
17-Nov-02 89
18-Nov-02 252
19-Nov-02 269
20-Nov-02 269
21-Nov-02 297
22-Nov-02 389
23-Nov-02 407
24-Nov-02 375
25-Nov-02 444
26-Nov-02 393
27-Nov-02 393
28-Nov-02 210
29-Nov-02 91
30-Nov-02 3
1-Dec-02 3
2-Dec-02 3
3-Dec-02 146
4-Dec-02 155
5-Dec-02 147
6-Dec-02 147
7-Dec-02 106
8-Dec-02 177
9-Dec-02 196
10-Dec-02 155
11-Dec-02 193
12-Dec-02 51
13-Dec-02 51
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 74
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 28
28-Dec-02 181
29-Dec-02 181
30-Dec-02 295
31-Dec-02 295
1-Jan-03 252
2-Jan-03 278
3-Jan-03 304
4-Jan-03 351
5-Jan-03 351
6-Jan-03 412
7-Jan-03 412
8-Jan-03 241
9-Jan-03 233
10-Jan-03 140
11-Jan-03 261
12-Jan-03 364
13-Jan-03 3
14-Jan-03 3
15-Jan-03 3
16-Jan-03 3
17-Jan-03 82
18-Jan-03 86
19-Jan-03 201
20-Jan-03 3
21-Jan-03 3
22-Jan-03 3
23-Jan-03 3
24-Jan-03 31
25-Jan-03 3
26-Jan-03 3
27-Jan-03 100
28-Jan-03 118
29-Jan-03 550
30-Jan-03 550
31-Jan-03 385
1-Feb-03 385
2-Feb-03 3
3-Feb-03 260
4-Feb-03 275
5-Feb-03 203
6-Feb-03 438
7-Feb-03 62
8-Feb-03 62
9-Feb-03 3
10-Feb-03 3
11-Feb-03 3
12-Feb-03 3
13-Feb-03 112
14-Feb-03 3
15-Feb-03 3
16-Feb-03 3
17-Feb-03 151
18-Feb-03 154
19-Feb-03 294
20-Feb-03 450
21-Feb-03 280
22-Feb-03 391
23-Feb-03 145
24-Feb-03 145
25-Feb-03 303
26-Feb-03 558
27-Feb-03 738
28-Feb-03 647
1-Mar-03 774
2-Mar-03 562
3-Mar-03 562
4-Mar-03 549
5-Mar-03 484
6-Mar-03 186
7-Mar-03 186
8-Mar-03 54
9-Mar-03 118
10-Mar-03 465
11-Mar-03 244
12-Mar-03 244
13-Mar-03 65
14-Mar-03 249
15-Mar-03 364
16-Mar-03 524
17-Mar-03 744
18-Mar-03 635
19-Mar-03 635
20-Mar-03 38
21-Mar-03 158
22-Mar-03 3
23-Mar-03 120
24-Mar-03 270
25-Mar-03 442
26-Mar-03 797
27-Mar-03 892
28-Mar-03 892
29-Mar-03 299
30-Mar-03 384
31-Mar-03 180
1-Apr-03 180
2-Apr-03 555