Site ID: 1259 Lat. -26.9312 South Africa Kwa Zulu/Natal
River: Maputo Long. 32.3257
Site name: Catuane Contributing area: 28645 km2 Ratio to Comparison Station: 1.01
Latest measurement: 30-Jul-10 Mean annual runoff: 212 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 218.3 mm
Latest M/C ratio: 1.03 Seven day total: 3.6 mm
Estimated current discharge: 129 m3/sec Percent of mean 7-day total: 140.7 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 1742 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 1717 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
56 2002 no data no data no data no data no data no data no data 8.6 11.9 10.0 12.8 12.7
95 2003 10.2 11.3 8.6 5.8 5.4 5.6 7.9 6.7 5.9 7.9 9.5 9.8
117 2004 13.9 14.4 16.1 8.9 9.6 8.3 6.5 7.7 6.4 6.9 8.0 9.8
226 2005 8.1 21.4 17.0 27.4 20.9 9.7 0.9 13.7 14.3 27.5 26.8 38.7
239 2006 19.0 35.5 44.3 28.3 22.9 14.9 15.2 10.1 15.6 32.9 0.0 0.0
285 2007 42.4 23.2 15.7 27.2 13.5 12.8 11.5 13.4 11.8 41.4 48.3 23.9
226 2008 25.5 17.4 20.0 19.5 16.6 14.9 14.1 13.1 11.6 26.2 28.3 18.6
295 2009 18.7 26.9 37.0 21.6 19.9 15.6 13.0 15.9 14.0 16.7 50.2 45.5
218 2010 39.1 60.9 36.4 30.2 20.2 15.5 15.4 0.5 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 212 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-02 184
23-Jul-02 184
24-Jul-02 266
25-Jul-02 380
26-Jul-02 380
27-Jul-02 520
28-Jul-02 463
29-Jul-02 283
30-Jul-02 283
31-Jul-02 217
1-Aug-02 110
2-Aug-02
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02
10-Aug-02 331
11-Aug-02 331
12-Aug-02 160
13-Aug-02 142
14-Aug-02 62
15-Aug-02 77
16-Aug-02 86
17-Aug-02 106
18-Aug-02 164
19-Aug-02 124
20-Aug-02 124
21-Aug-02 85
22-Aug-02 82
23-Aug-02 82
24-Aug-02 51
25-Aug-02 46
26-Aug-02 78
27-Aug-02 111
28-Aug-02 167
29-Aug-02 177
30-Aug-02 94
31-Aug-02 75
1-Sep-02 72
2-Sep-02 78
3-Sep-02 179
4-Sep-02 228
5-Sep-02 185
6-Sep-02 120
7-Sep-02 132
8-Sep-02 98
9-Sep-02 119
10-Sep-02 180
11-Sep-02 205
12-Sep-02 205
13-Sep-02 221
14-Sep-02 221
15-Sep-02
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 290
22-Sep-02 206
23-Sep-02 218
24-Sep-02 218
25-Sep-02 149
26-Sep-02 156
27-Sep-02 114
28-Sep-02 114
29-Sep-02 131
30-Sep-02 122
1-Oct-02 72
2-Oct-02 91
3-Oct-02 83
4-Oct-02 127
5-Oct-02 217
6-Oct-02 140
7-Oct-02 133
8-Oct-02 60
9-Oct-02 62
10-Oct-02 68
11-Oct-02 40
12-Oct-02 42
13-Oct-02 82
14-Oct-02 82
15-Oct-02 137
16-Oct-02 151
17-Oct-02 107
18-Oct-02 124
19-Oct-02 138
20-Oct-02 74
21-Oct-02 76
22-Oct-02 86
23-Oct-02 98
24-Oct-02 111
25-Oct-02 95
26-Oct-02 67
27-Oct-02 98
28-Oct-02 142
29-Oct-02 156
30-Oct-02 156
31-Oct-02 204
1-Nov-02 204
2-Nov-02 175
3-Nov-02 135
4-Nov-02 65
5-Nov-02 89
6-Nov-02 114
7-Nov-02 98
8-Nov-02 102
9-Nov-02 65
10-Nov-02 64
11-Nov-02 67
12-Nov-02 89
13-Nov-02 124
14-Nov-02 181
15-Nov-02 339
16-Nov-02 341
17-Nov-02 349
18-Nov-02 221
19-Nov-02 168
20-Nov-02 193
21-Nov-02 115
22-Nov-02 199
23-Nov-02 94
24-Nov-02 95
25-Nov-02 77
26-Nov-02 76
27-Nov-02 69
28-Nov-02 94
29-Nov-02 130
30-Nov-02 119
1-Dec-02 119
2-Dec-02 45
3-Dec-02 63
4-Dec-02 54
5-Dec-02 61
6-Dec-02 71
7-Dec-02 32
8-Dec-02 31
9-Dec-02 25
10-Dec-02 54
11-Dec-02 76
12-Dec-02 83
13-Dec-02 93
14-Dec-02 165
15-Dec-02 259
16-Dec-02 279
17-Dec-02 279
18-Dec-02 167
19-Dec-02 129
20-Dec-02 118
21-Dec-02 119
22-Dec-02 94
23-Dec-02 118
24-Dec-02 131
25-Dec-02 197
26-Dec-02 239
27-Dec-02 270
28-Dec-02 245
29-Dec-02 240
30-Dec-02 189
31-Dec-02 174
1-Jan-03 173
2-Jan-03 173
3-Jan-03 123
4-Jan-03 160
5-Jan-03 147
6-Jan-03 151
7-Jan-03 162
8-Jan-03 136
9-Jan-03 143
10-Jan-03 101
11-Jan-03 81
12-Jan-03 68
13-Jan-03 109
14-Jan-03 119
15-Jan-03 125
16-Jan-03 160
17-Jan-03 67
18-Jan-03 67
19-Jan-03 69
20-Jan-03 77
21-Jan-03 38
22-Jan-03 61
23-Jan-03 63
24-Jan-03 54
25-Jan-03 110
26-Jan-03 52
27-Jan-03 80
28-Jan-03 116
29-Jan-03 117
30-Jan-03 152
31-Jan-03 127
1-Feb-03 105
2-Feb-03 123
3-Feb-03 123
4-Feb-03 108
5-Feb-03 101
6-Feb-03 19
7-Feb-03 19
8-Feb-03 19
9-Feb-03 19
10-Feb-03 374
11-Feb-03 207
12-Feb-03 220
13-Feb-03 103
14-Feb-03 103
15-Feb-03 102
16-Feb-03 94
17-Feb-03 154
18-Feb-03 205
19-Feb-03 205
20-Feb-03 198
21-Feb-03 165
22-Feb-03 173
23-Feb-03 178
24-Feb-03 167
25-Feb-03 163
26-Feb-03 138
27-Feb-03 71
28-Feb-03 96
1-Mar-03 104
2-Mar-03 103
3-Mar-03 122
4-Mar-03 138
5-Mar-03 153
6-Mar-03 163
7-Mar-03 163
8-Mar-03 108
9-Mar-03 127
10-Mar-03 109
11-Mar-03 111
12-Mar-03 114
13-Mar-03 68
14-Mar-03 69
15-Mar-03 71
16-Mar-03