<
Site ID: 1262 Lat. -24.2209 Mozambique Gaza
River: Changane Long. 33.6890
Site name: Vila Gomes da Costa Contributing area: 45585 km2 Ratio to Comparison Station: 1.61
Latest measurement: 30-Jul-10 Mean annual runoff: 129 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 116.6 mm
Latest M/C ratio: 1.04 Seven day total: 3.5 mm
Estimated current discharge: 304 m3/sec Percent of mean 7-day total: 149.5 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 1183 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 1181 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
29 2002 no data no data no data no data no data no data no data 5.5 5.5 5.6 5.8 6.6
85 2003 5.4 7.3 8.2 5.5 8.0 7.0 8.2 8.5 7.3 10.4 3.6 6.0
104 2004 13.5 7.3 7.9 9.2 8.7 8.9 7.4 10.5 8.7 7.5 6.2 8.6
110 2005 7.8 4.1 7.6 9.1 12.3 8.8 1.4 9.3 13.1 12.7 14.1 9.9
177 2006 28.9 19.5 16.7 23.9 19.6 16.4 18.0 13.7 9.8 10.9 0.0 0.0
149 2007 18.5 11.1 13.8 16.1 11.7 12.2 10.6 11.8 10.0 9.4 10.1 14.0
137 2008 13.4 9.8 11.1 10.4 10.3 11.0 13.8 11.1 10.0 10.6 12.0 13.2
142 2009 14.3 11.7 13.3 11.8 11.8 12.2 13.8 12.3 9.4 10.0 11.0 10.7
117 2010 11.3 14.3 17.8 19.9 21.6 16.5 13.9 1.3 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 129 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-02 137
23-Jul-02 137
24-Jul-02 112
25-Jul-02 107
26-Jul-02 107
27-Jul-02 104
28-Jul-02 129
29-Jul-02 154
30-Jul-02 154
31-Jul-02 182
1-Aug-02 174
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-02 122
11-Aug-02 122
12-Aug-02 102
13-Aug-02 113
14-Aug-02 117
15-Aug-02 119
16-Aug-02 133
17-Aug-02 111
18-Aug-02 99
19-Aug-02 96
20-Aug-02 116
21-Aug-02 133
22-Aug-02 139
23-Aug-02 147
24-Aug-02 117
25-Aug-02 114
26-Aug-02 149
27-Aug-02 149
28-Aug-02 170
29-Aug-02 137
30-Aug-02 99
31-Aug-02 102
1-Sep-02 101
2-Sep-02 117
3-Sep-02 119
4-Sep-02 112
5-Sep-02 115
6-Sep-02 121
7-Sep-02 96
8-Sep-02 95
9-Sep-02 96
10-Sep-02 74
11-Sep-02 136
12-Sep-02 136
13-Sep-02 148
14-Sep-02 148
15-Sep-02
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 207
22-Sep-02 142
23-Sep-02 145
24-Sep-02 145
25-Sep-02 96
26-Sep-02 102
27-Sep-02 79
28-Sep-02 79
29-Sep-02 115
30-Sep-02 184
1-Oct-02 200
2-Oct-02 180
3-Oct-02 200
4-Oct-02 112
5-Oct-02 97
6-Oct-02 56
7-Oct-02 67
8-Oct-02 67
9-Oct-02 69
10-Oct-02 80
11-Oct-02 90
12-Oct-02 97
13-Oct-02 118
14-Oct-02 118
15-Oct-02 119
16-Oct-02 131
17-Oct-02 91
18-Oct-02 88
19-Oct-02 79
20-Oct-02 64
21-Oct-02 96
22-Oct-02 85
23-Oct-02 83
24-Oct-02 41
25-Oct-02 60
26-Oct-02 60
27-Oct-02 53
28-Oct-02 90
29-Oct-02 95
30-Oct-02 95
31-Oct-02 71
1-Nov-02 71
2-Nov-02 47
3-Nov-02 110
4-Nov-02 165
5-Nov-02 152
6-Nov-02 200
7-Nov-02 82
8-Nov-02 82
9-Nov-02 40
10-Nov-02 40
11-Nov-02 40
12-Nov-02 40
13-Nov-02 40
14-Nov-02 99
15-Nov-02 99
16-Nov-02 176
17-Nov-02 170
18-Nov-02 148
19-Nov-02 131
20-Nov-02 129
21-Nov-02 107
22-Nov-02 90
23-Nov-02 71
24-Nov-02 91
25-Nov-02 69
26-Nov-02 86
27-Nov-02 98
28-Nov-02 115
29-Nov-02 164
30-Nov-02 129
1-Dec-02 129
2-Dec-02 60
3-Dec-02 79
4-Dec-02 70
5-Dec-02 84
6-Dec-02 95
7-Dec-02 112
8-Dec-02 153
9-Dec-02 179
10-Dec-02 170
11-Dec-02 159
12-Dec-02 145
13-Dec-02 133
14-Dec-02 106
15-Dec-02 90
16-Dec-02 77
17-Dec-02 77
18-Dec-02 54
19-Dec-02 60
20-Dec-02 55
21-Dec-02 95
22-Dec-02 121
23-Dec-02 123
24-Dec-02 151
25-Dec-02 109
26-Dec-02 133
27-Dec-02 156
28-Dec-02 145
29-Dec-02 146
30-Dec-02 123
31-Dec-02 115
1-Jan-03 115
2-Jan-03 115
3-Jan-03 77
4-Jan-03 63
5-Jan-03 97
6-Jan-03 89
7-Jan-03 92
8-Jan-03 126
9-Jan-03 104
10-Jan-03 222
11-Jan-03 167
12-Jan-03 140
13-Jan-03 125
14-Jan-03 81
15-Jan-03 74
16-Jan-03 72
17-Jan-03 52
18-Jan-03 52
19-Jan-03 40
20-Jan-03 40
21-Jan-03 40
22-Jan-03 61
23-Jan-03 73
24-Jan-03 81
25-Jan-03 86
26-Jan-03 44
27-Jan-03 69
28-Jan-03 103
29-Jan-03 108
30-Jan-03 131
31-Jan-03 113
1-Feb-03 99
2-Feb-03 76
3-Feb-03 76
4-Feb-03 63
5-Feb-03 63
6-Feb-03 58
7-Feb-03 58
8-Feb-03 61
9-Feb-03 105
10-Feb-03 156
11-Feb-03 77
12-Feb-03 122
13-Feb-03 118
14-Feb-03 99
15-Feb-03 133
16-Feb-03 81
17-Feb-03 53
18-Feb-03 86
19-Feb-03 86
20-Feb-03 80
21-Feb-03 335
22-Feb-03 356
23-Feb-03 303
24-Feb-03 410
25-Feb-03 163
26-Feb-03 165
27-Feb-03 197
28-Feb-03 202
1-Mar-03 159
2-Mar-03 151
3-Mar-03 124
4-Mar-03 87
5-Mar-03 109
6-Mar-03 165
7-Mar-03 165
8-Mar-03 204
9-Mar-03 220
10-Mar-03 185
11-Mar-03 173
12-Mar-03 176
13-Mar-03 157
14-Mar-03 164
15-Mar-03 112
16-Mar-03 115
17-Mar-03 64
18-Mar-03 103
19-Mar-03 126
20-Mar-03 148
21-Mar-03 221
22-Mar-03 184
23-Mar-03 184