Site ID: 1261 Lat. -22.6127 Mozambique Gaza
River: Changane Long. 33.0605
Site name: Chigubo Contributing area: 16472 km2 Ratio to Comparison Station: 0.58
Latest measurement: 30-Jul-10 Mean annual runoff: 105 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 43.5 mm
Latest M/C ratio: 0.98 Seven day total: 1.4 mm
Estimated current discharge: 35 m3/sec Percent of mean 7-day total: 154.2 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 353 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 338 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
94 2002 no data no data no data no data no data no data no data 17.2 16.4 23.9 21.0 15.1
205 2003 9.6 6.9 37.2 29.0 21.7 18.6 19.6 14.9 13.3 13.8 9.6 10.5
145 2004 7.2 6.0 29.9 18.7 13.3 12.3 11.6 11.6 8.9 8.9 9.1 7.7
76 2005 9.1 5.9 7.0 6.6 6.1 5.2 0.6 4.8 5.0 6.8 8.1 10.8
61 2006 6.8 4.9 6.3 5.2 6.0 6.7 6.0 5.8 6.6 6.6 0.0 0.0
90 2007 8.5 7.1 7.8 7.4 6.9 6.0 5.8 6.2 5.6 7.0 8.1 13.5
80 2008 10.0 4.9 5.7 4.6 5.4 4.6 4.7 5.3 5.7 6.4 7.1 15.5
78 2009 18.7 5.3 4.7 4.7 5.8 4.7 4.8 4.3 4.6 5.7 7.7 7.3
43 2010 9.1 6.9 5.4 5.5 5.6 5.1 5.5 0.4 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 105 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-02 197
23-Jul-02 197
24-Jul-02 218
25-Jul-02 268
26-Jul-02 281
27-Jul-02 241
28-Jul-02 201
29-Jul-02 171
30-Jul-02 166
31-Jul-02 133
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
10-Aug-02 136
11-Aug-02 149
12-Aug-02 194
13-Aug-02 181
14-Aug-02 207
15-Aug-02 153
16-Aug-02 120
17-Aug-02 138
18-Aug-02 138
19-Aug-02 173
20-Aug-02 139
21-Aug-02 148
22-Aug-02 171
23-Aug-02 178
24-Aug-02 179
25-Aug-02 155
26-Aug-02 116
27-Aug-02 98
28-Aug-02 133
29-Aug-02 130
30-Aug-02 120
31-Aug-02 128
1-Sep-02 102
2-Sep-02 117
3-Sep-02 117
4-Sep-02 159
5-Sep-02 150
6-Sep-02 180
7-Sep-02 141
8-Sep-02 134
9-Sep-02 147
10-Sep-02 103
11-Sep-02 155
12-Sep-02 145
13-Sep-02 146
14-Sep-02 146
15-Sep-02
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 90
22-Sep-02 149
23-Sep-02 156
24-Sep-02 156
25-Sep-02 132
26-Sep-02 97
27-Sep-02 57
28-Sep-02 57
29-Sep-02 147
30-Sep-02 134
1-Oct-02 171
2-Oct-02 195
3-Oct-02 172
4-Oct-02 170
5-Oct-02 170
6-Oct-02 159
7-Oct-02 152
8-Oct-02 178
9-Oct-02 172
10-Oct-02 158
11-Oct-02 137
12-Oct-02 118
13-Oct-02 130
14-Oct-02 141
15-Oct-02 187
16-Oct-02 146
17-Oct-02 125
18-Oct-02 143
19-Oct-02 127
20-Oct-02 153
21-Oct-02 153
22-Oct-02 106
23-Oct-02 117
24-Oct-02 138
25-Oct-02 146
26-Oct-02 168
27-Oct-02 152
28-Oct-02 133
29-Oct-02 114
30-Oct-02 107
31-Oct-02 119
1-Nov-02 119
2-Nov-02 128
3-Nov-02 136
4-Nov-02 166
5-Nov-02 182
6-Nov-02 182
7-Nov-02 174
8-Nov-02 160
9-Nov-02 170
10-Nov-02 156
11-Nov-02 157
12-Nov-02 128
13-Nov-02 86
14-Nov-02 74
15-Nov-02 63
16-Nov-02 94
17-Nov-02 112
18-Nov-02 122
19-Nov-02 176
20-Nov-02 180
21-Nov-02 181
22-Nov-02 181
23-Nov-02 133
24-Nov-02 138
25-Nov-02 131
26-Nov-02 110
27-Nov-02 115
28-Nov-02 97
29-Nov-02 74
30-Nov-02 79
1-Dec-02 79
2-Dec-02 93
3-Dec-02 95
4-Dec-02 110
5-Dec-02 88
6-Dec-02 73
7-Dec-02 58
8-Dec-02 58
9-Dec-02 68
10-Dec-02 79
11-Dec-02 117
12-Dec-02 113
13-Dec-02 130
14-Dec-02 138
15-Dec-02 113
16-Dec-02 119
17-Dec-02 124
18-Dec-02 115
19-Dec-02 102
20-Dec-02 95
21-Dec-02 82
22-Dec-02 69
23-Dec-02 66
24-Dec-02 66
25-Dec-02 84
26-Dec-02 81
27-Dec-02 94
28-Dec-02 89
29-Dec-02 85
30-Dec-02 98
31-Dec-02 95
1-Jan-03 114
2-Jan-03 110
3-Jan-03 58
4-Jan-03 55
5-Jan-03 55
6-Jan-03 56
7-Jan-03 53
8-Jan-03 60
9-Jan-03 60
10-Jan-03 57
11-Jan-03 59
12-Jan-03 60
13-Jan-03 64
14-Jan-03 71
15-Jan-03 62
16-Jan-03 55
17-Jan-03 42
18-Jan-03 40
19-Jan-03 50
20-Jan-03 46
21-Jan-03 45
22-Jan-03 44
23-Jan-03 39
24-Jan-03 41
25-Jan-03 41
26-Jan-03 50
27-Jan-03 54
28-Jan-03 75
29-Jan-03 68
30-Jan-03 73
31-Jan-03 66
1-Feb-03 46
2-Feb-03 49
3-Feb-03 47
4-Feb-03 48
5-Feb-03 43
6-Feb-03 39
7-Feb-03 41
8-Feb-03 37
9-Feb-03 49
10-Feb-03 49
11-Feb-03 34
12-Feb-03 40
13-Feb-03 42
14-Feb-03 43
15-Feb-03 52
16-Feb-03 51
17-Feb-03 48
18-Feb-03 53
19-Feb-03 49
20-Feb-03 53
21-Feb-03 25
22-Feb-03 25
23-Feb-03 30
24-Feb-03 25
25-Feb-03 92
26-Feb-03 92
27-Feb-03 59
28-Feb-03 51
1-Mar-03 45
2-Mar-03 43
3-Mar-03 40
4-Mar-03 70
5-Mar-03 84
6-Mar-03 134
7-Mar-03 134
8-Mar-03 172
9-Mar-03 215
10-Mar-03 273
11-Mar-03 249
12-Mar-03 257
13-Mar-03 286
14-Mar-03 286
15-Mar-03 419
16-Mar-03 427
17-Mar-03 392
18-Mar-03 317
19-Mar-03 277
20-Mar-03 284
21-Mar-03 283
22-Mar-03 407
23-Mar-03 399
24-Mar-03 294
25-Mar-03 163
26-Mar-03 104
27-Mar-03 126
28-Mar-03 85
29-Mar-03 264
30-Mar-03 264