Site ID: 1587 Lat. -23.3290 Madagascar Fianarantsoa
River: Mananara Long. 47.5397
Site name: Vangaindrano Contributing area: 16189 km2 Ratio to Comparison Station: 0.57
Latest measurement: 11-Jul-10 Mean annual runoff: 372 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 158.3 mm
Latest M/C ratio: 1.27 Seven day total: 6.3 mm
Estimated current discharge: 259 m3/sec Percent of mean 7-day total: 83.9 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 599 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 604 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
187 2002 no data no data no data no data no data no data no data 43.2 40.7 35.5 26.1 41.9
476 2003 45.4 41.8 42.4 35.3 41.8 43.6 44.5 51.5 40.5 32.1 20.7 36.4
607 2004 35.0 64.7 65.7 49.1 69.6 48.8 55.4 54.5 44.7 31.3 36.8 51.5
396 2005 57.5 61.2 50.1 23.6 21.0 49.7 36.1 30.2 25.9 15.4 9.2 15.9
237 2006 21.0 21.9 22.5 15.3 19.0 22.5 30.7 31.5 30.9 21.4 0.0 0.0
278 2007 20.7 34.4 29.3 26.4 24.6 27.0 26.9 28.9 22.8 16.4 10.8 9.9
296 2008 15.6 25.0 27.1 28.3 22.3 21.5 33.4 39.3 32.7 22.7 12.8 15.7
311 2009 30.0 25.1 22.6 22.4 21.4 25.3 34.5 36.4 30.7 26.6 18.7 17.2
158 2010 19.3 20.4 27.3 23.9 21.5 30.9 15.0 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 372 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-02 354
23-Jul-02 354
24-Jul-02 319
25-Jul-02 310
26-Jul-02 251
27-Jul-02 251
28-Jul-02 344
29-Jul-02 371
30-Jul-02 460
31-Jul-02 460
1-Aug-02 424
2-Aug-02
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 410
10-Aug-02 410
11-Aug-02 406
12-Aug-02 406
13-Aug-02 370
14-Aug-02 431
15-Aug-02 542
16-Aug-02 447
17-Aug-02 485
18-Aug-02 332
19-Aug-02 171
20-Aug-02 181
21-Aug-02 124
22-Aug-02 130
23-Aug-02 181
24-Aug-02 183
25-Aug-02 353
26-Aug-02 429
27-Aug-02 381
28-Aug-02 381
29-Aug-02 212
30-Aug-02 219
31-Aug-02 489
1-Sep-02 467
2-Sep-02 560
3-Sep-02 524
4-Sep-02 315
5-Sep-02 244
6-Sep-02 248
7-Sep-02 308
8-Sep-02 311
9-Sep-02 308
10-Sep-02 305
11-Sep-02 283
12-Sep-02 225
13-Sep-02 225
14-Sep-02 207
15-Sep-02 207
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 204
22-Sep-02 237
23-Sep-02 241
24-Sep-02 271
25-Sep-02 294
26-Sep-02 305
27-Sep-02 335
28-Sep-02 307
29-Sep-02 307
30-Sep-02 396
1-Oct-02 336
2-Oct-02 381
3-Oct-02 359
4-Oct-02 363
5-Oct-02 382
6-Oct-02 278
7-Oct-02 219
8-Oct-02 200
9-Oct-02 183
10-Oct-02 171
11-Oct-02 186
12-Oct-02 149
13-Oct-02 95
14-Oct-02 79
15-Oct-02 79
16-Oct-02 95
17-Oct-02 115
18-Oct-02 225
19-Oct-02 193
20-Oct-02 234
21-Oct-02 249
22-Oct-02 137
23-Oct-02 234
24-Oct-02 240
25-Oct-02 284
26-Oct-02 281
27-Oct-02 280
28-Oct-02 223
29-Oct-02 177
30-Oct-02 109
31-Oct-02 109
1-Nov-02 157
2-Nov-02 122
3-Nov-02 239
4-Nov-02 219
5-Nov-02 234
6-Nov-02 319
7-Nov-02 181
8-Nov-02 97
9-Nov-02 132
10-Nov-02 103
11-Nov-02 127
12-Nov-02 181
13-Nov-02 233
14-Nov-02 277
15-Nov-02 236
16-Nov-02 236
17-Nov-02 142
18-Nov-02 94
19-Nov-02 144
20-Nov-02 131
21-Nov-02 122
22-Nov-02 156
23-Nov-02 106
24-Nov-02 53
25-Nov-02 93
26-Nov-02 92
27-Nov-02 139
28-Nov-02 188
29-Nov-02 159
30-Nov-02 182
1-Dec-02 85
2-Dec-02 85
3-Dec-02 100
4-Dec-02 138
5-Dec-02 291
6-Dec-02 264
7-Dec-02 308
8-Dec-02 324
9-Dec-02 235
10-Dec-02 209
11-Dec-02 240
12-Dec-02 279
13-Dec-02 252
14-Dec-02 286
15-Dec-02 263
16-Dec-02 199
17-Dec-02 178
18-Dec-02 178
19-Dec-02 262
20-Dec-02 292
21-Dec-02 421
22-Dec-02 421
23-Dec-02 406
24-Dec-02 360
25-Dec-02 165
26-Dec-02 265
27-Dec-02 282
28-Dec-02 336
29-Dec-02 270
30-Dec-02 238
31-Dec-02 220
1-Jan-03 165
2-Jan-03 244
3-Jan-03 244
4-Jan-03 198
5-Jan-03 229
6-Jan-03 338
7-Jan-03 326
8-Jan-03 382
9-Jan-03 335
10-Jan-03 210
11-Jan-03 222
12-Jan-03 253
13-Jan-03 310
14-Jan-03 248
15-Jan-03 230
16-Jan-03 137
17-Jan-03 50
18-Jan-03 178
19-Jan-03 178
20-Jan-03 202
21-Jan-03 262
22-Jan-03 299
23-Jan-03 309
24-Jan-03 399
25-Jan-03 337
26-Jan-03 259
27-Jan-03 312
28-Jan-03 330
29-Jan-03 513
30-Jan-03 410
31-Jan-03 402
1-Feb-03 386
2-Feb-03 223
3-Feb-03 277
4-Feb-03 277
5-Feb-03 265
6-Feb-03 262
7-Feb-03 274
8-Feb-03 269
9-Feb-03 257
10-Feb-03 219
11-Feb-03 219
12-Feb-03 313
13-Feb-03 399
14-Feb-03 478
15-Feb-03 388
16-Feb-03 369
17-Feb-03 210
18-Feb-03 105
19-Feb-03 144
20-Feb-03 144
21-Feb-03 272
22-Feb-03 248
23-Feb-03 338
24-Feb-03 333
25-Feb-03 331
26-Feb-03 397
27-Feb-03 341
28-Feb-03 97
1-Mar-03 226
2-Mar-03 166
3-Mar-03 184
4-Mar-03 315
5-Mar-03 274
6-Mar-03 333
7-Mar-03 410
8-Mar-03 410
9-Mar-03 239
10-Mar-03 216
11-Mar-03 365
12-Mar-03 342
13-Mar-03 378
14-Mar-03 326
15-Mar-03 161
16-Mar-03 123
17-Mar-03 212
18-Mar-03 88
19-Mar-03 136
20-Mar-03 123
21-Mar-03 26
22-Mar-03 174