IAFE   05512
INSTITUTO DE ASTRONOMIA Y FISICA DEL ESPACIO
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
La Plata River Plume, challenging waters for atmospheric correction and TSM algorithms
Autor/es:
DOGLIOTTI, A.I.; VANHELLEMONT, Q.; RUDDICK, K.
Reunión:
Encuentro; 1st CoastColour User Consultation Meeting; 2010
Resumen:
The La Plata River drains the second largest basin of South America, covering an area of 3.1 x 106 km2 and discharging an average of 23,000 m3 s-1 of freshwater into the Atlantic Ocean at 35ºS. The river outflow introduces suspended matter (with a suspended sediment concentration ranging from 100 mg L-1 to 300 mg L-1), dissolved and particulate organic matter into the shelf influencing the optical properties of the coastal waters, making satellite sensors the most suitable tools available to map the river influence on the adjacent ocean. A data base of MODIS/Aqua level 2 total suspended matter (TSM) product (Nechad et al., Rem. Sens. Env. 2010) from the study region has been generated and the analysis showed that most of the upper region of the estuary is usually masked (CLD,HILT,ATMFAIL) due to the highly turbid and reflective waters. Thus, the application of a different atmospheric correction and adaptation of the TSM algorithm are required if useful information from this region is to be retrieved. Similar products from MERIS instrument are desired given its particular characteristics (more bands and higher spatial resolution) which make it suitable for retrieving information on water constituents in this highly turbid coastal region.