Conferencia
Abstract:
The Paraná River Delta Region is a huge mosaic of wetlands which covers 17,000 km 2 at the final portion of the Del Plata Basin in Argentina. This paper focuses on a brief review about how different sensors and a multi-scale approach bring insight on structural and functional features of wetlands, from regional to a specific ecosystem level in a top-down/botton-up approach. At broad scale, ENVISAT Wide Swath Mode (WSM) imagery along with optical SACC-MMRS and the last two decades of Normalized Vegetation Index (NDVI) time series of NOAA-AVHRR satellite systems were used to analyze landscape heterogeneity and wetland functioning in the whole region. The influence of "E1 Niño" flooding events was evaluated in different wetland landscape units. At fine scale, on the Lower Delta, detailed maps were produced using six Landsat Thematic Mapper images obtaining 28 wetland cover classes with an accuracy assessment of approximately 83%. In this region, special attention has also been given to the study of freshwater tidal marshes dominated by Scirpus giganteus. This marsh covers more than 40% of the Lower Delta surface, in the upper portion of the Del Plata Estuary. Net aboveground primary production (NAPP) field measurements were calibrated with NDVI derived from Landsat ETM+ surface reflectance values resulting in the first map of NAPP for the delta marshes. We also addressed the subject of ENVISAT ASAR imagery detecting aboveground biomass variations and water below the canopy.
Registro:
| Documento: | Conferencia |
| Título: | Multiscale-multisensor approach in studying wetlands of the Paraná river Delta Region in Argentina |
| Autor: | Kandus, P.; Karszenbaum, H.; Salvia, M.; Gonzalez Trilla, G.; Pratolongo, P.; Grings, F.M.; Zoffoli, L.; Ferrazzoli, P. |
| Ciudad: | Frascati, Rome |
| Filiación: | Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales (FCEyN), Pab. II, (1428) Buenos Aires, Argentina Instituto de Astronomía y Física del Espacio (IAFE), Ciudad Universitaria, (1428) Buenos Aires, Argentina Università di Roma Tor Vergata, Facoltà di Ingegneria, Dipartimento dl Informatica, Sisteml e Produzlone (DISP), Via del Politecnico 1, 00133 Roma, Italy |
| Palabras clave: | Image analysis; Rivers; Satellite imagery; Vegetation; Wetlands; Thematic Mapper images; Tidal marshes; Wide Swath Modes (WSM); Sensors |
| Año: | 2006 |
| Número: | SP-634 |
| Título revista: | 1st International Symposium on GlobWetland: Looking at Wetlands from Space |
| Título revista abreviado: | Eur Space Agency Spec Publ ESA SP |
| ISSN: | 03796566 |
| CODEN: | ESPUD |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03796566_v_nSP-634_p_Kandus |
Referencias:
- Neiff, J.J., Malvárez, A.I., Grandes humedales fluviales. In Malvárez and Bó comp (2004) Bases ecológicas para la clasificación de humedales en Argentina, pp. 77-83. , Pp
- Malvárez, A.I., (1997) Las comunidades vegetales del Delta del rio Paraná. Su relación con factores ambientales y patrones de paisaje, , Tesis Doctoral. Universidad de Buenos Aires. Argentina
- Zoffoli, L., Patrones de NDVI como indicadores del funcionamiento de ecosistemas de humedal en el Delta del Rio Paraná (Argentina) (2006) Influencia de El Niño, , Tesis de licenciatura. Universidad de Buenos Aires, Buenos Aires, Argentina
- Bono J. M. Srur, H. Karszenbaum and P. Kandus 2003. Land cover map. In Kandus P., R. Quintana and R. Bó, Landscape Patterns and Biodiversity of the Lower Delta of the Paraná River; Pratolongo, P., (2005) Dinámica de comunidades herbaceas del Bajo Delta del río Paraná sujetas a diferentes regímenes hidrológicos y su monitoreo mediante sensores remotos, , Ph.D. Dissertation, Universidad de Buenos Aires, Buenos Aires, Argentina
- Ferrazzoli, P., Grings, F.M., Karszenbaum, H., Salvia, M., Kandus, P., Perna, P., Advances in radar remote sensing of wetland ecosystems: Combination of satellite observations, field data and EM models (2006) this proceedings
- Kandus, P., Karszenbaum, H., Frulla, L.A., Land cover classification system for the Lower Delta of the Paraná River (Argentina): Its relationship with Landsat Thematic Mapper spectral classes (1999) Journal of Coastal Research, 4 (15), pp. 909-926. , USA
Citas:
---------- APA ----------
Kandus, P., Karszenbaum, H., Salvia, M., Gonzalez Trilla, G., Pratolongo, P., Grings, F.M., Zoffoli, L.,..., Ferrazzoli, P. (2006) . Multiscale-multisensor approach in studying wetlands of the Paraná river Delta Region in Argentina. 1st International Symposium on GlobWetland: Looking at Wetlands from Space(SP-634).Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03796566_v_nSP-634_p_Kandus [ ]
---------- CHICAGO ----------
Kandus, P., Karszenbaum, H., Salvia, M., Gonzalez Trilla, G., Pratolongo, P., Grings, F.M., et al. "Multiscale-multisensor approach in studying wetlands of the Paraná river Delta Region in Argentina" . 1st International Symposium on GlobWetland: Looking at Wetlands from Space, no. SP-634 (2006).Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03796566_v_nSP-634_p_Kandus [ ]
---------- MLA ----------
Kandus, P., Karszenbaum, H., Salvia, M., Gonzalez Trilla, G., Pratolongo, P., Grings, F.M., et al. "Multiscale-multisensor approach in studying wetlands of the Paraná river Delta Region in Argentina" . 1st International Symposium on GlobWetland: Looking at Wetlands from Space, no. SP-634, 2006.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03796566_v_nSP-634_p_Kandus [ ]
---------- VANCOUVER ----------
Kandus, P., Karszenbaum, H., Salvia, M., Gonzalez Trilla, G., Pratolongo, P., Grings, F.M., et al. Multiscale-multisensor approach in studying wetlands of the Paraná river Delta Region in Argentina. Eur Space Agency Spec Publ ESA SP. 2006(SP-634).Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03796566_v_nSP-634_p_Kandus [ ]
