Start: 2015
Conclusion: 2017
Nature: Search
Description:
The Surface Water and Ocean Topography (SWOT) mission (Durand et al. 2010), a satellite using Synthetic Aperture Radar (SAR) in an interferometry mode will provide for the first time satellite-based high spatial resolution and temporal sampling observations of the continental surface waters. SWOT has a great potential to improve the knowledge about South American systems and improve the hydrologic/hydrodynamic modelling tools that are being used to address water related problems in this region. There are already several past and present satellite missions, as satellite altimeters (e.g. ENVISAT, JASON, ICESAT, ICESAT2, Altika) and imagery satellites (e.g. LandSat, JERS-1, Alos Palsar) that provide information about surface waters and there is still lot to do to explore them. However, SWOT is the first mission designed for measuring surface waters and will provide simultaneous and detailed spatio-temporal information about river heights, width, slope, discharge, lake height and storage. These great opportunities come with major challenges, as several questions still exist on the potentialities of SWOT and the proper methods for optimal use of this new information in South America. For example: how SWOT like data can be used to elucidate on hydrodynamics of major South American rivers and wetlands and lakes (e.g. Amazon, Pantanal; Paraná)? How to combine SWOT data with South American regional or detailed hydrologic and hydrodynamic models to improve model parameters and estimates of hydrological fields? How next generation of models should evolve in preparation to ingest SWOT-like data? And what can be done meanwhile, with the current satellite observations, to work towards answering these questions and prepare the SWOT mission? In this context, the overall objective of the proposal is to explore the potential of the combination of SWOT observation (in addition to other sources of remote sensing data) and modelling for the study of large to medium size water systems in South America (e.g. Amazon rivers and wetlands, Pantanal wetlands, La Plata Reservoir System, large lakes)..
The project is coordinated by:
Rodrigo Paiva
The following researchers:
Fernando Mainardi Fan, Adriano Rolim da Paz, Walter Collischonn, Stephane Calmant, Ayan Santos Fleischmann, David Manuel Lelinho Da Motta Marques, Carlos Ruberto Fragoso Jr., Anderson Luis Ruhoff, Joecila Santos Da Silva, Marie-Paule Bonnet, Daniel Medeiros Moreira, Sébastien Pinel, Luis Gustavo Gonçalves de Gonçalves, Fabrice Papa, Sylvain Biancamaria, Marielle Gosset, Frédéric Frappart, Michael Durand and Vanessa Becker .
Results:
WONGCHUIG-CORREA, SLY ; CAUDURO DIAS DE PAIVA, RODRIGO ; BIANCAMARIA, SYLVAIN ; COLLISCHONN, WALTER . Assimilation of future SWOT-based river elevations, surface extent and discharge observations into uncertain global hydrological models. JOURNAL OF HYDROLOGY, v. 2020, p. 125473, 2020.
PAIVA, RODRIGO C. D.; DURAND, MICHAEL T. ; HOSSAIN, FAISAL . Spatiotemporal interpolation of discharge across a river network by using synthetic SWOT satellite data. Water Resources Research, v. 51, p. n/a-n/a, 2015.