Resumo

BORZI, Guido et al. Methodological proposal for the study of floods in plains areas with a lack of information. Dyna rev.fac.nac.minas [online]. 2020, vol.87, n.215, pp.221-228.  Epub 15-Jan-2021. ISSN 0012-7353.  https://doi.org/10.15446/dyna.v87n215.85140.

The plains constitute areas of great potential for agricultural production frequently affected by floods. The objective of the work is to use a methodology that allows demonstrating under what conditions floods occur in plains areas with a shortage of basic information, taking as a case study the Samborombón River basin, located in the center-east of Argentina. For this, Landsat satellite images were observed and daily water balances were performed, to subsequently perform a statistical analysis of recurrence. The results obtained show that flooding is greatly influenced by previous soil water conditions. The methodology used allows estimating return periods in low-slope plain basins, requiring only satellite images of free access and daily average temperature and precipitation data, obtaining results that reflect the state of the basin after precipitation events.

Palavras-chave : waterlogging; precipitation; evapotranspiration; soil available water; plains hydrology.

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