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Open AccessArticle

Extreme Drought Events over Brazil from 2011 to 2019

1
National Center for Monitoring and Early Warning of Natural Disasters (CEMADEN), São José dos Campos 12247-016, Brazil
2
Earth System Science Center–CCST/National Institute for Space Research, São José dos Campos 12227-010, Brazil
*
Author to whom correspondence should be addressed.
Atmosphere 2019, 10(11), 642; https://doi.org/10.3390/atmos10110642
Received: 31 August 2019 / Revised: 4 October 2019 / Accepted: 11 October 2019 / Published: 24 October 2019
(This article belongs to the Special Issue Meteorological and Hydrological Droughts)
Drought-related disasters are among the natural disasters that are able to cause large economic and social losses. In recent years, droughts have affected different regions of Brazil, impacting water, food, and energy security. In this study, we used the Integrated Drought Index (IDI), which combines a meteorological-based drought index and remote sensing-based index, to assess the drought events from 2011 to 2019 over Brazil. During this period, drought events were observed throughout the country, being most severe and widespread between the years 2011 and 2017. In most of the country, the 2014/15 hydrological year stands out due to the higher occurrence of severe and moderate droughts. However, drought intensity and observed impacts were different for each region, which is shown by the different case studies, assessing different types of impacts caused by drought in Brazil. Thus, it is fundamental to evaluate the impacts of droughts in a continental country such as Brazil, where a variety of vegetation, soil, land use, and especially different climate regimes predominate. View Full-Text
Keywords: drought assessment; hydrological drought; agricultural drought; SPI; VHI; Brazil drought assessment; hydrological drought; agricultural drought; SPI; VHI; Brazil
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Cunha, A.P.M.A.; Zeri, M.; Deusdará Leal, K.; Costa, L.; Cuartas, L.A.; Marengo, J.A.; Tomasella, J.; Vieira, R.M.; Barbosa, A.A.; Cunningham, C.; Cal Garcia, J.V.; Broedel, E.; Alvalá, R.; Ribeiro-Neto, G. Extreme Drought Events over Brazil from 2011 to 2019. Atmosphere 2019, 10, 642.

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