Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    When every drop counts: Analysis of Droughts in Brazil for the 1901-2013 period

    246170.pdf (2.602Mb)
    Access Status
    Open access
    Authors
    Awange, Joseph
    Mpelasoka, F.
    Goncalves, R.
    Date
    2016
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Awange, J. and Mpelasoka, F. and Goncalves, R. 2016. When every drop counts: Analysis of Droughts in Brazil for the 1901-2013 period. Science of the Total Environment. 566-567: pp. 1472-1488.
    Source Title
    Science of the Total Environment
    DOI
    10.1016/j.scitotenv.2016.06.031
    ISSN
    0048-9697
    School
    Department of Spatial Sciences
    URI
    http://hdl.handle.net/20.500.11937/21690
    Collection
    • Curtin Research Publications
    Abstract

    To provide information useful in policy formulation and management of drought impacts in Brazil, in this study, a sequence of drought events based on monthly rainfall of 1901-2013 on ~ 25 km x 25 km grid are derived at 4 timescales that include short-timescales (3-month and 6-month) and medium to long-timescales (12-month and 24-month). Subsequently, probability of drought occurrences, intensity, duration and areal-extent are calculated. The probabilities of occurrence of severe and extreme droughts at short-timescales are 1 in 12 and 1 in 66 years, respectively, all over the country. At medium to long-timescales, the probability of severe droughts is about 1 in 20 years in northern Brazil, and 1 in 10 years in the south. The probabilities of extreme droughts are 1 in 9 and 1 in 12 years over northern Brazil and in the south, respectively. In general, no evidence of significant (a = 0.05) trend is detected in drought frequency, intensity, and duration over the last 11 decades (since 1901) at all the 4 timescales. The drought areal-extent show increasing trends of 3.4%/decade over Brazil for both 3-month and 6-month timescales. However, the trend increases for the 12-month and 24-month timescales are relatively smaller, i.e., 2.4%/decade and 0.5%/decade, respectively.

    Related items

    Showing items related by title, author, creator and subject.

    • Influence of coupled ocean-atmosphere phenomena on the Greater Horn of Africa droughts and their implications
      Mpelasoka, F.; Awange, Joseph; Zerihun, Ayalsew (2018)
      Drought-like humanitarian crises in the Greater Horn of Africa (GHA) are increasing despite recent progress in drought monitoring and prediction efforts. Notwithstanding these efforts, there remain challenges stemming ...
    • Accounting for dynamics of mean precipitation in drought projections: A case study of Brazil for the 2050 and 2070 periods
      Mpelasoka, F.; Awange, Joseph; Goncalves, R. (2018)
      © 2017 Elsevier B.V. Changes in drought around the globe are among the most daunting potential effects of climate change. However, changes in droughts are often not well distinguished from changes in aridity levels. As ...
    • On the potentials of multiple climate variables in assessing the spatio-temporal characteristics of hydrological droughts over the Volta Basin
      Ndehedehe, C.; Awange, Joseph; Corner, Robert; Kuhn, Michael; Okwuashi, O. (2016)
      Multiple drought episodes over the Volta basin in recent reports may lead to food insecurity and loss of revenue. However, drought studies over the Volta basin are rather generalised and largely undocumented due to sparse ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.