IDEAS home Printed from https://ideas.repec.org/p/hal/journl/hal-03855421.html
   My bibliography  Save this paper

Mapping global hotspots and trends of water quality (1992–2010): a data driven approach

Author

Listed:
  • Sebastien Desbureaux

    (CEE-M - Centre d'Economie de l'Environnement - Montpellier - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement - Institut Agro Montpellier - Institut Agro - Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement - UM - Université de Montpellier)

  • Frederic Mortier

    (UPR Forêts et Sociétés - Forêts et Sociétés - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement, Cirad-ES - Département Environnements et Sociétés - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement)

  • Esha Zaveri

    (World Bank Group)

  • Michelle T H van Vliet

    (Universiteit Utrecht / Utrecht University [Utrecht])

  • Jason Russ

    (World Bank Group)

  • Aude Sophie Rodella

    (World Bank Group)

  • Richard Damania

    (World Bank Group)

Abstract

Clean water is key for sustainable development. However, large gaps in monitoring data limit our understanding of global hotspots of poor water quality and their evolution over time. We demonstrate the value added of a data-driven approach (here, random forest) to provide accurate high-frequency estimates of surface water quality worldwide over the period 1992-2010. We assess water quality for six indicators (temperature, dissolved oxygen, pH, salinity, nitrate-nitrite, phosphorus) relevant for the sustainable development goals. The performance of our modeling approach compares well to, or exceeds, the performance of recently published process-based models. The model's outputs indicate that poor water quality is a global problem that impacts low-, middle-and high-income countries but with different pollutants. When countries become richer, water pollution does not disappear but evolves. Water quality exhibited a signif icant change between 1992 and 2010 with a higher percentage of grid cells where water quality shows a statistically significant deterioration (30%) compared to where water quality improved (22%).

Suggested Citation

  • Sebastien Desbureaux & Frederic Mortier & Esha Zaveri & Michelle T H van Vliet & Jason Russ & Aude Sophie Rodella & Richard Damania, 2022. "Mapping global hotspots and trends of water quality (1992–2010): a data driven approach," Post-Print hal-03855421, HAL.
    • Handle: RePEc:hal:journl:hal-03855421
    DOI: 10.1088/1748-9326/ac9cf6
    Note: View the original document on HAL open archive server: https://hal.inrae.fr/hal-03855421
    as

    Download full text from publisher

    File URL: https://hal.inrae.fr/hal-03855421/document
    Download Restriction: no
    File URL: https://libkey.io/10.1088/1748-9326/ac9cf6?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Other versions of this item:

    More about this item

    Keywords

    water quality; sustainable development goals; random forest; data-driven modelling;
    All these keywords.

    NEP fields

    This paper has been announced in the following NEP Reports:

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:hal:journl:hal-03855421. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: CCSD (email available below). General contact details of provider: https://hal.archives-ouvertes.fr/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.