Preprints
https://doi.org/10.5194/nhess-2022-86
https://doi.org/10.5194/nhess-2022-86
04 Apr 2022
 | 04 Apr 2022
Status: this preprint was under review for the journal NHESS but the revision was not accepted.

Water shortage: Assessment and Analysis on a Regional Scale

Yuri Marques Macedo, Adriano Lima Troleis, and Lutiane Queiroz de Almeida

Abstract. This paper aims to analyze the risk of municipal urban water shortage in the state of Rio Grande do Norte (RN) through the results of the Index of Water Shortage Risk (IRDH). The theoretical-methodological assumptions are based on Walle and Birkmann (2015); Almeida, Welle and Birkman (2016); Medeiros (2018); Oliveira (2018); Macedo et al. (2020 e 2021). In this context, the IRDH was structured in a systemic perspective, where the territories of water shortage risk were identified through environmental, social and economic, and state planning indicators, using 19 variables as instruments of analysis. The research was conducted qualitatively and quantitatively, evaluating and analyzing the risk of water shortage in RN and the 153 cities that compose the system of supply managed by the Company of Waters and Sewers of Rio Grande do Norte (CAERN), a state concessionaire (representing 92 % of the 167 cities of the State), in its seven regions of water supply. The result of the IRDH of Rio Grande do Norte proved the relationship between the indicators in the water shortage problem in the State, classifying 49 % of the analyzed cities in the classes of “high” and “very high” risk, which places them in a situation of higher attention regarding the potential damages derived from the water shortage, 40.5 % of them being “medium” and 10 % “low” risks, with no occurrences of “very low” risk examples. In absolute values, 1 city was classified as “very high”; 74 were classified as “high”; 62 as “medium”; and 16 were considered of “low” risk of water shortage. With the goal of reducing/mitigating the results of the IRDH in the State, a transposition of watersheds, integration of supply systems, hydrogeologic research, among others, were proposed.

Publisher's note: Copernicus Publications remains neutral with regard to jurisdictional claims made in the text, published maps, institutional affiliations, or any other geographical representation in this preprint. The responsibility to include appropriate place names lies with the authors.
Yuri Marques Macedo, Adriano Lima Troleis, and Lutiane Queiroz de Almeida

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on nhess-2022-86', Anonymous Referee #1, 14 May 2022
    • AC1: 'Reply on RC1', Yuri Marques Macedo, 30 May 2022
  • RC2: 'Comment on nhess-2022-86', Anonymous Referee #2, 07 Jun 2022
    • AC2: 'Reply on RC2', Yuri Marques Macedo, 09 Jun 2022

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on nhess-2022-86', Anonymous Referee #1, 14 May 2022
    • AC1: 'Reply on RC1', Yuri Marques Macedo, 30 May 2022
  • RC2: 'Comment on nhess-2022-86', Anonymous Referee #2, 07 Jun 2022
    • AC2: 'Reply on RC2', Yuri Marques Macedo, 09 Jun 2022
Yuri Marques Macedo, Adriano Lima Troleis, and Lutiane Queiroz de Almeida
Yuri Marques Macedo, Adriano Lima Troleis, and Lutiane Queiroz de Almeida

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Short summary
This research consists in the elaboration of a water shortage risk index, with an innovative character for the area of ​​disaster risk reduction (DRR). The index was built from 19 variables that structure 4 indicators: Environmental; infrastructure; state planning and socio-economy. The results showed that 49 % of the analyzed municipalities have high and very high risk of water shortages, in addition to 40 % medium risk, which denotes the urgency of the problem in the state.
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