Dry spell

Arica, a port city in northern Chile, holds the record for the longest sustained dry period. Arica received no rain for 173 months (over 14 years) from 10 October 1903 to 1 January 1918. Arica has a population of around 155,000 (as at 2015) and an average annual rainfall of 1 mm. (http://bit.ly/2NmvspZ, http://bit.ly/2u1o8am)

2 responses to “Dry spell

  1. Jane Gurney

    6 years Ago

    Cape Town could learn from them, I suppose. How do they obtain water? Desalination plants?

  2. Eighty20

    6 years Ago

    Hi Jane. Thanks very much for your interest.

    Investigating water supply solutions already in implementation elsewhere is a great idea.

    Arica and surrounds get their water from a system of rivers and designed canals, and from aquifers underground.

    If you’d like to read more, there is some interesting information on their water supply and regulation in the paper ‘Institutional and Organizational Arrangements for Water Markets in Chile’ (Robert R. Hearne) – you can read an extract of this in the book ‘Markets for Water: Potential and Performance’ via Google Books.

    Additionally, the section on Arica in the book ‘Going to Extremes’ by Nick Middleton is very illuminating.

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