Can there be water scarcity with abundance of water? : Analyzing water stress during a severe drought in Finland

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http://hdl.handle.net/10138/340207

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Ahopelto, L.; Veijalainen, N.; Guillaume, J.H.A.; Keskinen, M.; Marttunen, M.; Varis, O. Can There be Water Scarcity with Abundance of Water? Analyzing Water Stress during a Severe Drought in Finland. Sustainability 2019, 11, 1548. https://doi.org/10.3390/su11061548

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Title: Can there be water scarcity with abundance of water? : Analyzing water stress during a severe drought in Finland
Author: Ahopelto, Lauri; Veijalainen, Noora; Guillaume, Joseph H. A.; Keskinen, Marko; Marttunen, Mika; Varis, Olli
Publisher: MDPI
Date: 2019
Language: en
Belongs to series: Sustainability 2019, 11, 1548
ISSN: 2071-1050
DOI: https://doi.org/10.3390/su11061548
URI: http://hdl.handle.net/10138/340207
Abstract: Severe droughts can affect water security even in countries with ample water resources. In addition, droughts are estimated to become more frequent in several regions due to changing climate. Drought affects many socio-economic sectors (e.g., agriculture, water supply, and industry), as it did in 2018 in Finland. Understanding the basin-wide picture is crucial in drought management planning. To identify vulnerable and water stressed areas in Finland, a water use-to-availability analysis was executed with a reference drought. Water stress was analyzed with the Water Depletion Index WDI. The analysis was executed using national water permits and databases. To represent a severe but realistic drought event, we modelled discharges and runoffs from the worst drought of the last century in Finland (1939–1942). The potential for performing similar analyses in data scarce contexts was also tested using estimates from global models as a screening tool. The results show that the South and Southwest of Finland would have problems with water availability during a severe drought. The most vulnerable areas would benefit from drought mitigation measures and management plans. These measures could be incorporated into the EU River Basin Management Plans.
Subject: water depletion index
global water models
consumptive water use
water stress
water security
water scarcity
drought
Finland
Subject (ysa): vesi
mallit (mallintaminen)
vedenkäyttö
stressi
turvallisuus
huoltovarmuus
niukkuus
kuivuus
Suomi
Rights: CC BY 4.0


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