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effects of climate change on potential groundwater recharge in Great Britain

Herrera-Pantoja, M ; Hiscock, K.M

Hydrological processes, 2008, Vol.22 (1), p.73-86 [Periódico revisado por pares]

Chichester, UK: John Wiley & Sons, Ltd

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  • Título:
    effects of climate change on potential groundwater recharge in Great Britain
  • Autor: Herrera-Pantoja, M ; Hiscock, K.M
  • Assuntos: air temperature ; climate ; climate change scenarios ; dry season ; Earth sciences ; Earth, ocean, space ; ecosystems ; Engineering and environment geology. Geothermics ; environmental impact ; evapotranspiration ; Exact sciences and technology ; extreme events ; global warming ; greenhouse gas emissions ; groundwater ; groundwater recharge ; groundwater resources ; Hydrogeology ; Hydrology. Hydrogeology ; Pollution, environment geology ; potential groundwater recharge ; stochastic weather generator ; water supply ; weather
  • É parte de: Hydrological processes, 2008, Vol.22 (1), p.73-86
  • Notas: http://dx.doi.org/10.1002/hyp.6620
    ArticleID:HYP6620
    Mexican National Council for Science and Technology
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  • Descrição: The predicted increase in mean global temperature due to climate change is expected to affect water availability and, in turn, cause both environmental and societal impacts. To understand the potential impact of climate change on future sustainable water resources, this paper outlines a methodology to quantify the effects of climate change on potential groundwater recharge (or hydrological excess water) for three locations in the north and south of Great Britain. Using results from a stochastic weather generator, actual evapotranspiration and potential groundwater recharge time-series for the historic baseline 1961-1990 and for a future 'high' greenhouse gas emissions scenario for the 2020s, 2050s and 2080s time periods were simulated for Coltishall in East Anglia, Gatwick in southeast England and Paisley in west Scotland. Under the 'high' gas emissions scenario, results showed a decrease of 20% in potential groundwater recharge for Coltishall, 40% for Gatwick and 7% for Paisley by the end of this century. The persistence of dry periods is shown to increase for the three sites during the 2050s and 2080s. Gatwick presents the driest conditions, Coltishall the largest variability of wet and dry periods and Paisley little variability. For Paisley, the main effect of climate change is evident during the dry season (April-September), when the potential amount of hydrological excess water decreases by 88% during the 2080s. Overall, it is concluded that future climate may present a decrease in potential groundwater recharge that will increase stress on local and regional groundwater resources that are already under ecosystem and water supply pressures. Copyright © 2007 John Wiley & Sons, Ltd.
  • Editor: Chichester, UK: John Wiley & Sons, Ltd
  • Idioma: Inglês
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