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Groundwater contamination risks from conservative point source pollutants in a future climate

Persson, Magnus LU ; Selim, Tarek LU and Olsson, Jonas LU (2019) In Hydrological Sciences Journal 64(13). p.1659-1671
Abstract

The groundwater contamination risk in future climates was investigated at three locations in Sweden. Solute transport penetration depths were simulated using the HYDRUS-1D model using historical data and an ensemble of climate projections including two global climate models (GCMs), three emission scenarios and one regional climate model. Most projections indicated increasing precipitation and evapotranspiration until mid-century with a further increase at end-century. Results showed both increasing and decreasing groundwater contamination risks depending on emission scenario and GCM. Generally, the groundwater contamination risk is likely to be unchanged until mid-century, but higher at the end of the century. Soil and site specific... (More)

The groundwater contamination risk in future climates was investigated at three locations in Sweden. Solute transport penetration depths were simulated using the HYDRUS-1D model using historical data and an ensemble of climate projections including two global climate models (GCMs), three emission scenarios and one regional climate model. Most projections indicated increasing precipitation and evapotranspiration until mid-century with a further increase at end-century. Results showed both increasing and decreasing groundwater contamination risks depending on emission scenario and GCM. Generally, the groundwater contamination risk is likely to be unchanged until mid-century, but higher at the end of the century. Soil and site specific relationships between Δ(P–PET) (i.e. change in the difference between precipitation, P, and potential evapotranspiration, PET) and changes in solute transport depths were determined. Using this, changes in solute transport depths for other climate projections can be assessed.

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author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
climate change, groundwater contamination, HYDRUS-1D, solute transport, Sweden
in
Hydrological Sciences Journal
volume
64
issue
13
pages
13 pages
publisher
Taylor & Francis
external identifiers
  • scopus:85073601474
ISSN
0262-6667
DOI
10.1080/02626667.2019.1662022
language
English
LU publication?
yes
id
71df1e06-ff0b-4d3d-bfe3-89f1d9b057bc
date added to LUP
2020-04-23 11:53:02
date last changed
2022-04-18 22:12:02
@article{71df1e06-ff0b-4d3d-bfe3-89f1d9b057bc,
  abstract     = {{<p>The groundwater contamination risk in future climates was investigated at three locations in Sweden. Solute transport penetration depths were simulated using the HYDRUS-1D model using historical data and an ensemble of climate projections including two global climate models (GCMs), three emission scenarios and one regional climate model. Most projections indicated increasing precipitation and evapotranspiration until mid-century with a further increase at end-century. Results showed both increasing and decreasing groundwater contamination risks depending on emission scenario and GCM. Generally, the groundwater contamination risk is likely to be unchanged until mid-century, but higher at the end of the century. Soil and site specific relationships between Δ(P–PET) (i.e. change in the difference between precipitation, P, and potential evapotranspiration, PET) and changes in solute transport depths were determined. Using this, changes in solute transport depths for other climate projections can be assessed.</p>}},
  author       = {{Persson, Magnus and Selim, Tarek and Olsson, Jonas}},
  issn         = {{0262-6667}},
  keywords     = {{climate change; groundwater contamination; HYDRUS-1D; solute transport; Sweden}},
  language     = {{eng}},
  number       = {{13}},
  pages        = {{1659--1671}},
  publisher    = {{Taylor & Francis}},
  series       = {{Hydrological Sciences Journal}},
  title        = {{Groundwater contamination risks from conservative point source pollutants in a future climate}},
  url          = {{http://dx.doi.org/10.1080/02626667.2019.1662022}},
  doi          = {{10.1080/02626667.2019.1662022}},
  volume       = {{64}},
  year         = {{2019}},
}