Changes in seasonality of groundwater level fluctuations in a temperate-cold climate transition zone
In cold (i.e. boreal, subarctic, snowy) climate zones, dynamic groundwater storage is greatly affected by the timing and amount of snowmelt. With global warming, cold climates in the northern hemisphere will transition to temperate. As temperatures rise, the dominant type of precipitation will chang...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-08-01
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| Series: | Journal of Hydrology X |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589915520300134 |
| _version_ | 1818776979761004544 |
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| author | Michelle Nygren Markus Giese Bjørn Kløve Ezra Haaf Pekka M. Rossi Roland Barthel |
| author_facet | Michelle Nygren Markus Giese Bjørn Kløve Ezra Haaf Pekka M. Rossi Roland Barthel |
| author_sort | Michelle Nygren |
| collection | DOAJ |
| description | In cold (i.e. boreal, subarctic, snowy) climate zones, dynamic groundwater storage is greatly affected by the timing and amount of snowmelt. With global warming, cold climates in the northern hemisphere will transition to temperate. As temperatures rise, the dominant type of precipitation will change from snow to rain in winter. Further, the growing season is prolonged. This has a direct impact on the aquifer recharge pattern. However, little is known about the effect of changing annual recharge regimes on groundwater storage.The present work deduces the impact of shifting climate zones on groundwater storage by evaluating the effect of climate seasonality on intra-annual hydraulic head fluctuations. The work compares intra-annual hydraulic head fluctuations in a temperate-cold climate transition zone (Fennoscandia) from two different periods (1980–1989, 2001–2010). This is done by associating rising vs. declining hydraulic heads with hydrometeorology.Due to the northwards migration of the temperate climate zone, there is a shift in seasonality between the two periods. This has a negative impact on groundwater levels, which are significantly lower in 2001–2010, particularly near the climate transition zone. The results demonstrate that increasing temperatures in cold climate regions may change the seasonality of groundwater recharge, by altering the main recharge period from being snowmelt-dominated (spring) to rain-dominated (winter). Additionally, this is connected to the duration of the growing season, which impedes groundwater recharge. The coupled effect of this on groundwater in the study area has led to a significant decrease in groundwater storage. |
| first_indexed | 2024-12-18T11:21:32Z |
| format | Article |
| id | doaj.art-61ffc632e7c641be87ee632da9ddf877 |
| institution | Directory Open Access Journal |
| issn | 2589-9155 |
| language | English |
| last_indexed | 2024-12-18T11:21:32Z |
| publishDate | 2020-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Hydrology X |
| spelling | doaj.art-61ffc632e7c641be87ee632da9ddf8772022-12-21T21:09:49ZengElsevierJournal of Hydrology X2589-91552020-08-018Changes in seasonality of groundwater level fluctuations in a temperate-cold climate transition zoneMichelle Nygren0Markus Giese1Bjørn Kløve2Ezra Haaf3Pekka M. Rossi4Roland Barthel5Department of Earth Sciences, University of Gothenburg, Guldhedsgatan 5A, 41320 Gothenburg, Sweden; Corresponding author.Department of Earth Sciences, University of Gothenburg, Guldhedsgatan 5A, 41320 Gothenburg, SwedenWater, Energy and Environmental Engineering Research Unit, University of Oulu, Pentti Kaiteran katu 1, 90570 Oulu, FinlandDepartment of Earth Sciences, University of Gothenburg, Guldhedsgatan 5A, 41320 Gothenburg, SwedenWater, Energy and Environmental Engineering Research Unit, University of Oulu, Pentti Kaiteran katu 1, 90570 Oulu, FinlandDepartment of Earth Sciences, University of Gothenburg, Guldhedsgatan 5A, 41320 Gothenburg, SwedenIn cold (i.e. boreal, subarctic, snowy) climate zones, dynamic groundwater storage is greatly affected by the timing and amount of snowmelt. With global warming, cold climates in the northern hemisphere will transition to temperate. As temperatures rise, the dominant type of precipitation will change from snow to rain in winter. Further, the growing season is prolonged. This has a direct impact on the aquifer recharge pattern. However, little is known about the effect of changing annual recharge regimes on groundwater storage.The present work deduces the impact of shifting climate zones on groundwater storage by evaluating the effect of climate seasonality on intra-annual hydraulic head fluctuations. The work compares intra-annual hydraulic head fluctuations in a temperate-cold climate transition zone (Fennoscandia) from two different periods (1980–1989, 2001–2010). This is done by associating rising vs. declining hydraulic heads with hydrometeorology.Due to the northwards migration of the temperate climate zone, there is a shift in seasonality between the two periods. This has a negative impact on groundwater levels, which are significantly lower in 2001–2010, particularly near the climate transition zone. The results demonstrate that increasing temperatures in cold climate regions may change the seasonality of groundwater recharge, by altering the main recharge period from being snowmelt-dominated (spring) to rain-dominated (winter). Additionally, this is connected to the duration of the growing season, which impedes groundwater recharge. The coupled effect of this on groundwater in the study area has led to a significant decrease in groundwater storage.http://www.sciencedirect.com/science/article/pii/S2589915520300134Groundwater level fluctuationsClimate changeDynamic groundwater storageSnowmelt rechargeFennoscandia |
| spellingShingle | Michelle Nygren Markus Giese Bjørn Kløve Ezra Haaf Pekka M. Rossi Roland Barthel Changes in seasonality of groundwater level fluctuations in a temperate-cold climate transition zone Journal of Hydrology X Groundwater level fluctuations Climate change Dynamic groundwater storage Snowmelt recharge Fennoscandia |
| title | Changes in seasonality of groundwater level fluctuations in a temperate-cold climate transition zone |
| title_full | Changes in seasonality of groundwater level fluctuations in a temperate-cold climate transition zone |
| title_fullStr | Changes in seasonality of groundwater level fluctuations in a temperate-cold climate transition zone |
| title_full_unstemmed | Changes in seasonality of groundwater level fluctuations in a temperate-cold climate transition zone |
| title_short | Changes in seasonality of groundwater level fluctuations in a temperate-cold climate transition zone |
| title_sort | changes in seasonality of groundwater level fluctuations in a temperate cold climate transition zone |
| topic | Groundwater level fluctuations Climate change Dynamic groundwater storage Snowmelt recharge Fennoscandia |
| url | http://www.sciencedirect.com/science/article/pii/S2589915520300134 |
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