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Samrit Luoma   Ms.  Research or Laboratory Scientist 
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Samrit Luoma published an article in November 2016.
Top co-authors
J. Okkonen

12 shared publications

Geological Survey of Finland; PO Box 97, Vaasantie 6, FIN-67101 Kokkola Finland

Birgitta Backman

1 shared publications

Publication Record
Distribution of Articles published per year 
(2013 - 2016)
Total number of journals
published in
CONFERENCE-ARTICLE 4 Reads 0 Citations <strong>A hydrogeological model for groundwater management of a shallow low-lying coastal aquifer in southern Finland un... Samrit Luoma, Birgitta Backman Published: 24 November 2016
The 1st International Electronic Conference on Water Sciences, doi: 10.3390/ecws-1-a003
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A shallow low-lying coastal sand aquifer in southern Finland is vulnerable to the climate change and human activities. Under future climate change, a rise in sea-level would cause some parts of the aquifer and the water intake well to be under seawater. This, together with the predicted increase in precipitation, would enhance groundwater recharge and raise the water table, consequently contributing to the potential deterioration of groundwater quality or potential flooding in the low-lying aquifer area. An information on geological and hydrogeological characteristics of the aquifer for the climate change adaptation plan including the possible new locations of water intake wells was needed. This study aimed to construct a three-dimensional geological model and evaluate heterogeneity of the aquifer to provide a geological framework for groundwater flow model and the assessment of groundwater vulnerability. The methods used consist of a stochastic-geostatistical approach incorporated with groundwater flow model to predict the distributions of the superficial layers of a heterogeneous aquifer and to identify the distributions of the aquifer medias (sand and gravel) as well as groundwater flow system. In addition, the LiDAR-based digital elevation model was utilized to define the flood prone areas under the climate change scenarios. The three-dimensional geological model provides a better characterization of the heterogeneity of the aquifer and improved reliability of subsequent groundwater flow model and vulnerability assessment in the aquifer area. The proposed new locations of water intake wells and the results of the study provided useful information for local authorities for groundwater management in future.

Article 0 Reads 2 Citations Comparison of the AVI, modified SINTACS and GALDIT vulnerability methods under future climate-change scenarios for a sha... Jarkko Okkonen, Kirsti Korkka-Niemi, Samrit Luoma Published: 26 September 2016
Hydrogeology Journal, doi: 10.1007/s10040-016-1471-2
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Article 1 Read 1 Citation Arsenic in bedrock, soil and groundwater — The first arsenic guidelines for aggregate production established in Finland Annika Parviainen, Kirsti Loukola-Ruskeeniemi, Timo Tarvaine... Published: 01 November 2015
Earth-Science Reviews, doi: 10.1016/j.earscirev.2015.09.009
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Article 3 Reads 8 Citations Impacts of Future Climate Change and Baltic Sea Level Rise on Groundwater Recharge, Groundwater Levels, and Surface Leak... Samrit Luoma, Jarkko Okkonen Published: 28 November 2014
Water, doi: 10.3390/w6123671
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The impact of climate change and Baltic Sea level rise on groundwater resources in a shallow, unconfined, low-lying coastal aquifer in Hanko, southern Finland, was assessed using the UZF1 model package coupled with the three-dimensional groundwater flow model MODFLOW to simulate flow from the unsaturated zone through the aquifer. The snow and PET models were used to calculate the surface water availability for infiltration from the precipitation data used in UZF1. Infiltration rate, flow in the unsaturated zone and groundwater recharge were then simulated using UZF1. The simulation data from climate and sea level rise scenarios were compared with present data. The results indicated changes in recharge pattern during 2071–2100, with recharge occurring earlier in winter and early spring. The seasonal impacts of climate change on groundwater recharge were more significant, with surface overflow resulting in flooding during winter and early spring and drought during summer. Rising sea level would cause some parts of the aquifer to be under sea level, compromising groundwater quality due to intrusion of sea water. This, together with increased groundwater recharge, would raise groundwater levels and consequently contribute more surface leakage and potential flooding in the low-lying aquifer.
BOOK-CHAPTER 1 Read 1 Citation Climate Change and Groundwater: Impacts and Adaptation in Shallow Coastal Aquifer in Hanko, South Finland Samrit Luoma, Birgitta Bäckman Published: 07 April 2013
Climate Change Adaptation in Practice, doi: 10.1002/9781118548165.ch11
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