A Comparison of Data-Driven Groundwater Vulnerability Assessment Methods

Ground Water ◽  
2013 ◽  
Vol 51 (6) ◽  
pp. 866-879 ◽  
Author(s):  
Alessandro Sorichetta ◽  
Cristiano Ballabio ◽  
Marco Masetti ◽  
Gilpin R. Robinson ◽  
Simone Sterlacchini
Keyword(s):  
Vulnerability Assessment ◽  
Groundwater Vulnerability ◽  
Assessment Methods ◽  
Data Driven ◽  
Groundwater Vulnerability Assessment

scholarly journals Denitrification in Intrinsic and Specific Groundwater Vulnerability Assessment: A Review

2021 ◽  
Vol 11 (22) ◽  
pp. 10657
Author(s):  
Gianluigi Busico ◽  
Luigi Alessandrino ◽  
Micòl Mastrocicco
Keyword(s):  
Vulnerability Assessment ◽  
Hybrid Methods ◽  
Numerical Models ◽  
Groundwater Vulnerability ◽  
Temporal Variations ◽  
Assessment Methods ◽  
Spatial And Temporal Scales ◽  
Loading Rates ◽  
Groundwater Vulnerability Assessment ◽  
User Friendly

Several groundwater vulnerability methodologies have been implemented throughout the years to face the increasing worldwide groundwater pollution, ranging from simple rating methodologies to complex numerical, statistical, and hybrid methods. Most of these methods have been used to evaluate groundwater vulnerability to nitrate, which is considered the major groundwater contaminant worldwide. Together with dilution, the degradation of nitrate via denitrification has been acknowledged as a process that can reduce reactive nitrogen mass loading rates in both deep and shallow aquifers. Thus, denitrification should be included in groundwater vulnerability studies and integrated into the various methodologies. This work reviewed the way in which denitrification has been considered within the vulnerability assessment methods and how it could increase the reliability of the overall results. Rating and statistical methods often disregard or indirectly incorporate denitrification, while numerical models make use of kinetic reactions that are able to quantify the spatial and temporal variations of denitrification rates. Nevertheless, the rating methods are still the most utilized, due to their linear structures, especially in watershed studies. More efforts should be paid in future studies to implement, calibrate, and validate user-friendly vulnerability assessment methods that are able to deal with denitrification capacity and rates at large spatial and temporal scales.

scholarly journals A Comparative Study of Groundwater Vulnerability Assessment Methods: Application in Gumma, Korea

2013 ◽  
Vol 18 (3) ◽  
pp. 119-133 ◽  
Author(s):  
Min-Gyu Ki ◽  
Heesung Yoon ◽  
Dong-Chan Koh ◽  
Se-Yeong Hamm ◽  
Chung-Mo Lee ◽  
...  
Keyword(s):  
Comparative Study ◽  
Vulnerability Assessment ◽  
Groundwater Vulnerability ◽  
Assessment Methods ◽  
Groundwater Vulnerability Assessment

Groundwater Vulnerability Assessment Through a Modified DRASTI-LU Framework: Case Study of Saiss Basin in Morocco

2021 ◽  
Author(s):  
Abdelhakim Lahjouj ◽  
Abdellah El Hmaidi ◽  
Ali Essahlaoui ◽  
M. J. B. Alam ◽  
Mohammed S. A. Siddiquee ◽  
...  
Keyword(s):  
Vulnerability Assessment ◽  
Groundwater Vulnerability ◽  
Groundwater Vulnerability Assessment

scholarly journals Groundwater vulnerability assessment: from overlay methods to statistical methods in the Lombardy Plain area

2017 ◽  
Vol 6 (2) ◽  
Author(s):  
Stefania Stevenazzi ◽  
Marco Masetti ◽  
Giovanni Pietro Beretta
Keyword(s):  
Land Use Planning ◽  
Vulnerability Assessment ◽  
Industrial Development ◽  
Regional Scale ◽  
Scientific Progress ◽  
Groundwater Vulnerability ◽  
Anthropogenic Sources ◽  
Plain Area ◽  
Groundwater Vulnerability Assessment ◽  
Vulnerability Maps

Groundwater is among the most important freshwater resources. Worldwide, aquifers are experiencing an increasing threat of pollution from urbanization, industrial development, agricultural activities and mining enterprise. Thus, practical actions, strategies and solutions to protect groundwater from these anthropogenic sources are widely required. The most efficient tool, which helps supporting land use planning, while protecting groundwater from contamination, is represented by groundwater vulnerability assessment. Over the years, several methods assessing groundwater vulnerability have been developed: overlay and index methods, statistical and process-based methods. All methods are means to synthesize complex hydrogeological information into a unique document, which is a groundwater vulnerability map, useable by planners, decision and policy makers, geoscientists and the public. Although it is not possible to identify an approach which could be the best one for all situations, the final product should always be scientific defensible, meaningful and reliable. Nevertheless, various methods may produce very different results at any given site. Thus, reasons for similarities and differences need to be deeply investigated. This study demonstrates the reliability and flexibility of a spatial statistical method to assess groundwater vulnerability to contamination at a regional scale. The Lombardy Plain case study is particularly interesting for its long history of groundwater monitoring (quality and quantity), availability of hydrogeological data, and combined presence of various anthropogenic sources of contamination. Recent updates of the regional water protection plan have raised the necessity of realizing more flexible, reliable and accurate groundwater vulnerability maps. A comparison of groundwater vulnerability maps obtained through different approaches and developed in a time span of several years has demonstrated the relevance of the continuous scientific progress, recognizing strengths and weaknesses of each research.

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