N. H. Hunter Williams

Geological Survey of Ireland | GSI

Study region: The study uses 78 groundwater head time series across 10 European countries with various geological and hydrological settings. Study focus: The estimation of groundwater recharge using time series analysis and lumped modelling based on groundwater head time series is a low-cost and practical method. However, lumped recharge estimation...

The GeoERA project MUSE “Managing Urban Shallow geothermal Energy” (2018 - 2021) addressed novel management approaches of urban shallow geothermal energy from the point of view of Geological Survey Organisations (GSOs). A consortium of 16 different regional to national GSOs from 15 countries joined forces for developing and testing concepts and pro...

Real-time soil moisture measurements are essential to manage for adaptive dynamic management of climate change adaptation and reduction of nutrient losses and greenhouse gas emissions from agriculture and forestry. Soil moisture status influences crop growth, run-off, groundwater recharge, land surface-atmospheric exchange dynamics and greenhouse g...

The occurrence of groundwater drought is closely linked to the meteorological input but also to the surface and subsurface properties, which function as lagging filter for the input signal. Knowledge about the potential occurrence of groundwater droughts is relevant for existing and future groundwater users, particularly in regions where climate ch...

The occurrence of groundwater drought is closely linked to the meteorological input but also to the surface and subsurface properties, which function as lagging filter for the input signal. Knowledge about the potential occurrence of groundwater droughts is relevant for existing and future groundwater users, particularly in regions where climate ch...

Groundwater recharge quantification is essential for sustainable groundwater resources management, but typically limited to local and regional scale estimates. A high-resolution (1 km × 1 km) dataset consisting of long-term average actual evapotranspiration, effective precipitation, a groundwater recharge coefficient, and the resulting groundwater...

In 2018, the MUSE project (Managing Urban Shallow Geothermal Energy) was launched under the umbrella of the GeoERA initiative of the European Geological Surveys (http://geoera.eu/). Partners from 16 European Geological Survey Organizations investigate potential of shallow geothermal energy (SGE) and possible conflicts associated with its use in the...

In 2018, the MUSE project (Managing Urban Shallow Geothermal Energy) was launched under the umbrella of the GeoERA initiative of the European Geological Surveys (http://geoera.eu/). Partners from 16 European Geological Survey Organizations investigate potential of shallow geothermal energy (SGE) and possible conflicts associated with its use in the...

The MUSE project is one of 15 awarded project proposals under the H2020 GeoERA program that will be implemented from July 2018 to June 2021. GeoERA (Establishing the European Geological Surveys Research Area to deliver a Geological Service for Europe) is the largest European research program in the field of geoscience, co-funded by the European Com...

The MUSE project (http://geoera.eu/projects/muse/) is one of 15 awarded project proposals under the H2020 GeoERA program that will be implemented from July 2018 to June 2021. GeoERA (Establishing the European Geological Surveys Research Area to deliver a Geological Service for Europe) is the largest European research programme in the field of geosc...

The natural background levels established in this report are the range in concentration of chemical parameters in Irish groundwater arising from natural processes. They are important for understanding pollution and for setting regulatory limits. The EU Water Framework Directive (2000/60/EC) and Groundwater Daughter Directive (2006/118/EC) require M...

The presence of arsenic in groundwater has become a global concern due to the health risks from drinking water with elevated concentrations. The Water Framework Directive (WFD) of the European Union calls for drinking water risk assessment for member states. The present study amalgamates readily available national and sub-national scale datasets on...

The overall objective of this project is to investigate in detail for the first time the sources and/or sinks of As and other metals (e.g. Fe and Mn) which occur within the groundwater supplies in the Co. Louth area using a suite of microscopy and spectroscopy techniques on rock samples from the two main cores, Feede (200 m ) and Faughart (221 m) c...

Excess nitrogen in soil, aquatic and atmospheric environments is an escalating global problem. Eutrophication is the principal threat to surface water quality in the Republic of Ireland. European Union Water Framework Directive (2000/60/EC) water quality status assessments found that 16% of Irish groundwater bodies were ‘at risk’ of poor status due...

A groundwater recharge map has been created for the Republic of Ireland. This provides important baseline information for multiple purposes: aquifer water balance assessments using simple lumped models or distributed numerical groundwater models; assessment of the impact of groundwater abstractions as required under the European Water Framework Dir...

Analysis of groundwater level records from Ireland's South Eastern River Basin District (SERBD) allowed fundamental information about the nature of bedrock and gravel aquifers to be investigated. The hydrogeological setting of a monitoring point (with respect to, for example, recharge area, discharge area or proximity to a river) is the dominant fa...

from the Knockatallon aquifer in County Monaghan, Ireland, caused groundwater levels to fall substantially over a 20 year period. The aquifer consists of two formations of fractured limestone and other Carboniferous rocks. The aquifer is overlain by up to 53 m of low-permeability glacial tills. The presence of this overburden inhibits direct rechar...

qualities show the relationship between the signal, approximations and details at each level: ############## #################### ######################### ########### ############ after: Wavelet Toolbox User's Guide (1996) INTRODUCTION For detailed petroleum reservoir description, it is important to be able to identify and characterise systematic...