A5050424395- Climate variability and models
- Hydrology and Watershed Management Studies
- Meteorological Phenomena and Simulations
- Hydrology and Drought Analysis
- Cryospheric studies and observations
- Flood Risk Assessment and Management
- demographic modeling and climate adaptation
- Urban Heat Island Mitigation
- Atmospheric and Environmental Gas Dynamics
- Building Energy and Comfort Optimization
- Soil and Water Nutrient Dynamics
- Wind and Air Flow Studies
- Climate Change Policy and Economics
- Climate Change and Environmental Impact
- Plant Water Relations and Carbon Dynamics
- Soil Moisture and Remote Sensing
- Climate change and permafrost
- Environmental Policies and Emissions
- Soil Carbon and Nitrogen Dynamics
- Coastal and Marine Management
- Insect-Plant Interactions and Control
- Climate Change and Sustainable Development
- Soil erosion and sediment transport
- Oceanographic and Atmospheric Processes
- Climate change impacts on agriculture
National University of Ireland, Maynooth
2015-2024
National University of Ireland
2006-2013
Abstract The European CORDEX (EURO-CORDEX) initiative is a large voluntary effort that seeks to advance regional climate and Earth system science in Europe. As part of the World Climate Research Programme (WCRP) - Coordinated Regional Downscaling Experiment (CORDEX), it shares broader goals providing model evaluation projection framework improving communication with both General Circulation Model (GCM) data user communities. EURO-CORDEX oversees design coordination ongoing ensembles...
Abstract Surface air temperatures modelled by ERA‐40, ERA‐Interim and (NCEP)/(NCAR) reanalysis (NNRP‐1) have been compared with observations at 11 synoptic stations in Ireland over the period 1989–2001. The three datasets show good agreement observed data each other. Slopes of least‐squares line to scatter plots versus observational small differences between reanalyses, NNRP‐1 slopes ranging (0.79–1.06) ± 0.01, (0.83–1.01) 0.01 (0.76–0.98) respectively. Summary statistics monthly mean...
Abstract The Weather Research and Forecasting model (WRF) is used to downscale interim ECMWF Re-Analysis (ERA-Interim) data for the climate over Europe period 1990–95 with grid spacing of 0.44° 12 combinations physical parameterizations. Two longwave radiation schemes, two land surface models (LSMs), microphysics planetary boundary layer (PBL) schemes have been investigated while remaining physics were unchanged. WRF simulations are compared Ensemble-Based Predictions Climate Changes their...
The occurrence of environmental conditions favorable for severe convective storms was assessed in an ensemble 14 regional climate models covering Europe and the Mediterranean with a horizontal grid spacing 0.44°. These included collocated presence latent instability strong deep-layer (surface to 500 hPa) wind shear, which is conducive well-organized storms. precipitation used as proxy initiation. Two scenarios (RCP4.5 RCP8.5) were investigated by comparing two future periods (2021–50...
Abstract Interactions between the land surface and atmosphere play a fundamental role in weather climate system. Here we present comparison of summertime land‐atmosphere coupling strength found subset ERA‐Interim‐driven European domain Coordinated Regional Climate Downscaling Experiment (EURO‐CORDEX) model ensemble (1989–2008). Most regional models (RCMs) reproduce overall soil moisture interannual variability, spatial patterns, annual cycles exchange fluxes for different zones suggested by...
Abstract Producing plausible outputs from statistically downscaled models of daily precipitation remains a significant challenge when producing climate scenarios for impact assessments. This arises primarily as consequence number difficulties encountered working with higher resolution data. Precipitation receipts at site tend to be largely heterogeneous over space and time local factors, such relief, play an important role in determining whether it rains or not. More crucially the point view...
Abstract. In this study, we evaluate a set of high-resolution (25–50 km horizontal grid spacing) global climate models (GCMs) from the High-Resolution Model Intercomparison Project (HighResMIP), developed as part EU-funded PRIMAVERA (Process-based simulation: Advances in high resolution modelling and European risk assessment) project, EURO-CORDEX (Coordinated Regional Climate Downscaling Experiment) regional (RCMs) (12–50 over domain. It is first time that an assessment information using...
Abstract Globally, few precipitation records extend to the 18th century. The England Wales Precipitation (EWP) series is a notable exception with continuous monthly from 1766. EWP has found widespread use across diverse fields of research including trend detection, evaluation climate model simulations, as proxy for mid‐latitude atmospheric circulation, predictor in long‐term European gridded data sets, assessment drought and extremes, tree‐ring reconstructions benchmark other regional...
In contrast to widespread glacier retreat evidenced globally, glaciers in the Karakoram region have exhibited positive mass balances and general stability over past decade. Snow meltwater from western Himalayas, which supplies Indus River Basin, provide an essential source of water more than 215 million people, either directly, as potable water, or indirectly, through hydroelectric generation irrigation for crops. This study focuses on resources Upper Basin (UIB) combines ranges Hindukush,...
Abstract. The assessment of future impacts climate change is associated with a cascade uncertainty linked to the modelling chain employed in assessing local-scale changes. Understanding and quantifying this essential for developing effective adaptation actions. We evaluate quantify uncertainties flood quantiles four catchments, incorporating within our 12 global models contained Coupled Model Intercomparison Project Phase 6, five different bias correction approaches, hydrological model...
Abstract The collaboration between the Coordinated Regional Climate Downscaling Experiment (CORDEX) and Earth System Grid Federation (ESGF) provides open access to an unprecedented ensemble of regional climate model (RCM) simulations, across 14 CORDEX continental-scale domains, with global coverage. These simulations have been used as a new line evidence assess projections in latest contribution Working Group I (WGI) IPCC Sixth Assessment Report (AR6), particularly chapters Atlas. Here, we...
Climate change, resulting from an increase in global temperatures, is likely to have a large impact on glaciers and glacier meltwater during the course of present century significant contributions sea level rise. Globally, are retreat, partly as response return warmer conditions after last neoglacial period Little Ice Age but also because almost continuous increases evident temperature since then. In contrast, Scandinavian glaciers, particularly maritime were maintaining equilibrium or...
Abstract Irish climate is experiencing changes which have been found to be consistent with those occurring at a global scale. Consequently there now growing confidence that these are largely attributable warming. Based on the data from four long-term monitoring, synoptic stations, between 1890 and 2004, mean annual temperatures in Ireland rose by 0.7oC. In absence of strict emissions controls, doubling atmospheric concentrations CO2 likely end twenty-first century. As consequence, projected...
Much uncertainty is derived from the application of conceptual rainfall runoff models. In this paper, HYSIM, an ‘off‐the‐shelf’ model, applied to a suite catchments throughout Ireland in preparation for use climate impact assessment. Parameter assessed using GLUE methodology. Given lack source code available parameter sampling carried out Latin hypercube sampling. Uncertainty bounds are constructed model output. These will be used quantify future simulations as they include error data...
Abstract Modelling future temperature changes is a crucial step in the climate change impacts analysis stage for wide range of environmental and socioeconomic sectors. A scale mismatch exists, however, between coarse spatial resolution at which general circulation models (GCMs) project scenarios, finer impact modellers require such projections. Various downscaling techniques can be used to bridge this gap, with statistical methods emerging as popular, low‐cost accessible means developing...
Abstract In accounting for uncertainties in future simulations of hydrological response a catchment, two approaches have come to the fore: deterministic scenario‐based and stochastic probabilistic approaches. As result wide range outcomes, role probabilistic‐based estimates climate change impacts policy formulation has been increasingly advocated by researchers makers. This study evaluates impact on seasonal river flows propagating daily time series, derived from scenarios using weather...
ABSTRACT Circulation type classifications compiled as part of the COST733 Action, ‘Harmonisation and Application Weather Type Classifications for European Regions’, were evaluated based on their ability to describe variations in surface temperature (maximum minimum) precipitation across Irish landmass. In all 16 different classification schemes, representative four general approaches synoptic typing (leader algorithm, optimization scheme, predefined types, eigenvector analysis) considered....