A5052845553- Hydrology and Watershed Management Studies
- Climate variability and models
- Hydrology and Drought Analysis
- Flood Risk Assessment and Management
- Tree-ring climate responses
- Meteorological Phenomena and Simulations
- Hydrological Forecasting Using AI
- Soil and Water Nutrient Dynamics
- Coastal and Marine Management
- Atmospheric and Environmental Gas Dynamics
- Fish Ecology and Management Studies
- Plant Water Relations and Carbon Dynamics
- Soil Moisture and Remote Sensing
- Reservoir Engineering and Simulation Methods
- Precipitation Measurement and Analysis
- Species Distribution and Climate Change
- Computational Physics and Python Applications
- Geology and Paleoclimatology Research
- Climate Change Communication and Perception
- Research Data Management Practices
- Environmental Monitoring and Data Management
Met Éireann
2020-2024
National University of Ireland, Maynooth
2014-2019
NSF National Center for Atmospheric Research
2017
Understanding hydrological model predictive capabilities under contrasting climate conditions enables more robust decision making. Using Differential Split Sample Testing (DSST), we analyze the performance of six models for 37 Irish catchments unlike those used training. Additionally, consider four ensemble averaging techniques when examining interperiod transferability. DSST is conducted using 2/3 year noncontinuous blocks (i) wettest/driest years on record based precipitation totals and...
ABSTRACT This work created a 250‐year historic drought catalogue by applying the Standardized Precipitation Index ( SPI ) to Island of Ireland precipitation network (1850–2015) and reconstructed series from 1765. Documentary sources newspaper archives spanning last 250 years, together with other historical are used (1) add confidence quantitative detection episodes (2) gain insight socio‐economic impacts droughts. The results show that is prone but recent decades unrepresentative longer‐term...
Abstract. A continuous 305-year (1711–2016) monthly rainfall series (IoI_1711) is created for the Island of Ireland. The post 1850 draws on an existing quality assured network Ireland, while pre-1850 values come from instrumental and documentary compiled, but not published by UK Met Office. evaluated comparison with independent long-term observations reconstructions precipitation, temperature circulation indices across British–Irish Isles. Strong decadal consistency IoI_1711 other evident...
Cork City, Ireland. Reconstruction of precipitation timeseries is gaining increasing attention for monitoring and prediction studies. To address the challenges posed by non-smooth distributions data, this research proposes an innovative reweighting method combining simulations from machine-learning wavelet methods. By amalgamating multiple models, it aims to generate enhanced results, based on concept that diversity them improve accuracy. Particularly in regions like which have experienced...
This study develops a coherent framework to detect those catchment types associated with high risk of maladaptation future flood risk. Using the "scenario-neutral" approach impact assessment sensitivity Irish catchments fluvial flooding is examined in context national climate change allowances. A predefined domain used quantify responses +2 °C mean annual temperature incremental changes seasonality and precipitation cycle. The magnitude 20-year simulated at each increment using two...
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...
Effective flood forecasting and warning systems depend on robust hydrometric networks tailored to meet the functional, geographical, operational demands of real-time monitoring. This study outlines ideal requirements for data collection transmission support National Flood Forecasting Warning Service (NFFWS). Key considerations include spatial temporal coverage, gauge placement in flood-prone areas, sufficient resolution align with hydrological models.Recommendations emphasize need durable,...
In response to significant flood events, the Irish Government initiated development of a national forecasting service in 2016. A key milestone this initiative is establishment Flood Forecasting Centre (FFC) within Met Éireann, which provides critical and advisory services local authorities emergency management stakeholders.Met Éireann currently advancing an operational fluvial system. The system integrates HYdrological Predictions for Environment (HYPE) model, developed by...
Abstract. Skilful hydrological forecasts can benefit decision-making in water resources management and other water-related sectors that require long-term planning. In Ireland, no such service exists to deliver at the catchment scale. order understand potential for forecasting we benchmark skill of ensemble streamflow prediction (ESP) a diverse sample 46 catchments using GR4J (Génie Rural à 4 paramètres Journalier) model. Skill is evaluated within 52-year hindcast study design over lead times...
The uncertainties in scientific studies for climate risk management can be investigated at three levels of complexity: “ABC”. most sophisticated involves “Analyzing” the full range uncertainty with large multi-model ensemble experiments. simplest is about “Bounding” by defining only upper and lower limits likely outcomes. intermediate approach, “Crystallizing” uncertainty, distills to improve computational efficiency “Analyze” approach. Modelers typically dictate study design,...
The diurnal cycle of precipitation during the summer season over contiguous United States is examined in eight distinct regions. These were identified using cluster analysis applied to characteristics at 2141 rainfall gauges 10-yr period 1991–2000. Application clustering technique provides a physically meaningful way identifying regions for comparison model results with observations. each region specified terms 1) total precipitation, 2) frequency occurrence, and 3) intensity per occurrence...
Abstract Over much of the globe, temporal extent meteorological records is limited, yet a wealth data remains in paper or image form numerous archives. To date, little attention has been given to role that students might play efforts rescue these data. Here we summarize an ambitious research-led, accredited teaching experiment which undergraduate successfully transcribed more than 1,300 station years daily precipitation and associated metadata across Ireland over period 1860–1939. We explore...
Irish newspaper collections are a rich source of information on historical droughts. Following search 250 years such archives, this paper brings to light four articles describing three drought events that convey the cultural impacts and unusual societal responses in nineteenth century Ireland. Amongst archives we find two poems from 1806 1893, call pray for rain 1887, suggestion weather modification 1893. These records demonstrate that, contrary recent experience, Ireland is surprisingly...
ABSTRACT The present study aims to understand the influence of Madden–Julian oscillation (MJO) on seasonal and diurnal characteristics (amplitude phase) rainfall over Indian subcontinent (lat. 10°S–38°N, long. 60°–100°E). is conducted for period 1998–2015 each season. To accomplish this, Tropical Rainfall Measuring Mission (TRMM) data set (3B42, version 7) examined using indices quantifying frequency percentage octet contribution, respectively. real‐time multivariate (RMM) index developed by...
This study assesses the seasonal forecast skill of river flow persistence in 46 catchments representing a range hydrogeological conditions across Ireland. Skill is evaluated against climatology benchmark and by examining correlations between predicted observed anomalies. Forecasts perform best when initialized drier summer months, 87% which show greater relative to at 1-month horizon. Such declines as horizon increases due longer time catchment has “forget” initial anomalous and/or be...
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....
Abstract. A continuous 305-year (1711–2016) monthly rainfall series is created for the Island of Ireland. Two overlapping data sources are employed: i) a previously unpublished UK Meteorological Office note containing annual anomalies and corresponding proportional totals based on weather diaries early observational records period 1711–1977 and; ii) long-term, homogenised island Ireland 1850–2016. Using estimates long-term average precipitation from to merge these sources, new record...
Abstract. Skilful hydrological forecasts can benefit decision-making in water resources management and other water-related sectors that require long-term planning. In Ireland, no such service exists to deliver at the catchment scale. order understand potential for forecasting we benchmark skill of Ensemble Streamflow Prediction (ESP) a diverse sample 46 catchments using GR4J model. Skill is evaluated within 52-year hindcast study design over lead times 1 day 12 months each initialisation...
Floods are one of the most pervasive and costly natural disasters that result in notable socio-economic impacts. Flood forecasting systems crucial for effective flood risk management, hazard assessment, decision makings. However, accurate modelling events is difficult due to uncertainties meteorological hydrological input variables. Forecasting additionally complicated when floods compound. Conventional forecasts typically consider only driver at a time, whether it ocean, fluvial or pluvial...
<p>In this study we assess the seasonal hydrological forecast skill of river flow persistence across a sample 46 catchments representative Ireland’s diverse range hydrogeological conditions. This statistical approach is straightforward to implement as it uses river’s most recently observed anomaly (calculated over predictor period given duration) its forecasted (for horizon). In our hindcast experiment, evaluated against streamflow climatology...