George Zittis
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View article: The land use-climate change-biodiversity nexus in the perceptions of European islands stakeholders
The land use-climate change-biodiversity nexus in the perceptions of European islands stakeholders Open
View article: Streamflow Projections in Valgrosina Valley: Climate Change Calls for Adaptation in the Alpine Region
Streamflow Projections in Valgrosina Valley: Climate Change Calls for Adaptation in the Alpine Region Open
Climate change is increasingly impacting mountainous regions, emphasising the need for reliable streamflow projections to support adaptive hydropower management. This study focuses on the Valgrosina Valley (Northern Italy) with two main ob…
View article: Increased risk of heat extremes in the Eastern Mediterranean during weak Indian summer monsoon years
Increased risk of heat extremes in the Eastern Mediterranean during weak Indian summer monsoon years Open
Heat extremes in the eastern Mediterranean have increased 3-fold in the last decade, posing a severe threat to human health, socio-economic activities and ecosystems. During summer, northerly winds, called Etesians, can contribute to mitig…
View article: Assessing Seasonal Climate Forecasts to PredictTemperature-Related Mortality in Cyprus
Assessing Seasonal Climate Forecasts to PredictTemperature-Related Mortality in Cyprus Open
Seasonal climate predictions offer an important opportunity to anticipate weather patterns several months ahead, enabling proactive planning and risk management across sectors that are sensitive to climate variability, including agricultur…
View article: Insular ecosystem services in peril: a systematic review on the impacts of climate change and other drivers
Insular ecosystem services in peril: a systematic review on the impacts of climate change and other drivers Open
Islands around the world are disproportionately affected by climate change, and their adaptive capacity is generally lower than that of mainland areas. Ecosystems play a vital role in supporting the well-being of island communities; howeve…
View article: Evaluating the Performance of Objective Functions and Regional Climate Models for Hydrologic Climate Change Impact Studies: A Case Study in the Eastern Mediterranean
Evaluating the Performance of Objective Functions and Regional Climate Models for Hydrologic Climate Change Impact Studies: A Case Study in the Eastern Mediterranean Open
The robustness of hydrological models used in projections of future fresh water resources is compromised due to non-stationary climate conditions. This study aims to (i) develop a method for selecting a skillful hydrological model paramete…
View article: A new efficiency metric for the spatial evaluation and inter-comparison of climate and geoscientific model output
A new efficiency metric for the spatial evaluation and inter-comparison of climate and geoscientific model output Open
Developing and evaluating spatial efficiency metrics is essential for assessing how well climate or other models of the Earth’s system reproduce the observed patterns of variables like precipitation, temperature, atmospheric pollutants, an…
View article: Health Impacts of Extreme Temperature Events in Cyprus: Insights from a Mediterranean Climate Change Hotspot
Health Impacts of Extreme Temperature Events in Cyprus: Insights from a Mediterranean Climate Change Hotspot Open
The Mediterranean region, recognized as a hotspot for climate change, is experiencing significant warming and drying, with the Eastern Mediterranean facing particularly severe impacts. This study focuses on Cyprus, a Mediterranean island, …
View article: From cause to consequence: examining the historic April 2024 rainstorm in the United Arab Emirates through the lens of climate change
From cause to consequence: examining the historic April 2024 rainstorm in the United Arab Emirates through the lens of climate change Open
In April 2024, the United Arab Emirates experienced unprecedented rainfall, triggering severe flooding and widespread disruption. Here we investigate the driving mechanisms, localized impacts, and potential influence of human-driven climat…
View article: Mediterranean Cyclones in a Changing Climate: A Review on Their Socio‐Economic Impacts
Mediterranean Cyclones in a Changing Climate: A Review on Their Socio‐Economic Impacts Open
The Mediterranean Basin, renowned for its cultural, ecological, and climatic significance, frequently endures high‐impact weather events driven by Mediterranean cyclones (Medcyclones), atmospheric low‐pressure systems characterized by coun…
View article: Steeply Rising Anthropogenic Pollution Emissions in the Middle East: Air Quality and Climate Impacts
Steeply Rising Anthropogenic Pollution Emissions in the Middle East: Air Quality and Climate Impacts Open
View article: Climate land use and other drivers' impacts on island ecosystem services: A global review
Climate land use and other drivers' impacts on island ecosystem services: A global review Open
Islands are diversity hotspots and vulnerable to environmental degradation, climate variations, land use changes and societal crises. These factors can exhibit interactive impacts on ecosystem services. The study reviewed a large number of…
View article: Climate land use and other drivers impacts on island ecosystem services: a global review
Climate land use and other drivers impacts on island ecosystem services: a global review Open
Islands are diversity hotspots and vulnerable to environmental degradation, climate variations, land use changes and societal crises. These factors can exhibit interactive impacts on ecosystem services. The study reviewed a large number of…
View article: Identification of climate change hotspots in the Mediterranean
Identification of climate change hotspots in the Mediterranean Open
The Mediterranean region has long been identified as a climate change hotspot. However, within the Mediterranean, there are smaller sub-areas that exhibit a higher risk of climate change and extremes. Previous research has often focused on…
View article: Accelerated Historical and Future Warming in the Middle East and North Africa
Accelerated Historical and Future Warming in the Middle East and North Africa Open
The present study assesses the climate of the Middle East and North Africa (MENA) in detail, focusing on the historical and future warming trends in the region. The assessment incorporates data from observations, reanalyses, and statistica…
View article: Advancing Hydrologic Modelling Through Bias Correcting Weather Radar Data: The Valgrosina Case Study in the Italian Alps
Advancing Hydrologic Modelling Through Bias Correcting Weather Radar Data: The Valgrosina Case Study in the Italian Alps Open
The urgency of understanding the intricate input–output relationships of the hydrologic cycle is amplified by the accelerating climate change impacts in mountain environments. This study focuses on optimising water resource management of a…
View article: A Global Analysis of Historical and Future Changes in Mediterranean Climate‐Type Regions
A Global Analysis of Historical and Future Changes in Mediterranean Climate‐Type Regions Open
Mediterranean climate‐type regions (MCRs) are characterised by warm‐to‐hot dry summers and mild‐wet winters. These regions are typically found on the western or southern edges of continents, for example, in the Mediterranean Basin, the wes…
View article: Bias correction of daily precipitation from climate models, using the Q‐GAM method
Bias correction of daily precipitation from climate models, using the Q‐GAM method Open
Climate models are useful tools for analyzing historical and projecting future climate conditions. However, the model results tend to differ systematically from observations, particularly for parameters with complex spatial and temporal di…
View article: Climate change and extremes in the Mediterranean island of Cyprus: from historical trends to future projections
Climate change and extremes in the Mediterranean island of Cyprus: from historical trends to future projections Open
Cyprus is a European island state in the eastern Mediterranean climate change hotspot. Despite being a relatively small island, it has diverse climatic zones, ranging from semi-arid to subhumid in the mountains and humid on Mount Olympos. …
View article: Seasonal Data Evaluation in MED-HOT Index Hotspots: A Climatological Perspective on Mediterranean Subregions
Seasonal Data Evaluation in MED-HOT Index Hotspots: A Climatological Perspective on Mediterranean Subregions Open
Climate change has a noticeable impact on the Mediterranean region, causing changes in the seasonal patterns and yearly variations of important meteorological variables along with the occurrence, strength, duration, and timing of unusual a…
View article: Multivariate adjustment of drizzle bias using machine learning in European climate projections
Multivariate adjustment of drizzle bias using machine learning in European climate projections Open
Precipitation holds significant importance as a climate parameter in various applications, including studies on the impacts of climate change. However, its simulation or projection accuracy is low, primarily due to its high stochasticity. …
View article: Comment on egusphere-2024-45
Comment on egusphere-2024-45 Open
Abstract. Precipitation holds significant importance as a climate parameter in various applications, including studies on the impacts of climate change. However, its simulation or projection accuracy is low, primarily due …
View article: Simulations of energy and water balances with WRF and WRF-Hydro models: the role of model coupling and parameterizations
Simulations of energy and water balances with WRF and WRF-Hydro models: the role of model coupling and parameterizations Open
We tested the widely used atmospheric WRF (Weather Research and Forecasting) model in a coupled mode to the hydrological model WRF-Hydro. The coupled WRF/WRF-Hydro model adds the simulation of horizontal surface and subsurface flow of wate…
View article: Climate change and islands’ ecosystem services: a global meta-analysis 
Climate change and islands’ ecosystem services: a global meta-analysis  Open
Islands are hotspots of biological and cultural diversity, which, compared to mainlands, are more vulnerable to environmental degradation, climate change, uncontrolled land use changes and financial or societal crises. Particularly when co…
View article: Evaluation of precipitation and ITCZ characteristics in CMIP6 models
Evaluation of precipitation and ITCZ characteristics in CMIP6 models Open
The Intertropical Convergence Zone (ITCZ) is a band of low pressure near the equator, where the trade winds converge. It is usually accompanied by cloudiness and heavy precipitation, and it migrates northward and southward, following the s…
View article: Multivariate adjustment of drizzle bias using machine learning in European climate projections
Multivariate adjustment of drizzle bias using machine learning in European climate projections Open
Precipitation holds significant importance as a climate parameter in various applications, including studies on the impacts of climate change. However, its simulation or projection accuracy is low, primarily due to its high stochasticity. …
View article: Modeling of carbonaceous aerosols for air pollution health impact studies in Europe
Modeling of carbonaceous aerosols for air pollution health impact studies in Europe Open
View article: Enhancing Small-Medium IsLands resilience by securing the sustainability of Ecosystem Services: the SMILES Cost Action
Enhancing Small-Medium IsLands resilience by securing the sustainability of Ecosystem Services: the SMILES Cost Action Open
European islands are hotspots of biological and cultural diversity, which, compared to mainland, are more vulnerable to climate change, tourism development, uncontrolled land-use changes and the consequences of financial crisis. These driv…
View article: Emerging extreme heat conditions as part of the new climate normal
Emerging extreme heat conditions as part of the new climate normal Open
As a result of global warming, extreme heat conditions have become more frequent and severe. This will likely continue or accelerate in the future, particularly under high radiative forcing scenarios. In the present study, based on an ense…
View article: Bias Correction of Daily Precipitation on Two Eastern Mediterranean Stations with GAMs
Bias Correction of Daily Precipitation on Two Eastern Mediterranean Stations with GAMs Open
Climate models are fundamental tools for assessing historical climate conditions and projecting future ones. However, the results often differ systematically from observational data. The minimization of these differences is known as bias c…