Atmospheric mechanisms triggering concurrent drought and heat wave events in summer over northeastern Brazil

Guest blog by Hakki BaltaciTechnical University of Gebze, Turkey Variations and atmospheric bottom mechanisms triggering simultaneous drought and heat wave events is a phenomenon of natural origin that affects approximately 1.5 billion people and is responsible for one third of all impacts of natural disasters. The Northeast of Brazil (NEB) is one of the regions … Continue reading Atmospheric mechanisms triggering concurrent drought and heat wave events in summer over northeastern Brazil

Potential effects of climate change on fires in the Balkan area

Guest blog by Milan Gazdic , University of Belgrade (Serbia) In Montenegro, forests and forest land occupy approximately 70% of the territory of the country. Montenegro forests provide many benefits and services to society, including clean water and air, recreation, wildlife habitat, carbon storage, climate regulation, and a variety of forest products. Climate influences the … Continue reading Potential effects of climate change on fires in the Balkan area

The compound event of heavy rainfall combined with snow-melt in southern Norway

Guest blog by Benjamin Poschlod Southern Norway is regularly exposed to floods triggered by heavy precipitation and snow-melt. A combination of high temperature leading to snow-melt and heavy rainfall is an example of a compound event, which leads to severe flooding when run-off due to snow-melt adds to river discharge from the rainfall. These compound … Continue reading The compound event of heavy rainfall combined with snow-melt in southern Norway

Investigating climate change impact on Rain-On-Snow events

Guest blog by Cenk Sezen Rain-on-snow events Rain-on-snow (ROS) floods, that is, the combined occurrence of snowmelt and rainfall events can cause huge economic impacts and endanger human lives due to a significant increase in the magnitude of runoff compared to only snowmelt or only rainfall events. Forecasting of ROS floods is difficult because of … Continue reading Investigating climate change impact on Rain-On-Snow events

Towards a categorisation of statistical methods to study compound events

Many extreme impacts on society are caused by compound events, which were recently defined as a combination of multiple drivers and/or hazards contributing to societal or environmental risk. Compound events include, for example, concurring precipitations and storm surges causing flooding along low-lying coastal areas; heatwaves enhanced by drought conditions; strong wind episodes combined with drought … Continue reading Towards a categorisation of statistical methods to study compound events

Medicanes: tropical-like-cyclones in the Mediterranean Sea and their uncertain fate with climate change

Guest blog by Davide Faranda, M. Carmen Alvarez Castro Mediterranean cyclones or "medicanes" Windstorms, extreme precipitations and instant floods seems to strike the Mediterranean area with increasing frequency. These events occur simultaneously (compound extreme events) during powerful tropical-like Mediterranean cyclones, also called medicanes. Medicanes are mesoscale cyclones with a diameter usually smaller than 300 km, … Continue reading Medicanes: tropical-like-cyclones in the Mediterranean Sea and their uncertain fate with climate change