Atmospheric Rivers from a Compound Event Perspective

Guest blog by Alexandre Ramos, Instituto Dom Luiz, Portugal An Atmospheric River (AR) is a long, narrow, and transient corridor of strong horizontal water vapour transport that is typically associated with a low-level jet stream ahead of the cold front of an extratropical cyclone. The water vapour in ARs is supplied by tropical and/or extratropical moisture … Continue reading Atmospheric Rivers from a Compound Event Perspective

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

When rivers flood, surrounding rivers often flood at the same time.

Guest Blog by Wouter Berghuijs (orcid) Frequent readers of this blog may be aware that different natural hazards often happen at the same time; periods of drought may coincide with periods of extreme heat, and very strong winds can come with extreme precipitation. However, it is probably even more common that one type of hazard … Continue reading When rivers flood, surrounding rivers often flood at the same time.