Canicule

Canicule is a term used to describe a prolonged period of excessively hot weather, typically accompanied by high humidity. While the exact definition can vary by region and meteorological organization, it generally signifies weather conditions that pose a significant risk to human health and infrastructure. These events are often characterized by temperatures that remain elevated both day and night, preventing the body from cooling down effectively.

The causes of canicule are primarily linked to atmospheric conditions that trap heat. High-pressure systems can lead to the stagnation of air, allowing temperatures to build up over several days. Factors such as solar radiation, lack of cloud cover, and urban heat island effects can exacerbate these conditions. Climate change is also believed to be increasing the frequency and intensity of canicules in many parts of the world.

The impacts of canicule are far-reaching. Health risks include heatstroke, dehydration, and the exacerbation of pre-existing conditions, particularly for vulnerable populations like the elderly, young children, and those with chronic illnesses. Infrastructure can also be affected, with increased demand on power grids for cooling and potential damage to roads and railways due to extreme heat. Agriculture can suffer from crop damage and water scarcity. Preparedness measures and public health advisories are crucial for mitigating the negative consequences of canicule events.