Heat wave risk of European cities

Green urban areas, and to a certain extent also water areas, contribute to cool the city. It can be expected that a high share of green areas reduces the urban heat island effect and provides access to cooler open space. The actual effect depends however on more variables, like the size distribution and position of the areas, wind pattern etc.

Population density can also be used as an indication for the urban heat island effect. High population desities are associated with the lack of green space, high building mass, high production of anthropogenic heat per area.

Climate-change projections suggest that European summer heatwaves will become more frequent and severe during this century, consistent with the observed trend of the past decades. The most severe impacts arise from multi-day heatwaves, associated with warm night-time temperatures and high relative humidity. Heatwaves include tropical nights (minimum temperature exceeding 20°C) and hot days (maximum temperature exceeding 35°C).

The temperature map is the result of climatic modelling and represents the number of combined tropical nights (T > 20°C) and hot days (T > 35°C). Three different layers for the periods 1961-1990, 2021-2050, 2071 to 2100 are available.

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Find cities with similar climate

This map has been created using The Global environmental stratification. The Global environmental stratification (GEnS), based on statistical clustering of bioclimate data (WorldClim). GEnS, consists of 125 strata, which have been aggregated into 18 global environmental zones (labeled A to R) based on the dendrogram. Interactive map >> Via www.vividmaps.com Related posts: - Find cities with similar climate 2050 - How global warming will impact 6000+ cities around the world?

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Mapping the Hottest Temperatures Ever Recorded on Earth

When summer arrives, it brings not only vacation season but also some of the most extreme heat waves across the globe. While many people associate summer with warm, sunny days, some regions endure scorching temperatures that push the limits of human endurance. To put these extremes into perspective, we’ve mapped the highest temperatures ever recorded in countries around the world. The maps below, created by Vivid Maps , illustrate these record-breaking temperatures and the patterns of extreme heat across the globe. The Hottest Temperature on Record According to historical weather data, the highest reliably recorded temperature on Earth is 56.7°C (134°F) , measured in Death Valley, California , on July 10, 1913 . However, an even higher temperature of 58°C (136.4°F) was reportedly recorded in El Azizia, Libya , on September 13, 1922 . While this Libyan record stood for decades, some meteorologists have questioned its accuracy due to inconsistencies in measurement methods at the ti...

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