Uploaded on 2015-12-14 by AmonaOmer

UHI effect in London, United Kingdom London was recorded to have reached 10 degrees higher than its surrounding rural area. UHI has also been recorded to add 5-6 degrees to the night time temperatures. Reference: http://climatelondon.org.uk/climate-change/heatwaves/ ![Yellow Fields, London][1] The following images both taken in London are highly contrasting. Fields This field has no build stock around. Its contribution to the UHI will be significantly lower in value than that of built up inner London. Unlike the inner city it is less likely that there will be a significant impact of anthropogenic emissions. Inner City This part of London has a high level of build stock. In contrast to the field there is a significantly higher level of anthropogenic emissions. Higher aspect ration and vast surface fabrics invite multiple diffuse specular such as radiation from the sun to be captured and trapped in the narrow streets. Higher temperatures in the summer months in between buildings may encourage the use of anomalous heat sources. Further adding to the UHI. ![Shard and the one next door][2] 3. Which are the measures you would propose? I would propose that vital aspects such as ratio aspect for new builds/retrofits be considered well. Where there are expansive areas for regeneration proposed in inner city sites, serious considerations such as the geometry of both building and surrounding urban fabric should be taken. Encouraging designers to seek independence of energy resources thereby moving further away from dependence on the use national energy source and benchmarks. Interdisciplinary approaches should be encouraged from early on in the design process i.e. urban designers/planners/architects /engineers and all those involved in the initial design process to collaborate closely with climate services to allow for an open source of data and expertise conversation and interpretation further aiding the chance of a smarter smartly designed site. Other measures good be reward regeneration initiatives, which increase the total surface areas with foliage, green areas and water features. 4. Is UHI effect concerning policy making in your area? Do you know of policies in your community that are planned to reduce the UHI effect? Provide us with information regarding any visible results. There are many existing organisations in London with visions to tackle climate change. London Climate Change Partnership for instance is a centre, which drives forward awareness of climate including that of UHI. Part of its vision to tackle the negative effects of UHI is to support the London Mayor in meeting targets such as • Increasing tree cove by 5% by 2025 • Increasing green cover by 5% by 2030 • Promote retrofit guidance • Creating a network of weather stations who focus on understading the microclimate Figures taken from http://climatelondon.org.uk/climate-change/heatwaves/ [1]: https://edxuploads.s3.amazonaws.com/14500510368753527.jpg [2]: https://edxuploads.s3.amazonaws.com/14500510733244648.jpg