Urban Heat Island (UHI)

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Presentation transcript:

Urban Heat Island (UHI) Steven Goluska

https://www.youtube.com/watch?v=4SihdPRRMPI

Bubble of heat formed over a city

What is the UHI Effect?

What is the UHI Effect?

What causes the UHI Effect Increase in dark materials to trap heat and reradiate later Increase in thermally conductive materials Decrease in vegetation Decrease in surface water

Effects on clouds

UHI Effect on rain

High pressure systems lock in heat

UHI Effect or Heat Wave UHI Heat Wave Anthropogenic (human caused) Caused by building materials and vegetation/ surface water loss. Only occurs in urban environments. Natural Caused by high pressure systems staying in place. Can happen in urban or natural environments

Is UHI Effect a true problem?

Is UHI Effect a true problem?

Is UHI Effect a true problem?

Is UHI Effect a true problem?

Is UHI Effect a true problem? About ½ the human population on Earth dwell in cities. 1 Large cities across the globe. Data interpretation issues? Potential other effects on a broader scale?

How can we mitigate the UHI Effect? Reflective materials Environmental heat sinks Increase parks and planted environments Road colors Roof top gardens

Teaching through investigation Needed materials

Teaching through investigation Data gathering Take temps at dots, also let students take temps anywhere else they would like.

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Referances 1- TWO DECADES OF URBAN CLIMATE RESEARCH: A REVIEW OF TURBULENCE, EXCHANGES OF ENERGY AND WATER, AND THE URBAN HEAT ISLAND. A. JOHN ARNFIELD (2002) Mitigating the Urban Heat Island effect through building envelope modiﬁcations. Anurag, Kandya a, Manju, Mohan b

Questions