Urban Heat Island Prezi

Urban Heat Island: How would decreasing emissions help?

Urban Heat Island: Why does the height of buildings matter?

Made by:Kade Salvo, Brianna Shipley, Antonio Garcia, Mia Stubbs

Decreasing emissions would mainly help to stop the development of previously mentioned climate change and asthma in both humans and the environment. It would also lessen the amount pollution related deaths.

In relation to UHI, the height of buildings matter because it means there is more area where the light can be absorbed into, also having a direct correlation to the building materials.

Building a Better City: What we can do to decrease Urban Heat Island Effect

Urban Heat Island: How do plants impact UHI?

Urban Heat Island: Why do materials effect UHI?

Plants have an impact on UHI by using a few methods. First, they use sunlight for photosynthesis (aka creating glucose and releasing oxygen). Second, they increase the amount of natural shade in an area.

In relation to sunlight and UHI, some materials absorb more light than other materials. These materials can be darker, or just have different physical properties that make them absorb more light.

Urban Heat Island: Ways to improve

• Changing certain building materials
• Changing the height of buildings
• Increasing the amount of plant-life in a given area
• Decreasing emissions
• Etc.

UHI: Plant Life

Urban Heat Island Effect: What is it?

Urban Heat Island: Impact

Urban Heat Island Effect is when an urban area is hotter than the surrounding rural area.

Plant life and UHI are directly connected because in Rural areas where there are an abundance of varying plant life, they have lower temperatures.We can increase the amount of plant life in an area by planting more vegetation.

Urban Heat Island effect causes negative impacts on both the ecosystem and humans themselves.

Urban Heat Island: Environment

Urban Heat Island impacts the environment because, it heats it up causing stress to the plants and animals.

UHI: Emission Decrease

Urban Heat Island:Humans

Urban Heat Island: Building Materials

Decreasing the amount of emissions we give off is important to our health. There are very simple ways we can do this, like carpooling. Also, we can put more money into R&D of renewable energy,so we can begin to be more eco-friendly when powering our cities.

Humans can be impacted from UHI from two main things: the temperature itself and pollution. Humans can very easily suffer from heat related ailments; and, many humans suffer from ailments that pollution has an impact on, such as asthma.

Different building materials have different reflection/absorption properties as shown in the diagram.

Sources:

http://www.gardinergreenribbon.com/heat-island-effect/

http://www.tandfonline.com/doi/abs/10.1080/01944360108976228

https://theconstructor.org/building/types-of-building-materials-construction/699/

http://www.lid-stormwater.net/greenroofs_cost.htm

http://news.energysage.com/how-much-does-the-average-solar-panel-installation-cost-in-the-u-s/

http://www.urbanheatislands.com/

https://www.epa.gov/heat-islands

http://www.sciencedirect.com/science/article/pii/0004698173901406

http://www.g-w.com/pdf/sampchap/9781590703472_ch10.pdf

http://www.exponent.com/services/practices/engineering/buildings--structures/capabilities/construction-materials-wood-concrete-steel/?serviceId=d2eec53f-b212-454f-8696-1fbbcb950934&loadAllByPageSize=true&knowledgePageSize=3&knowledgePageNum=0&newseventPageSize=3&newseventPageNum=0

http://www.conservationtechnology.com/greenroof.html

http://journals.ametsoc.org/doi/abs/10.1175/JAMC-D-11-0228.1

http://www.monolithic.org/homes/home/underground-homes-good-or-bad

https://www.mssanz.org.au/modsim2013/K8/bennet.pdf

https://en.wikipedia.org/wiki/List_of_building_materials

Our Website:

UHI: Ground Housing

https://sites.google.com/s/0B7I7Jj4_5heOQmJPUTNCRVJWWTQ/p/0B7I7Jj4_5heOQjdRYTUxVnFVdzg/edit?authuser=1

In reality, we very well could dig large holes in the earth and use those allocated spaces for work-spaces, housing, etc. However, there are two main problems that would need to be considered while constructing these underground areas. First, insulation of every building is a much bigger priority underground compared to above-ground. Secondly, there are building codes that architects have to follow when building, which especially applies to housing.

UHI: Construction Materials

UHI: Height of Buildings

Some of the most common building materials are: Steel, Concrete, Asphalt, Glass, Plastics, Ceramic, and Wood; each having their own absorption/reflective properties.

UHI: Roofing In particular

Several studies around the globe have shown that if you build higher buildings in metropolitan, urban, and suburban areas, UHI increases. This could be due to more of the Sun's light being absorbed into the larger buildings because they have a larger surface area.

There are two very useful methods of reducing the UHI effect; White roofs, green roofs,and cool roofs.

White roofs:Painting the roof of a building white or another light color to reflect light better

Green roofs:Planting grass and/or a garden on top of a roof to absorb less light

Cool roofs:Economic alternatives that don't transfer heat very quickly

Questions?