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GIS Tool
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Base Layers
Chatham County Boundary
Savannah City Limits
Environmental Layers
The Environmental Team
Maps:
- 5 ft Flood Projection
- Urban Heat Island Effect
- Groundwater Polution
- CO2 Factory Emissions
- Tree Cover
- Sea Level Rise Sensors
- 5 ft Flood Projection
- Urban Heat Island Effect
- Groundwater Polution
- CO2 Factory Emissions
- Tree Cover
- Sea Level Rise Sensors
5ft Flood Projection
This map shows exactly what areas in Savannah that would be affected by a single flood that is 5 feet higher than the longer high-tide line. It is also the new projected shoreline if sea-levels were to rise 5 feet higher than they are now. A 5-foot flood is projected to happen at least once by the year 2080.
Due to Savannah’s low elevation and close proximity to the ocean, chronic flooding and rising water levels are a relevant environmental vulnerability (Surging Seas, 2016). Storm surges cause intense, sudden flooding when strong storms from the ocean make landfall on the cost. These storm surges are projected to only get worse as global warming raises sea levels and produces stronger storms every year. This map, taken from elevation and water-level data available from the National Oceanic and Atmospheric Association (NOAA), shows the areas in and around Savannah that experience flooding in the event of a flood 5 feet above the local normal high tide. According to experts, there is a 23% likelihood of such a flood occurring between now and 2060, and is 100% likely by 2080 (Surging Seas, 2016). This map can be cross-examined with spatial analysis of various social and economic issues to determine which demographics of Savannah would be most impacted by potential sea level rise-induced flooding.
Due to Savannah’s low elevation and close proximity to the ocean, chronic flooding and rising water levels are a relevant environmental vulnerability (Surging Seas, 2016). Storm surges cause intense, sudden flooding when strong storms from the ocean make landfall on the cost. These storm surges are projected to only get worse as global warming raises sea levels and produces stronger storms every year. This map, taken from elevation and water-level data available from the National Oceanic and Atmospheric Association (NOAA), shows the areas in and around Savannah that experience flooding in the event of a flood 5 feet above the local normal high tide. According to experts, there is a 23% likelihood of such a flood occurring between now and 2060, and is 100% likely by 2080 (Surging Seas, 2016). This map can be cross-examined with spatial analysis of various social and economic issues to determine which demographics of Savannah would be most impacted by potential sea level rise-induced flooding.
Economic Layers
The Economics Team
Maps:
- Energy Burden
- Poverty
- Businesses
- Flood Insurance
- Unemployment
- Electricity Consumption by Zipcode
- Electricity Consumption by Zipcode (Normalized)
- Energy Burden
- Poverty
- Businesses
- Flood Insurance
- Unemployment
- Electricity Consumption by Zipcode
- Electricity Consumption by Zipcode (Normalized)
Energy Burden by Census Track
This map shows the energy burden by census track in Bryan, Chatham, and Effingham counties (Greenlink, 2020). The energy burden is calculated by the amount of electricity and gas consumed compared to the household median income.
Household energy burden is defined as a large portion of the house income that is spent in home energy bills, including electricity, gas, and other heating fuels (US Department of Energy, 2018).
Low-income households suffer a disproportionate energy burden - the national average energy burden for low-income households is 0.086 (8,6%), which is three (3) times higher than for non-low-income households (US Department of Energy, n.d.).
Low-income Georgians face high energy burden despite having some of the lowest energy rates in the United States (ACEE, n.d.).
Household energy burden is defined as a large portion of the house income that is spent in home energy bills, including electricity, gas, and other heating fuels (US Department of Energy, 2018).
Low-income households suffer a disproportionate energy burden - the national average energy burden for low-income households is 0.086 (8,6%), which is three (3) times higher than for non-low-income households (US Department of Energy, n.d.).
Low-income Georgians face high energy burden despite having some of the lowest energy rates in the United States (ACEE, n.d.).
Social Equity Layers
The Social Equity Team
Maps:
- Food Deserts
- Supplemental Nutrition Assistance Program (SNAP)
- Groceries
- Crime
- Housing Burden
- Libraries
- Schools + Education
- Percent of African Americans
- Food Deserts
- Supplemental Nutrition Assistance Program (SNAP)
- Groceries
- Crime
- Housing Burden
- Libraries
- Schools + Education
- Percent of African Americans
Food Deserts
This map shows low-income census tracts where a significant portion of the population has low-access to grocery stores and supermarkets. A darker red represents a higher percentage of the population with low-access to grocery stores and supermarkets.
The USDA defines food desert census tracts as: Low-income census tracts where a significant number (at least 500 people) or share (at least 33 percent) of the population is greater than 1.0 mile from the nearest supermarket, supercenter, or large grocery store for an urban area or greater than 10 miles for a rural area. Low income census tracts are any tract where: The tract’s poverty rate is 20 percent or greater; or the tract’s median family income is less than or equal to 80 percent of the State-wide median family income; or the tract is in a metropolitan area and has a median family income less than or equal to 80 percent of the metropolitan area's median family income. It is important to note that a food desert by USDA definition is low access and low income (USDA, 2015).
Access to affordable, healthy foods is an important indicator of a community’s health and well-being. By mapping this data, we can see which areas of Savannah need assistance in accessing nutritious food, either by increasing accessibility to grocery stores, or by offering more affordable options.
The USDA defines food desert census tracts as: Low-income census tracts where a significant number (at least 500 people) or share (at least 33 percent) of the population is greater than 1.0 mile from the nearest supermarket, supercenter, or large grocery store for an urban area or greater than 10 miles for a rural area. Low income census tracts are any tract where: The tract’s poverty rate is 20 percent or greater; or the tract’s median family income is less than or equal to 80 percent of the State-wide median family income; or the tract is in a metropolitan area and has a median family income less than or equal to 80 percent of the metropolitan area's median family income. It is important to note that a food desert by USDA definition is low access and low income (USDA, 2015).
Access to affordable, healthy foods is an important indicator of a community’s health and well-being. By mapping this data, we can see which areas of Savannah need assistance in accessing nutritious food, either by increasing accessibility to grocery stores, or by offering more affordable options.
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