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2018 Study - Results and Resources

The 2018 Urban Tree Canopy Assessment and Change Analyis study is a continuation of efforts by the City of Atlanta to better understand its ever changing urban tree canopy. 2018 study results are summarized through our online apps and Story Maps. Click an image below to go directly to one of the 2018 Atlanta UTC Study applications.

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UTC Story Map

City of Atlanta 2018 Urban Tree Canopy Story Map

This guided presentation showcases the history, methods and results of 2018 Atlanta Urban Tree Canopy Assessment and Change Analysis. Walk yourself through the project and read about Atlanta's urban tree canopy changes between 2008 and 2018. See statistics and metrics for the 2018 Urban Tree Canopy in the City of Atlanta, with discussions regarding the implications of land cover and canopy change between 2008 - 2018.

Highlights include canopy change photos taken on site, interactive maps showing 2018 canopy and 2008-2018 canopy change statistics by local area, and links to data dashboards showing tree-based ecosystem benefits across the city.

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Interactive UTC App

Interactive 2018 Urban Tree Canopy Map App

Dive further into the data with this interactive mapping application. Datasets developed from 2008 and 2018 canopy studies are linked to common geographic boundaries like neighborhoods and council districts. Search your area of interest for 2018 and/or 2008-2018 canopy values, create canopy charts, view 2018 ecosystem benefit estimates, or simplay take a closer look at the satellite imagery from which the canopy layers were derived.

Start exploring City of Atlanta 2018 canopy data here – view 2018 and 2008-2018 canopy values for your area of interest, view different basemaps, add you own data to the map. Even print your own map as a PDF for easy sharing.

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Canopy Change Viewer

2008 - 2018 Canopy Change Viewer

Explore selected areas in Atlanta that have lost or gained more than 1 acre in canopy between 2008-2018. Using a "Swipe" application, viewers can overlay 2018 satellite imagery with 2008 imagery to view canopy changes across the city. This mapping application highlights how quickly growth and loss of canopy occurs in the city.

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Site Visit Explorer

2018 Site Visit Explorer

Part of the data-validation process used for the 2018 tree canopy update involves field verification of changes identified in the satellite imagery. The research team visited over 100 locations throughout the city to confirm trends and changes identified during the analysis – this application showcases some of the areas displaying the most drastic change since 2008.

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Ecosystem Service Estimate Dashboards

Ecosystem Services Dashboards

Using conversion factors developed by the USDA Forest Service and available through their online tool, I-Tree Canopy, the project team calculated estimates of Atlanta's carbon, air pollution and hydrological ecosystem service benefits provided by the city's urban tree canopy. The results of these 2018 ecosystem service benefit estimates ae presented in an ESRI data dashboard.

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Potential Planting Tools

Potential Planting Story Map and Resources

This Story Map provides resources to identify potential planting sites across the city. Using results from 2018 urban tree canopy assessment, the project team developed a Potential Planting Index that ranks areas of the city based on the ratio of urban tree canopy to non-tree vegetation. Areas with less canopy and more non-tree vegetation can potentially serves as tree planting sites. Resources linked within this Story Map provide guides for quickly assessing areas of the city for tree planting.

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Tutorials

Canopy Assessment Tools Tutorials

This Story Map provides links to video tutorials for each of the 2018 web mapping applications. Learn how to run queries, create charts, and make personalized maps in the 2018 UTC Interactive Map. Learn how to view pictures from 2018 site visits and examine canopy change between 2008 - 2018 using the Site Vists and Canopy Change Story Maps. Check out the videos on the Potential Planting Index and 2018 Ecosystem Benefit Estimates Dashboard.

2014 Study - Results and Resources

Continued efforts from the project team focused on analyzing canopy change reveal trends and patterns in the loss and gain of Atlanta’s Urban Tree Canopy (UTC). Results are summarized through our online apps and story maps. Click an image below to go directly to one of the 2014 Atlanta UTC Study applications.

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UTC Story Map

Atlanta 2014 UTC Story Map

This guided presentation showcases the history and methods of Atlanta tree canopy classification. Step through the project timeline and read about the results of comparing imagery from 2008 and 2014. See statistics and metrics for the Urban Tree Canopy in the City of Atlanta, with discussions regarding the implications of land cover and canopy change.

Highlights include an overview of the land cover classification process using satellite imagery, from raw imagery to classification and finally aggregation to cell study areas and other geographic boundaries.

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Interactive UTC App

Interactive 2014 UTC App

After learning about the history and process of the Atlanta Urban Tree Canopy project, dive further into the data with this useful mapping application. Datasets developed from 2008 and 2014 classified canopy studies are linked to common geographic boundaries like neighborhoods and council districts. Filter through data layers, create charts and graphs of canopy cover values, or take a closer look at the raw imagery.

Start exploring Atlanta canopy data here – change visible layers, filter results, view different basemaps, and add you own data to the map. Results can be saved to PDF for easy sharing.

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Canopy Change Viewer

Canopy Change Viewer (08-14)

Read about some key points of the Atlanta UTC project before exploring satellite imagery to detect changes to the landscape. Imagery from 2008 serves as the basemap, with a spyglass viewer revealing the 2014 land cover. Finished with a brief summary of the 2008-2014 change analysis, this mapping application highlights how quickly both grown of canopy and development of land occurs in the city.

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Site Visit Explorer

Site Visit Explorer 2014

Part of the data-validation process used for the 2014 tree canopy update involves boots-on-the-ground verification of changes identified in the satellite imagery. The research team visited 150 locations throughout the city to confirm trends and changes identified during the analysis – this application showcases some of the areas displaying the most drastic change since 2008.

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City Canopy Comparison

City Canopy Comparison

Results from the 2008 Urban Tree Canopy Analysis placed Atlanta at the top of the list for canopy cover for similarly sized urbanized cities – the lush ecosystem and mixture of hard and softwoods native in the southeast contribute to Atlanta’s extraordinary canopy cover. Atlanta’s city limits are superimposed over other select cities to show landscape and canopy variation in this map application.

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2014 UTC Report

2014 UTC Assessment Final Report

This report provides a comprehensive analysis of the 2nd City of Atlanta Urban Tree Canopy study - from calculaing 2014 urban tree canopy to understanding canopy change between 2008 - 2014.

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City Canopy Comparison

2014 Executive Summary

The 2014 UTC Executive Summary highlights findings from the 2014 final report, including 2014 city-wide UTC percentages and change trends observed in the canopy between 2008 - 2014.

2008 Study - Results and Resources

Researches at Georgia Tech have studied greenspace in the City of Atlanta since 1999. The first city-wide tree canopy study used imagery from 2008 to draw conclusions about the state of the Urban Tree Canopy (UTC) in Atlanta. Click an image below to learn more about the first UTC study.

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2008 UTC Assessment Final Report

2008 UTC Assessment Final Report

This report provides a comprehensive analysis of the original Urban Tree Canopy study - from introducing the benefits of urban trees to pinpointing target areas for planting more trees.

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Urban Tree Canopy Interactive Map

2008 Urban Tree Canopy Interactive Map

This map shows all the layers associated with evaluating Atlanta's tree canopy, including Urban Tree Cover, Watersheds, Atlanta Neighborhoods, City Council Districts, and much more!

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UTC Assessment Story Map

2008 UTC Assessment Story Map

Want to see how Atlanta's urban tree canopy stacks up next to other major U.S. cities? Scroll through this story map to see a condensed version of the UTC Assessment Final Report.

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Trees Atlanta Interactive Map

2008 Trees Atlanta Interactive Map

If the UTC Assessment interactive map is too overwhelming, try exploring this interactive map, where you can turn layers off and on at will. You can also type in your address to see your neighborhood in the context of the UTC Assessment!

About

The Georgia Tech Center for Spatial Planning Analytics and Visualization (formerly the Center for Geographic Information Systems) has a storied history of developing tools for remote sensing and geospatial analysis. For nearly 30 years, the Center has collaborated with educational institutions, state and local governments, and nonprofits to deliver top quality GIS products and services. After partnering with the Atlanta's City Planning Department to develop a baseline land cover and tree canopy estimate in 2008, two updates have since been completed, with the 2nd in 2014 and the 3rd in 2018. Tracking change across the years allows for a better understanding of Atlanta's ever changing urban treee canopy.