Ajax Urban Development Utilizing NASA Earth Observations to Assess - - PowerPoint PPT Presentation

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Ajax Urban Development Utilizing NASA Earth Observations to Assess - - PowerPoint PPT Presentation

National Aeronautics and Space Administration Ajax Urban Development Utilizing NASA Earth Observations to Assess Urban Forest as an Adaptation Strategy for Extreme Heat in Ajax, ON, Canada Presented by: Lance Watkins Project Team:


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National Aeronautics and Space Administration

Eleanor Dhuyvetter Huntington Keith Dean Blumenfeld

Ajax Urban Development

Utilizing NASA Earth Observations to Assess Urban Forest as an Adaptation Strategy for Extreme Heat in Ajax, ON, Canada

Elizabeth Dyer

Presented by: Lance Watkins

Project Team:

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What is DEVELOP?

DEVELOP addresses environmental and public policy issues through interdisciplinary feasibility studies that apply the lens of NASA Earth observations to community concerns around the globe. Bridging the gap between NASA Earth Science and society, DEVELOP projects build capacity in both participants and partner organizations to better prepare them to address the challenges that face our society and future generations.

NASA Earth Science DEVELOP Decision Makers

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Project Characteristics

All DEVELOP projects share these core characteristics:

 Highlight the applications and capabilities of NASA Earth observations  Address actionable real-world environmental issues  Partner with decision-making organizations  Conducted by interdisciplinary teams under guidance of DEVELOP Science Advisors  Create a comprehensive set of deliverables (Project Summary, Poster, Presentation, Technical Report, Video, Imagery, Shapefiles)  Take place in just 10 weeks during three terms a year (spring, summer, and fall)  Align with one of the Applied Sciences Program’s 8 application areas

Disasters Health & Air Quality Ecological Forecasting Agriculture & Food Security Energy Urban Development Transportation & Infrastructure Water Resources

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Ajax Urban Development

 Ajax, Ontario, Canada  Population: 120,000  Study Period: January 2000 – December 2016

Partners

 Town of Ajax, Operations & Environmental

Services

 Great Lakes and St. Lawrence Cities Initiative  Arizona State University, Urban Climate

Research Center

Durham Region Toronto Ajax Lake Ontario

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Community Concerns

 Recent extreme weather events have

impacted the health of Ajax’s urban forest and led to a reduction in overall tree coverage.

 Maintaining the health of Ajax’s urban forest

is essential.

 Changing conditions could challenge the

ability of Ajax and surrounding municipalities to grow or maintain tree coverage needed to build community resilience to extreme heat.

Image Credit Town of Ajax: Operations & Environmental Service

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Objectives

 Analyze tree arrangement at the block scale  Forecast tree stress based on projected changes in weather patterns  Identify locations where Ajax residents are most vulnerable to extreme heat  Assess the extent and magnitude of extreme heat throughout Ajax  Estimate tree canopy cover and throughout Ajax

Image Credit Town of Ajax: Operations & Environmental Service

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Data

Landsat 8 Landsat 5

NASA Satellites: Other Datasets:

 PlanetScope high resolution imagery  Orthoimagery provided by Town of

Ajax, Operations & Environmental Services

 SENES Consultants Durham Region

Future Climate prediction results

 Daymet V3  Census of Canada

Image Credit: NASA

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Land Cover Classification

2016 Land Cover Classification

 Land cover analysis can

differentiate small scale urban features

 Produce a more

accurate tree canopy assessment

 Can be a useful input in

local climate models

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Urban Heat: Surface Temperature

 Surface temperatures

varied greatly from year to year

 Urban core was

consistently hotter than surrounding area

< 22 ° C > 35 ° C

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 Forested regions

surrounding the urban core experienced greatest variation

 Tree canopy cover

throughout urban core was consistently low (< 10% tree canopy cover)

Tree Canopy Estimates

< 10% > 90%

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Areas of Concern

Social Vulnerability Index 2016 Land Surface Temperature

Low Moderately Low Moderate Moderately High High

< 20 C < 23 C < 25 C < 27 C < 33 C

< 20 ° C < 23 ° C < 25 ° C < 27 ° C < 33 ° C

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This material is based upon work supported by NASA through contract NNL16AA05C and cooperative agreement NNX14AB60A. Any mention of a commercial product, service, or activity in this material does not constitute NASA endorsement. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Aeronautics and Space Administration and partner organizations.

Acknowledgements

The authors would like to thank:

Great Lakes & St. Lawrence Cities Initiative: Simon Belisle, Melissa Soline, Dave Ullrich Town of Ajax: Gary Muller, Jade Schofield Project Advisors:

  • Dr. David Hondula, Arizona State University, DEVELOP Arizona Advisor
  • Dr. Qunshan Zhao, Arizona State University, DEVELOP Arizona Advisor

Peter Crank, Arizona State University, Ph.D. Student and Research Assistant

  • Dr. Kenton Ross, National Science Advisor, DEVELOP National Project Office