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Earth observation for quantifying urban growth and its application to sustainable city development

Earth observation for quantifying urban growth and its application to sustainable city development
Earth observation for quantifying urban growth and its application to sustainable city development
Urban areas are predicted to triple by 2030 in accommodating 68% of the global population, with anthropogenic landscape modifications to impervious surfaces established as a critical driving force in local and global climate change. Accurate temporal monitoring of urban expansion and subsequent environmental issues are essential for ensuring the future sustainability of our cities. In particular the urban heat island effect is considered one of the major problems posed to humans in the 21st century associated with detrimental health impacts and increased energy demand, emissions, water output and economic expenditure. Yet, alongside a uniform modelling omission from global climate models, mitigation of the urban heat island effect lacks a global standardised framework, representative data for modelling impacts, and robust academic outputs for policy incorporation. These limitations are precluding effective data-informed governance. 
This thesis presents a holistic policy-applicable approach for accurately monitoring and sustainably planning (re)development in relation to metropolitan and local level urban temperature dynamics. This is achieved through generating land cover maps from Earth observation data using a temporally consistent methodology with refinements to urban estimates based upon comparison to high resolution imagery. Variations between changes in land cover and land surface temperature are determined at the metropolitan level to aid sustainable urban growth plans. Temperature is then minimised at the local level through a modelling approach to optimally place vegetation with a proposed new development. The application area for this thesis is the Perth Metropolitan Region in Western Australia which has experienced sustained outward,non-strategic and low density expansion in response to booming natural resource sector. The presented methodology makes progress to aligning urban heat island mitigation efforts with global targets including the United Nation’s Sustainable Development Goals and New Urban Agenda, providing a reproducible method, transferable to other global metropolitan regions to improve sustainable city planning.
University of Southampton
MacLachlan, Andrew, Charles
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MacLachlan, Andrew, Charles
7256882c-d3c7-4bd9-99e7-e2a5e4b5ed75
Roberts, Gareth
fa1fc728-44bf-4dc2-8a66-166034093ef2
Biggs, Eloise
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MacLachlan, Andrew, Charles (2018) Earth observation for quantifying urban growth and its application to sustainable city development. University of Southampton, Doctoral Thesis, 227pp.

Record type: Thesis (Doctoral)

Abstract

Urban areas are predicted to triple by 2030 in accommodating 68% of the global population, with anthropogenic landscape modifications to impervious surfaces established as a critical driving force in local and global climate change. Accurate temporal monitoring of urban expansion and subsequent environmental issues are essential for ensuring the future sustainability of our cities. In particular the urban heat island effect is considered one of the major problems posed to humans in the 21st century associated with detrimental health impacts and increased energy demand, emissions, water output and economic expenditure. Yet, alongside a uniform modelling omission from global climate models, mitigation of the urban heat island effect lacks a global standardised framework, representative data for modelling impacts, and robust academic outputs for policy incorporation. These limitations are precluding effective data-informed governance. 
This thesis presents a holistic policy-applicable approach for accurately monitoring and sustainably planning (re)development in relation to metropolitan and local level urban temperature dynamics. This is achieved through generating land cover maps from Earth observation data using a temporally consistent methodology with refinements to urban estimates based upon comparison to high resolution imagery. Variations between changes in land cover and land surface temperature are determined at the metropolitan level to aid sustainable urban growth plans. Temperature is then minimised at the local level through a modelling approach to optimally place vegetation with a proposed new development. The application area for this thesis is the Perth Metropolitan Region in Western Australia which has experienced sustained outward,non-strategic and low density expansion in response to booming natural resource sector. The presented methodology makes progress to aligning urban heat island mitigation efforts with global targets including the United Nation’s Sustainable Development Goals and New Urban Agenda, providing a reproducible method, transferable to other global metropolitan regions to improve sustainable city planning.

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Published date: September 2018

Identifiers

Local EPrints ID: 432276
URI: http://eprints.soton.ac.uk/id/eprint/432276
PURE UUID: 32cf8a07-35cc-4682-9510-4737468737fd

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Date deposited: 05 Jul 2019 16:30
Last modified: 30 Sep 2020 04:01

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