Spatiotemporal analysis of urban expansion classes in the megacity of Mexico City: an approach using spatial metrics

Authors: Gustavo Ovando-Montejo*, Utah State University, Gustavo Ovando, Utah State University, Amy Frazier, Arizona State University
Topics: Urban Geography, Land Use and Land Cover Change, Remote Sensing
Keywords: landscape ecology, metrics, Landsat, land cover change, multitemporal
Session Type: Virtual Paper
Day: 4/10/2021
Start / End Time: 1:30 PM / 2:45 PM
Room: Virtual 22
Presentation File: No File Uploaded

Urban expansion is a change in the physical landscape as well as the constant shift of environmental, social, economic, and political structure of a region. The most overwhelming characteristics of urbanization is the transformation of natural and agricultural lands into human-made impervious surfaces such as rooftops, roads, sidewalks, and parking lots. Geospatial methods exist capable of identifying the three main types of urban expansion, yet they are unable to assess the morphology qualities of the expansion. Research has established that morphology plays a pivotal role in shaping and altering habitats, ecosystems, water quality, surface temperatures, energy consumption, and pollution. We propose a geospatial method based spatial metrics and expansion techniques, capable of simultaneously assessing they type of urban expansion as well the overall morphology qualities of newly developed urban patches. The method is tested in Mexico City where urban expansion is large and complex.

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