Understanding How Cities Grow Study Uses Archived Satellite Images
Expanding cities are causing irreversible damage to climate, water resources and biodiversity around them as they grow. More than half of the world's population is estimated to live in cities today, and the number is projected to rise further over the next decade. As cities emerge as the major economic drivers world over, it is essential to understand how our cities grow and ensure that the growth is sustainable.
In one such effort, Dr Priya Mendiratta and Prof. Shirish Gedam from the Indian Institute of Technology Bombay, have used satellite images to study how cities change in structure and form, with a focus on Mumbai.
(Mumbai 1992, image courtesy earthengine.google.com ) And Mumbai 26 years later: Urban planners need a preview of availability of new resources so as to facilitate the growth of cities, by addressing the patterns of changing land use and projecting their future growth to mitigate the negative impacts of urbanisation. Remote sensing technologies have opened new doors and have made it easier to collect data about the changes in land use with the help of satellite. Observing these changes over time is critical to get valuable insights essential for making decisions on the management of land, a sparse resource. Timelapse of Bellandur Lake, Bengaluru:
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(Mumbai 1992, image courtesy earthengine.google.com ) And Mumbai 26 years later: Urban planners need a preview of availability of new resources so as to facilitate the growth of cities, by addressing the patterns of changing land use and projecting their future growth to mitigate the negative impacts of urbanisation. Remote sensing technologies have opened new doors and have made it easier to collect data about the changes in land use with the help of satellite. Observing these changes over time is critical to get valuable insights essential for making decisions on the management of land, a sparse resource. Timelapse of Bellandur Lake, Bengaluru:
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