Comparison of GIS-based and high resolution satellite imagery population modeling

Autori

• Julia Kubanek

Parametri

• Scienze sociali

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The rapid growth of the world population has led to the emergence of numerous megacities, with the 1999 Izmit earthquake in Turkey serving as a stark example of the impact of natural hazards on such urban areas. On August 17, 1999, a magnitude 7.6 earthquake struck Izmit, resulting in 18,000 deaths and US$ 18 billion in economic losses. The likelihood of a similar earthquake affecting Istanbul in the next 30 years is estimated to be between 30% and 70%. To mitigate the effects of natural hazards, effective emergency management plans are crucial, relying heavily on current population and inventory data. However, traditional methods for generating this data are inadequate for today’s dynamic urban environments. Recently, remote sensing has emerged as a vital information source, yet detailed assessments of its applicability for urban contexts remain limited. Julia Kubanek's study quantitatively evaluates the use of Ikonos imagery (1m resolution) for population modeling in Zeytinburnu, Istanbul. The findings indicate that Ikonos images can enhance existing inventory datasets, although the automated extraction of individual buildings poses significant estimation errors. Kubanek advocates for replacing conventional, labor-intensive population estimation techniques with remote sensing as a novel data source in rapidly urbanizing regions. This work is aimed at professionals and researchers in geography, remote sensing, urban planning,

Lingua: Inglese

Pubblicato: 2011