Estimate of housing and population in landslide risk areas in California (USA) and coastal São Paulo (Brazil)

Authors

  • Saulo de Oliveira-Folharini, Doctorando University of Campinas, Brazil
  • Regina Célia de-Oliveira, Doctora Universidade Estadual de Campinas, Brazil
  • J. Christopher Brown University of Kansas, United States

DOI:

https://doi.org/10.15359/rgac.61-3.16

Keywords:

Landslide, Risk, Satellite Image, Estimate, Urban Area

Abstract

The States of California and São Paulo are associated historically with natural disasters including forest fires and high precipitation, respectively. These events end up causing numerous deaths and financial and social losses. Even in the face of loss of life, and in some cases despite the lack of urban planning, populations still choose to live in places of risk, valuing them for scenic beauty or exclusivity. The aim of this study is to estimate the amount of people and housing in landslide risk areas in California and the São Paulo state coastal zone, using satellite image classification, Aster DEM and census data. The results indicate that in California, from 2000 to 2016, the urban area increased 1.83% and São Paulo increased 14.92%, indicating that occupation in the landslide risk area in California was already consolidated, and in São Paulo there was a large increase in risk because the increased population. Compared to California, São Paulo’s population and housing is a much greater landslide risk.

Author Biographies

Saulo de Oliveira-Folharini, Doctorando, University of Campinas

PhD Candidate in Geography, University of Campinas, Brazil, sfolharini@gmail.com

Regina Célia de-Oliveira, Doctora, Universidade Estadual de Campinas

Dra. Professor of Geography Department, University of Campinas, Brazil, reginacoliveira@ige.unicamp.br

J. Christopher Brown, University of Kansas

Dr. Professor of Environmental Studies Program, the University of Kansas, USA. jcbrown2@ku.edu

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Published

2018-11-23

How to Cite

de Oliveira-Folharini, S., de-Oliveira, R. C., & Brown, J. C. (2018). Estimate of housing and population in landslide risk areas in California (USA) and coastal São Paulo (Brazil). Geographical Journal of Central America, 3(61E), 319-337. https://doi.org/10.15359/rgac.61-3.16

Issue

Section

Case studies (Peer reviewed)

How to Cite

de Oliveira-Folharini, S., de-Oliveira, R. C., & Brown, J. C. (2018). Estimate of housing and population in landslide risk areas in California (USA) and coastal São Paulo (Brazil). Geographical Journal of Central America, 3(61E), 319-337. https://doi.org/10.15359/rgac.61-3.16

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