Built-up area and land cover extraction using high resolution Pleiades Satellite Imagery for Midrand, in Gauteng Province, South Africa

E. Fundisi, W. Musakwa

Research output: Contribution to journalConference articlepeer-review

7 Citations (Scopus)

Abstract

Urban areas, particularly in developing countries face immense challenges such as climate change, poverty, lack of resources poor land use management systems, and week environmental management practices. Mitigating against these challenges is often hampered by lack of data on urban expansion, urban footprint and land cover. To support the recently adopted new urban agenda 2030 there is need for the provision of information to support decision making in the urban areas. Earth observation has been identified as a tool to foster sustainable urban planning and smarter cities as recognized by the new urban agenda, because it is a solution to unavailability of data. Accordingly, this study uses high resolution EO data Pleiades satellite imagery to map and document land cover for the rapidly expanding area of Midrand in Johannesburg, South Africa. An unsupervised land cover classification of the Pleiades satellite imagery was carried out using ENVI software, whereas NDVI was derived using ArcGIS software. The land cover had an accuracy of 85% that is highly adequate to document the land cover in Midrand. The results are useful because it provides a highly accurate land cover and NDVI datasets at localised spatial scale that can be used to support land use management strategies within Midrand and the City of Johannesburg South Africa.

Original languageEnglish
Pages (from-to)1151-1156
Number of pages6
JournalInternational Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives
Volume42
Issue number2W7
DOIs
Publication statusPublished - 12 Sept 2017
EventISPRS Geospatial Week 2017 - Wuhan, China
Duration: 18 Sept 201722 Sept 2017

Keywords

  • Built-up
  • Earth observation
  • Land cover
  • Pleiades
  • South Africa
  • Urban

ASJC Scopus subject areas

  • Information Systems
  • Geography, Planning and Development

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