Mapping urban growth of the capital city of Honduras from Landsat data using the impervious surface fraction algorithm

Nguyen Thanh Son, Chi Farn Chen, Cheng Ru Chen, Shou Hao Chiang

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

This study developed an impervious surface fraction algorithm (ISFA) for automatic mapping of urban areas from Landsat data. We processed the data for 2001 and 2014 to trace the urbanization of Tegucigalpa, the capital city of Honduras, using a four-step procedure: (1) data pre-processing to perform image reflectance normalization, (2) quantification of impervious surface area (ISA) using ISFA, (3) accuracy assessment of mapping results and (4) change analysis of urban growth. The mapping results compared with the ground reference data confirmed the validity of ISFA for automatic delineation of ISA in the study region. The overall accuracy and Kappa coefficient achieved for 2001 were 92.8% and 0.86, while the values for 2014 were 91.8% and 0.84, respectively. The results of change detection between the classification maps indicated that ISA increased approximately 1956.7 ha from 2001 to 2014, mainly attributing to the increase of the city’s population.

Original languageEnglish
Pages (from-to)328-341
Number of pages14
JournalGeocarto International
Volume31
Issue number3
DOIs
StatePublished - 15 Mar 2016

Keywords

  • Honduras
  • impervious surface fraction algorithm (ISFA)
  • Landsat
  • urbanization

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