Characterization of the temporal and spatial dynamics of the dengue epidemic in northern Sri Lanka

S. Anno, K. Imaoka, T. Tadono, T. Igarashi, S. Sivaganesh, S. Kannathasan, V. Kumaran, S. N. Surendran

Research output: Contribution to journalConference article

Abstract

Dengue outbreaks are affected by biological, ecological, socio-economic and demographic factors that vary over time and space. These factors have been examined separately, with limited success, and still require clarification. The present study aimed to investigate the spatial and temporal relationships between these factors and dengue outbreaks in the northern region of Sri Lanka. Remote sensing (RS) data gathered from a plurality of satellites: TRMM TMI, Aqua AMSR-E, GCOM-W AMSR2, DMSP SSM/I, DMSP SSMIS, NOAA-19 AMSU, MetOp-A AMSU and GEO IR were used to develop an index comprising rainfall. Humidity (total precipitable water, or vertically integrated water vapor amount) and temperature (surface temperature) data were acquired from the JAXA Satellite Monitoring for Environmental Studies (JASMES) portal which were retrieved and processed from the Aqua/MODIS and Terra/MODIS data. RS data gathered by ALOS/AVNIR-2 were used to detect urbanization, and a digital land cover map was used to extract land cover information. Other data on relevant factors and dengue outbreaks were collected through institutions and extant databases. The analyzed RS data and databases were integrated into geographic information systems, enabling both spatial association analysis and spatial statistical analysis. Our findings show that the combination of ecological factors derived from RS data and socio-economic and demographic factors is suitable for predicting spatial and temporal patterns of dengue outbreaks.

Original languageEnglish
Pages (from-to)163-166
Number of pages4
JournalInternational Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives
VolumeXL-8
Issue number1
DOIs
Publication statusPublished - 2014 Jan 1
EventISPRS Technical Commission 8th Mid-Term Symposium 2014 - Hyderabad, India
Duration: 2014 Dec 92014 Dec 12

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Keywords

  • Dengue
  • Ecological and socio-economic and demographic factors
  • Local moran LISA statistics
  • Spatial association analysis
  • Spatial statistical analysis
  • Temporal analysis

ASJC Scopus subject areas

  • Information Systems
  • Geography, Planning and Development

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