Analysis of the role of urban vegetation in local climate of Budapest using satellite measurements

R. Pongrácz, J. Bartholy, Zsuzsanna Dezso, Cathy Fricke

Research output: Conference contribution

Abstract

Urban areas significantly modify the natural environment due to the concentrated presence of humans and the associated anthropogenic activities. In order to assess this effect, it is essential to evaluate the relationship between urban and vegetated surface covers. In our study we focused on the Hungarian capital, Budapest, in which about 1.7 million inhabitants are living nowadays. The entire city is divided by the river Danube into the hilly, greener Buda side on the west, and the flat, more densely built-up Pest side on the east. Most of the extended urban vegetation, i.e., forests are located in the western Buda side. The effects of the past changing of these green areas are analyzed using surface temperature data calculated from satellite measurements in the infrared channels, and NDVI (Normalized Difference Vegetation Index) derived from visible and near-infrared satellite measurements. For this purpose, data available from sensor MODIS (Moderate Resolution Imaging Spectroradiometer) of NASA satellites (i.e., Terra and Aqua) are used. First, the climatological effects of forests on the urban heat island intensity are evaluated. Then, we also aim to evaluate the relationship of surface temperature and NDVI in this urban environment with special focus on vegetation-related sections of the city where the vegetation cover either increased or decreased remarkably.

Original languageEnglish
Title of host publicationFourth International Conference on Remote Sensing and Geoinformation of the Environment, RSCy 2016
PublisherSPIE
Volume9688
ISBN (Electronic)9781628419238
DOIs
Publication statusPublished - 2016
Event4th International Conference on Remote Sensing and Geoinformation of the Environment, RSCy 2016 - Paphos, Cyprus
Duration: ápr. 4 2016ápr. 8 2016

Other

Other4th International Conference on Remote Sensing and Geoinformation of the Environment, RSCy 2016
CountryCyprus
CityPaphos
Period4/4/164/8/16

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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    Pongrácz, R., Bartholy, J., Dezso, Z., & Fricke, C. (2016). Analysis of the role of urban vegetation in local climate of Budapest using satellite measurements. In Fourth International Conference on Remote Sensing and Geoinformation of the Environment, RSCy 2016 (Vol. 9688). [96881J] SPIE. https://doi.org/10.1117/12.2240739