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Proceedings Paper

Satellite data based approach for the estimation of anthropogenic heat flux over urban areas
Author(s): Theodoros Nitis; George Tsegas; Nicolas Moussiopoulos; Dimitrios Gounaridis; Dimitrios Bliziotis
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Paper Abstract

Anthropogenic effects in urban areas influence the thermal conditions in the environment and cause an increase of the atmospheric temperature. The cities are sources of heat and pollution, affecting the thermal structure of the atmosphere above them which results to the urban heat island effect. In order to analyze the urban heat island mechanism, it is important to estimate the anthropogenic heat flux which has a considerable impact on the urban energy budget. The anthropogenic heat flux is the result of man-made activities (i.e. traffic, industrial processes, heating/cooling) and thermal releases from the human body. Many studies have underlined the importance of the Anthropogenic Heat Flux to the calculation of the urban energy budget and subsequently, the estimation of mesoscale meteorological fields over urban areas. Therefore, spatially disaggregated anthropogenic heat flux data, at local and city scales, are of major importance for mesoscale meteorological models. The main objectives of the present work are to improve the quality of such data used as input for mesoscale meteorological models simulations and to enhance the application potential of GIS and remote sensing in the fields of climatology and meteorology. For this reason, the Urban Energy Budget concept is proposed as the foundation for an accurate determination of the anthropogenic heat discharge as a residual term in the surface energy balance. The methodology is applied to the cities of Athens and Paris using the Landsat ETM+ remote sensing data. The results will help to improve our knowledge on Anthropogenic Heat Flux, while the potential for further improvement of the methodology is also discussed.

Paper Details

Date Published: 6 September 2017
PDF: 9 pages
Proc. SPIE 10444, Fifth International Conference on Remote Sensing and Geoinformation of the Environment (RSCy2017), 104441P (6 September 2017); doi: 10.1117/12.2280826
Show Author Affiliations
Theodoros Nitis, Univ. of the Aegean (Greece)
Aristotle Univ. of Thessaloniki (Greece)
George Tsegas, Aristotle Univ. of Thessaloniki (Greece)
Nicolas Moussiopoulos, Aristotle Univ. of Thessaloniki (Greece)
Dimitrios Gounaridis, Univ. of the Aegean (Greece)
Dimitrios Bliziotis, Geosystems Hellas S.A. (Greece)


Published in SPIE Proceedings Vol. 10444:
Fifth International Conference on Remote Sensing and Geoinformation of the Environment (RSCy2017)
Kyriacos Themistocleous; Silas Michaelides; Giorgos Papadavid; Vincent Ambrosia; Gunter Schreier; Diofantos G. Hadjimitsis, Editor(s)

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