VISUALISATION OF DEPENDENCIES BETWEEN CITY STRUCTURE AND THERMAL BEHAVIOUR IN BRNO
Good understanding of a city’s thermal regime and its dependency on the structure of the city provides key knowledge serving as an input for long-term strategic decision-making by local governments. The urban heat island, and more specifically overheating of the streets and adjacent buildings during...
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Series: | The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
Online Access: | https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLI-B2/741/2016/isprs-archives-XLI-B2-741-2016.pdf |
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doaj-e8a1a70a9a664300a91f04c7f55d89e62020-11-24T21:05:30ZengCopernicus PublicationsThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences1682-17502194-90342016-06-01XLI-B274174510.5194/isprs-archives-XLI-B2-741-2016VISUALISATION OF DEPENDENCIES BETWEEN CITY STRUCTURE AND THERMAL BEHAVIOUR IN BRNOJ. Novotny0M. Pivovarnik1S. J. Khalsa2F. Zemek3Dept. of Remote Sensing, Global Change Research Institute CAS, Bělidla 986/4a, 603 00 Brno, Czech RepublicDept. of Remote Sensing, Global Change Research Institute CAS, Bělidla 986/4a, 603 00 Brno, Czech RepublicDept. of Remote Sensing, Global Change Research Institute CAS, Bělidla 986/4a, 603 00 Brno, Czech RepublicDept. of Remote Sensing, Global Change Research Institute CAS, Bělidla 986/4a, 603 00 Brno, Czech RepublicGood understanding of a city’s thermal regime and its dependency on the structure of the city provides key knowledge serving as an input for long-term strategic decision-making by local governments. The urban heat island, and more specifically overheating of the streets and adjacent buildings during summer heat waves, has been pointed out as an important issue in the city of Brno, Czech Republic. A complex research effort using remote sensing techniques has started which will analyse the impact of city structure on the thermal behaviour, principally the role of vegetation in the thermal regulation of streets. Two airborne data sets were acquired: hyperspectral data using CASI, SASI and TASI sensors (ITRES, Canada) and lidar mapping using a Riegl 680i instrument (RIEGL, Austria). The thermal data were acquired on two occasions: 7 February 2015 (winter season) and 4 July 2015 (summer season). A laser scanning data-set was acquired on 22 September 2015 with a point cloud density of approximately 15 points/m<sup>2</sup>. Surface temperature was retrieved from the thermal hyperspectral data by applying a temperature-emissivity separation algorithm. The 3-D structure of the city was classified from the laser scanning data; we distinguished three main classes: bare land, buildings and vegetation. In the paper we present figures comparing thermal behaviour with other features collected along linear transects through the central part of the city.https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLI-B2/741/2016/isprs-archives-XLI-B2-741-2016.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
J. Novotny M. Pivovarnik S. J. Khalsa F. Zemek |
spellingShingle |
J. Novotny M. Pivovarnik S. J. Khalsa F. Zemek VISUALISATION OF DEPENDENCIES BETWEEN CITY STRUCTURE AND THERMAL BEHAVIOUR IN BRNO The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
author_facet |
J. Novotny M. Pivovarnik S. J. Khalsa F. Zemek |
author_sort |
J. Novotny |
title |
VISUALISATION OF DEPENDENCIES BETWEEN CITY STRUCTURE AND THERMAL BEHAVIOUR IN BRNO |
title_short |
VISUALISATION OF DEPENDENCIES BETWEEN CITY STRUCTURE AND THERMAL BEHAVIOUR IN BRNO |
title_full |
VISUALISATION OF DEPENDENCIES BETWEEN CITY STRUCTURE AND THERMAL BEHAVIOUR IN BRNO |
title_fullStr |
VISUALISATION OF DEPENDENCIES BETWEEN CITY STRUCTURE AND THERMAL BEHAVIOUR IN BRNO |
title_full_unstemmed |
VISUALISATION OF DEPENDENCIES BETWEEN CITY STRUCTURE AND THERMAL BEHAVIOUR IN BRNO |
title_sort |
visualisation of dependencies between city structure and thermal behaviour in brno |
publisher |
Copernicus Publications |
series |
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
issn |
1682-1750 2194-9034 |
publishDate |
2016-06-01 |
description |
Good understanding of a city’s thermal regime and its dependency on the structure of the city provides key knowledge serving as an input for long-term strategic decision-making by local governments. The urban heat island, and more specifically overheating of the streets and adjacent buildings during summer heat waves, has been pointed out as an important issue in the city of Brno, Czech Republic. A complex research effort using remote sensing techniques has started which will analyse the impact of city structure on the thermal behaviour, principally the role of vegetation in the thermal regulation of streets. Two airborne data sets were acquired: hyperspectral data using CASI, SASI and TASI sensors (ITRES, Canada) and lidar mapping using a Riegl 680i instrument (RIEGL, Austria). The thermal data were acquired on two occasions: 7 February 2015 (winter season) and 4 July 2015 (summer season). A laser scanning data-set was acquired on 22 September 2015 with a point cloud density of approximately 15 points/m<sup>2</sup>. Surface temperature was retrieved from the thermal hyperspectral data by applying a temperature-emissivity separation algorithm. The 3-D structure of the city was classified from the laser scanning data; we distinguished three main classes: bare land, buildings and vegetation. In the paper we present figures comparing thermal behaviour with other features collected along linear transects through the central part of the city. |
url |
https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLI-B2/741/2016/isprs-archives-XLI-B2-741-2016.pdf |
work_keys_str_mv |
AT jnovotny visualisationofdependenciesbetweencitystructureandthermalbehaviourinbrno AT mpivovarnik visualisationofdependenciesbetweencitystructureandthermalbehaviourinbrno AT sjkhalsa visualisationofdependenciesbetweencitystructureandthermalbehaviourinbrno AT fzemek visualisationofdependenciesbetweencitystructureandthermalbehaviourinbrno |
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