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The variation of air and surface temperatures in London within a 1km grid using vehicle-transect and ASTER data

Dos Santos, RS; Taylor, J; Davies, M; Mavrogianni, A; Milner, J; (2017) The variation of air and surface temperatures in London within a 1km grid using vehicle-transect and ASTER data. In: Proceedings of the 2017 Joint Urban Remote Sensing Event (JURSE). IEEE: Dubai, UAE. Green open access

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Abstract

Urbanisation can modify the local climate, increasing the temperature of cities compared to rural areas. This phenomenon is known as the Urban Heat Island (UHI), and this paper introduces a methodology to investigate the spatial variability of air and surface temperatures across London. In particular, this study aims to investigate if a widely used spatial resolution (1 km) is appropriate for heat-related health risk studies. Data from vehicle-transect and ASTER thermal images were overlaid on a reference grid of 1 km, used by UHI simulation models. The results showed higher variability of air temperature within some specific modelled grid cells in the city centre, while surface temperatures presented higher variability in the London borders. This investigation suggests that LST has larger variation levels and more grid cells with sub-grid variation above 1°C compared to air temperature measurements.

Type: Proceedings paper
Title: The variation of air and surface temperatures in London within a 1km grid using vehicle-transect and ASTER data
Event: 2017 Joint Urban Remote Sensing Event (JURSE)
ISBN-13: 9781509058082
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/JURSE.2017.7924613
Publisher version: http://dx.doi.org/10.1109/JURSE.2017.7924613
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Temperature measurement, Land surface temperature, Heating systems, Meteorology, Atmospheric modeling, Urban areas, Spatial resolution, atmospheric temperature, climatology, thermal pollution
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment > Bartlett School Env, Energy and Resources
URI: https://discovery.ucl.ac.uk/id/eprint/1559534
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