The variation of air and surface temperatures in London within a 1km grid using vehicle-transect and ASTER data
| Autor: | Jonathon Taylor, Rochelle Schneider dos Santos, Michael Davies, Anna Mavrogianni, James Milner |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010504 meteorology & atmospheric sciences
biology Simulation modeling Atmospheric model biology.organism_classification Atmospheric temperature Atmospheric sciences 01 natural sciences Thermal pollution 03 medical and health sciences 0302 clinical medicine Climatology Environmental science Spatial variability 030212 general & internal medicine Urban heat island Aster (genus) Transect 0105 earth and related environmental sciences |
| Zdroj: | JURSE |
| DOI: | 10.1109/jurse.2017.7924613 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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