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Influence of ground...
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Lindberg, Fredrik,1974Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences
(författare)
Influence of ground surface characteristics on the mean radiant temperature in urban areas
- Artikel/kapitelEngelska2016
Förlag, utgivningsår, omfång ...
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2016-02-06
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Springer Science and Business Media LLC,2016
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LIBRIS-ID:oai:gup.ub.gu.se/246683
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https://gup.ub.gu.se/publication/246683URI
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https://doi.org/10.1007/s00484-016-1135-xDOI
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The effect of variations in land cover on mean radiant temperature (T-mrt) is explored through a simple scheme developed within the radiation model SOLWEIG. Outgoing longwave radiation is parameterised using surface temperature observations on a grass and an asphalt surface, whereas outgoing shortwave radiation is modelled through variations in albedo for the different surfaces. The influence of ground surface materials on T-mrt is small compared to the effects of shadowing. Nevertheless, altering ground surface materials could contribute to a reduction in T-mrt to reduce the radiant load during heat-wave episodes in locations where shadowing is not an option. Evaluation of the new scheme suggests that despite its simplicity it can simulate the outgoing fluxes well, especially during sunny conditions. However, it underestimates at night and in shadowed locations. One grass surface used to develop the parameterisation, with very different characteristics compared to an evaluation grass site, caused T-mrt to be underestimated. The implications of using high temporal resolution (e.g. 15 minutes) meteorological forcing data under partly cloudy conditions are demonstrated even for fairly proximal sites.
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Onomura, Shiho,1985Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences(Swepub:gu)xonosh
(författare)
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Grimmond, C. S. B.
(författare)
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Göteborgs universitetInstitutionen för geovetenskaper
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:International Journal of Biometeorology: Springer Science and Business Media LLC60:9, s. 1439-14520020-71281432-1254
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