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Urban storage heat ...
Urban storage heat flux variability explored using satellite, meteorological and geodata
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- Lindberg, Fredrik, 1974 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences
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- Olofson, K. Frans G., 1976 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences
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Sun, T. (author)
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Grimmond, C. S. B. (author)
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Feigenwinter, C. (author)
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(creator_code:org_t)
- 2020-04-18
- 2020
- English.
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In: Theoretical and Applied Climatology. - : Springer Science and Business Media LLC. - 0177-798X .- 1434-4483. ; 141, s. 271-184
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Abstract
Subject headings
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- The storage heat flux (Delta Q(S)) is the net flow of heat stored within a volume that may include the air, trees, buildings and ground. Given the difficulty of measurement of this important and large flux in urban areas, we explore the use of Earth Observation (EO) data. EO surface temperatures are used with ground-based meteorological forcing, urban morphology, land cover and land use information to estimate spatial variations of Delta Q(S) in urban areas using the Element Surface Temperature Method (ESTM). First, we evaluate ESTM for four "simpler" surfaces. These have good agreement with observed values. ESTM coupled to SUEWS (an urban land surface model) is applied to three European cities (Basel, Heraklion, London), allowing EO data to enhance the exploration of the spatial variability in Delta Q(S). The impervious surfaces (paved and buildings) contribute most to Delta Q(S). Building wall area seems to explain variation of Delta Q(S) most consistently. As the paved fraction increases up to 0.4, there is a clear increase in Delta Q(S). With a larger paved fraction, the fraction of buildings and wall area is lower which reduces the high values of Delta Q(S).
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
Keyword
- mean radiant temperature
- balance scheme suews
- energy-balance
- air-temperature
- surface cover
- model
- city
- climate
- impact
- dry
- Meteorology & Atmospheric Sciences
Publication and Content Type
- ref (subject category)
- art (subject category)
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