Urban storage heat flux variability explored using satellite, meteorological and geodata

Lindberg, F., Olofson, K. F. G., Sun, T. ORCID: https://orcid.org/0000-0002-2486-6146, Grimmond, C. S. B. ORCID: https://orcid.org/0000-0002-3166-9415 and Feigenwinter, C. (2020) Urban storage heat flux variability explored using satellite, meteorological and geodata. Theoretical and Applied Climatology, 141 (1-2). pp. 271-284. ISSN 1434-4483 doi: 10.1007/s00704-020-03189-1

Abstract/Summary

The storage heat flux (ΔQS) 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 ΔQS 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 ΔQS. The impervious surfaces (paved and buildings) contribute most to ΔQS. Building wall area seems to explain variation of ΔQS most consistently. As the paved fraction increases up to 0.4, there is a clear increase in ΔQS. With a larger paved fraction, the fraction of buildings and wall area is lower which reduces the high values of ΔQS.

Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/90421
Item Type	Article
Refereed	Yes
Divisions	Science > School of Mathematical, Physical and Computational Sciences > Department of Meteorology
Publisher	Springer
Download/View statistics	View download statistics for this item