MAPSECC: London v2.0 – new building roughness and morphology parameters

Hertwig, D. ORCID: https://orcid.org/0000-0002-2483-2675, Liu, Y. and Grimmond, S. ORCID: https://orcid.org/0000-0002-3166-9415 (2026) MAPSECC: London v2.0 – new building roughness and morphology parameters. Geoscience Data Journal. ISSN 2049-6060 doi: 10.1002/gdj3.70086 (In Press)

Abstract/Summary

Spatial characterisation of building morphology and roughness parameters is critical for modelling of urban aerodynamic, thermal and radiative exchange processes and their variability within the urban roughness sublayer. New parameters included in v2.0 of the MAPSECC: London database (Multi-scale harmonisation Across Physical and Socio-Economic Characteristics of a City region) capture the spatial variability of building roughness and morphology both horizontally across neighbourhoods of the city (500 m resolution), as well as vertically (1 m resolution). The latter allows modelling of height-variations of roughness-layer state variables including radiative exchange. New data features are: building plan and frontal area indices, total impervious fraction, ratio of exposed building envelope area to footprint area, momentum roughness length and displacement height, street-canyon aspect ratio and vertical profiles of building plan area index, building perimeter length and effective building diameter. The new processing follows the protocol and conventions established with database v1.0 (with >100 parameters), assuring that consistency is maintained across all building-related parameters and statistics.

Item Type	Article
URI	https://centaur.reading.ac.uk/id/eprint/130471
Identification Number/DOI	10.1002/gdj3.70086
Refereed	Yes
Divisions	Science > School of Mathematical, Physical and Computational Sciences > Department of Meteorology
Uncontrolled Keywords	building roughness, building morphology, roughness length, displacement height, height profiles, MAPSECC
Publisher	Wiley
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